Forklift counterweight feeding auxiliary device and control method

Abstract

The invention discloses a forklift balancing weight feeding auxiliary device and a control method. The forklift balancing weight feeding auxiliary device comprises a bearing rotating platform, a rotating gear is fixed to the lower surface of the bearing rotating platform, and a supporting platform is arranged below the rotating gear; a plurality of rollers are arranged on the lower surface of the bearing rotating platform in the circumferential direction; a weighing rotating platform is arranged above the bearing rotating platform, and a plurality of weighing units are arranged between the bearing rotating platform and the weighing rotating platform. The weighing unit obtains the actual weight of the balance weight, compares the actual weight with the theoretical weight of the balance weight type in a database and then sends a signal to the system, if the actual weight exceeds a threshold value, the system gives an alarm, and if the actual weight is smaller than the threshold value, the system sends a signal to the servo motor, and the servo motor drives the driving gear to rotate. The problem that the angle of a counterweight tool needs to be adjusted is solved, automatic rotation of the working platform is achieved, simple judgment of the weight type of the counterweight is increased, and mistake proofing of counterweight feeding is achieved.

Description

Technical Field

[0001] The invention relates to the field of forklift production equipment, and in particular to a forklift counterweight loading auxiliary device and a control method. Background Art

[0002] With the development of logistics, the demand for forklifts is increasing. Since the counterweight materials on the forklift assembly production line are currently transported by aerial logistics, they need to be centrally loaded outside the factory first, and then the final assembly line is supplied with precise materials on time through the aerial loop line. Therefore, it is urgent to improve the efficiency of counterweight loading. At present, the counterweight and pallet are shoveled to the loading point by a forklift, and after the counterweight and pallet are adjusted to the appropriate angle and position, the worker uses a hanging chain to hang the counterweight on the aerial loop line. In the existing technology, due to the design problems of the counterweight and tooling, the hanging chain needs to adjust the angle (the tooling needs to be rotated 90°) when hanging the counterweight to load the parts, and it is impossible to load the parts directly in one go. Using a forklift to adjust the position and angle of the counterweight and tooling is inefficient and even affects the rhythm of the final assembly line. Using a forklift to adjust the position and angle of the counterweight and tooling is complicated to operate, inconvenient, and has certain safety hazards. In addition, there is a lack of confirmation of the counterweight loading model, and there is a risk of loading the wrong parts.

[0003] Chinese patent publication number CN216375786U, publication date April 26, 2022, discloses a utility model named a forklift counterweight transfer rack. The application discloses a forklift counterweight transfer rack, including: a horizontal bracket; and a vertical bracket, the vertical bracket is vertically fixed on the top of the horizontal bracket, the vertical bracket includes two vertical channel steels symmetrically vertically arranged on the two side walls of the horizontal bracket, a rectangular tube fixed between the top side walls of the two vertical channel steels, and a hook plate vertically arranged on the two side walls of the top of the vertical channel steel for mounting the forklift counterweight The horizontal bracket includes two parallel horizontal channel steels, a longitudinal channel steel fixed on the top of the two horizontal channel steels, and two vertical channel steels symmetrically arranged vertically on the side walls of the horizontal channel steels. The vertical bracket also includes a rectangular tube 2 fixed on the side walls of the bottom ends of the two vertical channel steels, and the bottom of the rectangular tube 2 is arranged on the top of the horizontal channel steel. Although this application can utilize the structure of the counterweight itself and the action of gravity to achieve rapid stacking and transportation, it lacks a rotation angle adjustment mechanism for the counterweight upper part, and the parts cannot be loaded in place at one time, which is inefficient. In addition, there is a lack of confirmation of the counterweight upper part model, and there is a risk of loading the wrong parts. Summary of the invention

[0004] The present invention provides a forklift counterweight loading auxiliary device and a control method. By arranging a load-bearing rotating assembly and a weighing unit, the problem that the counterweight tooling needs to adjust the angle is solved, the automatic rotation of the working platform is realized, the simple discrimination of the counterweight model is increased, the error prevention of counterweight loading is realized, and the loading efficiency and the convenience of operation are improved.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: a forklift counterweight loading auxiliary device, including a load-bearing rotating platform, a slewing gear is fixed on the lower surface of the load-bearing rotating platform, and a supporting platform is arranged below the slewing gear; a plurality of rollers are arranged along the circumferential direction on the lower surface of the load-bearing rotating platform; a weighing rotating platform is arranged above the load-bearing rotating platform, and a plurality of weighing units are arranged between the load-bearing rotating platform and the weighing rotating platform. The automatic rotation of the working platform is realized, and the loading efficiency and the convenience of operation are improved.

[0006] Preferably, the load-bearing rotating platform and the weighing rotating platform are both discs, and the discs include an outer ring and a plurality of cross-shaped profiles arranged inside the outer ring.

[0007] Preferably, the weighing unit includes a weighing sensor and a platform fixing bracket, and the weighing units are symmetrical around the center of the weighing rotating platform. The disc design can ensure uniform distribution of the center of gravity during the rotation process, reduce the unstable factors caused by the center of gravity offset, and improve the safety and reliability of the operation. The symmetrical layout can ensure the accuracy and balance of weighing, reduce the weighing error caused by the asymmetric layout, and improve the weighing precision.

[0008] Preferably, the inner wall of the outer ring of the disk of the load-bearing rotating platform is provided with a plurality of T-shaped mounting brackets, one end of the T-shaped mounting bracket is fixed to the inner wall of the outer ring, and the other two ends are fixed to the side walls of the cross-shaped profile near the outer ring. The T-shaped mounting bracket provides a stable structural support and also enhances the stability and durability of the load-bearing rotating platform.

[0009] Preferably, the top of the weighing sensor is fixed to the lower surface of the weighing rotating platform, and the bottom is fixed to the upper surface of the platform fixing bracket, and the platform fixing bracket is fixed to the T-shaped mounting bracket. This ensures that the weighing sensor remains stable during rotation, reduces measurement errors caused by vibration or impact, and improves weighing accuracy.

[0010] Preferably, the slewing bearing is fixed on the upper surface of the support platform, and the slewing gear is arranged above the support platform. When the motor receives the signal, the servo motor rotates to drive the driving gear to rotate, and the gear meshing drives the load-bearing rotating platform to realize the rotation of the platform.

[0011] Preferably, a servo motor is provided below the support platform, and the servo motor is connected to a driving gear on the upper surface of the support platform. The precise control of the servo motor can ensure the precise positioning and rotation of the load-bearing rotating platform, and improve the flexibility and efficiency of the operation.

[0012] Preferably, the driving gear and the rotating gear are meshed, and the tooth tip circle radius of the driving gear is smaller than the tooth tip circle radius of the rotating gear. This design can ensure good meshing between the gears, reduce gear clearance, and improve the accuracy and stability of rotation.

[0013] Preferably, a proximity switch is arranged on the side wall of one end of the T-shaped mounting frame close to the outer ring, and is used to control the servo motor. The proximity switch can realize precise control, and a trigger signal is sent to the servo motor after reaching the rotation position, and the motor stops working, ensuring that the rotation angle reaches the set requirements and the theoretical and actual angles are consistent.

[0014] Preferably, a plurality of rollers are provided below the outer ring of the load-bearing rotating platform along the circumferential direction, the top ends of the rollers are in contact with the lower surface of the load-bearing rotating platform, and the bottom ends are mounted on the roller support assembly. The design of the rollers can reduce the friction between the load-bearing rotating platform and the ground, reduce energy consumption, and improve the flexibility and efficiency of rotation.

[0015] A control method adopts the above-mentioned forklift counterweight loading auxiliary device. The weighing unit obtains the actual weight of the counterweight, and after comparing it with the theoretical weight of the counterweight model in the database, sends a signal to the system. If it exceeds the threshold, the system alarms. If it is less than the threshold, the system sends a signal to the servo motor, and the servo motor drives the drive gear to rotate. The system is used to receive the signal of the weighing unit and then control the device. It solves the problem that the counterweight tooling needs to adjust the angle, realizes the automatic rotation of the working platform, adds a simple discrimination of the counterweight model, and realizes error prevention of counterweight loading by comparing the weight of the weighing unit, thereby improving loading efficiency and operation convenience.

[0016] Preferably, if the servo motor fails, the fault event will be reported to the system and stored in the database for maintenance. If the servo motor operates normally, the servo motor drives the drive gear to rotate, and the drive gear rotates to drive the load-bearing rotating platform to rotate. If the load-bearing rotating platform fails, the fault event will be reported to the system and stored in the database for maintenance. This ensures operational safety. If the load-bearing rotating platform fails, the system will report and store the fault event, and perform maintenance in a timely manner, avoiding possible safety risks and minimizing production interruptions caused by equipment failures. The automated fault detection and reporting system reduces dependence on professional technicians and reduces maintenance costs.

[0017] The beneficial effects of the present invention are as follows: the present invention solves the problem that the angle of the counterweight tooling needs to be adjusted by setting a load-bearing rotating assembly and a weighing unit, realizes the automatic rotation of the working platform, adds a simple identification of the counterweight model, realizes error prevention of counterweight loading, does not require workers to adjust, is convenient for employees to directly load parts, and improves loading efficiency and operational convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the weighing rotating platform and the weighing unit of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the load-bearing rotating assembly of the present invention.

[0021] Figure 4 It is a cross-sectional view of the present invention.

[0022] Figure 5 Flow chart of the control method of the present invention.

[0023] Figure markings: 1: weighing rotating platform; 2: weighing unit; 2.1: weighing sensor; 2.2: platform fixing bracket; 3: load-bearing rotating assembly; 3.1: T-shaped mounting bracket; 3.2: load-bearing rotating platform; 3.3: slewing bearing; 3.4: slewing gear; 4: proximity switch; 5: servo motor; 6: driving gear; 7: supporting platform; 8: supporting base; 9: roller; 10: roller supporting assembly; 11: outer ring; 12: profile. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1As shown, the present invention is a forklift balancing loading auxiliary device, which is designed to improve the efficiency and accuracy of forklift counterweight loading, while ensuring the convenience and safety of operation. The device includes key components such as a weighing rotating platform 1, a load-bearing rotating assembly 3, a weighing unit 2, a servo motor 5, and a proximity switch 4. The weighing rotating platform 1 is one of the core components of the present invention, which is designed in the shape of a disc, including an outer ring 11 and a plurality of cross-shaped profiles 12 installed in the outer ring 11. A circular plate with the same inner diameter as the outer ring 11 is installed on the disc of the weighing rotating platform 1. This circular plate is the working area for placing the counterweight and the counterweight tooling. The main function of the weighing rotating platform 1 is to drive the counterweight and the counterweight tooling to rotate, and to accurately weigh them to ensure the accuracy of loading. The load-bearing rotating assembly 3 is installed below the weighing rotating platform 1. Its structure also adopts a disc design. The load-bearing rotating assembly 3 includes a load-bearing rotating platform 3.2 and a slewing bearing 3.3. The center of the load-bearing rotating platform 3.2 and the slewing bearing 3.3 are on the same vertical line as the center of the weighing rotating platform 1, ensuring the concentricity and stability of the rotation. The diameter of the disc of the load-bearing rotating platform 3.2 is the same as the diameter of the disc of the weighing rotating platform 1. This design allows the two discs to keep in sync when rotating, reducing the error caused by the diameter difference. A number of weighing units 2 are provided between the load-bearing rotating assembly 3 and the weighing rotating platform 1. In this embodiment, four weighing units 2 are preferably used, which are symmetrically distributed around the center of the circle and are arranged on the profile 12 close to the outer ring 11. This symmetrical layout can ensure the accuracy and balance of weighing and reduce the weighing error caused by the asymmetric layout. The servo motor 5 is the power source for driving the load-bearing rotating assembly 3 to rotate. It is connected to the driving gear 6, which is meshed with the rotating gear 3.4 of the load-bearing rotating assembly 3 to drive the load-bearing rotating assembly 3 to rotate, thereby driving the weighing rotating platform 1 to rotate, and the weighing rotating platform 1 drives the counterweight and the balancing tooling to rotate. The precise control of the servo motor 5 can ensure the precise positioning and rotation of the load-bearing rotating assembly 3, and improve the flexibility and efficiency of the operation. The control signal of the servo motor 5 is provided by the system. According to the signal of the weighing unit 2 and the instruction of the proximity switch 4, the servo motor 5 can accurately control the rotation of the load-bearing rotating assembly 3. A roller 9 is provided below the outer ring 11 of the load-bearing rotating assembly 3, and the roller 9 is installed on the roller support assembly 10. The entire device is arranged in a cylindrical groove on the ground. This design makes the upper surface of the weighing rotating platform 1 and the ground on the same horizontal plane. This layout is not only convenient for operators to carry out the loading operation, but also can reduce the inconvenience of operation and safety hazards caused by the height difference.

[0026] like Figure 3As shown, the load-bearing rotating assembly 3 of the present invention is a key component of the forklift counterweight loading auxiliary device, which is composed of two core components: a load-bearing rotating platform 3.2 and a slewing bearing 3.3. The load-bearing rotating platform 3.2 is fixed to the slewing bearing 3.3 by bolt connection. This fixing method is simple and reliable, and is easy to install and maintain. The bolt connection provides sufficient tightening force to ensure that the load-bearing rotating platform 3.2 will not loosen or shift during the rotation process, thereby ensuring the stability and safety of the rotation. The load-bearing rotating platform 3.2 includes an outer ring 11 and a cross-shaped cross profile 12 arranged in the outer ring 11. These profiles 12 are installed perpendicular to each other to form a sturdy cross structure. In this embodiment, it is preferred that two profiles 12 are arranged horizontally and vertically to form a well-shaped cross structure. This structural design not only enhances the strength and rigidity of the load-bearing rotating platform 3.2, but also provides a stable support point for installing the weighing unit 2 and other components. Four T-shaped mounting brackets 3.1 are arranged in the four fan-shaped corners of the cross-shaped structure. These T-shaped mounting brackets 3.1 are arranged on the inner wall of the outer ring 11 of the load-bearing rotating assembly 3. One end of the T-shaped mounting bracket 3.1 is fixed on the inner wall of the outer ring 11, and the other two ends are fixed on the side walls of the cross profile 12 close to the outer ring 11. The design of the T-shaped mounting bracket 3.1 cleverly utilizes the space and provides a stable installation position for the platform fixing bracket 2.2 of the weighing unit 2. This layout not only improves the space utilization rate of the load-bearing rotating assembly 3, but also enhances the stability and durability of the entire device by dispersing the load. The T-shaped mounting bracket 3.1 is used to install the platform fixing bracket 2.2 of the weighing unit 2. These brackets are the fixed basis of the weighing sensor 2.1. The weighing sensor 2.1 is a key component for achieving accurate weighing, and its stability directly affects the accuracy of weighing. The T-shaped mounting bracket 3.1 provides a stable structural support to ensure that the weighing sensor 2.1 remains stable during the rotation process, reduce the measurement error caused by vibration or impact, and improve the accuracy of weighing. A proximity switch 4 is provided within the circumference of the load-bearing rotating platform 3.2. The proximity switch 4 is provided on the side wall of one end of the T-shaped mounting frame 3.1 close to the outer ring 11. The provision of the proximity switch 4 can achieve precise control. When the load-bearing rotating assembly 3 rotates to a predetermined position, the proximity switch 4 detects a signal and is triggered, and the servo motor 5 stops working immediately. This precise control ensures that the rotation angle meets the set requirements and ensures the consistency between the theoretical and actual angles, thereby improving the operating accuracy and reliability of the entire device. Several rollers 9 are provided along the circumferential direction below the outer ring 11 of the load-bearing rotating platform 3.2. In this embodiment, four rollers 9 are selected. The top of the roller 9 contacts the lower surface of the load-bearing rotating platform 3.2, giving the load-bearing rotating platform 3.2 an upward supporting force, thereby driving the rotating gear 3.4 to be suspended, ensuring the stability of the load-bearing rotating platform 3.2 during the rotation process, and the rotation of the roller 9 also helps the load-bearing rotating platform 3.2 to achieve a smoother rotation action.The rollers 9 and roller support assemblies 10 are symmetrically arranged around the center of the load-bearing rotating platform 3.2. This symmetrical layout helps to evenly disperse the weight of the load-bearing rotating platform 3.2 and reduce the eccentric torque caused by uneven weight distribution, thereby reducing vibration and noise during rotation. The bottom end of the roller 9 is mounted on the roller support assembly 10, which is made of high-strength materials to ensure durability and reliability when subjected to repeated loads and rotational stress. The design of the roller support assembly 10 allows the roller 9 to rotate freely while remaining in the correct position and alignment, which is essential for maintaining the smooth operation of the load-bearing rotating platform 3.2. The design of the roller 9 can reduce the friction between the load-bearing rotating assembly 3 and the ground, reduce energy consumption, and also reduce the heat generated by friction, thereby extending the service life of the load-bearing rotating assembly 3. Improve the flexibility and efficiency of rotation.

[0027] like Figure 3 and Figure 4As shown, a slewing gear 3.4 is sleeved on the slewing bearing 3.3, making the rotation of the entire device more flexible and accurate. A rectangular plate is fixed to the upper surface of the slewing gear 3.4 by bolts. This rectangular plate is a mounting plate, and its function is to provide a stable mounting platform for the load-bearing rotating platform 3.2. The mounting plate is fixedly mounted on the load-bearing rotating platform 3.2 by bolts. This fixing method not only ensures the stability of the load-bearing rotating platform 3.2, but also facilitates installation and maintenance. The lower surface of the slewing bearing 3.3 is fixedly mounted on a supporting platform 7, which is used to fix and support the slewing bearing 3.3 to ensure its stability during operation. The supporting platform 7 is a rectangular plate, the length of the supporting platform 7 is greater than the length of the mounting plate, and the width is equal to the width of the mounting plate. The inner diameter of the slewing gear 3.4 is slightly larger than the outer diameter of the slewing bearing 3.3. Such a design allows the slewing gear 3.4 to rotate freely on the slewing bearing 3.3. The slewing gear 3.4 can rotate around the slewing bearing 3.3. The slewing gear 3.4 is arranged above the support platform 7, and the lower surface is at a certain distance from the support platform 7. Such a layout provides sufficient space for the engagement of the driving gear 6 with the slewing gear 3.4, ensures smooth and accurate engagement between the gears, and avoids direct contact between the slewing gear 3.4 and the support platform 7, thereby reducing friction and wear caused by contact. Friction is one of the main causes of gear wear and energy loss. By reducing friction, the service life of the slewing gear 3.4 is extended, which not only reduces the direct cost of replacing the gear, but also reduces the indirect cost and downtime caused by maintenance and repair. The slewing gear 3.4 can be suspended above the support platform 7 by the roller supporting the load-bearing rotating platform 3.2. The load-bearing rotating platform 3.2 gives the slewing gear 3.4 an upward force through the mounting plate, so that the slewing gear 3.4 can be maintained at an appropriate height, perfectly meshing with the driving gear 6, while avoiding direct contact with the support platform 7. The height of the top of the roller 9 should be precisely controlled to ensure that the slewing gear 3.4 is perfectly meshed with the driving gear 6 while avoiding direct contact with the supporting platform 7, and to ensure that the height of the roller 9 can provide sufficient support without hindering the normal operation of the slewing gear 3.4. The tooth groove of the slewing gear 3.4 is approximately rectangular and is used to mesh with the driving gear 6. The servo motor 5 is connected to the driving gear 6, and the tooth top circle radius of the driving gear 6 is smaller than the tooth top circle radius of the slewing gear 3.4. The servo motor 5 can directly control the rotation of the driving gear 6. When the servo motor 5 receives the signal, the servo motor 5 rotates to drive the driving gear 6 to rotate, and the gear meshing drives the slewing gear 3.4 to rotate. This direct drive method improves the response speed and control accuracy of the rotation. The slewing gear 3.4 is fixedly connected to the load-bearing rotating platform 3.2 through the mounting plate. The rotation of the load-bearing rotating platform 3.2 drives the weighing rotating platform 1 to rotate, realizing the rotation of the platform. The rotation of the weighing rotating platform 1 is synchronized with the rotation of the load-bearing rotating assembly 3, thereby improving the operating efficiency of the entire device.When the load-bearing rotating assembly 3 rotates to the predetermined position, the proximity switch 4 detects the signal and is triggered, and the servo motor 5 stops working immediately. This precise control ensures that the load-bearing rotating assembly 3 can accurately stop at the predetermined position, and realizes precise control of the counterweight and the counterweight tooling to rotate the set angle (90 degrees). The precise control of the servo motor 5 can ensure the precise positioning and rotation of the load-bearing rotating assembly 3, and improve the flexibility and efficiency of the operation.

[0028] Four support bases 8 are arranged below the support platform 7. The support base 8 is composed of a rectangular plate and a triangular plate arranged at the bottom of the rectangular plate. The triangular plate is perpendicular to the ground and the support base 8 and is used to provide support for the support base 8. The four support bases 8 are respectively arranged below the four corners of the support platform 7 and are symmetrical around the center of the support platform 7. The servo motor 5 is arranged below the support platform 7 and is connected to the driving gear 6 arranged on the upper surface of the support platform 7. It is used to drive the driving gear 6 to rotate.

[0029] like Figure 2 As shown, the weighing rotating platform 1 is located above the load-bearing rotating assembly 3, and its structure also adopts a disc design, including an outer ring 11 and a plurality of cross-shaped profiles 12 arranged in the outer ring 11. These profiles 12 are installed perpendicular to each other to form a solid cross-shaped cross structure. In this embodiment, preferably three profiles 12 are arranged horizontally and vertically. This structural design not only enhances the stability of the platform, but also facilitates installation and maintenance. A circular plate with the same diameter is installed on the disc to support and drive the counterweight and counterweight to rotate.

[0030] like Figure 2 As shown, the weighing unit 2 is arranged between the weighing rotating platform 1 and the load-bearing rotating assembly 3, and the weighing unit 2 includes a weighing sensor 2.1 and a platform fixing bracket 2.2. Several weighing units 2 are symmetrically arranged around the center of the weighing rotating platform 1. The symmetrical layout can ensure the accuracy and balance of weighing, reduce the weighing error caused by the asymmetric layout, and improve the weighing accuracy. In this embodiment, four weighing units 2 are preferably arranged on the profile 12 close to the outer ring 11. The top of the weighing sensor 2.1 is fixed to the lower surface of the weighing rotating platform 1, and the bottom end is fixed to the upper surface of the platform fixing bracket 2.2. The frequency platform fixing bracket is a rectangular block, and the platform fixing bracket 2.2 is flatly fixed on the upper surface of one end of the T-shaped mounting bracket 3.1 close to the outer ring 11. This fixing method can ensure that the weighing sensor 2.1 remains stable during rotation, reduce the measurement error caused by vibration or impact, and improve the accuracy of weighing. The added weighing sensor 2.1 compares the theoretical weight provided by MES with the actual weight of the counterweight. When the weight exceeds the set upper and lower limits, the system alarms and prompts that the wrong counterweight has been loaded. By comparing the weights through weighing unit 2, the model of the counterweight can be automatically identified, thereby preventing errors in loading the counterweight. This function reduces manual identification errors and improves the accuracy of loading.

[0031] like Figure 5 As shown, the system is the brain of the forklift counterweight loading auxiliary device of the present invention. It consists of an MES (manufacturing execution system) system and a PLC (programmable logic controller) system. The close combination of these two systems ensures the efficient and accurate operation of the entire device. The MES system is responsible for collecting and processing all production-related data, including the theoretical weight and model information of the counterweight. These data are crucial to ensure the accuracy of the loading process. The PLC system controls the precise movement of the servo motor according to the data provided by the MES system. This data-driven control method improves the flexibility and response speed of the operation. The MES system provides data to cooperate with the PLC to control the rotation of the servo motor 5, wherein the servo motor 5 drives the load-bearing rotating component 3 to rotate through gear meshing, thereby realizing the automatic rotation of the entire working rotating platform. The operator uses a forklift to shovel the counterweight and the tooling onto the weighing rotating platform 1, and this action triggers the weighing sensor 2.1. The weighing sensor 2.1 measures the actual weight of the counterweight in real time and transmits the data to the MES system. The MES system then compares the transmitted weight data with the preset theoretical weight to determine whether the model of the counterweight is correct. When the set upper and lower limits are exceeded, that is, the threshold is exceeded, the system alarms, and prompts that the wrong counterweight is installed. Once the MES system confirms that the model of the counterweight is correct, the signal is immediately transmitted to the servo motor 5. If the servo motor 5 fails, the fault event is reported to the system and stored in the database, and then the machine is shut down for inspection. If the servo motor 5 operates normally, the servo motor 5 rotates according to the received signal, driving the load-bearing rotating platform 3.2 to rotate to the set angle. If the load-bearing rotating platform 3.2 fails, the fault event is reported to the system and stored in the database. After the counterweight and the counterweight tooling are rotated to the set angle, the operator then uses the hanging chain to lift the counterweight to the aerial loop line. After completion, the signal is triggered, and the servo motor 5 starts to rotate back to the initial position again. The forklift forks the tooling away from the rotating platform to complete a single process.

[0032] Working process.

[0033] 1. Forklift loading.

[0034] The operator uses a forklift to shovel the counterweight and the tooling onto the weighing rotating platform 1, and this action triggers the weighing sensor 2.1.

[0035] 2. Model identification.

[0036] The weighing sensor 2.1 determines whether the model of the counterweight is correct by comparing the weight data transmitted by the MES. If the actual weight exceeds the set upper or lower limit, the system will issue an alarm to prompt the operator to put on the wrong counterweight.

[0037] 3. Signal transmission.

[0038] If the model is correctly determined, when the system receives the start signal, the signal is transmitted to the servo motor 5, the servo motor 5 is started immediately, and the servo motor 5 rotates.

[0039] 4. Platform rotation.

[0040] The rotation of the servo motor 5 drives the rotary gear 3.4 to rotate through gear meshing, thereby driving the load-bearing rotating platform 3.2. The load-bearing rotating platform 3.2 drives the weighing rotating platform 1 to rotate, thereby realizing the automatic rotation of the entire working rotating platform.

[0041] 5. Position control.

[0042] When the load-bearing rotating platform 3.2 rotates to a predetermined position, the proximity switch 4 triggers a signal to the servo motor 5. The servo motor 5 stops working after receiving the signal, ensuring that the rotation angle of the platform accurately reaches the set requirements, so that the theoretical and actual rotation angles are consistent.

[0043] 6. Move the counterweight away.

[0044] After rotating to the set angle, the worker uses the hanging chain to lift the counterweight to the aerial loop line. The forklift forks the workpiece away from the weighing rotating platform 1, completing the single loading process.

[0045] 7. The platform returns to its original position.

[0046] After the lifting action is completed, a trigger signal is sent and the servo motor 5 is started again. The servo motor 5 drives the weighing rotating platform 1 to rotate back to the initial position to prepare for the next cycle.

[0047] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, the obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A forklift counterweight loading auxiliary device, characterized in that: It includes a load-bearing rotating platform, a rotating gear is fixed on the lower surface of the load-bearing rotating platform, and a supporting platform is arranged below the rotating gear; A plurality of rollers are arranged along the circumferential direction on the lower surface of the load-bearing rotating platform; A weighing rotating platform is arranged above the load-bearing rotating platform, and a plurality of weighing units are arranged between the load-bearing rotating platform and the weighing rotating platform.

2. A forklift counterweight loading auxiliary device according to claim 1, characterized in that: A slewing bearing is fixed on the upper surface of the supporting platform, a slewing gear sleeve is arranged on the slewing bearing, and a supporting base is arranged under the supporting platform.

3. The forklift counterweight loading auxiliary device according to claim 1, characterized in that: The load-bearing rotating platform and the weighing rotating platform are both discs, which include an outer ring and a plurality of cross-shaped profiles arranged inside the outer ring. The weighing unit includes a weighing sensor and a platform fixing bracket, and the plurality of weighing units are symmetrical around the center of the weighing rotating platform.

4. The forklift counterweight loading auxiliary device according to claim 3, characterized in that: The inner wall of the outer ring of the disk of the load-bearing rotating platform is provided with a plurality of T-shaped mounting frames, one end of the T-shaped mounting frame is fixed on the inner wall of the outer ring, and the other two ends are fixed on the side walls of the cross-shaped profile close to the outer ring.

5. The forklift counterweight loading auxiliary device according to claim 3, characterized in that: The top end of the weighing sensor is fixed on the lower surface of the weighing rotating platform, and the bottom end is fixed on the upper surface of the platform fixing bracket, and the platform fixing bracket is fixed on the T-shaped mounting bracket.

6. A forklift counterweight loading auxiliary device according to claim 1 or 2, characterized in that: A servo motor is arranged below the supporting platform, the servo motor is connected with a driving gear above the supporting platform, and the driving gear is meshed with a rotating gear.

7. The forklift counterweight loading auxiliary device according to claim 6, characterized in that: A proximity switch is arranged on the side wall of one end of the T-shaped mounting frame close to the outer ring, and is used for controlling the servo motor.

8. The forklift counterweight loading auxiliary device according to claim 3, characterized in that: A plurality of rollers are arranged along the circumferential direction below the outer ring of the load-bearing rotating platform, the top ends of the rollers are in contact with the lower surface of the load-bearing rotating platform, and the bottom ends are installed on the roller support assembly.

9. A control method, characterized in that: A forklift counterweight loading auxiliary device as described in any one of claims 1 to 9 is adopted, and the weighing unit obtains the actual weight of the counterweight, and after comparing it with the theoretical weight of the counterweight model in the database, sends a signal to the system. If it exceeds the threshold, the system alarms; if it is less than the threshold, the system sends a signal to the servo motor.

10. A control method according to claim 9, characterized in that: If the servo motor fails, the fault event will be reported to the system and stored in the database for inspection and maintenance. If the servo motor operates normally, the servo motor drives the drive gear to rotate, and the drive gear rotation drives the load-bearing rotating platform to rotate. If the load-bearing rotating platform fails, the fault event will be reported to the system and stored in the database for inspection and maintenance.

Images