Automatic loading and unloading auxiliary device for power unit

Abstract

The utility model relates to the technical field of loading and unloading devices, and particularly discloses a power unit automatic loading and unloading auxiliary device which comprises a moving device, a lifting assembly, a posture adjusting platform, a tray and a fixing mechanism. The lifting assembly is arranged on the moving device, the posture adjusting platform is installed on the moving device, the tray abuts against the posture adjusting platform and is used for bearing the power unit, and the fixing mechanisms are arranged on the two sides of the bottom of the electric drive chassis respectively and used for being connected with the tray. The device is used for assembly, disassembly, replacement and maintenance of a large-scale electric drive chassis power unit; the loading and unloading efficiency is improved, manual operation errors are reduced, dependence on experience of operators is reduced, and meanwhile operation safety and reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loading and unloading device technical field, specifically, it is mainly related to a power unit automatic loading and unloading auxiliary device. BACKGROUND

[0002] With the rapid development of new energy automobile technology, the large electric drive chassis power unit increases the volume and weight, and puts forward higher requirements to the vehicle layout and installation precision. The traditional loading and unloading mode relying on large equipment such as overhead crane, forklift and general simple tool is not only complex in operation, long in time consumption, but also difficult to control the precision, and is easy to cause bumping and extrusion, causing damage to the vehicle. In addition, this mode relying on manual operation has strong experience dependence, and is difficult to meet the current vehicle overall digitalization and automation level demand. Therefore, developing an auxiliary device capable of automatically loading and unloading power unit has important significance for improving loading and unloading efficiency, reducing human error and ensuring operation safety. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the utility model provides a power unit automatic loading and unloading auxiliary device, which is used for assembling, disassembling, replacing and repairing the large electric drive chassis power unit; aims at improving the loading and unloading efficiency, reducing the human operation error, reducing the dependence on the experience of the operator, and improving the safety and reliability of the operation. It is realized through the following technical schemes:

[0004] A power unit automatic loading and unloading auxiliary device, comprising: a moving device, a lifting assembly, a posture adjusting platform, a tray and a fixing mechanism; the lifting assembly is arranged on the moving device, the posture adjusting platform is installed on the moving device, the tray is in abutment with the posture adjusting platform and is used for supporting the power unit, and the fixing mechanism is arranged on both sides of the bottom of the electric drive chassis and is used for being connected with the tray.

[0005] Preferably, the fixing mechanism comprises a locking wheel assembly and a locking assembly, and the locking assembly is arranged on both sides of the locking wheel assembly.

[0006] Preferably, the locking assembly comprises a fixing seat, a seat body, a lock disc, a lock block, a guide rod, a spring and a stop block, the fixing seat is fixedly connected with the electric drive chassis, the seat body is arranged below the fixing seat, the lock disc is hinged with the seat body, the lock block is installed below the fixing seat, the guide rod is fixedly connected with the lock block, the stop block is also fixedly connected with the lock block, and the spring is sleeved on the guide rod.

[0007] Preferably, the guide rod is provided with a protruding portion, and the spring is arranged between the stop block and the protruding portion.

[0008] Preferably, the locking wheel assembly includes an upper push rod, a left push rod, a right push rod, a ratchet, a pawl, a rocker arm, and a mounting plate; the upper push rod passes between the left and right push rods, the mounting plate is provided with a rotating shaft, the left and right push rods are mounted on the mounting plate through the rotating shaft, the left and right push rods are hinged, the ratchet is inserted through the rotating shaft and fixedly connected to the right push rod, the pawl abuts against the ratchet, the pawl is hinged to the mounting plate, and the rocker arm is disposed on the mounting plate and fixedly connected to the pawl.

[0009] Preferably, the lifting assembly includes a motor, a reducer, a lead screw, and a telescopic rod. One end of the reducer is connected to the output shaft of the motor, and the other end is connected to the lead screw. The telescopic rod is mounted on the lead screw.

[0010] Preferably, the attitude adjustment platform includes a lifting platform, a slide rail, a slider, and a support plate. The lifting platform is provided with a support rod and is connected to the moving device through the support rod. The slide rail is installed on the lifting platform, and the slider is installed at the bottom of the support plate. The support plate is slidably connected to the slide rail through the slider.

[0011] Preferably, the tray is provided with a plurality of positioning pins, which are evenly arranged on the outer top of the tray for cooperating with the locking assembly.

[0012] Preferably, the base body has an auxiliary groove, the diameter of which is larger than the diameter of the positioning pin.

[0013] Preferably, the mobile device is equipped with a plurality of industrial cameras, which are evenly arranged on the mobile device.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) During assembly, the mobile device is precisely positioned and moved to the bottom of the electric drive chassis using an industrial camera. The attitude adjustment platform adjusts the tray to a suitable horizontal direction and height, so that the positioning pin on the tray engages with the locking disc. The starter motor drives the telescopic rod to move along the Z-axis, and the telescopic rod abuts against the upper push rod, thereby causing the left and right push rods to rotate along the rotation axis, driving the guide rod to move laterally. This causes the locking block fixed to the guide rod to abut against the locking disc, and the power unit is fixed to the bottom of the electric drive chassis along with the tray, thus realizing the assembly function. During disassembly, the mobile device is precisely positioned and moved to the bottom of the electric drive chassis using an industrial camera. The attitude adjustment platform is adjusted to a suitable horizontal direction and height. By rotating the rocker arm, the ratchet and pawl are separated. Through the spring's rebound force, the guide rod moves laterally, and the locking disc and locking block separate. After separation, the locking disc can rotate freely, thus unlocking the locking disc and completing the disassembly of the power unit. The above operations improve loading and unloading efficiency through automation, reduce human error, reduce reliance on operator experience, and improve the safety and reliability of the operation.

[0016] (2) This technical solution uses the telescopic rod of the lifting component to drive the left push rod and the right push rod to change from rotational motion to linear motion, thereby abutting the lock block and the lock disc. At the same time, a one-way ratchet and pawl are set to lock the lock disc and lock the positioning pin, thereby realizing the installation and locking of the power unit and greatly improving the installation efficiency.

[0017] (3) This technical solution utilizes the rebound force after the spring is stretched, and in conjunction with the rotation of the rocker arm, the ratchet and pawl are separated. After separation, the lock disc and the seat can rotate relative to each other, thus completing the quick unlocking and disassembly of the power unit. It has the characteristics of simple operation. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0020] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0021] Figure 3 for Figure 2 Exploded view;

[0022] Figure 4 This is a schematic diagram of the lifting assembly of this utility model;

[0023] Figure 5 This is a partial sectional view of the present invention;

[0024] Figure 6 This is a schematic diagram of the fixing mechanism of this utility model;

[0025] Figure 7 for Figure 6 Another perspective illustration.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Electric drive chassis; 200. Power unit;

[0028] 1. Mobile devices; 11. Industrial cameras;

[0029] 2. Lifting assembly; 21. Motor; 22. Reducer; 23. Lead screw; 24. Telescopic rod;

[0030] 3. Attitude adjustment platform; 31. Lifting platform; 311. Support rod; 32. Slide rail; 33. Slider; 34. Support plate; 341. Limit block;

[0031] 4. Pallet; 41. Locating pin;

[0032] 5. Fixing mechanism; 51. Locking wheel assembly; 511. Upper push rod; 5111. Clamping plate; 512. Left push rod; 5121. First elongated hole; 513. Right push rod; 5131. Second elongated hole; 514. Ratchet; 515. Pawl; 516. Rocker arm; 517. Mounting plate; 5171. Rotating shaft; 52. Locking assembly; 521. Fixing seat; 522. Seat body; 5221. Auxiliary groove; 523. Locking disc; 5231. Positioning groove; 524. Locking block; 525. Guide rod; 5252. Protrusion; 526. Spring; 527. Stop block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Reference Figures 1-3 This embodiment relates to an automatic loading and unloading auxiliary device for power units, used for the assembly, disassembly, replacement, and maintenance of power units 200 on a large electric drive chassis 100. Specifically, the automatic loading and unloading auxiliary device for power units of this application includes a moving device 1, a lifting assembly 2, a posture adjustment platform 3, a tray 4, and a fixing mechanism 5. The lifting assembly 2 is disposed on the moving device 1, the posture adjustment platform 3 is mounted on the moving device 1, the tray 4 abuts against the posture adjustment platform 3 to support the power unit 200, and the fixing mechanism is disposed on both sides of the bottom of the electric drive chassis 100 to connect with the tray 4.

[0037] In some implementations, such as Figures 1-2 As shown, the fixing mechanism 5 includes a locking wheel assembly 51 and a locking assembly 52, with the locking assembly 52 respectively disposed on both sides of the locking wheel assembly 51. It should be noted that during assembly, the power unit automatic loading and unloading auxiliary device of this application moves the power unit 200 from the pallet 4 on the moving device 1 to the bottom of the electric drive chassis 100. The power unit 200 on the pallet 4 is adjusted to a suitable position by the attitude adjustment platform 3, and the pallet 4 is locked to the fixing mechanism 5 by the lifting assembly 2, thereby installing the power unit 200 at the bottom of the electric drive chassis 100. During disassembly, the moving device... 1. Move to a suitable position at the bottom of the electric drive chassis 100, unlock internally through the fixing mechanism 5, so that the tray 4 is detached from the fixing mechanism 5, and the attitude adjustment platform 3 on the moving device 1 abuts against the tray 4 from the bottom of the electric drive chassis 100, thereby completing the disassembly of the power unit 200; the fixing mechanism 5 is always fixed on the electric drive chassis 100 during the above device assembly or disassembly, and the power unit 200 is always assembled on the tray 4; the above operation improves loading and unloading efficiency through automation, reduces human operation error, reduces reliance on operator experience, and at the same time improves the safety and reliability of the operation.

[0038] In some implementations, such as Figure 3As shown, the tray 4 is provided with a plurality of positioning pins 41, preferably four, the positioning pins 41 having a cylindrical structure, and the positioning pins 41 being evenly arranged on the outer side of the top of the tray 4 for cooperating with the locking assembly 52.

[0039] In some implementations, such as Figures 6-7 As shown, the locking wheel assembly 51 includes an upper push rod 511, a left push rod 512, a right push rod 513, a ratchet 514, a pawl 515, a rocker arm 516, and a mounting plate 517. The upper push rod 511 passes between the left push rod 512 and the right push rod 513. The mounting plate 517 is provided with a rotating shaft 5171. The left push rod 512 and the right push rod 513 are mounted on the mounting plate 517 via the rotating shaft 5171. The left push rod 512 and the right push rod 513 are hinged together. The ratchet 514 passes through the rotating shaft 5171 and is fixedly connected to the right push rod 513. The pawl 515 abuts against the ratchet 514 and is hinged to the mounting plate 517. The rocker arm 516 is disposed on the mounting plate 517 and is fixedly connected to the pawl 515.

[0040] Specifically, the left push rod 512 has a first elongated hole 5121, and the right push rod 513 has a second elongated hole 5131. The upper push rod 511 passes through the first elongated hole 5121 and the second elongated hole 5131. More specifically, a retaining plate 5111 is provided in the middle of the upper push rod 511. The width of the retaining plate 5111 is greater than the width of the first elongated hole 5121 and the second elongated hole 5131. During assembly, the upper push rod 511 is lifted upward along the Z-axis by the lifting assembly 2, causing the left push rod 512 and the right push rod 513 to rotate along the rotation axis 5171, thereby driving the ratchet 514 to rotate counterclockwise. At this time, the pawl 515 slides on the back of the teeth of the ratchet 514, and the ratchet 514 moves in one direction.

[0041] In some implementations, such as Figures 4-5 As shown, the locking assembly 52 includes a fixed base 521, a base body 522, a locking disc 523, a locking block 524, a guide rod 525, a spring 526, and a stop block 527. The fixed base 521 is fixedly connected to the electric drive chassis 100. The base body 522 is located below the fixed base 521. The locking disc 523 is hinged to the base body 522. The locking block 524 is installed below the fixed base 521. The guide rod 525 is fixedly connected to the locking block 524. The stop block 527 is also fixedly connected to the locking block 524. The spring 526 is sleeved on the guide rod 525. The guide rod 525 is provided with a protrusion 5252. The spring 526 is located between the stop block 527 and the protrusion 5252.

[0042] Specifically, the locking disc 523 has an irregular shape and is provided with a positioning groove 5231. The positioning groove 5231 is an open circular groove. When the moving device 1 supports the tray 4 on which the power unit 200 is installed to the bottom of the electric drive chassis 100, the attitude adjustment platform 3 drives the tray 4 to move continuously along the Z-axis, so that the positioning pin 41 of the tray 4 cooperates with the positioning groove 5231. The base 522 is provided with an auxiliary groove 5221. The auxiliary groove 5221 is an open circular groove, and the diameter of the auxiliary groove 5221 is larger than the diameter of the positioning pin 41, so that the positioning pin 41 can enter the auxiliary groove 5221. During assembly, when the positioning pin 41 reaches the auxiliary groove 5221 and is concentric with the auxiliary groove 5221, the adjustment platform stops moving in the Z-axis direction, and the lifting component 2 lifts the upper push rod 511 along the Z-axis direction.

[0043] More specifically, the guide rod 525 is inserted through the upper ends of the left push rod 512 and the right push rod 513 respectively. When the left push rod 512 and the right push rod 513 rotate along the rotation axis 5171, they drive the guide rod 525 to move laterally. At this time, the locking block 524, which is fixedly connected to the guide rod 525, also moves laterally, so that the locking block 524 abuts against the locking disc 523, causing the locking disc 523 to lock the positioning pin 41, thereby realizing the installation and locking of the power unit 200; the guide rod 525 is inserted through the upper ends of the left push rod 512 and the right push rod 513 respectively. The spring 526 of the 25 will be compressed. Since the pawl 515 is inserted into the tooth groove of the ratchet 514, the spring 526 cannot rebound. During the disassembly of the power unit 200, the rocker arm 516 is rotated to separate the ratchet 514 from the pawl 515. Through the rebound force of the spring 526, the locking block 524 is separated from the locking disc 523. After separation, the locking disc 523 and the seat 522 can rotate relative to each other, thereby unlocking the locking disc 523 and completing the disassembly of the power unit 200.

[0044] In some implementations, such as Figures 2-3 As shown, the attitude adjustment platform 3 includes a lifting platform 31, a slide rail 32, a slider 33, and a support plate 34. The lifting platform 31 is provided with a support rod 311. The lifting platform 31 is connected to the moving device 1 through the support rod 311. The slide rail 32 is installed on the lifting platform 31. The slider 33 is installed at the bottom of the support plate 34. The support plate 34 is slidably connected to the slide rail 32 through the slider 33.

[0045] Specifically, the lifting platform 31 is a fixed scissor lift platform 31, used for lifting the power unit 200. It extends and retracts through the support rod 311, and can detect the movement height of the lifting support rod 311 and the platform position in real time. The lifting platform 31 is directly obtained from the prior art. Its structure is not specifically described in this application, but that does not mean it cannot be implemented.

[0046] In some implementations, such as Figure 3As shown, the support plate 34 is provided with a plurality of limiting blocks 341, which are evenly arranged around the support plate 34, so that the tray 4 can be embedded in the support plate 34 to achieve the positioning of the tray 4 and prevent the tray 4 from shaking; further, by setting the slide rail 32, the horizontal movement of the attitude adjustment platform 3 is realized.

[0047] In some implementations, such as Figure 4 As shown, the lifting assembly 2 includes a motor 21, a reducer 22, a lead screw 23, and a telescopic rod 24. One end of the reducer 22 is connected to the output shaft of the motor 21, and the other end is connected to the lead screw 23. The telescopic rod 24 is mounted on the lead screw 23.

[0048] Specifically, the lifting assembly 2 is provided in two parts, corresponding to the positions of the upper push rod 511 respectively; the reducer 22 is used to reduce the high-speed rotation of the motor 21 to obtain the low-speed rotation required by the lead screw 23, while increasing the torque; the lead screw 23 is connected to the reducer 22 to convert the rotational motion into linear motion, and the telescopic rod 24 is installed on the nut of the lead screw 23. The rotation of the lead screw 23 causes the telescopic rod 24 to move along the axis of the lead screw 23, thereby realizing the lifting and lowering of the telescopic rod 24. The telescopic rod 24 is used to lift the upper push rod 511 and cooperates with the fixing mechanism 5 to realize the locking function.

[0049] In some implementations, such as Figure 2 As shown, the mobile device 1 is an AGV trolley. The mobile device 1 is equipped with several industrial cameras 11, preferably four. The industrial cameras 11 are evenly arranged on the mobile device 1. By adsorbing magnetic LED target points (not shown) on the electric drive chassis 100, the industrial cameras 11 capture the target points, so that the power unit 200 can be accurately positioned at the bottom of the electric drive chassis 100, thereby realizing the assembly and disassembly of the power unit 200.

[0050] The implementation principle of this utility model is as follows:

[0051] During assembly, the mobile device 1 is precisely positioned and moved to the bottom of the electric drive chassis 100 by the industrial camera 11. The attitude adjustment platform 3 adjusts the tray 4 to a suitable horizontal direction and height, so that the positioning pin 41 on the tray 4 engages with the locking disc 523. The start motor 21 drives the telescopic rod 24 to move along the Z-axis. The telescopic rod 24 abuts against the upper push rod 511, thereby causing the left push rod 512 and the right push rod 513 to rotate along the rotation axis 5171, driving the guide rod 525 to move laterally, so that the locking block 524 fixed to the guide rod 525 abuts against the locking disc 523. Next, the power unit 200 is fixed to the bottom of the electric drive chassis 100 along with the tray 4, realizing the assembly function; during disassembly, the moving device 1 is precisely positioned and moved to the bottom of the electric drive chassis 100 by the industrial camera 11, the posture adjustment platform 3 is adjusted to a suitable horizontal direction and height, and by rotating the rocker arm 516, the ratchet 514 and the pawl 515 are separated. Through the rebound force of the spring 526, the guide rod 525 moves laterally, and the locking disc 523 and the locking block 524 are separated. After separation, the locking disc 523 can rotate freely, and the locking disc 523 can be unlocked, thus completing the disassembly of the power unit 200.

[0052] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A power unit automatic loading and unloading auxiliary device for the assembly, disassembly, replacement and maintenance of large electric drive chassis power units, characterized in that, Include: Mobile device; Lifting assembly, the lifting assembly is arranged on the mobile device; Posture adjustment platform, the posture adjustment platform is installed on the mobile device; Tray, the tray is in abutment with the posture adjustment platform, for supporting power unit; Fixing mechanism, the fixing mechanism is arranged on both sides of the electric drive chassis bottom respectively, for being connected with the tray.

2. The power unit self-loading and unloading assist device according to claim 1, characterized by, The fixing mechanism comprises a locking wheel assembly and a locking assembly, and the locking assembly is arranged on both sides of the locking wheel assembly.

3. The power unit self-loading and unloading assist device according to claim 2, characterized by, The locking assembly comprises a fixing seat, a seat body, a lock disc, a lock block, a guide rod, a spring and a stop block, the fixing seat is fixedly connected with the electric drive chassis, the seat body is arranged below the fixing seat, the lock disc is hinged with the seat body, the lock block is installed below the fixing seat, the guide rod is fixedly connected with the lock block, the stop block is also fixedly connected with the lock block, and the spring is sleeved on the guide rod.

4. The power unit self-loading and unloading assist device according to claim 3, characterized by, The guide rod is provided with a protruding portion, and the spring is arranged between the stop block and the protruding portion.

5. The power unit self-loading and unloading assist device according to claim 2, characterized by, The locking wheel assembly comprises an upper push rod, a left push rod, a right push rod, a ratchet wheel, a pawl, a rocker and a mounting plate; the upper push rod is arranged between the left push rod and the right push rod, the mounting plate is provided with a rotating shaft, the left push rod and the right push rod are installed on the mounting plate through the rotating shaft, the left push rod and the right push rod are hinged, the ratchet wheel is inserted on the rotating shaft and fixedly connected with the right push rod, the pawl is in abutment with the ratchet wheel, the pawl is hinged with the mounting plate, and the rocker is arranged on the mounting plate and fixedly connected with the pawl.

6. The power unit self-loading and unloading assist device according to claim 1, characterized by, The lifting assembly comprises a motor, a speed reducer, a lead screw and a telescopic rod, one end of the speed reducer is connected with the output shaft of the motor, the other end is connected with the lead screw, and the telescopic rod is arranged on the lead screw.

7. The power unit self-loading and unloading assist device according to claim 1, characterized by, The posture adjustment platform comprises a lifting platform, a sliding rail, a sliding block and a support plate, the lifting platform is provided with a support rod, the lifting platform is connected with the mobile device through the support rod, the sliding rail is installed on the lifting platform, the sliding block is installed at the bottom of the support plate, and the support plate is slidably connected with the sliding rail through the sliding block.

8. The power unit self-loading and unloading assist device according to claim 2, characterized by, The tray is provided with a plurality of positioning pins, the positioning pins are uniformly arranged on the outer side of the top of the tray, and are matched with the locking assembly.

9. The power unit automatic handling aid of any one of claims 1-8, wherein, The mobile device is provided with a plurality of industrial cameras, and the industrial cameras are uniformly arranged on the mobile device.

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