A method, arrangement and machine for breaking work

Abstract

The embodiment of the application provides a crushing operation method, device and operation machine, comprising: acquiring a reference working frequency corresponding to a crushing device; controlling frequency conversion working of the crushing device based on the reference working frequency corresponding to the crushing device; and updating the reference working frequency according to a working time length of the crushing device, so that the efficiency of the crushing operation is improved.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery, and more specifically to a crushing operation method, apparatus, and machinery. Background Technology

[0002] There are two types of hydraulic breakers currently used on excavators: fixed-frequency breakers and variable-frequency breakers. Fixed-frequency breakers operate at a constant frequency, regardless of rock hardness. Variable-frequency breakers, on the other hand, require operators to select the frequency based on rock hardness. For softer rocks, the operating frequency can be increased to improve speed while maintaining impact force, thus increasing breaking efficiency. Conversely, for harder rocks, the operating frequency can be decreased, resulting in reduced impact force and a more ideal overall effect. In practice, operators may not be able to properly select the appropriate breaking frequency based on rock hardness; furthermore, the hardness of some rocks may vary, making frequent frequency switching impractical. Summary of the Invention

[0003] The purpose of this invention is to provide a crushing operation method, apparatus, and machinery, which improves the efficiency of crushing operations.

[0004] To achieve the above objectives, embodiments of the present invention provide a crushing operation method, comprising:

[0005] Obtain the reference operating frequency corresponding to the crushing device;

[0006] Based on the reference operating frequency corresponding to the crushing device, the crushing device is controlled to operate at a variable frequency.

[0007] The reference operating frequency is updated based on the operating time of the crushing device.

[0008] Optionally, controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device includes:

[0009] When the reference operating frequency is a first frequency, the crushing device is controlled to operate at the first frequency;

[0010] Until the working time of the crushing device at the first frequency exceeds the first preset time, the crushing device is controlled to work at the second frequency.

[0011] Until the working time of the crushing device reaches the second preset time, the crushing device is controlled to work at the third frequency.

[0012] Wherein, the first frequency is greater than the second frequency, and the second frequency is greater than the third frequency.

[0013] Optionally, updating the reference operating frequency based on the operating time of the crushing device includes:

[0014] When the reference operating frequency is the first frequency.

[0015] If the working time of the crushing device is greater than the first preset time and less than the second preset time, the reference working frequency will be updated to the second frequency.

[0016] If the working time of the crushing device is greater than or equal to the second preset time, the reference working frequency is updated to the third frequency.

[0017] Optionally, controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device further includes:

[0018] When the reference operating frequency is the second frequency, the crushing device is controlled to operate at the second frequency;

[0019] Until the working time of the crushing device reaches the second preset time, the crushing device is controlled to work at the third frequency.

[0020] The second frequency is greater than the third frequency.

[0021] Optionally, updating the reference operating frequency based on the operating time of the crushing device further includes:

[0022] When the reference operating frequency is the second frequency.

[0023] If the working time of the crushing device is less than or equal to the first preset time, the reference working frequency will be updated to the first frequency;

[0024] If the working time of the crushing device is greater than or equal to the second preset time, the reference working frequency is updated to the third frequency.

[0025] Optionally, controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device further includes:

[0026] When the reference operating frequency is the third frequency, the crushing device is controlled to operate at the third frequency;

[0027] Until the duration of operation of the crushing device at the third frequency exceeds the first preset duration, the crushing device is controlled to operate at the second frequency.

[0028] Until the working time of the crushing device reaches the second preset time, the crushing device is controlled to work at the third frequency.

[0029] The second frequency is greater than the third frequency.

[0030] Optionally, updating the reference operating frequency based on the operating time of the crushing device further includes:

[0031] When the reference operating frequency is the third frequency.

[0032] If the working time of the crushing device is less than or equal to the first preset time, the reference working frequency will be updated to the first frequency;

[0033] If the working time of the crushing device is greater than the first preset time and less than the second preset time, the reference working frequency will be updated to the second frequency.

[0034] On the other hand, the present invention also proposes a crushing operation device, comprising:

[0035] The acquisition module is used to acquire the reference operating frequency corresponding to the crushing device;

[0036] The first processing module is used to control the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device.

[0037] The second processing module is used to update the reference operating frequency based on the operating time of the crushing device.

[0038] On the other hand, the present invention also proposes a working machine that includes the crushing device described above.

[0039] On the other hand, the present invention also proposes a readable storage medium storing instructions that, when executed by a processor, configure the processor to perform the crushing operation method as described above.

[0040] This invention provides a crushing operation method, comprising: acquiring a reference operating frequency corresponding to a crushing device; controlling the crushing device to operate at a variable frequency based on the reference operating frequency; and updating the reference operating frequency according to the operating duration of the crushing device. This method leverages the varying impact force of the crushing device at different frequencies and automatically adjusts the reference operating frequency based on different rock hardness levels to ensure rapid operation while maintaining sufficient impact force. It achieves timely frequency adjustment for different crushing zones, improving production efficiency and user experience.

[0041] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0042] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0043] Figure 1 This is a schematic diagram of a variable frequency hydraulic breaker based on existing technology;

[0044] Figure 2 This is a schematic diagram of a method for excavator crushing operations according to the present invention;

[0045] Figure 3 This is a flowchart illustrating the three working states of the present invention;

[0046] Figure 4 This is a schematic diagram of an excavator crushing device according to the present invention.

[0047] Explanation of reference numerals in the attached figures

[0048] 101 - Reversing valve

[0049] 102 - Low-frequency solenoid valve

[0050] 103-High-frequency solenoid valve,

[0051] 104-Nitrogen Chamber,

[0052] 105-piston,

[0053] 106-Drill rod,

[0054] 107-Accumulator

[0055] 201 - Acquisition Module

[0056] 202 - First Processing Module

[0057] 203 - Second processing module. Detailed Implementation

[0058] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0059] Figure 1 This is a schematic diagram of a variable frequency hydraulic breaker based on existing technology, such as... Figure 1As shown, the variable frequency hydraulic breaker includes a reversing valve 101, a low-frequency solenoid valve 102, a high-frequency solenoid valve 103, a nitrogen chamber 104, a piston 105, a chisel 106, and an accumulator 107. High-pressure oil enters the lower chamber of the piston rod through the reversing valve 101 from the oil inlet, pushing the piston upward; low-pressure oil flows back to the oil tank through the return port of the reversing valve 101. During its ascent, the piston 105 compresses the nitrogen in the nitrogen chamber 104, imparting elastic potential energy to the nitrogen. When the piston 105 rises to a certain position, the lower high-pressure oil acts on one side of the reversing valve 101 through the middle oil passage, pushing the reversing valve 101 to reverse. After reversing, the high-pressure oil enters the upper side of the piston 105, and the lower low-pressure oil returns to the oil tank. The elastic potential energy of the compressed nitrogen is released, pushing the piston 105 to move rapidly downward, striking the chisel 106, transmitting energy waves, and thus performing the crushing operation. The above describes the working principle of a fixed-frequency hydraulic breaker. Compared to a fixed-frequency breaker, a variable-frequency hydraulic breaker mainly differs by having multiple reversing oil passages in the middle of the piston chamber, generally categorized as high-frequency, medium-frequency, and low-frequency. Figure 1 As can be seen, the high-pressure oil travels a shorter distance from the lower chamber to the high-frequency reversing oil passage, resulting in a shorter travel time and thus a higher impact frequency. Simultaneously, due to the shorter travel distance, the nitrogen compression is less, leading to lower elastic potential energy and a weaker impact force upon release. Conversely, the low-frequency oil passage travels a longer distance from the lower chamber, resulting in a longer travel time and a lower frequency. However, the nitrogen compression is more extensive, leading to greater elastic potential energy and a stronger impact force upon release.

[0060] This invention proposes a method for excavator crushing operations, such as... Figure 2 As shown, the method includes: Step S101 is to obtain the reference operating frequency corresponding to the crushing device. Preferably, the crushing device is an adjustable frequency breaker, and the crushing frequency of the breaker is low frequency, medium frequency, and high frequency. The reference operating frequency can be the start-up frequency and / or initial frequency of the crushing device. The first crushing operation after the crushing device starts defaults to high frequency output, at which time the breaker's impact frequency is high, but the impact force is small. It can also be a frequency selected by the operator based on experience.

[0061] Step S102 is to control the crushing device to operate at a variable frequency based on the reference operating frequency corresponding to the crushing device.

[0062] According to one specific implementation, controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device includes: when the reference operating frequency is a first frequency, controlling the crushing device to operate at the first frequency; until the operating time of the crushing device at the first frequency is higher than a first preset time, controlling the crushing device to operate at a second frequency; until the operating time of the crushing device reaches a second preset time, controlling the crushing device to operate at a third frequency; wherein, the first frequency is greater than the second frequency, and the second frequency is greater than the third frequency.

[0063] The step of controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device further includes: when the reference operating frequency is a second frequency, controlling the crushing device to operate at the second frequency; until the operating time of the crushing device reaches a second preset time, controlling the crushing device to operate at a third frequency; wherein the second frequency is greater than the third frequency.

[0064] The step of controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device further includes: when the reference operating frequency is a third frequency, controlling the crushing device to operate at the third frequency; until the operating time of the crushing device at the third frequency is higher than a first preset time, controlling the crushing device to operate at a second frequency; until the operating time of the crushing device reaches a second preset time, controlling the crushing device to operate at a third frequency; wherein, the second frequency is greater than the third frequency.

[0065] Step S103 is to update the reference operating frequency based on the operating time of the crushing device.

[0066] Specifically, the breaker's pedal is continuously depressed to break the first area to be broken; the breaker is a variable frequency breaker. The duration of continuous pressing of the breaker pedal during breaking indirectly determines the rock hardness. Timing begins when the operator presses the breaker pedal and ends when the broken area is completed, constituting one cycle, or working time. The variable frequency breaker includes various breaking frequencies, such as low-frequency, medium-frequency, and high-frequency breaking.

[0067] According to one specific implementation, updating the reference operating frequency based on the operating time of the crushing device includes: when the reference operating frequency is a first frequency, if the operating time of the crushing device is greater than a first preset time and less than a second preset time, updating the reference operating frequency to a second frequency; if the operating time of the crushing device is greater than or equal to the second preset time, updating the reference operating frequency to a third frequency.

[0068] The step of updating the reference operating frequency based on the operating time of the crushing device further includes: when the reference operating frequency is a second frequency, if the operating time of the crushing device is less than or equal to a first preset time, updating the reference operating frequency to the first frequency; if the operating time of the crushing device is greater than or equal to a second preset time, updating the reference operating frequency to a third frequency.

[0069] The step of updating the reference operating frequency based on the operating time of the crushing device further includes: when the reference operating frequency is a third frequency, if the operating time of the crushing device is less than or equal to a first preset time, updating the reference operating frequency to a first frequency; if the operating time of the crushing device is greater than the first preset time and less than a second preset time, updating the reference operating frequency to a second frequency.

[0070] During the crushing process, workers will continuously crush adjacent different crushing areas. Since the geological and environmental parameters of adjacent crushing areas are similar or the same, this invention is preferably used for crushing operations in adjacent or similar geological areas.

[0071] For example, the crushing frequency for the next working time is considered comprehensively based on the working time of the previous few adjacent or surrounding crushing areas. For instance, a certain area to be crushed includes multiple adjacent crushing areas: crushing area A, crushing area B, crushing area C, crushing area D, etc. (each crushing area is sequentially adjacent or connected). The initial crushing frequency for crushing area A yields working time A. The crushing frequency for crushing area B is inferred from working time A; the crushing frequency for crushing area C is inferred from working time A and / or working time B; the crushing frequency for crushing area D is inferred from at least one cycle of working time A, working time B, and working time C. When determining the crushing frequency for crushing area D based on working time A, working time B, and working time C, each working time has a different weight. Preferably, working time C (closest to crushing area D) has the largest crushing weight. The area to be crushed can be rock, hardened road surface, etc.

[0072] The method further includes: calibrating the first preset duration and / or the second preset duration based on historical data of working duration; the historical data of working duration is the working duration of multiple crushing areas; if the working duration of multiple crushing areas is less than the first preset duration, then the first preset duration is reduced; if the working duration of multiple crushing areas is greater than the second preset duration, then the second preset duration is increased.

[0073] According to a specific implementation method, such as Figure 3As shown, if the output frequency of the variable frequency breaker includes a low-frequency crushing frequency, a medium-frequency crushing frequency, and a high-frequency crushing frequency, when the reference operating frequency is the high-frequency crushing frequency, the breaker is controlled to operate at the high-frequency crushing frequency; until the operating time of the breaker at the high-frequency crushing frequency is higher than a first preset time T1, the breaker is controlled to operate at the medium-frequency crushing frequency; until the operating time of the breaker reaches a second preset time T2, the breaker is controlled to operate at the low-frequency crushing frequency; wherein, the high-frequency crushing frequency is greater than the medium-frequency crushing frequency, and the medium-frequency crushing frequency is greater than the low-frequency crushing frequency.

[0074] When the reference operating frequency is a high-frequency crushing frequency, if the operating time of the crushing device is greater than a first preset time T1 and less than a second preset time T2, the reference operating frequency is updated to a medium-frequency crushing frequency; if the operating time of the crushing device is greater than or equal to the second preset time T2, the reference operating frequency is updated to a low-frequency crushing frequency. T2 is greater than T1.

[0075] When the reference operating frequency is the medium-frequency crushing frequency, the crushing device is controlled to operate at the medium-frequency crushing frequency; until the operating time of the crushing device reaches the second preset time T2*K_mid, the crushing device is controlled to operate at the low-frequency crushing frequency; wherein, the medium-frequency crushing frequency is greater than the low-frequency crushing frequency.

[0076] When the reference working frequency is a medium-frequency crushing frequency, if the working time of the crushing device is less than or equal to the first preset time T1*K_mid, that is, the rock hardness is not high, the reference working frequency is updated to a high-frequency crushing frequency; if the working time of the crushing device is greater than or equal to the second preset time T2*K_mid, the reference working frequency is updated to a low-frequency crushing frequency, that is, the crushing area has high hardness, and the speed of using the medium-frequency crushing frequency is slow, so the crushing frequency should be appropriately reduced.

[0077] When the reference operating frequency is a low-frequency crushing frequency, the crushing device is controlled to operate at the low-frequency crushing frequency; until the operating time of the crushing device at the low-frequency crushing frequency is higher than the first preset time T1*K_Low, the crushing device is controlled to operate at the medium-frequency crushing frequency; until the operating time of the crushing device reaches the second preset time T2*K_Low, the crushing device is controlled to operate at the low-frequency crushing frequency; wherein, the second frequency is greater than the low-frequency crushing frequency.

[0078] When the reference operating frequency is a low-frequency crushing frequency, if the operating time of the crushing device is less than or equal to the first preset time T1*K_Low, the reference operating frequency is updated to a high-frequency crushing frequency; if the operating time of the crushing device is greater than the first preset time T1*K_Low and less than the second preset time T2*K_Low, the reference operating frequency is updated to a medium-frequency crushing frequency.

[0079] The selection of the two time parameters T1 and T2 for crushing time was achieved by establishing the relationship between rock hardness and time parameters through multiple test samples (T1 is less than T2).

[0080] K_mid and K_Low are frequency influence factors. The impact force varies at different frequencies, so the impact effect differs for the same amount of time. Therefore, the preset duration at mid-frequency needs to be corrected by applying a coefficient. Since the impact force at mid-frequency is greater than at high frequency, the frequency influence factor K_mid is less than 1. Similarly, the preset duration at low frequency needs to be corrected by multiplying it by a frequency influence factor K_Low. Since the impact force at low frequency is greater than at mid-frequency, K_Low is less than K_mid. In summary, the following relationship exists between the mid-frequency influence factor and the low-frequency influence factor: 1 > K_mid > K_Low.

[0081] Considering that operators may experience leg numbness from prolonged use of the crushing pedal during crushing operations and need to briefly release it for rest, the preset time should take this into account. That is, if the time the pedal is pressed for two crushing operations is less than T, the timing will be combined and they will not be considered as two separate operations.

[0082] When the output is at the high-frequency crushing frequency, the controller outputs current to the high-frequency solenoid valve 103. After being energized, the valve core of the high-frequency solenoid valve 103 moves upward, opening the high-frequency oil passage. The high-pressure oil under the piston 105 pushes the directional valve to change direction through the high-frequency oil passage. At this time, the piston 105 has the shortest stroke, the highest frequency, and the nitrogen chamber 104 is compressed to its minimum, resulting in the lowest impact force. When the output is at the medium-frequency crushing frequency, neither the low-frequency solenoid valve 102 nor the high-frequency solenoid valve 103 is energized, and the valve core is in the neutral position. The high-pressure oil under the piston 105 pushes the directional valve to change direction through the medium-frequency oil passage. At this time, the piston 105 has a moderate stroke, the frequency is lower, the compression degree of the nitrogen chamber 104 is increased, and the impact force is increased. When the output is at the low-frequency crushing frequency, the low-frequency solenoid valve 102 is energized, the valve core moves downward, and the high-pressure oil under the piston 105 pushes the directional valve to change direction through the low-frequency oil passage. At this time, the piston 105 has the longest stroke, the lowest frequency, the nitrogen chamber 104 is compressed to its maximum, and the impact force is maximum.

[0083] On the other hand, the present invention also proposes a crushing operation device, such as Figure 4As shown, the device includes: an acquisition module 201, used to acquire the reference operating frequency corresponding to the crushing device; a first processing module 202, used to control the crushing device to operate at a variable frequency based on the reference operating frequency corresponding to the crushing device; and a second processing module 203, used to update the reference operating frequency according to the operating time of the crushing device.

[0084] When the reference operating frequency is a first frequency, the first processing module 202 controls the crushing device to operate at the first frequency; until the operating time of the crushing device at the first frequency exceeds a first preset time, it controls the crushing device to operate at a second frequency; until the operating time of the crushing device reaches a second preset time, it controls the crushing device to operate at a third frequency; wherein, the first frequency is greater than the second frequency, and the second frequency is greater than the third frequency. If the operating time of the crushing device is greater than the first preset time but less than the second preset time, the second processing module 203 updates the reference operating frequency to the second frequency; if the operating time of the crushing device is greater than or equal to the second preset time, it updates the reference operating frequency to the third frequency.

[0085] When the reference operating frequency is the second frequency, the first processing module 202 controls the crushing device to operate at the second frequency; until the operating time of the crushing device reaches a second preset time, it controls the crushing device to operate at a third frequency; the second frequency is greater than the third frequency. If the operating time of the crushing device is less than or equal to a first preset time, the second processing module 203 updates the reference operating frequency to the first frequency; if the operating time of the crushing device is greater than or equal to the second preset time, the reference operating frequency is updated to the third frequency.

[0086] When the reference operating frequency is a third frequency, the first processing module 202 controls the crushing device to operate at the third frequency; until the operating time of the crushing device at the third frequency exceeds a first preset time, it controls the crushing device to operate at a second frequency; until the operating time of the crushing device reaches a second preset time, it controls the crushing device to operate at a third frequency; the second frequency is greater than the third frequency. If the operating time of the crushing device is less than or equal to the first preset time, the second processing module 203 updates the reference operating frequency to the first frequency; if the operating time of the crushing device is greater than the first preset time and less than the second preset time, it updates the reference operating frequency to the second frequency.

[0087] On the other hand, the present invention also proposes a working machine that includes the crushing device described above.

[0088] On the other hand, the present invention also proposes a readable storage medium storing instructions that, when executed by a processor, configure the processor to perform the crushing operation method as described above.

[0089] This invention provides a crushing operation method, comprising: acquiring a reference operating frequency corresponding to a crushing device; controlling the crushing device to operate at a variable frequency based on the reference operating frequency; and updating the reference operating frequency according to the operating duration of the crushing device. This method leverages the varying impact force of the crushing device at different frequencies and automatically adjusts the reference operating frequency based on different rock hardness levels to ensure rapid operation while maintaining sufficient impact force. It achieves timely frequency adjustment for different crushing zones, improving production efficiency and user experience.

[0090] This invention can automatically adjust the frequency according to the hardness of different crushing zones, ensuring the fastest possible operation while maintaining sufficient impact force, thus improving production efficiency and creating economic benefits for customers. Compared to existing variable frequency breakers, it simplifies the operation process, improves the user experience and accuracy, and can indirectly determine rock hardness through operation time, eliminating the need for cumbersome manual frequency setting and achieving autonomous frequency conversion. Furthermore, it offers greater flexibility and adaptability to various working conditions. When rocks of varying hardness are distributed in the same area, the possibility of human judgment of rock hardness is greatly reduced. Autonomous frequency conversion avoids the risk of human error in judging rock hardness, leading to inappropriate frequency selection and reduced breaker lifespan.

[0091] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0092] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0093] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a microcontroller, chip, or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0094] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A crushing operation method, characterized in that, include: Obtain the reference operating frequency corresponding to the crushing device; Based on the reference operating frequency corresponding to the crushing device, the crushing device is controlled to operate at a variable frequency. The reference operating frequency is updated based on the operating time of the crushing device, where the operating time is the time from when the crushing pedal is pressed until the area to be crushed is crushed.

2. The method according to claim 1, characterized in that, The step of controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device includes: When the reference operating frequency is a first frequency, the crushing device is controlled to operate at the first frequency; Until the working time of the crushing device at the first frequency exceeds the first preset time, the crushing device is controlled to work at the second frequency. Until the working time of the crushing device reaches the second preset time, the crushing device is controlled to work at the third frequency. Wherein, the first frequency is greater than the second frequency, and the second frequency is greater than the third frequency.

3. The method according to claim 1, characterized in that, The step of updating the reference operating frequency based on the operating time of the crushing device includes: When the reference operating frequency is the first frequency. If the working time of the crushing device is greater than the first preset time and less than the second preset time, the reference working frequency will be updated to the second frequency. If the working time of the crushing device is greater than or equal to the second preset time, the reference working frequency is updated to the third frequency.

4. The method according to claim 1, characterized in that, The method of controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device further includes: When the reference operating frequency is the second frequency, the crushing device is controlled to operate at the second frequency; Until the working time of the crushing device reaches the second preset time, the crushing device is controlled to work at the third frequency. The second frequency is greater than the third frequency.

5. The method according to claim 1, characterized in that, The step of updating the reference operating frequency based on the operating time of the crushing device further includes: When the reference operating frequency is the second frequency. If the working time of the crushing device is less than or equal to the first preset time, the reference working frequency will be updated to the first frequency; If the working time of the crushing device is greater than or equal to the second preset time, the reference working frequency is updated to the third frequency.

6. The method according to claim 1, characterized in that, The method of controlling the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device further includes: When the reference operating frequency is the third frequency, the crushing device is controlled to operate at the third frequency; Until the duration of operation of the crushing device at the third frequency exceeds the first preset duration, the crushing device is controlled to operate at the second frequency. Until the working time of the crushing device reaches the second preset time, the crushing device is controlled to work at the third frequency. The second frequency is greater than the third frequency.

7. The method according to claim 1, characterized in that, The step of updating the reference operating frequency based on the operating time of the crushing device further includes: When the reference operating frequency is the third frequency. If the working time of the crushing device is less than or equal to the first preset time, the reference working frequency will be updated to the first frequency; If the working time of the crushing device is greater than the first preset time and less than the second preset time, the reference working frequency will be updated to the second frequency.

8. A crushing operation device, characterized in that, include: The acquisition module is used to acquire the reference operating frequency corresponding to the crushing device; The first processing module is used to control the frequency conversion operation of the crushing device based on the reference operating frequency corresponding to the crushing device. The second processing module is used to update the reference working frequency according to the working time of the crushing device, wherein the working time is the time from when the crushing pedal is pressed to when the crushing area is crushed.

9. A type of operating machinery, characterized in that, The operating machinery includes the crushing device described in claim 8 above.

10. A readable storage medium storing instructions, characterized in that, When executed by a processor, this instruction causes the processor to be configured to perform the crushing operation method according to any one of claims 1 to 7.

Images