A dynamic compactor for collapsible loess subgrade settlement treatment

Abstract

The application relates to the technical field of dynamic compaction machines, in particular to a dynamic compaction machine for treating settlement of collapsible loess roadbeds, which comprises a mounting plate, a rack is fixedly installed on one side of the top of the mounting plate, a rope winding machine is fixedly connected to one side of the top of the rack, two mounting frames are fixedly installed on the other side of the top of the rack, a hoist arm is hingedly connected between the bottoms of the two mounting frames, and a rammer is hung at one end of the hoist arm. When the inclination angle of the hoist arm is relatively large, the detection value is relatively large, so the wedge and the inclined groove slide through the retraction of the second cylinder, and after the height locking of the lifting plate is lost, the lifting plate descends by a certain height along the sliding rail through the sliding block, the distance between the steering ball and the first connecting rod is increased, the second spring stroke of a certain length is effectively released, the second spring becomes an unblockable state, the stroke can be dynamically adjusted in real time, a buffer basis is provided for the hoist arm, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of dynamic compaction machine technology, specifically a dynamic compaction machine for treating settlement of collapsible loess roadbeds. Background Technology

[0002] During the normal lifting of the rammer or at the moment of sudden release, the truss-type boom structure of the dynamic compaction machine may experience dangerous local buckling deformation, and in extreme cases, even lead to a complete collapse. The root cause lies in the complete compression of the anti-tilt bar spring, a critical component. The core function of the anti-tilt bar in the system is to provide lateral restraint for the truss-type boom, preventing excessive backward tilting due to uneven stress or center of gravity shift during operation. However, during the lifting of the rammer, if the lifting load exceeds the design limit, or during large-amplitude operations, changes in the boom's tilt angle may cause a sharp increase in pressure on the anti-tilt bar, compressing the spring to its limit stroke, reaching a "compressed" state. In this state, the spring's buffering and elastic deformation capabilities are completely lost, and its mechanical behavior transforms from an elastic load-bearing body to a near-rigid connecting body.

[0003] It is precisely because this high-intensity, instantaneous impact thrust acts on the structure without any buffer when the spring is fully compressed that key load-bearing components such as the main chord of the boom experience localized yielding or even fracture, thereby inducing a chain reaction of instability and damage to the entire boom system. In order to fundamentally eliminate such safety risks and optimize the structural stability and operational reliability of the dynamic compaction machine, we have specifically designed and proposed a dynamic compaction machine for the treatment of settlement in collapsible loess subgrades. Summary of the Invention

[0004] The purpose of this invention is to provide a dynamic compaction machine for treating settlement of collapsible loess roadbeds, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dynamic compaction machine for treating settlement of collapsible loess roadbed, comprising an installation plate, a frame fixedly installed on one side of the top of the installation plate, a rope winding machine fixedly connected to one side of the top of the frame, two mounting frames fixedly installed on the other side of the top of the frame, a boom hinged between the bottoms of the two mounting frames, a tamping hammer suspended at one end of the boom, a first connecting rod rotatably connected to both sides of the boom, a second spring fixedly connected to one end of the first connecting rod, a steering ball fixedly connected to one end of the second spring, an anchor rod slidably connected to the inner ring of the steering ball, the anchor rod and the first connecting rod slidably connected, slide rails fixedly installed on both sides of the middle of the installation plate, a slider slidably connected to the slide rails, a lifting plate fixedly installed at the middle of the bottom of the slider, a groove opened on one side of the lifting plate, a second cylinder fixedly installed on one side of the mounting frame, a wedge fixedly installed at one end of the second cylinder, the wedge and the groove slidably connected, and a pressure signal device fixedly installed on the steering ball.

[0006] Preferably, the slide rail includes a slide plate fixed to the top of the mounting plate and a lifting plate fixed to the side of the mounting frame. A pressure alarm is fixedly installed on the outer side of the lifting plate, and the pressure alarm and the pressure signal are electrically connected.

[0007] Preferably, one end of the first connecting rod has an explosion-proof cavity, a first spring is fixedly connected inside the explosion-proof cavity, one end of the anchor rod extends into the explosion-proof cavity, an explosion-proof plate is fixedly installed at one end of the anchor rod, and the explosion-proof plate and the explosion-proof cavity are slidably connected.

[0008] Preferably, the steering ball and the slider are rotatably connected, and a protective sleeve is fixedly connected to one side of the bottom of the slider. The protective sleeve is semi-circular in shape, and the center line of the steering ball coincides with the center point of the arc of the protective sleeve on the same baseline.

[0009] Preferably, a second steel rope is connected to the middle of the rope winding machine, and a first steel rope is connected to both ends of the rope winding machine by means of coiling. One end of each of the first steel rope and the second steel rope is connected to the top of the tamping hammer.

[0010] Preferably, a fixing rod is fixedly installed on both sides of one end of the mounting plate. A second connecting rod is rotatably connected to one end of the fixing rod. A guide rail is provided at one end of the second connecting rod, and an insert rail is provided at the other end of the second connecting rod. The second connecting rod is rotatably connected to the boom through the insert rail. A drive rod is slidably connected to the guide rail. A turntable is rotatably connected to the inner side of the slide plate. The drive rod and the turntable are connected together by a steel wire rope. A first cylinder is fixedly connected to the bottom of one end of the second connecting rod, and a spike is fixedly installed at the bottom of the first cylinder.

[0011] Preferably, the turntable is provided with an extrusion rail, and the bottom of both sides of the extrusion rail is provided with an inclined surface. The bottom of the lifting plate extends to the extrusion rail, and a locking strip is fixedly installed on the lifting plate. The locking strip and the extrusion rail are slidably connected, and a counterweight is fixedly installed on the turntable.

[0012] Preferably, one end of the extrusion rail is close to the edge of the turntable, and the other end is close to the inner ring of the turntable. An inner ring is rotatably connected to the inner side of the slide rail. A limit rod is fixedly connected to the surface of the inner ring. The limit rod and the lifting plate are detachably connected. Both the inner ring of the turntable and the outer ring of the inner ring are provided with teeth. A pair of centering rods are fixedly installed on the inner side of the slide rail. A transmission gear is rotatably connected to each centering rod. The inner ring is engaged with the turntable through the transmission gear.

[0013] Preferably, the inner ring has multiple embedded slots at equal intervals, and a third cylinder is fixed inside the turntable, with the axis of the third cylinder perpendicular to the axis of the inner ring.

[0014] Preferably, the lifting plate and the turntable are slidably connected, and the projections of the lifting plate and the counterweight in the vertical direction coincide in the initial state. The inner ring of the extrusion rail is made of an anti-slip material.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this invention, when the tilt angle of the boom is relatively large, the detection value is relatively large. Therefore, by retracting the second cylinder, the wedge block and the inclined groove slide. After the lifting plate loses its height lock, the lifting plate descends a certain height along the slide rail by the slider, increasing the distance between the steering ball and the first connecting rod, thereby effectively releasing a certain length of the second spring stroke. Therefore, the second spring becomes non-lockable and can dynamically adjust the stroke in real time, providing a buffer for the boom and improving the equipment life.

[0017] 2. In this invention, when the boom tilt angle rotates to its limit, the turntable drives the compression rail to rotate, increasing the compression depth of the lifting plate against the compression rail. This keeps the second spring in a semi-compressed state. Thanks to the continuous descent of the lifting plate, the second spring has the advantage of extension, improving the overall applicability of the device. Therefore, when the first connecting rod tilt angle rotates to its limit and during routine tilt angle adjustment, the device has an independent component for adjusting the compression depth of the second spring. This reduces the load on the wedge and turntable. When the pressure of the second spring is low, the wedge can fully bear the load, while the turntable does not need to continuously bear the pressure, reducing the fatigue strength of the components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the first connecting rod structure of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point B;

[0021] Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A;

[0022] Figure 5 This is a schematic diagram of the turntable and lifting plate structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the protective sleeve structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the planar structure of the turntable and lifting plate of the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the turntable structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the movement of the turntable of the present invention;

[0027] Figure 10 This is a schematic diagram of the boom structure of the present invention;

[0028] Figure 11 This is a schematic diagram of the first connecting rod, slider, and lifting plate structure of the present invention;

[0029] Figure 12 This is a schematic diagram of the side cross-sectional structure of the turntable of the present invention;

[0030] Figure 13 This is a schematic diagram of the inclined plane structure of the present invention.

[0031] In the diagram: 1-Mounting plate; 2-Frame; 3-Rope winding machine; 4-Mounting bracket; 5-Boom; 6-Rammer; 7-First steel rope; 8-Second steel rope; 9-First connecting rod; 901-First spring; 10-Second connecting rod; 11-Fixing rod; 12-Drive rod; 13-Guide rail; 14-First cylinder; 15-Barb; 16-Slide rail; 17-Anchor bolt; 18-Steering ball; 19-Pressure signal device; 20- 21-Second spring; 22-Explosion-proof plate; 23-Slider; 24-Protective sleeve; 25-Turntable; 26-Counterweight; 27-Extrusion rail; 28-Inclined surface; 29-Inner ring; 30-Limit rod; 31-Centering rod; 32-Transmission gear; 33-Second cylinder; 34-Wedge block; 35-Pressure alarm; 36-Third cylinder; 37-Clamping strip; 38-Inner groove. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-13This invention provides a technical solution: a dynamic compaction machine for treating settlement of collapsible loess roadbed, comprising a mounting plate 1, a frame 2 fixedly mounted on one side of the top of the mounting plate 1, a rope winding machine 3 fixedly connected to one side of the top of the frame 2, two mounting brackets 4 fixedly mounted on the other side of the top of the frame 2, a boom 5 hinged between the bottoms of the two mounting brackets 4, a hammer 6 suspended at one end of the boom 5, a first connecting rod 9 rotatably connected to both sides of the boom 5, a second spring 20 fixedly connected to one end of the first connecting rod 9, a steering ball 18 fixedly connected to one end of the second spring 20, an anchor rod 17 slidably connected to the inner ring of the steering ball 18, the anchor rod 17 and the first connecting rod 9 slidably connected, and slide rails 16 fixedly mounted on both sides of the middle of the mounting plate 1, with sliders 22 slidably connected to the slide rails 16, the bottom of the sliders 22... A lifting plate 27 is fixedly installed in the middle of the machine. A sloping groove 28 is opened on one side of the lifting plate 27. A second cylinder 33 is fixedly installed on one side of the mounting frame 4. A wedge block 34 is fixedly installed at one end of the second cylinder 33. The wedge block 34 and the sloping groove 28 are slidably connected. A pressure signal device 19 is fixedly installed on the steering ball 18. The boom 5 is driven by the hydraulic rod of the machine body for angle adjustment. The mounting plate 1 is installed on the main frame of the crane equipment. Then, by extending the boom 5, the hammer 6 is placed above the tamping point. The connection between the hammer 6 and the boom 5 adopts the existing detachable method, specifically a hydraulic unlocking structure. The working method of the hammer 6 will not be described in detail. During normal operation of the equipment, it is usually necessary to adjust the angle between the boom 5 and the mounting frame 4 to maintain a precise tamping position. As the boom 5 rotates, if the angle between the boom 5 and the ground gradually increases, the boom 5 will cause the first connecting rod 9 to tilt backward. Therefore, the first connecting rod 9 will cause the anchor rod 17 to rotate on the steering ball 18. During the rotation of the steering ball 18, the first connecting rod 9 will compress the second spring 20 as it moves. The second spring 20 is the main buffer component. When the angle of inclination of the first connecting rod 9 increases, the compression depth of the second spring 20 increases. Therefore, the second spring 20 may be more prone to damage when its yield strength is at a medium value (1500MPa). Also, because the compression space of the rear section of the second spring 20 is relatively small, when the second spring 20 exerts pressure on the steering ball 18... After the force is applied, the steering ball 18 receives the pressure, and the value is identified by the pressure signal device 19. The second spring 20 needs to undergo a pressure test before leaving the factory, and the value of its semi-compressed state is recorded. After the pressure signal device 19 records the pressure, if the pressure data value is relatively small or exceeds the intermediate value, the stroke of the extension rod of the second cylinder 33 can be controlled in the background. When the tilt angle of the boom 5 is relatively large, the detected value is relatively large, so the second cylinder 33 retracts, causing the wedge block 34 and the inclined groove 28 to slide. After the lifting plate 27 loses its height lock, the second spring 20 releases a certain stroke. The stroke released by the second spring 20 can drive the lifting plate 27 to descend a certain height along the slide rail 16 via the slider 22.Increasing the distance between the steering ball 18 and the first connecting rod 9 effectively prevents the second spring 20 from locking after releasing a certain length of its stroke. This allows for real-time dynamic adjustment of the stroke, providing a buffer for the boom 5 and extending the equipment's lifespan. If the pressure signal 19 returns a low value, the second cylinder 33 can be extended to deepen the locking depth of the second spring 20, allowing it to operate ideally. More detailed operating procedures are described below:

[0034] Furthermore, the slide rail 16 includes a sluice plate fixed to the top of the mounting plate 1 and a lifting plate fixed to the side of the mounting bracket 4. A pressure alarm 35 is fixedly installed on the outer side of the lifting plate. The pressure alarm 35 and the pressure signal 19 are electrically connected. The slide rail 16 is composed of the sluice plate and the lifting plate, and works as two separate systems. Therefore, it can work independently, which facilitates the installation of each component. When the pressure signal 19 value is too high, the pressure alarm 35 will generate an alarm to provide a warning.

[0035] Furthermore, one end of the first connecting rod 9 has an explosion-proof cavity, inside which a first spring 901 is fixedly connected. One end of the anchor rod 17 extends into the explosion-proof cavity, and an explosion-proof plate 21 is fixedly installed at one end of the anchor rod 17. The explosion-proof plate 21 and the explosion-proof cavity are slidably connected. When the second spring 20 is subjected to external force and is damaged, the first connecting rod 9 will drive the anchor rod 17 to move downward. After the explosion-proof plate 21 at one end of the anchor rod 17 contacts the first spring 901, the first spring 901 will then buffer the first connecting rod 9. Therefore, the first spring 901 is the second insurance for protecting the device. When the second spring 20 is fatigued due to long-term use and cannot work effectively, the first spring 901 can effectively prevent the device from being impacted by vibration.

[0036] Furthermore, the steering ball 18 and the slider 22 are rotatably connected. A protective sleeve 23 is fixedly connected to one side of the bottom of the slider 22. The protective sleeve 23 is semi-circular in shape. The axis of the steering ball 18 coincides with the center point of the arc of the protective sleeve 23 on the same baseline. A second steel rope 8 is connected to the middle of the rope winding machine 3. Both ends of the rope winding machine 3 are connected to the first steel rope 7 by winding. One end of the first steel rope 7 and the second steel rope 8 are connected to the top of the ramming hammer 6. There are three first steel ropes and two steel ropes 8 in total, which gives the ramming hammer 6 a certain balance. The other end of the anchor rod 17 is located inside the protective sleeve 23. When the second spring 20 is damaged by force, the end of the anchor rod 17 contacts the protective sleeve 23, so that the protective sleeve 23 provides impact protection for the anchor rod 17. At the same time, after the anchor rod 17 contacts the protective sleeve 23, the explosion-proof plate 21 can contact the first spring 901, so that the first spring 901 is compressed.

[0037] Furthermore, fixing rods 11 are fixedly installed on both sides of one end of the mounting plate 1. A second connecting rod 10 is rotatably connected to one end of the fixing rod 11. A guide rail 13 is provided at one end of the second connecting rod 10, and an insert rail is provided at the other end of the second connecting rod 10. The second connecting rod 10 is rotatably connected to the boom 5 through the insert rail. A drive rod 12 is slidably connected to the guide rail 13. A turntable 24 is rotatably connected to the inner side of the slide plate. The drive rod 12 and the turntable 24 are connected together by a steel wire rope. A first cylinder 14 is fixedly connected to the bottom of one end of the second connecting rod 10. A spike 15 is fixedly installed at the bottom of the first cylinder 14. When the first connecting rod 9 moves at an elevation angle, the bottom of the second connecting rod 10 moves away from the mounting plate 1 and moves axially at the end of the fixing rod 11 under the restriction of the fixing rod 11. After the tilt angle of the first connecting rod 9 is fixed, the first cylinder 14 is driven to move downward, so that the spike 15 penetrates into the ground to support and improve the stability of the entire boom 5.

[0038] Furthermore, a pressing rail 26 is provided on the turntable 24, and inclined surfaces 2601 are provided on the bottom of both sides of the pressing rail 26. The bottom of the lifting plate 27 extends to the pressing rail 26, and a locking strip 37 is fixedly installed on the lifting plate 27. The locking strip 37 and the pressing rail 26 are slidably connected. A counterweight 25 is fixedly installed on the turntable 24, and the lifting plate 27 and the turntable 24 are slidably connected. In the initial state, the projections of the lifting plate 27 and the counterweight 25 in the vertical direction coincide. The inner ring of the pressing rail 26 is made of anti-slip material. In summary, if the signal transmitted by the pressure signal device 19 is too large, the tilt angle of the first connecting rod 9 will be too large, and the second spring 20 will be compressed. At this time, the second cylinder 33 will be driven to retract, thus... Wedge 34 and inclined groove 28 separate, causing lifting plate 27 to descend again, which in turn drives first connecting rod 9 to rotate to change the tilt angle, causing second connecting rod 10 to move towards the area below hammer 6 at the front of the equipment, driving drive rod 12 to move (during this process, as the tilt angle of boom 5 increases, boom 5 drives second connecting rod 10 to rotate at the end of fixed rod 11 through the through rail, allowing second connecting rod 10 to move along the tangent direction of boom 5's rotation path, causing second connecting rod 10 to rotate counterclockwise, so that drive rod 12 and the top of guide rail 13 are in abutting state, therefore drive rod 12 is under force, and steel cable gradually tightens to generate tension). During the movement of drive rod 12, the turntable 24 is moved by the action of steel wire rope. Figure 9 For example, the rotating disc 24 rotates counterclockwise, causing the bottom of the lifting plate 27 to move on the extrusion rail 26. As the turntable 24 rotates, the position of the extrusion rail 26 also changes, as shown in the attached diagram. Figure 9As shown, when the position of the extrusion rail 26 changes, the end of the extrusion rail 26 and its inclination relative to the initial position also change. Although the lifting plate 27 is still descending, during the rotation of the extrusion rail 26, due to the increased height of its inner arc, the contact force between the extrusion rail 26 and the lifting plate 27 inevitably increases. Therefore, when the boom 5 rotates to its limit, the turntable 24 drives the extrusion rail 26 to rotate, increasing the extrusion depth between the lifting plate 27 and the extrusion rail 26, preventing further extrusion. This value (i.e., the extrusion depth) is adjusted and debugged during production by selecting a suitable second spring. After the spring 20 (strength of 2800MPa) is installed, the second spring 20 is kept in a semi-compressed state. Thanks to the continuous descent of the lifting plate 27, the second spring 20 has the advantage of extension, which improves the overall applicability of the device. Therefore, the device has an independent component for adjusting the compression depth of the second spring 20 when the first connecting rod 9 rotates to its limit and when the tilt angle is changed normally. This reduces the load on the wedge block 34 and the turntable 24. When the pressure of the second spring 20 is low, the wedge block 34 can fully bear the load, while the turntable 24 does not need to continuously bear the pressure, thus reducing the fatigue strength of the components.

[0039] Furthermore, one end of the extrusion rail 26 is close to the edge of the turntable 24, and the other end is close to the inner ring of the turntable 24. An inner ring 29 is rotatably connected to the inner side of the slide rail 16. A limit rod 30 is fixedly connected to the surface of the inner ring 29. The limit rod 30 and the lifting plate 27 are detachably connected together. Both the inner ring of the turntable 24 and the outer ring of the inner ring 29 are provided with teeth. A pair of centering rods 31 are fixedly installed on the inner side of the slide rail 16. Each centering rod 31 is rotatably connected to a transmission gear 32. The inner ring 29 meshes with the turntable 24 through the transmission gear 32. When the wedge block 34 exits the inclined groove 28, the bottom of the lifting plate 27 does not contact the limit rod 30 for a short period of time. The limit rod 30 and the lifting plate 27... 7 is still in the separated state. Then the second spring 20 is released. During the release process, the second spring 20 will generate an instantaneous impact force, causing the lifting plate 27 to drop rapidly. The limit rod 30 is set next to the bottom of the lifting plate 27 to block the lifting plate 27 and support it, thereby shortening the idle stroke of the second spring 20 and reducing the impact force. Therefore, when the drive rod 12 pulls the turntable 24 to rotate counterclockwise through the wire rope, it drives the transmission gear 32 to rotate. When the transmission gear 32 rotates, the inner ring 29 drives the limit rod 30 to contact the bottom of the lowering lifting plate 27. Then the limit rod 30 supports the bottom of the lifting plate 27.

[0040] Next, as the turntable 24 rotates, the locking bar 37 descends with the lifting plate 27 and contacts the inner wall of the counterclockwise rotating pressing rail 26. At the same time, the bottom sides of the lifting plate 27 contact the inclined surface 2601. As the inner ring 29 rotates, the bottom of the lifting plate 27 disengages from the bottom of the limiting rod 30. At this time, the inclined surface 2601 prevents the lifting plate 27 from continuing to move downward, and the contact between the locking bar 37 and the inner wall of the pressing rail 26 also prevents the lifting plate 27 from continuing to move downward. Meanwhile, the second spring 20 is still in the released state, and the lifting plate 27 still has the force to move downward. This downward force can be transmitted between the locking bar 37 and the pressing rail 26, thereby generating pressure and friction between the locking bar 37 and the pressing rail 26. This further prevents the lifting plate 27 from descending, allowing the second spring 20 to be released and restricted. Therefore, in the whole process, while releasing the second spring 20, the boom 5 can continue to operate under multi-angle adjustment, improving the equipment's ability to adapt to various working conditions.

[0041] Furthermore, multiple embedded slots 38 are equidistantly provided on the built-in ring 29, and a third cylinder 36 is fixed inside the turntable 24. The axis of the third cylinder 36 is perpendicular to the axis of the built-in ring 29. Before the equipment is shut down, the boom 5 is retracted to the initial position, and the third cylinder 36 extends into one of the embedded slots 38 to lock the movement of the turntable 24, thereby preventing the parts from loosening due to the continuous shaking of the equipment during transportation when the turntable 24 is not in use.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dynamic compaction machine for treating settlement of collapsible loess roadbed, comprising a mounting plate (1), characterized in that: A frame (2) is fixedly installed on one side of the top of the mounting plate (1). A rope winding machine (3) is fixedly connected to one side of the top of the frame (2). Two mounting brackets (4) are fixedly installed on the other side of the top of the frame (2). A boom (5) is hinged between the bottoms of the two mounting brackets (4). A tamping hammer (6) is suspended at one end of the boom (5). A first connecting rod (9) is rotatably connected to both sides of the boom (5). A second spring (20) is fixedly connected to one end of the first connecting rod (9). A steering ball (18) is fixedly connected to one end of the second spring (20). An anchor rod (17) is slidably connected to the inner ring of the steering ball (18). The anchor rod (17) and the first connecting rod (9) are slidably connected. The mounting plate (1) is fixedly installed on both sides of the middle part of the mounting plate (1). The slider (22) is slidably connected on the slider (16). The lifting plate (27) is fixedly installed in the middle of the bottom of the slider (22). The lifting plate (27) has a groove (28) on one side. The mounting frame (4) is fixedly installed on one side. The second cylinder (33) is fixedly installed on one end of the second cylinder (33). The wedge (34) is slidably connected to the groove (28). The pressure signal device (19) is fixedly installed on the steering ball (18).

2. The dynamic compaction machine for treating settlement of collapsible loess roadbed according to claim 1, characterized in that: The slide rail (16) includes a slide plate fixed to the top of the mounting plate (1) and a lifting plate fixed to the side of the mounting frame (4). A pressure alarm (35) is fixedly installed on the outer side of the lifting plate, and the pressure alarm (35) and the pressure signal device (19) are electrically connected.

3. The dynamic compaction machine for treating settlement of collapsible loess roadbed according to claim 2, characterized in that: The first connecting rod (9) has an explosion-proof cavity at one end, and a first spring (901) is fixedly connected inside the explosion-proof cavity. One end of the anchor rod (17) extends into the explosion-proof cavity, and an explosion-proof plate (21) is fixedly installed at one end of the anchor rod (17). The explosion-proof plate (21) and the explosion-proof cavity are slidably connected.

4. The dynamic compaction machine for treating settlement of collapsible loess subgrade according to claim 3, characterized in that: The steering ball (18) and the slider (22) are rotatably connected. A protective sleeve (23) is fixedly connected to one side of the bottom of the slider (22). The protective sleeve (23) is semi-circular in shape. The axis of the steering ball (18) and the center point of the arc of the protective sleeve (23) coincide on the same baseline.

5. A dynamic compaction machine for treating settlement of collapsible loess roadbed according to claim 4, characterized in that: The second steel rope (8) is connected to the middle of the rope winding machine (3), and the first steel rope (7) is connected to both ends of the rope winding machine (3) by winding. One end of the first steel rope (7) and the second steel rope (8) are connected to the top of the hammer (6).

6. A dynamic compaction machine for treating settlement of collapsible loess roadbed according to claim 5, characterized in that: The mounting plate (1) has fixed rods (11) fixedly installed on both sides of one end. The fixed rod (11) is rotatably connected to a second connecting rod (10). The second connecting rod (10) has a guide rail (13) at one end and an insertion rail at the other end. The second connecting rod (10) is rotatably connected to the boom (5) through the insertion rail. A drive rod (12) is slidably connected on the guide rail (13). A turntable (24) is rotatably connected to the inside of the slide plate. The drive rod (12) and the turntable (24) are connected together by a steel wire rope. A first cylinder (14) is fixedly connected to the bottom of one end of the second connecting rod (10). A spike (15) is fixedly installed at the bottom of the first cylinder (14).

7. A dynamic compaction machine for treating settlement of collapsible loess subgrade according to claim 6, characterized in that: The turntable (24) is provided with an extrusion rail (26), and the bottom of both sides of the extrusion rail (26) is provided with inclined surfaces (2601). The bottom of the lifting plate (27) extends to the extrusion rail (26), and a locking strip (37) is fixedly installed on the lifting plate (27). The locking strip (37) and the extrusion rail (26) are slidably connected. A counterweight (25) is fixedly installed on the turntable (24).

8. A dynamic compaction machine for treating settlement of collapsible loess roadbed according to claim 7, characterized in that: One end of the extrusion rail (26) is close to the edge of the turntable (24), and the other end is close to the inner ring of the turntable (24). The inner side of the slide rail (16) is rotatably connected to an inner ring (29). A limit rod (30) is fixedly connected to the surface of the inner ring (29). The limit rod (30) and the lifting plate (27) are detachably connected. The inner ring of the turntable (24) and the outer ring of the inner ring (29) are both provided with teeth. A pair of centering rods (31) are fixedly installed on the inner side of the slide rail (16). A transmission gear (32) is rotatably connected to each centering rod (31). The inner ring (29) is meshed with the turntable (24) through the transmission gear (32).

9. A dynamic compaction machine for treating settlement of collapsible loess roadbed according to claim 8, characterized in that: The built-in ring (29) has multiple embedded grooves (38) at equal intervals, and the turntable (24) has a third cylinder (36) fixed inside, the axis of the third cylinder (36) being perpendicular to the axis of the built-in ring (29).

10. A dynamic compaction machine for treating settlement of collapsible loess roadbed according to claim 9, characterized in that: The lifting plate (27) and the turntable (24) are slidably connected, and the projections of the lifting plate (27) and the counterweight (25) in the vertical direction coincide in the initial state. The inner ring of the extrusion rail (26) is made of anti-slip material.

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