An intelligent hydraulic impact crusher

Abstract

The present invention discloses an intelligent hydraulic impact crusher, which relates to the field of material crushing. The following scheme is proposed, which includes: a machine body, in which a rotor and an impact frame are rotatably connected; a cylinder barrel, which is rotatably connected to the machine body, and the cylinder barrel is divided into a first pressure regulating chamber, a compression chamber and a second pressure regulating chamber in sequence, and a pulling rod and a partition plug are slidably sealed in the compression chamber, and a spring is provided between the pulling rod and the partition plug, and the end of the pulling rod is hinged to the impact frame; a first acquisition module, which is fixed to the machine body and is used to collect the sound frequency of the machine body; a second acquisition module, which is fixed to the machine body and is used to collect the vibration frequency of the machine body; an identification module, which inputs the sound frequency and the vibration frequency into a trained crushing state identification model and outputs the crushing state. By identifying the changes in the sound frequency and the vibration frequency during the crushing process, the crushing state is output, and the position and feedback force of the impact frame are changed according to the crushing state to improve the crushing efficiency.

Description

Technical Field

[0001] The invention relates to the field of material crushing, and in particular to an intelligent hydraulic impact crusher. Background Art

[0002] The impact crusher is mainly composed of a machine body, a rotor, an impact frame and an impact liner. The impact liner is installed on the impact frame. The impact frame is not completely fixed on the machine body, but is connected to the machine body through a tie rod and a spring. The rotor rotates to hit the material, causing the material to collide between the rotor and the impact liner for crushing. The feedback force of the impact frame can be controlled by changing the spring elastic force to adapt to the crushing of materials with different particle sizes.

[0003] For example, the Chinese patent with the authorization announcement number CN104028337B discloses an impact crusher, including a frame, a rotor, a first impact frame, and a second impact frame, wherein the impact liner is installed on the first impact frame and the second impact frame. To control the particle size and crushing efficiency of the material, it is necessary to control the spacing between the impact liner and the rotor and the impact strength of the first impact frame and the second impact frame;

[0004] For example, the Chinese patent with the authorization announcement number CN207056683U discloses a new type of hydraulic adjustment mechanism for an impact crusher, including an adjustment frame, the adjustment frame including a support frame and a liner, the liner is provided with a rod hole, a spring pull rod passes through the rod hole and is sleeved with a reset spring, a spring seat and a locking nut, and the other end of the spring pull rod is sleeved with a flat washer and a hexagonal nut; through grooves are provided at both ends of the liner, a hinge seat is provided on the liner, and an adjustment cylinder assembly is provided on the hinge seat, which adjusts the adjustment frame by adjusting the cylinder to achieve position adjustment of the impact liner;

[0005] However, its adjustment method can only be passive. When crushing materials, the materials go through three stages from entering the machine body to completion of crushing, namely, the materials from the whole to the initial crushing and splitting, the initial crushing and splitting to the second crushing and splitting, and the second crushing and splitting to the completion of crushing. Due to the change in the volume of the material, the inertial force of its own collision will change. If the passive adjustment method is used, the impact frame cannot automatically adjust to the better position and better feedback force at different stages. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide an intelligent hydraulic impact crusher to achieve automatic adjustment of the position and feedback force of the impact frame at different crushing stages during the crushing process.

[0007] In order to achieve the above technical objectives, the present invention provides an intelligent hydraulic impact crusher:

[0008] It includes: a body, in which a rotor and an impact frame are rotatably connected; a cylinder, which is rotatably connected to the body, and the cylinder is divided into a first pressure regulating chamber, a compression chamber and a second pressure regulating chamber in sequence, and a pulling rod and a partition plug are slidingly and sealed in the compression chamber, a spring is provided between the pulling rod and the partition plug, and the end of the pulling rod is hinged to the impact frame; a first acquisition module, which is fixed to the body and is used to collect the sound frequency of the body; a second acquisition module, which is fixed to the body and is used to collect the vibration frequency of the body; an identification module, which inputs the sound frequency and the vibration frequency into a trained crushing state recognition model and outputs the crushing state; a control module, which determines whether to generate an adjustment instruction based on the crushing state; a liquid regulating mechanism, which is fixed to the body, and the output ends of the liquid regulating mechanism are respectively connected to the first pressure regulating chamber and the second pressure regulating chamber, and the internal liquid volume of the first pressure regulating chamber and the second pressure regulating chamber is adjusted according to the adjustment instruction.

[0009] Preferably, the machine body comprises a fixed shell and an inspection shell, a feed port and an outlet are respectively provided at both ends of the fixed shell, the inspection shell is rotatably connected to the fixed shell, inspection cylinders are provided on both sides of the inspection shell, and both ends of the inspection cylinders are respectively hinged to the fixed shell and the inspection shell.

[0010] Preferably, the rotor is rotatably connected to the fixed shell, and plate hammers are evenly fixed on the outer surface of the rotor; the impact frame is rotatably connected to the inspection shell, and an impact lining is fixed on the outer surface of the impact frame.

[0011] Preferably, the cylinder barrel is rotatably connected to the inspection shell, the pulling rod is slidably and hermetically connected to the inspection shell, a separating ring is sleeved on the pulling rod, and the separating ring is slidably and hermetically connected to the cylinder barrel.

[0012] Preferably, at least two liquid regulating mechanisms are provided, and the output ends of the two liquid regulating mechanisms are respectively connected to the first pressure regulating chamber and the second pressure regulating chamber through pipelines.

[0013] Preferably, the liquid regulating mechanism includes: a liquid storage cylinder, fixed on the machine body, filled with liquid, and connected to the first pressure regulating chamber or the second pressure regulating chamber through a pipeline; a piston, slidingly and sealingly connected to the liquid storage cylinder, for squeezing the liquid; a push-pull frame, slidingly and sealingly connected to the liquid storage cylinder, and fixedly connected to the piston; a stepper motor, fixed on the machine body, a screw rod fixed to the output end of the stepper motor, and the screw rod is threadedly connected to the push-pull frame.

[0014] Preferably, both ends of the screw rod are rotatably connected with a fixing seat, and the fixing seat is fixedly connected to the machine body; a thread sleeve is fixed to the end of the push-pull frame, and the thread sleeve is threadedly connected to the screw rod.

[0015] Preferably, the training method of the broken state recognition model is: before training the broken state recognition model, k groups of historical feature data are collected, and the historical feature data include sound frequency and vibration frequency; the broken state of the k groups of historical feature data are numerically labeled, when the broken state is primary broken, it is labeled as 1, when the broken state is secondary broken, it is labeled as 2, and when the broken state is tertiary broken, it is labeled as 3; each group of historical feature data is used as the input of the machine learning model, and the machine learning model uses the predicted labeling of each group of historical feature data as output, the actual labeling as the prediction target, and minimizing the sum of the prediction accuracies of all labels as the training target; the machine learning model is trained until the sum of the prediction accuracies reaches a stable state, the training is stopped, and the machine learning model obtained by training is used as the broken state recognition model, and the broken state recognition model is one of a naive Bayes model or a support vector machine model.

[0016] Preferably, the method for adjusting the internal liquid volume of the first pressure regulating chamber and the second pressure regulating chamber according to the adjustment instruction includes: a third acquisition module is fixed on the cylinder, which is used to collect the real-time liquid level value 1 and the real-time liquid level value 2 in the first pressure regulating chamber and the second pressure regulating chamber, which are marked as L1 and L2 respectively, and L1 and L2 are both greater than or equal to 0; a regulation library is pre-established, and a target liquid level value 1 and a target liquid level value 2 are established according to the crushing state, which are marked as M1 and M2 respectively, and M1 and M2 are both greater than or equal to 0; if an adjustment instruction is generated, the liquid regulating mechanism starts to work until L1 is equal to M1 and L2 is equal to M2, and the liquid regulating mechanism stops working.

[0017] Preferably, based on the broken state, the method for determining whether to generate an adjustment instruction includes: obtaining a prediction label corresponding to the broken state, when the prediction label is equal to 1, generating a first adjustment instruction, when the prediction label is equal to 2, generating a second adjustment instruction, and when the prediction label is equal to 3, generating a third adjustment instruction.

[0018] It can be seen from the above technical solutions that this application has the following beneficial effects:

[0019] 1: By identifying the changes in sound frequency and vibration frequency during the crushing process, the crushing status is output, and the position and feedback force of the impact frame are changed according to the crushing status to improve the crushing efficiency.

[0020] 2: By opening a compression chamber, a first pressure regulating chamber and a second pressure regulating chamber which are interconnected in the cylinder, and by adjusting the liquid volume in the first pressure regulating chamber and the second pressure regulating chamber, the position of the pulling rod and the compression force of the spring can be flexibly changed to meet the crushing requirements of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the overall structure of an intelligent hydraulic impact crusher provided by the present invention;

[0023] Figure 2 A schematic cross-sectional structure diagram of an intelligent hydraulic impact crusher provided by the present invention;

[0024] Figure 3 A schematic diagram of the cross-sectional structure of a cylinder barrel of an intelligent hydraulic impact crusher provided by the present invention;

[0025] Figure 4 A schematic diagram of the overall structure of a liquid regulating mechanism of an intelligent hydraulic impact crusher provided by the present invention;

[0026] Figure 5 A schematic cross-sectional structure diagram of a liquid regulating mechanism of an intelligent hydraulic impact crusher provided by the present invention;

[0027] Figure 6 A schematic diagram of the overall structure of an intelligent hydraulic impact crusher provided by the present invention;

[0028] Figure 7 A schematic diagram of the maintenance state of the maintenance shell of an intelligent hydraulic impact crusher provided by the present invention;

[0029] Figure 8 This is a flow chart of the control module provided by the present invention.

[0030] Description of the drawings: 1. Machine body; 101. Fixed shell; 101a. Feed inlet; 101b. Discharge outlet; 102. Maintenance shell; 102a. Maintenance cylinder; 2. Rotor; 21. Plate hammer; 3. Impact rack; 31. Impact liner; 4. Cylinder barrel; 4a. Compression chamber; 4b. First pressure regulating chamber; 4c. Second pressure regulating chamber; 41. Pull rod; 42. Separation plug; 43. Spring; 44. Separation ring; 5. Liquid regulating mechanism; 51. Liquid storage cylinder; 52. Piston; 53. Push-pull rack; 531. Threaded sleeve; 54. Stepping motor; 541. Screw rod; 541a. Fixed seat; 6. First acquisition module; 7. Second acquisition module; 8. Identification module; 9. Third acquisition module; 10. Control module. DETAILED DESCRIPTION

[0031] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.

[0032] Embodiment 1

[0033] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, an intelligent hydraulic impact crusher comprises: a body 1, a rotor 2 and an impact frame 3 are rotatably connected inside, the rotor 2 is rotatably connected to the body 1 through a shaft, plate hammers 21 are evenly fixed on the outer surface of the rotor 2, an impact lining plate 31 is fixed on the outer surface of the impact frame 3, and a pulley is connected to the shaft end. When in use, the pulley is connected to the output end of an external driving device through a belt to drive the rotor 2 to rotate. The driving device can be a motor or an internal combustion engine. The body 1 comprises a fixed shell 101 and an inspection shell 102. A feed port 101a and a discharge port 101b are respectively provided at both ends of the fixed shell 101. The material is put into the feed port 101a, and the plate hammer 21 is driven to rotate by the rotor 2 to hit the material, so that the material collides and breaks between the rotor 2 and the impact lining plate 31.

[0034] The inspection shell 102 is rotatably connected to the fixed shell 101. Inspection oil cylinders 102a are provided on both sides of the inspection shell 102. The two ends of the inspection oil cylinder 102a are respectively hinged to the fixed shell 101 and the inspection shell 102.

[0035] Further, such as Figure 2 As shown, the rotor 2 is rotatably connected to the fixed shell 101; the impact frame 3 is rotatably connected to the inspection shell 102;

[0036] It is worth mentioning that during operation, the inspection shell 102 and the fixed shell 101 are fixed by bolts and nuts. During inspection, the bolts and nuts used for fixing are removed, and then the inspection shell 102 is pushed to flip through the inspection cylinder 102a. Figure 7 As shown, the rotor 2 or the impact lining 31 can be overhauled.

[0037] See also Figure 2 and Figure 3The surface of the inspection shell 102 is rotatably connected with a cylinder 4, and the cylinder 4 is divided into a first pressure regulating chamber 4b, a compression chamber 4a, and a second pressure regulating chamber 4c in sequence. A pulling rod 41 and a partition plug 42 are slidably and sealedly connected in the compression chamber 4a. The end of the pulling rod 41 is hinged to the impact frame 3, and the partition plug 42 is located between the first pressure regulating chamber 4b and the compression chamber 4a. By changing the liquid amount in the first pressure regulating chamber 4b, the squeezing force of the partition plug 42 on the spring 43 can be adjusted. Similarly, by changing the liquid amount in the second pressure regulating chamber 4c, it can be adjusted from the other end of the spring 43 to adjust the compression of the spring 43 and the position of the pulling rod 41 in the cylinder 4, that is, to change the position of the impact frame 3. By changing the compression distance of the spring 43, the initial elastic force given by the spring 43 to the pulling rod 41 can be changed, and the feedback force of the impact liner 31 can be changed.

[0038] For example, the smaller the compression distance of the spring 43 is, the smaller the retractable distance of the spring 43 is, and the effect of feedback to the impact liner 31 is that when the material hits the impact liner 31, the movable distance of the impact liner 31 is small, so the collision force between the material and the impact liner 31 is greater, and the crushing effect is better, which is suitable for crushing some materials with larger particle sizes. On the contrary, when the movable distance of the impact liner 31 becomes larger, when it is collided with by the material, it will produce partial unloading force on the collision force, which is suitable for crushing some materials with smaller particle sizes. According to different materials and crushing requirements, the compression distance debugging parameters of the spring 43 are different, and it needs to be set by technical personnel in this field with the support of a large number of experiments and historical generated data. This embodiment is not specifically limited here. The pulling rod 41 is connected to the inspection shell 102 in a sliding and sealing manner to prevent dust from escaping from the connection between the pulling rod 41 and the inspection shell 102 during crushing;

[0039] A spring 43 is provided between the pulling rod 41 and the dividing plug 42. When the impact liner 31 is collided by the material, the impact liner 31 is subjected to the impact force and transmitted to the impact frame 3. The impact frame 3 transmits the impact force to the spring 43 through the pulling rod 41. After being squeezed, the spring 43 releases the elastic force to the impact liner 31, which can increase the feedback force of the impact liner 31 and also play a buffering role on the impact frame 3.

[0040] See also Figure 8 As shown, a first acquisition module 6, a second acquisition module 7, an identification module 8 and a control module 10 are fixed on the body 1, and each module is connected by wire or wirelessly;

[0041] The first acquisition module 6 of the present embodiment is a device such as a microphone or an audio analyzer that can collect audio changes, which is not limited here. The first acquisition module 6 can be fixed on the inspection shell 102 or the fixed shell 101 (not shown), and is used to collect the sound frequency of the body 1. Taking the microphone as an example, the microphone obtains the original sound signal, converts it into a digital signal through a data acquisition card, and transmits it through a cable to access the data processing system. The data processing system performs a series of processing and analysis on the received audio signal, such as spectrum analysis, peak analysis, etc., to extract parameters such as frequency and amplitude suitable for analysis in this embodiment; the first acquisition module 6 of the present embodiment The second acquisition module 7 uses a vibration sensor or a device that can monitor the vibration frequency, which is not limited here. The second acquisition module 7 can be fixed on the inspection shell 102 or the fixed shell 101 (not shown) to collect the vibration frequency of the body 1; the recognition module 8 inputs the sound frequency and the vibration frequency into the trained crushing state recognition model, and outputs the crushing state. When the parent material is crushed from the whole to multiple broken sub-materials, the vibration and noise generated by the body 1 are different, so the crushing state of the material can be judged by analyzing the sound frequency and the vibration frequency; the control module 10 determines whether to generate an adjustment instruction based on the crushing state.

[0042] Specifically, Figure 2 , Figure 4 and Figure 5 As shown, each cylinder 4 is equipped with at least two liquid regulating mechanisms 5, and the output ends of the two liquid regulating mechanisms 5 are respectively connected to the first pressure regulating chamber 4b and the second pressure regulating chamber 4c through pipelines. The liquid regulating mechanism 5 is fixed on the body 1, and the output ends of the liquid regulating mechanism 5 are respectively connected to the first pressure regulating chamber 4b and the second pressure regulating chamber 4c, and the internal liquid volume of the first pressure regulating chamber 4b and the second pressure regulating chamber 4c is adjusted according to the adjustment instruction;

[0043] More specifically, the liquid regulating mechanism 5 includes: a liquid storage cylinder 51, which is fixed on the machine body 1, is filled with liquid, and is connected to the first pressure regulating chamber 4b or the second pressure regulating chamber 4c through a pipeline; a piston 52, which is slidably and sealedly connected to the liquid storage cylinder 51 and is used to squeeze the liquid; a push-pull frame 53, which is slidably and sealedly connected to the liquid storage cylinder 51 and is fixedly connected to the piston 52; a stepper motor 54, which is fixed on the machine body 1, and a screw rod 541 is fixed to the output end of the stepper motor 54, and the screw rod 541 is threadedly connected to the push-pull frame 53;

[0044] Both ends of the screw rod 541 are rotatably connected with a fixed seat 541a, and the fixed seat 541a is fixedly connected to the body 1; a threaded sleeve 531 is fixed to the end of the push-pull frame 53, and the threaded sleeve 531 is threadedly connected to the screw rod 541, and the screw rod 541 is driven to rotate by the stepping motor 54, and the threaded sleeve 531 is acted on by the thread, and the threaded sleeve 531 drives the push-pull frame 53 to push the piston 52, and the piston 52 can squeeze the liquid in the liquid storage cylinder 51 into the first pressure regulating chamber 4b or the second pressure regulating chamber 4c, or extract the liquid from the first pressure regulating chamber 4b or the second pressure regulating chamber 4c, so as to change the liquid amount in the first pressure regulating chamber 4b or the second pressure regulating chamber 4c.

[0045] The training method of the broken state recognition model is as follows: before training the broken state recognition model, k groups of historical feature data are collected, and the historical feature data include sound frequency and vibration frequency; the broken state of the k groups of historical feature data is numerically labeled, when the broken state is the first level, it is labeled as 1, when the broken state is the second level, it is labeled as 2, and when the broken state is the third level, it is labeled as 3; each group of historical feature data is used as the input of the machine learning model, and the machine learning model uses the predicted labeling of each group of historical feature data as the output, and the actual labeling as the prediction target, wherein the calculation formula for the prediction accuracy is: k =(a k -w k ) 2 , where k is the number of historical feature data, z k is the prediction accuracy, a k is the predicted annotation value corresponding to the kth group of historical feature data, w k is the actual annotation corresponding to the kth group of historical feature data, and minimizing the sum of the prediction accuracies of all annotations is used as the training goal; the machine learning model is trained until the sum of the prediction accuracies reaches a stable state, the training is stopped, and the trained machine learning model is used as a fragmentation state recognition model, and the fragmentation state recognition model is one of a naive Bayes model and a support vector machine model.

[0046] It should be noted that the control module 10 can be a device with a logic control function such as a PLC or a single-chip microcomputer, which is not limited here. The method for adjusting the internal liquid volume of the first pressure regulating chamber 4b and the second pressure regulating chamber 4c according to the adjustment instruction includes: a third acquisition module 9 is fixed on the cylinder 4, and the third acquisition module 9 is provided with two. The two third acquisition modules 9 are respectively installed at both ends of the cylinder 4, and are respectively used to collect the real-time liquid level value 1 and the real-time liquid level value 2 in the first pressure regulating chamber 4b and the second pressure regulating chamber 4c, respectively marked as L1 and L2, L1 and L2 are both greater than or equal to 0. The third acquisition module 9 in this embodiment is a liquid level sensor or an ultrasonic sensor. Equipment that can detect liquid level parameters, such as distance meters, is not limited here (not shown); a pre-established adjustment library is established, and a target liquid level value 1 and a target liquid level value 2 are established according to the crushing state, respectively marked as M1 and M2, and both M1 and M2 are values ​​greater than or equal to 0; if an adjustment instruction is generated, the liquid adjustment mechanism 5 starts to work until L1 is equal to M1 and L2 is equal to M2, and the liquid adjustment mechanism 5 stops working; M1 and M2 are obtained by technicians in this field based on a large number of experiments. For example, when crushing materials of the same material and volume, different M1 and M2 are adjusted, the crushing time and the qualified rate of the crushed materials are recorded, and the best M1 and M2 are selected and written into the adjustment library;

[0047] It is worth mentioning that the purpose of controlling the liquid regulating mechanism 5 is to control the stepper motor 54 to rotate forward or reverse. Therefore, when the liquid regulating mechanism 5 is controlled to work, restriction conditions can be set. For example, when L1 is greater than M1, the stepper motor 54 rotates forward, and when L1 is less than M1, the stepper motor 54 reverses. Similarly, the comparison result of L2 and M2 can also be added with restriction conditions, and a conversion formula can be generated based on the logical relationship between the number of rotations of the stepper motor 54 and the liquid volume. The absolute value of the difference between L1 and M1 or L2 and M2 is directly converted into the number of rotations of the stepper motor 54, and the number of rotations is used as a control signal to control the operation of the stepper motor 54, thereby improving the control efficiency.

[0048] The method for determining whether to generate an adjustment instruction based on a fragmentation state includes: obtaining a prediction mark corresponding to the fragmentation state, generating a first adjustment instruction when the prediction mark is equal to 1, generating a second adjustment instruction when the prediction mark is equal to 2, and generating a third adjustment instruction when the prediction mark is equal to 3;

[0049] When the adjustment library is pre-established, the target liquid level value 1 and the target liquid level value 2 are generated accordingly according to the first adjustment instruction, the second adjustment instruction and the third adjustment instruction, so that the liquid volume in the first pressure regulating chamber 4b and the second pressure regulating chamber 4c changes according to different crushing states, and the impact liner 31 is adjusted to a suitable position to achieve different crushing states, and the control spring 43 is adjusted to a suitable compression distance in different crushing states.

[0050] Embodiment 2

[0051] See also Figure 3As shown, based on the above embodiment, the difference of this embodiment lies in that a separating ring 44 is sleeved on the pulling rod 41, and the separating ring 44 is slidingly and sealingly connected to the cylinder 4, and the separating ring 44 is located between the compression chamber 4a and the second pressure regulating chamber 4c. Since the pulling rod 41 will repeatedly slide in the cylinder 4 when working, if it directly contacts the liquid in the second pressure regulating chamber 4c, the liquid in the second pressure regulating chamber 4c will shake. By having the separating ring 44 interposed between the second pressure regulating chamber 4c and the pulling rod 41, shaking of the liquid in the second pressure regulating chamber 4c can be effectively avoided.

[0052] The exemplary implementation scheme of the present disclosure is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present disclosure, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present disclosure can be combined in various ways without exceeding the protection scope of the present disclosure, which is determined by the attached claims.

Claims

1. An intelligent hydraulic impact crusher, characterized in that: include: A machine body (1) having a rotor (2) and an impact frame (3) rotatably connected therein; A cylinder barrel (4) is rotatably connected to the machine body (1); the cylinder barrel (4) is divided into a first pressure regulating chamber (4b), a compression chamber (4a) and a second pressure regulating chamber (4c) in sequence; a pulling rod (41) and a separation plug (42) are slidably sealed in the compression chamber (4a); a spring (43) is provided between the pulling rod (41) and the separation plug (42); and an end of the pulling rod (41) is hinged to the impact frame (3); A first acquisition module (6) is fixed on the body (1) and is used to acquire the sound frequency of the body (1); A second acquisition module (7) is fixed on the machine body (1) and is used to acquire the vibration frequency of the machine body (1); The recognition module (8) inputs the sound frequency and the vibration frequency into the trained broken state recognition model, and outputs the broken state. The training method of the broken state recognition model is as follows: before training the broken state recognition model, k groups of historical feature data are collected, the historical feature data including the sound frequency and the vibration frequency; the broken state of the k groups of historical feature data are numerically labeled, when the broken state is primary broken, the label is 1, when the broken state is secondary broken, the label is 2, and when the broken state is tertiary broken, the label is 3; each group of historical feature data is used as input of the machine learning model, the machine learning model uses the predicted label of each group of historical feature data as output, the actual label as the prediction target, and minimizes the sum of the prediction accuracy of all labels as the training target; the machine learning model is trained until the sum of the prediction accuracy reaches a stable state, the training is stopped, and the machine learning model obtained by the training is used as the broken state recognition model, the broken state recognition model is one of a naive Bayes model and a support vector machine model; A control module (10) determines whether to generate an adjustment instruction based on the crushing state; The liquid regulating mechanism (5) is fixed on the machine body (1), and the output end of the liquid regulating mechanism (5) is respectively connected to the first pressure regulating chamber (4b) and the second pressure regulating chamber (4c), and the internal liquid volume of the first pressure regulating chamber (4b) and the second pressure regulating chamber (4c) is adjusted according to the adjustment instruction.

2. The intelligent hydraulic impact crusher according to claim 1, characterized in that: The machine body (1) comprises a fixed shell (101) and an inspection shell (102); two ends of the fixed shell (101) are respectively provided with a feed port (101a) and a discharge port (101b); the inspection shell (102) is rotatably connected to the fixed shell (101); both sides of the inspection shell (102) are provided with an inspection cylinder (102a); and two ends of the inspection cylinder (102a) are respectively hinged to the fixed shell (101) and the inspection shell (102).

3. The intelligent hydraulic impact crusher according to claim 2, characterized in that: The rotor (2) is rotatably connected to the fixed shell (101), and plate hammers (21) are evenly fixed on the outer surface of the rotor (2); The impact frame (3) is rotatably connected to the inspection shell (102), and an impact lining plate (31) is fixed to the outer surface of the impact frame (3).

4. The intelligent hydraulic impact crusher according to claim 2, characterized in that: The cylinder barrel (4) is rotatably connected to the inspection shell (102), the pulling rod (41) is slidably and hermetically connected to the inspection shell (102), a separation ring (44) is sleeved on the pulling rod (41), and the separation ring (44) is slidably and hermetically connected to the cylinder barrel (4).

5. The intelligent hydraulic impact crusher according to claim 1, characterized in that: At least two of the liquid regulating mechanisms (5) are provided, and the output ends of the two liquid regulating mechanisms (5) are respectively connected to the first pressure regulating chamber (4b) and the second pressure regulating chamber (4c) through pipelines.

6. The intelligent hydraulic impact crusher according to claim 1, characterized in that: The liquid adjusting mechanism (5) comprises: A liquid storage cylinder (51) is fixed on the machine body (1), is filled with liquid, and is connected to the first pressure regulating chamber (4b) or the second pressure regulating chamber (4c) through a pipeline; A piston (52) is slidably and sealingly connected to the liquid storage cylinder (51) and is used for squeezing liquid; A push-pull frame (53) is slidably and sealingly connected to the liquid storage cylinder (51) and is fixedly connected to the piston (52); The stepper motor (54) is fixed on the machine body (1), and a lead screw (541) is fixed to the output end of the stepper motor (54), and the lead screw (541) is threadedly connected to the push-pull frame (53).

7. The intelligent hydraulic impact crusher according to claim 6, characterized in that: Both ends of the screw rod (541) are rotatably connected to a fixed seat (541a), and the fixed seat (541a) is fixedly connected to the machine body (1); a thread sleeve (531) is fixed to the end of the push-pull frame (53), and the thread sleeve (531) is threadedly connected to the screw rod (541).

8. The intelligent hydraulic impact crusher according to claim 1, characterized in that: The method for adjusting the internal liquid volume of the first pressure regulating chamber (4b) and the second pressure regulating chamber (4c) according to the adjustment instruction comprises: A third acquisition module (9) is fixed on the cylinder (4) and is used to acquire a real-time liquid level value 1 and a real-time liquid level value 2 in the first pressure regulating chamber (4b) and the second pressure regulating chamber (4c), which are marked as L1 and L2 respectively, and L1 and L2 are both values ​​greater than or equal to 0; A regulating library is pre-established, and target liquid level value 1 and target liquid level value 2 are established according to the crushing state, marked as M1 and M2 respectively, and both M1 and M2 are values ​​greater than or equal to 0; If an adjustment instruction is generated, the liquid adjustment mechanism (5) starts to work until L1 is equal to M1 and L2 is equal to M2, and then the liquid adjustment mechanism (5) stops working.

9. The intelligent hydraulic impact crusher according to claim 1, characterized in that: Based on the broken state, the method for determining whether to generate an adjustment instruction includes: A prediction mark corresponding to the broken state is obtained, and when the prediction mark is equal to 1, a first adjustment instruction is generated, when the prediction mark is equal to 2, a second adjustment instruction is generated, and when the prediction mark is equal to 3, a third adjustment instruction is generated.

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