Recycling and discharging device for power battery

Abstract

The invention relates to the technical field of battery recycling, in particular to a recycling and discharging device for a power battery. The technical problems are as follows: floating foam affects heat dissipation, heat accumulation accelerates the evaporation speed of saline water, potential safety hazards exist while the discharge effect is affected, the concentration of initial saline water is reduced due to decomposition of sodium chloride, the discharge speed of the initial saline water to a battery pack is gradually slowed down, and the battery pack is damaged. Therefore, the discharging efficiency of the battery pack is influenced. The recycling and discharging device for the power battery comprises a discharging battery, and four pulley yokes are arranged at the bottom of the discharging battery. A positive electrode and a negative electrode of the battery pack generate a loop through saline water for slow discharging, the soaking plate presses the floating swelled battery pack into the saline water, so that the battery pack is in full contact with the saline water, the battery pack is fully discharged, the discharging efficiency is remarkably improved, floating foam is scraped out of the battery through movement of the scraping plate, and the influence on heat dissipation is reduced; therefore, the evaporation speed of the brine is reduced, and the discharge effect is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery recycling, and in particular to a recycling and discharging device for power batteries. Background Art

[0002] When recycling power batteries, in order to avoid safety hazards, the internal battery packs need to be discharged before being crushed. Traditional discharge methods are divided into physical discharge and chemical discharge, among which chemical discharge is more stable and safe. The principle of chemical discharge is to place the battery packs to be discharged in batches into salt water (sodium chloride solution) with a concentration of 5%-10%. The salt water will create a circuit for the positive and negative poles of the battery pack to discharge. During the discharge process, staff usually use an immersion plate to press the bulging battery packs floating on the surface of the salt water into the salt water for full reaction to achieve the purpose of effective discharge.

[0003] Since sodium chloride decomposes into sodium hydroxide, chlorine, and hydrogen during the power-on process, and the battery pack produces corrosive products, these corrosive products and sodium hydroxide will float on the surface of the brine along with the chlorine and hydrogen to form foam. At the same time, heat is generated during the discharge process, and the foam affects the dissipation of heat. However, when discharging the battery pack, the current discharge device is not convenient for scraping off the generated foam, resulting in heat accumulation and accelerated evaporation of the brine, thereby affecting the discharge effect and posing a safety hazard. In addition, the decomposition of sodium chloride causes the concentration of the initial brine to decrease. However, the existing discharge device is not convenient for scraping off the foam while continuously injecting high-concentration brine into the discharge cell to maintain the concentration, resulting in a gradual slowdown in the discharge rate of the initial brine to the battery pack, thereby affecting the discharge efficiency of the battery pack. Summary of the Invention

[0004] In order to overcome the above shortcomings, the present invention provides a recovery and discharge device for power batteries, which can scrape off foam, reduce heat dissipation, lower the evaporation rate of brine, and can fully inject high-concentration brine into the discharge battery while scraping off foam to maintain the initial brine concentration, thereby improving discharge efficiency.

[0005] Technical solution: A recovery and discharge device for power batteries, including:

[0006] A discharge battery, the bottom of which is provided with four pulley racks;

[0007] Immersing mechanism, provided on the battery;

[0008] The outer frame is mounted on the battery;

[0009] A support frame is fixedly connected to the outer frame;

[0010] The scraping mechanism is arranged between the outer frame, the support frame and the battery.

[0011] As a further preferred solution, the immersion mechanism includes: two limit frames, fixedly connected to the battery; two electric push rods, respectively installed on the two limit frames; the bottom ends of the push rods of the two electric push rods are installed with sleeves; an immersion plate rotatably connected between the two sleeves, the two ends of the immersion plate are respectively slidably connected to the two limit frames, and spline grooves are provided on both sides of the immersion plate; two rubber rings, respectively installed on the inner sides of the two sleeves and respectively in close contact with the two spline grooves; tooth columns respectively fixed to the two ends of the immersion plate; and tooth plates respectively fixed to one side of the inner wall of the two limit frames.

[0012] As a further preferred solution, the scraping mechanism includes: two sleeves, respectively fixed to the top of the two sides of the battery and respectively fixed to the top of the two limit frames, and the two sleeves have a sliding groove on the side close to each other; two bidirectional screw rods are rotatably connected to the inside of the two sleeves; threaded blocks are respectively connected to the two bidirectional screw rods by threads; a scraper installed between the two threaded blocks, and the two sides of the scraper are respectively slidably connected to the sliding grooves of the two sleeves; a motor fixed to the support frame; and a transmission component 1 provided between the motor output shaft and the two bidirectional screw rods.

[0013] As a further preferred solution, the transmission component 1 consists of a double-grid toothed transmission wheel, two small-grid toothed transmission wheels and two toothed belts. The double-grid toothed transmission wheel is fixed to the motor output shaft, and the two small-grid toothed transmission wheels are respectively fixed to one end of two bidirectional screw rods. One of the toothed belts is wound between one grid of the double-grid toothed transmission wheel and one of the small-grid toothed transmission wheels, and the other toothed belt is wound between the other grid of the double-grid toothed transmission wheel and the other small-grid toothed transmission wheel.

[0014] As a further preferred solution, it further includes: a water tank fixedly connected to the outer frame; and two fixing frames fixedly connected to both sides of the inner bottom of the outer frame.

[0015] As a further preferred embodiment, a concentration increasing mechanism is also included, which is arranged between the motor output shaft, the fixed frame and the water tank. The concentration increasing mechanism includes: two piston cylinders, respectively fixed to the two fixed frames; two piston rods, respectively slidably connected to the two piston cylinders; two sliders, respectively fixed to one end of the two piston rods; an eccentric slide rail fixed to the motor output shaft, and both sliders are slidably connected to the eccentric slide rail; and a spray assembly arranged between the water tank and the piston cylinder.

[0016] As a further preferred embodiment, the spray assembly includes: two one-way valves (I), respectively connected to the upper part of the side of the two piston cylinders away from each other; two one-way valves (II), respectively connected to the lower part of the side of the two piston cylinders away from each other; two liquid inlet pipes, respectively installed on the two one-way valves (I), and the other ends of the two liquid inlet pipes are respectively connected to the two sides of the bottom of the water tank; two liquid outlet pipes, respectively installed on the two one-way valves (II), and the other ends of the two liquid outlet pipes are connected to the inside of the discharge battery; two spray barrels are respectively rotatably connected to the bottom ends of the two liquid outlet pipes.

[0017] As a further preferred solution, a plurality of spray holes are opened on the side wall of the spray barrel.

[0018] As a further preferred embodiment, a swing mechanism is further included, which is provided on the discharge cell, the outer frame and the piston rod, and the swing mechanism includes: two outer shells fixedly connected to the discharge cell; two rotating shafts, which are respectively rotatably connected to the two outer shells and the tops are rotatably connected to the bottom of the outer frame; two transmission components provided between the spray barrel and the rotating shafts, a total of two; two gear columns respectively fixed to the tops of the two rotating shafts; and rack racks respectively fixed to the ends of the two piston rods close to each other, and the two rack racks are respectively engaged with the two gear columns.

[0019] As a further preferred solution, the transmission component 2 consists of two pulleys and a flat belt. The two pulleys are respectively fixed to the spray barrel and the rotating shaft, and a flat belt is wound between the two pulleys.

[0020] The beneficial effects of the present invention are as follows: 1. The present invention uses salt water with a concentration of 5%-10% to generate a loop for the positive and negative electrodes of the battery pack to slowly discharge; during the discharge process, the immersion plate presses the bulging battery pack floating on the surface of the salt water completely downward into the salt water, so that the battery pack is fully in contact with the salt water, thereby fully discharging the battery pack and significantly improving the discharge efficiency; after continuous discharge, the scraper moves to scrape the foam out of the battery, reducing the impact on heat dissipation, thereby reducing the evaporation rate of the salt water, and thus enhancing the discharge effect.

[0021] 2. The motor drives the eccentric slide to rotate through the slider to make the piston rod move back and forth horizontally, and then the high-concentration brine in the water tank is gradually sprayed into the initial brine of the discharge battery through the spray barrel through the piston cylinder, thereby maintaining the brine concentration in the discharge battery between 5% and 10%, while keeping the water volume of the brine unchanged, thereby maintaining the discharge speed, and further improving the discharge efficiency.

[0022] 3. The piston rod drives the rack to move back and forth horizontally, and drives the rotating shaft to rotate back and forth through the gear column 2. The rotating shaft drives the spray barrel to rotate back and forth through the transmission component 2. Under the action of centrifugal force, the sprayed high-concentration brine is fully mixed with the initial brine, making the brine in the battery more uniform, and then making the discharge of the battery pack more uniform and sufficient, thereby further enhancing the power generation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention in an immersed state.

[0025] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the soaking mechanism of the present invention.

[0027] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the soaking mechanism of the present invention.

[0028] Figure 6 It is a schematic diagram of a partially cutaway three-dimensional structure of the soaking mechanism of the present invention.

[0029] Figure 7 It is a partial cross-sectional three-dimensional structural schematic diagram of the sleeve, rubber ring and soaking plate of the present invention.

[0030] Figure 8 It is a schematic diagram of the split three-dimensional structure of the soaking mechanism of the present invention.

[0031] Figure 9 It is a partial cross-sectional three-dimensional structural schematic diagram of the outer frame and sleeve of the present invention.

[0032] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0033] Figure 11 It is a partial cross-sectional perspective structural diagram of the outer frame and water tank of the present invention.

[0034] Figure 12 It is a schematic diagram of the disassembled three-dimensional structure of the scraping mechanism of the present invention.

[0035] Figure 13 This is a partially cutaway perspective structural diagram of the concentration enhancing mechanism, outer frame, and water tank of the present invention.

[0036] Figure 14 It is a schematic diagram of the three-dimensional structure of the concentration mechanism of the present invention.

[0037] Figure 15 It is a partially cutaway three-dimensional structural schematic diagram of the concentration enhancing mechanism of the present invention.

[0038] Figure 16 It is a schematic diagram of the cross-sectional three-dimensional structure of the liquid outlet pipe and the spray barrel of the present invention.

[0039] Figure 17 It is a partial three-dimensional structural diagram of the swing mechanism and the concentration-enhancing mechanism of the present invention.

[0040] Figure 18 It is a partially cutaway perspective structural diagram of the swing mechanism and the spray barrel of the present invention.

[0041] Among them: 1_battery, 101_pulley frame, 21_limit frame, 22_electric push rod, 23_head, 24_rubber ring, 25_immersion plate, 251_spline groove, 26_tooth column one, 27_tooth plate, 31_outer frame, 32_support frame, 41_sleeve, 42_bidirectional screw rod, 43_thread block, 44_scraper, 45_motor, 46_transmission component one, 51_water tank, 52_fixed frame, 61_piston cylinder, 62_piston rod, 63_slider, 64_eccentric slide rail, 651_one-way valve one, 652_one-way valve two, 653_liquid inlet pipe, 654_liquid outlet pipe, 655_spraying tube, 71_housing, 72_rotating shaft, 73_transmission component two, 74_tooth column two, 75_rack frame. DETAILED DESCRIPTION

[0042] The preferred technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Example 1: A recovery and discharge device for a power battery, such as Figures 1-12 Shown, including:

[0044] The battery pack 1 is used to soak the battery pack. Four pulley racks 101 are provided at the bottom of the battery pack 1.

[0045] The immersion mechanism is used to squeeze the battery pack floating on the surface of the salt water and is provided on the battery 1;

[0046] The outer frame 31 is mounted on the battery 1;

[0047] Support frame 32, welded inside outer frame 31;

[0048] The scraping mechanism is used to scrape off the foam on the surface of the salt water and is arranged between the outer frame 31, the support frame 32 and the discharge cell 1.

[0049] The immersion mechanism includes: two limit frames 21, which are symmetrically arranged and welded to both sides of the inner upper wall of the battery 1; two electric push rods 22, respectively installed on the side of the two limit frames 21 close to each other; the bottom ends of the push rods of the two electric push rods 22 are both installed with sleeves 23; an immersion plate 25 rotatably connected between the two sleeves 23, used to squeeze the battery pack floating on the surface of the salt water, the two ends of the immersion plate 25 are respectively slidably connected to the two limit frames 21, and spline grooves 251 are provided on both sides of the immersion plate 25 at the connection between the two sleeves 23; two rubber rings 24, respectively installed on the inner sides of the two sleeves 23 and respectively in close contact with the two spline grooves 251, so that the immersion plate 25 will not rotate by itself under the action of its own gravity; tooth columns 26 connected to both ends of the immersion plate 25 by flat keys, respectively, are located inside the two limit frames 21; tooth plates 27 connected to one side of the inner wall of the two limit frames 21 by bolts, used to drive the tooth column 26 to rotate.

[0050] The scraping mechanism includes: two sleeves 41, which are symmetrically arranged and respectively welded to the top of the two sides of the battery 1 and the top of the two limit frames 21, and the two sleeves 41 are respectively welded to the top of each other. A slide groove is provided on the side close to each other; two bidirectional screw rods 42 are respectively rotatably connected to the inside of the two sleeves 41, and one end of the two bidirectional screw rods 42 is connected to the inside of the outer frame 31; threaded blocks 43 are respectively connected to the two bidirectional screw rods 42 by threads; a scraper 44 is installed between the two threaded blocks 43, and the two sides of the scraper 44 are respectively slidably connected to the slide grooves of the two sleeves 41, and the scraper 44 is used to scrape off the foam on the surface of the brine; a motor 45 connected to the support frame 32 by bolts; a transmission component 46 provided between the output shaft of the motor 45 and the two bidirectional screw rods 42, and is located in the outer frame 31.

[0051] The transmission component 46 consists of a double-grid toothed transmission wheel, two small-grid toothed transmission wheels and two toothed belts. The double-grid toothed transmission wheel is connected to the output shaft of the motor 45 through a keyway. The two small-grid toothed transmission wheels are respectively connected to one end of the two bidirectional lead screws 42 through keyways. One toothed belt is wound around one grid of the double-grid toothed transmission wheel and one of the small-grid toothed transmission wheels, and the other toothed belt is wound around the other grid of the double-grid toothed transmission wheel and the other small-grid toothed transmission wheel. The output shaft of the motor 45 rotates through the transmission component 46 to drive the two bidirectional lead screws 42 to rotate.

[0052] When the battery pack needs to be discharged, the staff first fills the battery pack 1 with salt water to make the salt water concentration reach 5%-10%, and then puts the battery pack to be discharged into the battery pack 1 filled with salt water. The positive and negative poles of the battery pack are slowly discharged through the salt water to generate a circuit; during the discharge process, part of the bulging battery pack will float on the surface of the salt water. The staff can control the push rod of the electric push rod 22 to extend downward to drive the sleeve 23, rubber ring 24, immersion plate 25 and tooth column 1 26 to move downward together. The immersion plate 25 moves downward and is partially immersed in the salt water. The tooth column 1 26 moves downward and engages with the tooth plate 27. The tooth column 1 26 continues to move downward. Figure 2 As shown, the tooth plate 27 will drive the immersion plate 25 to rotate 90 degrees to a horizontal state and completely immersed in the salt water through the tooth column 1 26. In this way, the immersion plate 25 will completely press the bulging battery pack floating on the surface of the salt water downward into the salt water, so that the battery pack is fully in contact with the salt water, thereby allowing the battery pack to fully discharge, significantly improving the discharge efficiency; after continuous discharge, some battery packs will be corroded to varying degrees, and there is even the possibility of leakage. At the same time, the sodium chloride in the salt water will decompose into sodium hydroxide, hydrogen and chlorine when electrified. Among them, sodium hydroxide, leakage and corrosion products of the battery pack will float on the surface of the salt water with chlorine and hydrogen to form foam, and sodium chloride will generate heat during the discharge and decomposition process. The accumulation of foam will make it impossible to dissipate heat. The staff can start the motor 45, and the output shaft of the motor 45 rotates through the transmission component 1 46 to drive the two The bidirectional screw rod 42 rotates, and the rotation of the bidirectional screw rod 42 drives the scraper 44 to move along the slide groove of the sleeve frame 41 in the direction away from the motor 45 through the threaded block 43. Then the bidirectional screw rod 42 continues to rotate through the threaded block 43 to drive the scraper 44 to reset. Then the staff turns off the motor 45. In this way, the movement of the scraper 44 will scrape the foam out of the battery 1, reducing the impact on heat dissipation, and then reducing the evaporation rate of the brine, thereby enhancing the discharge effect; after the discharge is completed, the staff controls the push rod of the electric push rod 22 to retract and drive the sleeve head 23, rubber ring 24, immersion plate 25 and tooth column 1 26 to reset together, and the tooth plate 27 causes the immersion plate 25 to rotate 90 degrees in the opposite direction through the tooth column 1 26 to reset. Then the tooth plate 27 disengages from the tooth column 1 26, and then the staff takes out the discharged battery pack and then processes the discharged brine.

[0053] Example 2: Based on Example 1, Figure 1-Figure 3 、 Figure 9 and Figures 13-18 As shown, it also includes: a water tank 51 connected to the outer frame 31 by bolts, and the water tank 51 is used to hold high-concentration salt water; two fixing frames 52, which are respectively welded to both sides of the inner bottom of the outer frame 31.

[0054] It also includes a concentration mechanism for intermittently injecting high-concentration salt water into the discharge battery 1, which is arranged between the output shaft of the motor 45, the fixed frame 52 and the water tank 51. The concentration mechanism includes: two piston cylinders 61, which are respectively connected to the two fixed frames 52 by bolts and are symmetrically arranged; two piston rods 62, which are respectively slidably connected to the two piston cylinders 61; two sliders 63, which are respectively bolted to the ends of the two piston rods 62 close to each other; an eccentric slide rail 64 connected to the output shaft of the motor 45 by a keyway, and the two sliders 63 are both slidably connected to the eccentric slide rail 64, and the eccentric slide rail 64 is used to drive the two sliders 63 to move back and forth; a spraying assembly provided between the water tank 51 and the piston cylinder 61, which is used to spray high-concentration salt water.

[0055] The spray assembly includes: two one-way valves 651, each connected to the upper portion of the two piston cylinders 61 on the side away from each other; two one-way valves 652, each connected to the lower portion of the two piston cylinders 61 on the side away from each other; two liquid inlet pipes 653, each mounted on the two one-way valves 651, the other ends of the two liquid inlet pipes 653 passing through the top sides of the outer frame 31 and communicating with the bottom sides of the water tank 51; two liquid outlet pipes 654, each mounted on the two one-way valves 652, the other ends of the two liquid outlet pipes 654 passing through the bottom sides of the outer frame 31 and communicating with the interior of the discharge cell 1; and two spray barrels 655, each rotatably connected to the bottom ends of the two liquid outlet pipes 654 and located inside the discharge cell 1. The two spray barrels 655 are used to spray high-concentration salt water.

[0056] The side wall of the spray barrel 655 is provided with a plurality of spray holes, which can evenly spray high-concentration salt water into the battery 1.

[0057] Initially, the water tank 51 is filled with high-concentration salt water. During the decomposition of sodium chloride, the concentration of the salt water will gradually decrease. At the same time, the heat generated during the decomposition process will cause the salt water to evaporate slowly. When the staff is scraping off the foam, the sodium chloride has just decomposed to a certain extent, and a small part of the salt water will evaporate, and the concentration of the salt water will also decrease to a certain extent. At this time, the rotation of the output shaft of the motor 45 will drive the eccentric slide 64 to rotate. The rotation of the eccentric slide 64 will drive the two piston rods 62 to move back and forth horizontally through the two sliders 63. When the piston rod 62 moves toward the eccentric slide 64, the piston rod 62 will sequentially pump the high-concentration salt water in the water tank 51 into the piston cylinder 6 through the one-way valve 1 651 and the liquid inlet pipe 653. 1, when the piston rod 62 moves away from the eccentric slide rail 64, the piston rod 62 will discharge the high-concentration salt water sucked into the piston cylinder 61 through the second one-way valve 652 and the liquid outlet pipe 654 into the spray barrel 655 in sequence. The high-concentration salt water in the spray barrel 655 will be evenly sprayed into the initial salt water in the discharge cell 1 through the multiple spray holes of the spray barrel 655. In this way, the lateral reciprocating movement of the piston rod 62 will gradually spray the high-concentration salt water in the water tank 51 into the initial salt water in the discharge cell 1 through the spray barrel 655, thereby maintaining the concentration of the salt water in the discharge cell 1 between 5% and 10%. At the same time, the water volume of the salt water remains unchanged, thereby maintaining the discharge speed, thereby further improving the discharge efficiency.

[0058] Example 3: Based on Example 2, Figure 9 、 Figure 11 、 Figure 17 and Figure 18 As shown, a swing mechanism is also included for causing the spray barrel 655 to swing back and forth during spraying. The mechanism is provided on the discharge cell 1, the outer frame 31, and the piston rod 62. The swing mechanism includes: two housings 71 welded to the discharge cell 1, one side of the housing 71 being located inside the discharge cell 1 and the other side being located outside the discharge cell 1, and one side of the housing 71 being sleeved over the top of the spray barrel 655; two rotating shafts 72, each rotatably connected to the two housings 71 and having its top rotatably connected to the bottom of the outer frame 31; two transmission assemblies 73, each located inside the two housings 71, provided between the spray barrel 655 and the rotating shafts 72; two gear posts 74, each connected to the top of the two rotating shafts 72 by a keyway, both located inside the outer frame 31; and rack racks 75, each bolted to the mutually adjacent ends of the two piston rods 62, the two rack racks 75 respectively meshing with the two gear posts 74.

[0059] The second transmission component 73 consists of two pulleys and a flat belt. The two pulleys are connected to the spray barrel 655 and the rotating shaft 72 through keyways respectively, and a flat belt is wound between the two pulleys.

[0060] While spraying high-concentration brine, the piston rod 62 moves back and forth laterally, which drives the rack rack 75 to move back and forth laterally. The rack rack 75 moves back and forth laterally through the gear column 2 74, and the rotating shaft 72 rotates back and forth through the transmission component 2 73, which drives the spray barrel 655 to rotate back and forth. Then, under the action of centrifugal force, the sprayed high-concentration brine can be fully mixed with the initial brine, making the brine in the battery 1 more uniform, and thus making the discharge of the battery pack more uniform and sufficient, thereby further enhancing the power generation effect.

[0061] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A recovery and discharge device for power batteries, characterized in that: include: A discharge battery (1), wherein four pulley frames (101) are provided at the bottom of the discharge battery (1); A soaking mechanism is provided on the battery (1); An outer frame (31) is mounted on the battery (1); A support frame (32) is fixedly connected to the outer frame (31); The scraping mechanism is arranged between the outer frame (31), the support frame (32) and the discharge battery (1).

2. The recovery and discharge device for power batteries according to claim 1, characterized in that: The soaking mechanism comprises: two limit frames (21) fixedly connected to the battery (1); two electric push rods (22) respectively installed on the two limit frames (21); the push rod bottoms of the two electric push rods (22) are both installed with sleeves (23); a soaking plate (25) rotatably connected between the two sleeves (23), the two ends of the soaking plate (25) are respectively connected to the two limit frames (21) in a sliding manner, and the two sides of the soaking plate (25) are both provided with spline grooves (251); two rubber rings (24) respectively installed on the inner sides of the two sleeves (23) and respectively in close contact with the two spline grooves (251); and tooth columns (26) respectively fixed to the two ends of the soaking plate (25); The tooth plates (27) are respectively fixed to one side of the inner wall of the two limit frames (21).

3. The recovery and discharge device for power batteries according to claim 2, characterized in that: The scraping mechanism comprises: two sleeves (41), respectively fixed to the top of both sides of the battery (1) and respectively fixed to the top of the two limit frames (21), and a sliding groove is provided on the sides of the two sleeves (41) close to each other; two bidirectional screw rods (42) are respectively rotatably connected to the inside of the two sleeves (41); threaded blocks (43) are respectively connected to the two bidirectional screw rods (42) by threads; a scraper (44) is installed between the two threaded blocks (43), and the two sides of the scraper (44) are respectively connected to the sliding grooves of the two sleeves (41) by sliding; a motor (45) fixed to the support frame (32); and a transmission component (46) provided between the output shaft of the motor (45) and the two bidirectional screw rods (42).

4. The recovery and discharge device for power batteries according to claim 3, characterized in that: The transmission assembly 1 (46) consists of a double-grid toothed transmission wheel, two small toothed transmission wheels and two toothed belts. The double-grid toothed transmission wheel is fixed to the output shaft of the motor (45). The two small toothed transmission wheels are respectively fixed to one end of two bidirectional screw rods (42). One toothed belt is wound between one grid of the double-grid toothed transmission wheel and one of the small toothed transmission wheels, and the other toothed belt is wound between the other grid of the double-grid toothed transmission wheel and the other small toothed transmission wheel.

5. The recovery and discharge device for power batteries according to claim 3 is characterized in that include: The water tank (51) is fixedly connected to the outer frame (31); and the two fixing frames (52) are respectively fixedly connected to both sides of the inner bottom of the outer frame (31).

6. The recovery and discharge device for power batteries according to claim 5, characterized in that: The invention also includes a concentration increasing mechanism, which is arranged between the output shaft of the motor (45), the fixed frame (52) and the water tank (51), and the concentration increasing mechanism includes: two piston cylinders (61), respectively fixed on the two fixed frames (52); two piston rods (62), respectively slidably connected to the two piston cylinders (61); two sliders (63), respectively fixed to one end of the two piston rods (62); an eccentric slide rail (64) fixed on the output shaft of the motor (45), and the two sliders (63) are both slidably connected to the eccentric slide rail (64); and a spraying assembly arranged between the water tank (51) and the piston cylinder (61).

7. The recovery and discharge device for power batteries according to claim 6, characterized in that: The spray assembly comprises: two one-way valves (651), respectively connected to the upper parts of the two piston cylinders (61) away from each other; two one-way valves (652), respectively connected to the lower parts of the two piston cylinders (61) away from each other; two liquid inlet pipes (653), respectively installed on the two one-way valves (651), the other ends of the two liquid inlet pipes (653) are respectively connected to the two sides of the bottom of the water tank (51); two liquid outlet pipes (654), respectively installed on the two one-way valves (652), the other ends of the two liquid outlet pipes (654) are respectively connected to the inside of the discharge battery (1); and two spray barrels (655), respectively rotatably connected to the bottom ends of the two liquid outlet pipes (654).

8. The recovery and discharge device for power batteries according to claim 7, characterized in that: The side wall of the spray barrel (655) is provided with a plurality of spray holes.

9. The recovery and discharge device for power batteries according to claim 7, characterized in that: The invention also includes a swing mechanism, which is arranged on the discharge battery (1), the outer frame (31) and the piston rod (62), and the swing mechanism includes: two shells (71) fixedly connected to the discharge battery (1); two rotating shafts (72), which are respectively rotatably connected to the two shells (71) and the tops of which are rotatably connected to the bottom of the outer frame (31); two transmission components (73) arranged between the spray barrel (655) and the rotating shafts (72); two tooth columns (74) respectively fixedly connected to the tops of the two rotating shafts (72); and rack racks (75) respectively fixedly connected to the ends of the two piston rods (62) close to each other, and the two rack racks (75) are respectively engaged with the two tooth columns (74).

10. The recovery and discharge device for power batteries according to claim 9, characterized in that: The transmission component 2 (73) is composed of two pulleys and a flat belt. The two pulleys are respectively fixed to the spraying barrel (655) and the rotating shaft (72). A flat belt is wound between the two pulleys.

Images