One-key leveling control system for bucket of electric loader
By designing a one-click bucket laying control system in an electric loader, the entire vehicle controller and solenoid valve are used to realize the automatic bucket laying, which solves the problems of cumbersome operation and unstable accuracy of traditional loaders, and improves the Work efficiency and accuracy.
Patent Information
- Application Number
- CN202421083479.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The bucket laying operation of traditional loaders is cumbersome and relies on manual operation of hydraulic handles. It is not suitable for electric loaders, resulting in unstable laying accuracy and low working efficiency.
A one-key leveling control system for electric loader buckets is designed, using a vehicle controller, a leveling proximity switch, a one-key leveling button, a bucket solenoid valve and a bucket solenoid valve. The bucket is detected by a leveling proximity switch. The status is automatically placed by the one-click flat button.
The bucket laying operation is simplified, the working efficiency and accuracy are improved, and the bucket is automatically laid, reducing the complexity and error of the driver's manual operation.
Smart Images
Figure CN222252301U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of loaders, and in particular relates to a one-button leveling control system for an electric loader bucket. Background Art
[0002] With the continuous development of electrification and intelligent technology, electric loaders are becoming more and more popular in the market due to their advantages such as high efficiency, environmental protection and energy saving. However, there are still some challenges in the bucket control of electric loaders, and technological innovation is needed to improve their operating performance and work efficiency.
[0003] The bucket of a traditional loader is leveled by closing the solenoid valve under the hydraulic handle, causing the valve core to open the bucket. When the bucket reaches the leveled position, the leveling proximity switch installed on the bucket cylinder senses the leveling position signal, cuts off the power supply of the solenoid coil under the handle, returns the handle to the center position, and cuts off the pilot pressure to level the bucket. The hydraulic handle requires the driver to manually operate the handle to put the bucket in the state of retracting the bucket, and the solenoid valve at the bottom of the hydraulic handle closes the handle, so the driver still needs to operate the handle. In addition, the hydraulic handle does not close the bucket, so it can only be leveled when the bucket is retracted. If the bucket is in the state of retracting the bucket, the hydraulic handle needs to be manually operated to turn the bucket to level the bucket. The operation method is cumbersome, and it is easy to cause unstable leveling accuracy due to differences in driver skills and experience, affecting work efficiency. In addition, the electronic handle used in the electric loader does not have a solenoid valve at the bottom of the electronic handle to close the handle. The traditional bucket leveling method is not suitable for electric loaders.
[0004] Although some automatic bucket leveling systems already exist, the operation of existing automatic bucket leveling systems is still somewhat complicated. The external sensors that detect whether the bucket is level need to rely on other components to be triggered. When leveling automatically, the driver needs to make a judgment and manually select the dump or retract bucket selection switch. Utility Model Content
[0005] In order to solve the technical problems existing in the prior art, the utility model provides a one-key leveling control system for an electric loader bucket, which solves the above-mentioned technical problems.
[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:
[0007] A one-touch leveling control system for an electric loader bucket comprises a vehicle controller, a leveling proximity switch, a one-touch leveling button, a bucket folding solenoid valve and a bucket tipping solenoid valve, wherein the input end of the vehicle controller is connected to the one-touch leveling button and the leveling proximity switch, the one-touch leveling button is connected to the positive pole of the leveling proximity switch and to a power supply, and the negative pole of the leveling proximity switch is grounded; the output end of the vehicle controller is connected to the bucket folding solenoid valve and the bucket tipping solenoid valve.
[0008] According to a further technical solution, the output end of the leveling proximity switch is connected to the input end of the vehicle controller.
[0009] According to a further technical solution, the bucket retracting solenoid valve and the bucket dumping solenoid valve receive the current output by the vehicle controller through a wiring harness.
[0010] According to a further technical solution, the bucket retracting solenoid valve and the bucket tipping solenoid valve are arranged in coordination with the main valve and the pilot valve group of the bucket rotating cylinder.
[0011] According to a further technical solution, the leveling proximity switch is fixedly mounted on the top of the bucket cylinder opposite to the bucket leveling indicator rod.
[0012] According to a further technical solution, a sensing plate is fixedly mounted on the bottom of the bucket leveling indicator rod.
[0013] According to a further technical solution, a leveling proximity switch is provided below the end of the sensing plate, and the position of the bucket leveling indicator rod is detected by the leveling proximity switch.
[0014] According to a further technical solution, when the leveling proximity switch outputs a high level, the bucket is in a retracted state.
[0015] According to a further technical solution, when the leveling proximity switch outputs a low level, the bucket is in a tipping state.
[0016] According to a further technical solution, the control system further includes an electronic handle, and an output end of the electronic handle is connected to an input end of the vehicle controller.
[0017] Beneficial effects of the utility model:
[0018] The utility model detects the state of the bucket through a proximity switch and transmits it to the vehicle controller for corresponding bucket tipping or bucket collection operations. The position of the bucket leveling indicator rod can be detected to determine the state of the bucket without touching other components. A one-touch leveling button is provided. After the button is triggered, the vehicle controller determines the state of the bucket and performs corresponding bucket collection or tipping operations, thereby realizing automatic leveling of the bucket. The overall control system has a simple structure, is convenient and easy to operate, and is conducive to improving the overall work efficiency of the driver.
[0019] The vehicle controller of the utility model determines the state of the bucket in real time by real-time monitoring of the leveling proximity switch. Once a trigger signal of the one-touch leveling button is received, current can be transmitted to the corresponding bucket retracting or dumping solenoid valve to realize the corresponding operation of the bucket, and finally realize one-touch automatic leveling. The operation is simple and the response speed is fast, which greatly improves the speed of performing the leveling operation on the bucket and improves work efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0021] Figure 1 This is an overall architecture diagram of a one-key leveling control system for a bucket according to an embodiment of the utility model;
[0022] Figure 2 This is a schematic diagram of the installation of a one-key bucket leveling control system according to an embodiment of the utility model.
[0023] Among them, 2-leveling indicator rod, 3-leveling proximity switch, 4-sensing plate, 5-bucket cylinder, 6-bucket cylinder piston rod, 7-boom, 8-front frame, 9-rocker arm, 10-pull rod, 11-bucket, 12-boom cylinder, 13-main valve and pilot valve group. DETAILED DESCRIPTION
[0024] Glossary:
[0025] The vehicle control unit (VCU) is the core control device of new energy vehicles, also known as the electronic control system. Its main functions are to collect vehicle information, driver intentions, control vehicle operation, and diagnose vehicle faults. The VCU is equivalent to the brain of the car, ensuring that the vehicle runs with optimal power, economy, and reliability by processing various signals.
[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0027] like Figure 1 As shown, an embodiment of the utility model provides a one-touch leveling control system for an electric loader bucket, including a vehicle controller, a leveling proximity switch, a one-touch leveling button, a bucket folding solenoid valve and a bucket tipping solenoid valve, the input end of the vehicle controller is connected to the one-touch leveling button and the leveling proximity switch, the one-touch leveling button is connected to the positive pole of the leveling proximity switch and to a power supply, and the negative pole of the leveling proximity switch is grounded; the output end of the vehicle controller is connected to the bucket folding solenoid valve and the bucket tipping solenoid valve.
[0028] In this embodiment, the power supply is 24V.
[0029] In this embodiment, if Figure 2 As shown, a sensing plate 4 is fixedly installed at the bottom of the bucket leveling indicator rod 2, and a leveling proximity switch 3 is fixedly installed on the top of the bucket cylinder 5 at a relatively lower position than the bucket leveling indicator rod 2. The leveling proximity switch 3 is used to detect the position of the bucket leveling indicator rod 2, and the state of the bucket 11 is judged by the leveling proximity switch 3.
[0030] When the bucket 11 is in a flat position, the proximity switch 3 is placed below the end of the sensing plate. Those skilled in the art can adjust the position of the sensing plate or the output mode of the proximity switch to change the state of the output signal of the proximity switch corresponding to the bucket, which is not specifically limited in this embodiment.
[0031] like Figure 1 As shown, the leveling proximity switch is a normally open proximity switch, and its sensing output has two states 0 and 1. When there is no metal object approaching, the contacts of the proximity switch are in a disconnected state, and the output is a low level 0. When the metal object approaches a certain distance, the sensing element inside the proximity switch triggers the switch action, causing the contacts to close, and the output is a high level 1. In other words, when the bucket leveling indicator rod touches the sensing area of the proximity switch, the contacts of the leveling proximity switch close and output a high level 1. At this time, the bucket is in a retracted state. When the bucket leveling indicator rod is away from the sensing area of the proximity switch, the contacts of the leveling proximity switch are disconnected and output a low level 0. At this time, the bucket is in a tipping state. When the leveling proximity switch switches between outputting a high level 1 and a low level 0, the bucket is in a level position.
[0032] In some embodiments, the output signal of the proximity switch and the state corresponding to the bucket can be changed by simply adjusting the position of the induction plate or adjusting the output mode of the proximity switch. The output method of the proximity switch will not limit the implementation of the technical solution of this embodiment. For example, the output signal and the bucket state can be changed to the bucket being in the dumping state when the proximity switch outputs a high level of 1, and the bucket being in the retracted state when the proximity switch outputs a low level of 0. In addition to the proximity switch described in this embodiment, proximity switches with different output forms can also be included in this solution and are all protected by this solution.
[0033] In this embodiment, a one-touch leveling button is installed on the electronic handle of the electric loader to facilitate the driver's operation. When the driver presses the one-touch leveling button, the one-touch leveling button sends a trigger signal to the vehicle controller, indicating that the driver wants the loader's bucket device to perform a leveling operation.
[0034] The one-touch leveling button is a resettable button. When the driver presses the button, the button will send a trigger signal to the vehicle controller. After receiving the trigger signal, the vehicle controller will control the bucket to perform corresponding actions until the bucket is leveled.
[0035] In some embodiments, the one-touch leveling button may also be mounted on a control panel inside the cab of the electric loader so that it is within the driver's sight and easily accessible.
[0036] In this embodiment, if Figure 2As shown, the bucket retracting solenoid valve and the bucket tipping solenoid valve are installed in the front frame 7 of the loader, and are arranged in conjunction with the main valve and the pilot valve group of the bucket cylinder in the front frame 7. The main valve and the pilot valve group control the oil inlet of the bucket cylinder 4. The oil inlet of the bucket cylinder 4 pushes the bucket cylinder piston rod 4 to move, thereby controlling the flipping operation of the loader bucket.
[0037] It should be noted that the installation of the bucket retracting solenoid valve and the bucket tipping solenoid valve and the coordinated setting of the main valve and the pilot valve group of the bucket rotating cylinder can be achieved by adopting the existing installation method and setting method. Those skilled in the art are able to know the specific installation and setting methods, and can make adaptive improvements according to actual conditions and different loader models, which will not be elaborated here.
[0038] The bucket retracting solenoid valve and the bucket tipping solenoid valve receive the current output by the vehicle controller through the wiring harness. When energized, the bucket retracting solenoid valve and the bucket tipping solenoid valve generate electromagnetic force to control the action of the pilot valve group, thereby changing the pressure state in the pilot control chamber, and finally controlling the main valve to achieve precise control of the hydraulic system.
[0039] The bucket retracting solenoid valve is energized and opened, pushing the main valve core to move backward. The main valve core opens the oil circuit to allow high-pressure oil to flow into the large chamber of the bucket cylinder 5, pushing the bucket cylinder piston rod 6 to move forward, the upper part of the rocker arm 9 moves forward, and the lower part of the rocker wall 9 moves backward, driving the pull rod 10 to move backward, and the pull rod 10 pulls the bucket 11 to complete bucket retracting.
[0040] The tipping bucket solenoid valve is energized and opened, pushing the main valve core forward. The main valve core opens the oil circuit to allow high-pressure oil to flow into the small chamber of the bucket cylinder 5, pushing the bucket cylinder piston rod 6 backward, the upper part of the rocker arm 9 moves backward, and the lower part of the rocker arm 9 moves forward, pushing the pull rod 10 forward, and the pull rod 10 pushes the bucket 11 to complete the tipping.
[0041] It should be noted that Figure 2 Except for the component structure of the one-button leveling control system of the bucket in this embodiment, the structures such as the bucket cylinder, bucket, rocker arm, front frame, etc. are all components of the electric loader itself, which belong to the existing structure, and the matching arrangement of the corresponding structures is also the prior art. This embodiment will not be elaborated in detail, and those skilled in the art can know the matching arrangement of each structure and the structures.
[0042] In this embodiment, the electric loader uses an electronic handle. There is no electromagnetic coil at the bottom of the electronic handle to attract the handle, so the handle cannot be attracted in the bucket retracting or dumping position. The handle is laid flat by cutting off the power through the proximity switch.
[0043] The use of electronic handles makes the control of bucket movements more flexible. When the electronic handle is in a neutral state, pressing the one-touch leveling button can realize the automatic leveling of the bucket. If during the one-touch leveling process, the driver wants to exit the one-touch leveling action and perform other operations, the one-touch leveling process can be exited by moving the operating handle to retract or tip the bucket. The vehicle controller VCU immediately executes the driver's current handle operation to perform the corresponding bucket retracting and tipping actions. In other words, the vehicle controller gives priority to the electronic handle to perform bucket retracting and tipping operations.
[0044] The input end of the vehicle controller is connected to the output end of the electronic handle. The vehicle controller receives the control signal of the electronic handle and makes a judgment. According to the judgment result, it realizes the power control of the bucket retracting solenoid valve or the bucket dumping solenoid valve, thereby realizing the corresponding action operation of the bucket.
[0045] The control principle of the bucket one-button leveling control system is:
[0046] The vehicle controller VCU monitors the output signal of the leveling proximity switch in real time, and determines the current position of the bucket in real time. After receiving the trigger signal of the one-touch leveling button, it outputs current to the dump bucket solenoid valve or bucket retracting solenoid valve corresponding to the current bucket position, thereby realizing one-touch leveling of the bucket.
[0047] The current vehicle controller has been receiving a high-level signal output by the leveling proximity switch, and determines that the bucket is in the retracted state. Once the vehicle controller receives the trigger signal of the one-touch leveling button, it outputs current to the tipping bucket solenoid valve, and at the same time increases the speed of the working motor and the flow of the pump accordingly, so that the bucket moves up, achieving the purpose of rapid bucket tipping. As the tipping bucket cylinder moves, the vehicle controller also monitors the output signal of the leveling proximity switch in real time during the tipping process. When the leveling proximity switch output turns to a low-level signal, the bucket is in the leveling position, and the vehicle controller stops outputting current to the tipping bucket solenoid valve, and the bucket no longer moves, achieving the purpose of automatic leveling of the bucket with one button.
[0048] At present, the vehicle controller has been receiving the low-level signal output by the leveling proximity switch, and determines that the bucket is in the tipping state. Once the vehicle controller receives the trigger signal of the one-touch leveling button, it outputs current to the bucket retracting solenoid valve, and at the same time increases the speed of the working motor and the flow of the pump accordingly, so that the bucket moves up, and the purpose of quickly retracting the bucket is achieved. As the bucket retracting cylinder moves, the vehicle controller also monitors the output signal of the leveling proximity switch in real time during the bucket retracting process. When the leveling proximity switch output turns to a high-level signal, the bucket is in the leveling position at this time, and the vehicle controller stops outputting current to the bucket retracting solenoid valve, and the bucket no longer moves, achieving the purpose of automatic leveling of the bucket with one button.
[0049] It should be noted that the pump is connected in series with the working motor, and the pump speed matches the motor speed.
[0050] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.
Claims
1. A one-button leveling control system for an electric loader bucket, characterized in that: It includes a vehicle controller, a leveling proximity switch, a one-touch leveling button, a bucket folding solenoid valve and a bucket tipping solenoid valve. The input end of the vehicle controller is connected to the one-touch leveling button and the leveling proximity switch. The one-touch leveling button is connected to the positive pole of the leveling proximity switch and to a power supply, and the negative pole of the leveling proximity switch is grounded; the output end of the vehicle controller is connected to the bucket folding solenoid valve and the bucket tipping solenoid valve.
2. The one-key leveling control system for the bucket of an electric loader according to claim 1, characterized in that: The output end of the leveling proximity switch is connected to the input end of the vehicle controller.
3. The one-key leveling control system for the bucket of an electric loader according to claim 1, characterized in that: The bucket retracting solenoid valve and the bucket dumping solenoid valve receive current output by the vehicle controller through a wiring harness.
4. The one-key leveling control system for the bucket of an electric loader according to claim 3, characterized in that: The bucket retracting solenoid valve and the bucket tipping solenoid valve are arranged in coordination with the main valve and the pilot valve group of the bucket rotating cylinder.
5. The one-key leveling control system for the bucket of an electric loader according to claim 1, characterized in that: The leveling proximity switch is fixedly mounted on the top of the bucket cylinder opposite to the bucket leveling indicator rod.
6. The one-key leveling control system for the bucket of an electric loader according to claim 5, characterized in that: A sensing plate is fixedly installed at the bottom of the bucket leveling indicator rod.
7. The one-key leveling control system for the bucket of an electric loader according to claim 6, characterized in that: A leveling proximity switch is arranged below the end of the induction plate, and the position of the bucket leveling indicator rod is detected by the leveling proximity switch.
8. The one-key leveling control system for the bucket of an electric loader according to claim 7, characterized in that: When the leveling proximity switch outputs a high level, the bucket state is a retracted bucket state.
9. The one-key leveling control system for the bucket of an electric loader according to claim 7, characterized in that: When the leveling proximity switch outputs a low level, the bucket state is a tipping state.
10. The one-key leveling control system for an electric loader bucket as claimed in claim 1, characterized in that: The control system also includes an electronic handle, an output end of the electronic handle is connected to an input end of the vehicle controller.