Tamping pickaxe with intelligent state monitoring function

Abstract

The invention discloses a tamping pickaxe with an intelligent state monitoring function, and relates to the technical field of track maintenance, the tamping pickaxe comprises a tamping pickaxe, two eccentric devices are symmetrically arranged in the tamping pickaxe, and handles are fixedly connected to the two sides of the tamping pickaxe; through the arrangement of the amplitude adjusting mechanism, under the tamping contact action of the pickaxe head on a ballast bed, according to the difference of ballast bed materials, compactness and particle sizes of different railway sections, the distance between the weighting blocks is adjusted under the driving of the driving device, so that the vibration frequency of the tamping pickaxe is adjusted, and the vibration frequency is increased by increasing the distance on the soft ballast bed; high-frequency small-amplitude vibration is used for promoting the railway ballasts to be rapidly and compactly rearranged; on a hard ballast bed, the distance is shortened, the vibration frequency is reduced, strong tamping force is provided by means of low-frequency large-amplitude vibration, a hardened layer is broken, it is ensured that different ballast beds can achieve the ideal tamping effect, an operator can rapidly adjust the distance between the weighting blocks in the field operation process by means of a driving screw, the vibration frequency is changed in real time, and rapid response and efficient tamping task completion are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of track maintenance, in particular to a tamping pick with intelligent state monitoring. Background Art

[0002] The lithium battery tamping pick is a small-scale road maintenance machine for railway track bed maintenance. The lithium battery tamping pick is mainly used for tamping slag at turnouts and busy lines during train intervals. It is suitable for tamping railway ballast track beds and other granular materials. The tamping quality is very ideal for tamping operations with a track lift of more than 30 mm.

[0003] In terms of vibration regulation, traditional lithium-ion tamping picks mostly use a fixed eccentric block in combination with motor speed regulation to achieve frequency regulation, but there are obvious deficiencies in amplitude regulation. On the one hand, its amplitude is mainly determined by the fixed parameters of the eccentric block, and it is difficult to flexibly and accurately adjust the amplitude according to the actual conditions of different ballast beds, such as the material, density, and particle size of the ballast. In soft areas of the ballast bed, excessive amplitude may cause excessive disturbance of the ballast and damage the ballast bed structure; while in hard or compacted areas of the ballast bed, too small amplitude cannot achieve the ideal tamping effect, making the tamping operation inefficient and difficult to ensure quality.

[0004] At the same time, due to the lack of an effective buffer structure, the vibration of the existing lithium-ion tamping picks directly affects the pick and the operator during operation. During high-frequency and high-intensity tamping operations, strong vibrations will not only cause a large impact on the mechanical parts of the tamping pick itself, such as the motor and transmission device, accelerating component wear, reducing the service life of the equipment, and increasing maintenance costs and downtime; but will also greatly affect the comfort and operational stability of the operator. Long-term operation can easily cause health problems such as hand fatigue, numbness, and even hand-arm vibration disease, which seriously affects the work enthusiasm and efficiency of the operator.

[0005] Therefore, the present invention proposes a tamping pick with intelligent state monitoring to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a tamping pick with intelligent state monitoring to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: a tamping pick with intelligent state monitoring, comprising: a tamping pick, wherein two eccentric devices are symmetrically arranged in the tamping pick, handles are fixedly connected to both sides of the tamping pick, a pick head is installed in the middle of the lower part of the tamping pick, a pressure sensor is arranged in the pick head, amplitude adjustment mechanisms are arranged in the two eccentric devices, and a vibration reduction feedback mechanism is arranged below the amplitude adjustment mechanism;

[0008] The amplitude adjustment mechanism is used to adjust the vibration frequency to the best value according to different roadbed conditions, so as to achieve efficient tamping;

[0009] The vibration-damping feedback mechanism is used to reduce the vibration intensity fed back from the pick head to the handle during tamping operation.

[0010] Preferably, the amplitude adjustment mechanism includes a component box, which is fixedly connected to the eccentric device, a driving device is fixedly connected to the middle of the inner cavity of the component box, both sides of the driving device are rotatably connected to a cover shell, a movable cavity is opened in the cover shell, and a fixed block is fixedly connected to the side of the movable cavity close to the driving device.

[0011] Preferably, the amplitude adjustment mechanism also includes a driving screw, which is rotatably connected to the middle part of a side of the fixed block away from the driving device, and positioning rods are provided on both sides of the driving screw, and the positioning rods are fixedly connected in the fixed block, and the positioning rod and one end of the driving screw away from the fixed block are fixedly connected to the cover shell, and five eccentric weight blocks are slidably connected to the positioning rod, and the middle part of the eccentric weight block away from the fixed block is rotatably connected to an internal threaded column, and the middle part of the upper surface of the eccentric weight block is rotatably connected to a control rod, and the end of the control rod away from the eccentric weight block is rotatably connected to the fixed block.

[0012] Preferably, the vibration damping feedback mechanism includes a vertical positioning column, which is slidably connected to the inside of the pickaxe head, a shock-absorbing spring is fixedly connected to the middle of the vertical positioning column, a push rod is fixedly connected to the lower surface of the vertical positioning column, an outer ring of the push rod away from the vertical positioning column is slidably sleeved with a hydraulic cavity, three flow holes are opened around the center of the push rod at one end of the push rod close to the hydraulic cavity, and a current-carrying conductor is fixedly connected to the inner wall of the bottom of the hydraulic cavity.

[0013] Preferably, the driving device can be implemented as a bidirectional driving motor, and the fixed block is an L-shaped block. The fixed block has a built-in driving motor and is electrically connected to an external controller.

[0014] Preferably, the eccentric weight block is a semicircular block, and the internal thread column is threadedly connected to the driving screw.

[0015] Preferably, the vertical positioning column is composed of two cylinders, the hydraulic cavity is filled with electrorheological fluid, and the current-carrying conductor is connected to an external power supply device.

[0016] Compared with the prior art, the present invention provides a tamping pick with intelligent state monitoring, which has the following beneficial effects:

[0017] 1. Through the setting of the amplitude adjustment mechanism, under the tamping contact action of the pick head on the ballast bed, according to the differences in ballast bed material, density and particle size in different railway sections, the spacing between the eccentric weights is adjusted under the drive of the driving device, so as to adjust the vibration frequency of the tamping pick. In the case of soft ballast bed, the spacing is increased to increase the vibration frequency, and high-frequency and small-amplitude vibration is used to prompt the ballast to quickly rearrange and compact; in the case of hard ballast bed, the spacing is reduced to reduce the vibration frequency, and low-frequency and large-amplitude vibration is used to provide strong tamping force to break the compacted layer, ensuring that different ballast beds can achieve ideal tamping effects. With the help of the driving screw, the operator can quickly adjust the spacing of the eccentric weights during on-site operations, change the vibration frequency immediately, achieve rapid response, and efficiently complete the tamping task.

[0018] 2. By setting up the amplitude adjustment mechanism, the existing technique of adjusting the vibration frequency of the tamping pick by changing the motor speed is avoided. The change of motor speed directly affects the rotation speed of the eccentric weight block, thereby changing the vibration frequency, resulting in slow response speed, and it is difficult to achieve high-precision frequency control during the adjustment process, and it is difficult to quickly and accurately reach the target vibration frequency. The present structure changes the vibration frequency by adjusting the spacing of the eccentric weight block itself. This adjustment method does not rely on changes in the motor speed, and has relatively low requirements on motor performance and stability. It can also achieve flexible adjustment of the vibration frequency at the optimal operating speed of the motor, so that the motor always runs at the optimal efficiency speed, better avoiding energy waste caused by frequent acceleration and deceleration, accurately adjusting the vibration frequency according to different roadbed conditions, and avoiding ineffective work caused by excessively high or low vibration frequency, thereby reducing the energy consumption of the entire tamping operation process, conforming to the development trend of energy conservation and environmental protection, and reducing the operating cost of railway maintenance.

[0019] 3. Through the setting of the vibration reduction feedback mechanism, when the tamping intensity is large, the pressure sensor is connected to the external control device to control the energization of the energized conductor, and then the electrorheological fluid of the device in the hydraulic cavity is solidified to improve the stiffness, so as to quickly convert the vibration energy into its own elastic potential energy and internal friction heat energy. When the shock-absorbing spring is contracted and restored, the solidified electrorheological fluid is regarded as a rigid medium to block and disperse the transmission path of high-frequency and large-scale vibrations, reduce the transmission of vibration to the equipment and the hands of operators during tamping work, reduce vibration hazards, achieve efficient shock absorption, and flexibly adjust the state of the electrorheological fluid according to the actual amplitude, comprehensively optimize the performance of the tamping pick under various working conditions, and improve the overall adaptability and work efficiency of the equipment. Furthermore, the electrorheological fluid can effectively suppress large-scale vibrations when used for vibration reduction, prevent unnecessary deviation and shaking of the pick head during vibration, and enable the pick head to always act vertically and accurately on the ballast bed, ensuring that the tamping force is uniform and the depth is consistent each time, which is helpful to achieve a tight and uniform arrangement of the ballast bed, improve the overall stability and carrying capacity of the ballast bed, and ensure the safety and stability of railway driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is the overall partial structure diagram of the present invention;

[0022] Figure 3 This is an internal structural diagram of the eccentric device of the present invention;

[0023] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 This is a structural diagram of the local amplitude adjustment mechanism of the present invention;

[0025] Figure 6 For the present invention Figure 5 The structure diagram at B is enlarged;

[0026] Figure 7 This is a structural diagram of the vibration reduction feedback mechanism of the present invention;

[0027] Figure 8 It is an internal structural diagram of the local vibration reduction feedback mechanism of the present invention.

[0028] In the figure:

[0029] 1. Tamping pick; 11. Eccentric device; 12. Handle; 13. Pick head;

[0030] 2. Amplitude adjustment mechanism; 21. Composition box; 22. Driving device; 23. Cover; 24. Active cavity; 25. Fixed block; 26. Positioning rod; 27. Driving screw; 28. Weight block; 29. ​​Internal threaded column; 210. Control rod;

[0031] 3. Vibration reduction feedback mechanism; 31. Vertical positioning column; 32. Shock-absorbing spring; 33. Push rod; 34. Flow hole; 35. Hydraulic cavity; 36. Current-carrying conductor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0034] Example

[0035] Please refer to Figures 1 to 6 As shown:

[0036] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a tamping pick with intelligent state monitoring, including: a tamping pick 1, two eccentric devices 11 are symmetrically arranged in the tamping pick 1, handles 12 are fixedly connected to both sides of the tamping pick 1, a pick head 13 is installed in the middle of the lower part of the tamping pick 1, a pressure sensor is installed in the pick head 13, amplitude adjustment mechanisms 2 are arranged in the two eccentric devices 11, and a vibration reduction feedback mechanism 3 is arranged below the amplitude adjustment mechanism 2;

[0037] The amplitude adjustment mechanism 2 is used to adjust to the optimal vibration frequency according to different roadbed conditions to achieve efficient tamping. The amplitude adjustment mechanism 2 includes a component box 21, which is fixedly connected to the eccentric device 11. A driving device 22 is fixedly connected to the middle of the inner cavity of the component box 21. The driving device 22 can be implemented as a bidirectional driving motor. Both sides of the driving device 22 are rotatably connected to a cover shell 23. An active cavity 24 is opened in the cover shell 23. A fixed block 25 is fixedly connected to the side of the active cavity 24 close to the driving device 22. The fixed block 25 is an L-shaped block. The fixed block 25 has a built-in driving motor and is electrically connected to an external controller.

[0038] The amplitude adjustment mechanism 2 also includes a driving screw 27, which is mainly used to rotate and drive the internal thread column 29 to move so as to control the spacing adjustment between the multiple eccentric weights 28. The driving screw 27 is rotatably connected to the middle part of the side of the fixed block 25 away from the driving device 22. Positioning rods 26 are arranged on both sides of the driving screw 27. The positioning rods 26 are fixedly connected to the fixed block 25. The positioning rods 26 and the ends of the driving screw 27 away from the fixed block 25 are fixedly connected to the cover 23. Five eccentric weights 28 are slidably connected to the positioning rods 26. The eccentric weights 28 are mainly used to adjust the spacing to adjust the overall moment of inertia. The eccentric weights 28 are semicircular blocks. The middle part of the eccentric weights 28 away from the fixed block 25 is rotatably connected with the internal thread column 29. The internal thread column 29 is threadedly connected to the driving screw 27. The middle part of the upper surface of the eccentric weights 28 is rotatably connected with a control rod 210. The end of the control rod 210 away from the eccentric weights 28 is rotatably connected to the fixed block 25.

[0039] For further examples, please refer to Figures 7 and 8 As shown:

[0040] The vibration reduction feedback mechanism 3 is used to reduce the vibration intensity fed back to the handle 12 by the pick head 13 during the tamping operation. The vibration reduction feedback mechanism 3 includes a vertical positioning column 31, which is slidably connected to the inside of the pick head 13. The vertical positioning column 31 is composed of two cylinders. A shock absorbing spring 32 is fixedly connected to the middle of the vertical positioning column 31. The shock absorbing spring 32 is mainly used for buffering and resetting the push rod 33. A push rod 33 is fixedly connected to the lower surface of the vertical positioning column 31. The push rod 33 is mainly used to drive the hydraulic pressure through the flow hole 34 when pressing down and resetting. Electrorheological fluid flows in the cavity 35. The outer ring of the end of the push rod 33 away from the vertical positioning column 31 is slidably sleeved with the hydraulic cavity 35. The hydraulic cavity 35 is equipped with electrorheological fluid. The end of the push rod 33 close to the hydraulic cavity 35 is provided with three flow holes 34 around the center of the circle. The inner wall of the bottom of the hydraulic cavity 35 is fixedly connected with an electric conductor 36. The electric conductor 36 is mainly used for energizing and curing when the amplitude is large, and then converting the vibration energy into its own elastic potential energy and internal friction heat energy to achieve a shock absorption effect. The electric conductor 36 is connected to an external power supply device.

[0041] Everything in the above example works like this:

[0042] The following is the working process of the amplitude adjustment mechanism 2 for adjusting the optimal vibration frequency according to different roadbed conditions to achieve efficient tamping:

[0043] When in use, start the tamping pick 1, observe whether its vibration is normal, whether there is abnormal noise when the motor is running, and whether all parts are running smoothly. Then the operator stands at a suitable position outside the track, holds the amplitude adjustment mechanism 2 on both sides of the tamping pick 1 with both hands, and aims the pick head 13 at the ballast of the track bed. Start the tamping pick 1 to make its vibration act on the ballast. When the pick head 13 is tamping, the tamping vibration intensity is fed back through the pressure sensor in the pick head 13, and then the pressure is fed back to the external controller under the action of the external controller;

[0044] If the tamping intensity is large, the built-in power supply of the fixed block 25 is started to drive the driving screw 27 to rotate forward. When the driving screw 27 rotates forward, the rotation of the driving screw 27 drives the internal threaded column 29 connected to the eccentric block 28 to gradually move toward the end away from the fixed block 25 along the forward rotation direction of the internal threaded column 29, and the movement of the internal threaded column 29 synchronously drives the eccentric block 28 to move in the direction away from the fixed block 25. At the same time, through the connection of multiple control rods 210 between the eccentric blocks 28, when the eccentric blocks 28 on the internal threaded column 29 move, the multiple eccentric blocks 28 are driven at the same time through the connection of the control rods 210 to move horizontally on the positioning rod 26, thereby pulling the distance between the multiple eccentric blocks 28 apart, and the distance between the eccentric blocks 28 is expanded. Since the eccentric blocks 28 of the tamping pick 1 will generate centrifugal force when rotating, the centrifugal force is the key factor causing the tamping pick 1 to vibrate and thus achieve the tamping effect. According to the centrifugal force formula F = mω2r, where F is the centrifugal force, m is the mass of the eccentric block, ω is the angular velocity, and r can be understood as the distance from the center of mass of the eccentric block to the center of rotation, which is approximately equivalent to the eccentric block spacing. When the motor speed in the drive device 22, i.e., the angular velocity ω and the mass m of the eccentric block are relatively fixed, the larger the eccentric block spacing r, the greater the centrifugal force F. A greater centrifugal force will increase the vibration intensity of the tamping pick 1, thereby being able to produce a greater tamping force and achieve a stronger tamping effect, which corresponds to a greater tamping strength. Based on demand, the interval between the eccentric weights 28 is adjusted under the drive of the built-in power supply of the fixed block 25 to provide a tamping effect of greater strength. Otherwise, the built-in power supply of the fixed block 25 drives the internal threaded column 29 to rotate in the opposite direction, thereby controlling the spacing between the eccentric weights 28 to decrease and reduce the tamping strength.

[0045] Through the setting of the amplitude adjustment mechanism 2, under the tamping contact action of the pick head 13 on the ballast bed, according to the differences in the ballast bed material, density and particle size of different railway sections, the spacing between the eccentric weights 28 is adjusted under the drive of the driving device 22, so as to adjust the vibration frequency of the tamping pick. On a soft ballast bed, the spacing is increased to increase the vibration frequency, and high-frequency and small-amplitude vibrations are used to prompt the ballast to quickly rearrange and compact; on a hard ballast bed, the spacing is reduced to reduce the vibration frequency, and low-frequency and large-amplitude vibrations are used to provide a strong tamping force to break up the compacted layer, ensuring that different ballast beds can achieve the ideal tamping effect. With the help of the driving screw 27, the operator can quickly adjust the spacing of the eccentric weights 28 during on-site operations, instantly change the vibration frequency, achieve rapid response, and efficiently complete the tamping task.

[0046] Furthermore, by setting up the amplitude adjustment mechanism 2, the prior art method of adjusting the vibration frequency of the tamping pick by changing the motor speed is avoided. The change in motor speed directly affects the rotation speed of the eccentric weight 28, thereby changing the vibration frequency, resulting in a slow response speed, and it is difficult to achieve high-precision frequency control during the adjustment process, and it is difficult to quickly and accurately reach the target vibration frequency. The present structure changes the vibration frequency by adjusting the spacing of the eccentric weight 28 itself. This adjustment method does not rely on changes in the motor speed, and has relatively low requirements on motor performance and stability. It can also achieve flexible adjustment of the vibration frequency at the optimal operating speed of the motor, so that the motor always runs at the optimal efficiency speed, better avoiding energy waste caused by frequent acceleration and deceleration, and accurately adjusting the vibration frequency according to different roadbed conditions. It also avoids ineffective work caused by excessively high or low vibration frequencies, thereby reducing the energy consumption of the entire tamping operation process, conforming to the development trend of energy conservation and environmental protection, and reducing the operating cost of railway maintenance.

[0047] Please refer to the above working process Figures 1 to 6 .

[0048] The following is the working process of the vibration damping feedback mechanism 3 for reducing the vibration intensity fed back from the pick head 13 to the handle 12 during the tamping operation:

[0049] During use, when the pick 13 is performing tamping work, the vibration force transmitted by the contact between the pick 13 and the roadbed is transmitted to the shock absorbing spring 32 to shrink the shock absorbing spring 32, and at the same time, the push rod 33 is slidably inserted into the hydraulic cavity 35. Under the action of the flow hole 34, the electrorheological fluid in the hydraulic cavity 35 circulates in the hydraulic cavity 35. If the tamping intensity is large, it means that the vibration energy is high and the impact force is strong. At this time, the current-carrying conductor 36 is energized to solidify the electrorheological fluid, and its stiffness will be greatly improved. It can quickly convert the vibration energy into its own elastic potential energy and internal friction heat energy. Then, when the shock absorbing spring 32 shrinks and performs a recovery action, the solidified electrorheological fluid can be approximately regarded as a rigid medium, which can effectively block and disperse the transmission path of high-frequency and large-scale vibrations, like a solid barrier, making it difficult for the vibration to pass through the hydraulic cavity 35 to other parts of the equipment and the hands of the operator, thereby significantly reducing the vibration damage and achieving efficient shock absorption.

[0050] On the contrary, even if the amplitude is small, the continuous vibration may interfere with the stable operation of the equipment and the operator's working accuracy. After the electrorheological fluid is energized and solidified, it can still increase the internal damping of the hydraulic cavity 35. This damping effect can consume vibration energy and suppress the accumulation and amplification of small vibrations. At the same time, its certain rigidity after solidification can stabilize the working state of the hydraulic rod, reduce the displacement deviation of components caused by small vibrations, and ensure that the tamping pick 1 can operate smoothly and accurately under small amplitudes. It also has the effect of shock absorption and optimizing working performance.

[0051] By setting the vibration reduction feedback mechanism 3, when the tamping intensity is large, the pressure sensor is connected to the external control device to control the current conductor 36 to be energized, thereby solidifying the electrorheological fluid installed in the hydraulic cavity 35 to increase the rigidity, thereby quickly converting the vibration energy into its own elastic potential energy and internal friction heat energy. When the shock-absorbing spring 32 shrinks and recovers, the solidified electrorheological fluid is regarded as a rigid medium to block and disperse the transmission path of high-frequency and large-scale vibrations, thereby reducing the vibration transmitted to the equipment and the operator's hands during tamping work, reducing the vibration damage, and achieving It can realize efficient shock absorption and flexibly adjust the state of electrorheological fluid according to the actual amplitude, comprehensively optimize the performance of the tamping pick under various working conditions, improve the overall adaptability and working efficiency of the equipment, further, the electrorheological fluid can effectively suppress large vibrations by acting on vibration reduction, prevent unnecessary deviation and shaking of the pick head 13 during vibration, and enable the pick head 13 to always act vertically and accurately on the track bed ballast, ensuring uniform tamping force and consistent depth each time, which is helpful to achieve close and uniform arrangement of the track bed ballast, improve the overall stability and carrying capacity of the track bed, and ensure the safety and stability of railway driving.

[0052] Please refer to the above working process Figures 7 and 8 .

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tamping pick with intelligent condition monitoring, comprising: A tamping pick (1), wherein two eccentric devices (11) are symmetrically arranged in the tamping pick (1), handles (12) are fixedly connected to both sides of the tamping pick (1), a pick head (13) is installed in the middle of the lower part of the tamping pick (1), a pressure sensor is installed in the pick head (13), and an amplitude adjustment mechanism (2) is arranged in the two eccentric devices (11), characterized in that a vibration reduction feedback mechanism (3) is arranged below the amplitude adjustment mechanism (2); The amplitude adjustment mechanism (2) is used to adjust the vibration frequency to the optimum according to different roadbed conditions, thereby achieving efficient tamping; The vibration damping feedback mechanism (3) is used to reduce the vibration intensity fed back from the pick head (13) to the handle (12) during tamping operation.

2. A tamping pick with intelligent condition monitoring according to claim 1, characterized in that: The amplitude adjustment mechanism (2) comprises a component box (21), the component box (21) is fixedly connected to the eccentric device (11), a driving device (22) is fixedly connected to the middle of the inner cavity of the component box (21), both sides of the driving device (22) are rotatably connected to a cover shell (23), a movable cavity (24) is provided in the cover shell (23), and a fixed block (25) is fixedly connected to the side of the movable cavity (24) close to the driving device (22).

3. A tamping pick with intelligent condition monitoring according to claim 2, characterized in that: The amplitude adjustment mechanism (2) also includes a driving screw (27), the driving screw (27) is rotatably connected to the middle part of a side of the fixed block (25) away from the driving device (22), positioning rods (26) are arranged on both sides of the driving screw (27), the positioning rods (26) are fixedly connected in the fixed block (25), the positioning rods (26) and the ends of the driving screw (27) away from the fixed block (25) are fixedly connected to the cover (23), five eccentric weights (28) are slidably connected to the positioning rod (26), the middle part of the eccentric weight (28) away from the fixed block (25) is rotatably connected to an internal threaded column (29), the middle part of the upper surface of the eccentric weight (28) is rotatably connected to a control rod (210), and the end of the control rod (210) away from the eccentric weight (28) is rotatably connected to the fixed block (25).

4. The tamping pick with intelligent condition monitoring according to claim 1, characterized in that: The vibration damping feedback mechanism (3) includes a vertical positioning column (31), the vertical positioning column (31) is slidably connected to the inside of the pickaxe head (13), a shock absorbing spring (32) is fixedly connected to the middle of the vertical positioning column (31), a push rod (33) is fixedly connected to the lower surface of the vertical positioning column (31), the outer ring of the end of the push rod (33) away from the vertical positioning column (31) is slidably sleeved with a hydraulic cavity (35), and the end of the push rod (33) close to the hydraulic cavity (35) is provided with three flow holes (34) around the center of the circle, and a current-carrying conductor (36) is fixedly connected to the inner wall of the bottom of the hydraulic cavity (35).

5. The tamping pick with intelligent condition monitoring according to claim 2, characterized in that: The driving device (22) is a bidirectional driving motor, the fixing block (25) is an L-shaped block, the fixing block (25) has a built-in driving motor and is electrically connected to an external controller.

6. The tamping pick with intelligent condition monitoring according to claim 3, characterized in that: The eccentric weight block (28) is a semicircular block, and the internal thread column (29) is threadedly connected to the driving screw rod (27).

7. The tamping pick with intelligent condition monitoring according to claim 4, characterized in that: The vertical positioning column (31) is composed of two cylinders, the hydraulic cavity (35) is provided with electrorheological fluid, and the current-carrying conductor (36) is connected to an external power supply device.

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