Expressway construction tamping device

Abstract

The invention belongs to the technical field of road construction, and particularly discloses an expressway construction tamping device which comprises a square frame-shaped frame, rolling wheels arranged at the bottoms of the four corners of the frame-shaped frame, a motor arranged on the square frame-shaped frame, a plurality of track arms driven by the motor to rotate and a strip-shaped heavy hammer capable of sliding on the track arms. Rail grooves are formed in the opposite faces of the rail arms on the two sides, the strip-shaped heavy hammer is arranged between the two opposite rail arms, sliding blocks connected into the rail grooves in a sliding mode are arranged at the two ends of the strip-shaped heavy hammer, the fixing disc is fixed to the motor and located on the outer sides of the two rail arms, and a first triggering piece and a second triggering piece are arranged on the inner side of the fixing disc. A plurality of groups of heavy hammers are controlled to reciprocate in an arc-shaped stroke and are automatically released at the peak of the stroke, potential energy of the heavy hammers is converted into huge impact kinetic energy for continuous tamping operation, high impact energy for tamping of the heavy hammers and maneuverability and flexibility of small equipment are integrated, and the problem of tamping perpendicularity under the working condition of an inclined plane is effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of road construction, and particularly relates to a high-speed road construction tamping device. BACKGROUND

[0002] With the rapid development of highway traffic network in China, the expressway has become the artery of the national economy. In order to ensure the continuous, safe and efficient operation, the daily maintenance and repair work is very important. In the maintenance process, the local pavement damage, subsidence and other diseases caused by heavy traffic, material aging or foundation changes need to be repaired. A key process in the repair process is to tamp the backfilled base, cushion or surface layer material to ensure the compaction degree, bearing capacity and long-term stability of the repair area. At present, the tamping equipment applied to such small range and point maintenance operation is mainly handheld or small-sized impact rammer, flat rammer and the like. This kind of equipment uses the eccentric block driven by an internal combustion engine or an electric motor to generate high-frequency and low-amplitude vibration to vibrate and compact the material. Its advantages are small size, light weight and flexible mobility, which can adapt to narrow space operation. However, in the long-term engineering practice, the existing technology has the following technical defects to be improved:

[0003] The working principle of the high-frequency vibration tamping equipment determines that the single impact energy is low, and the force is mainly concentrated on the surface layer, so the compaction effect on the deep layer material is not ideal. For the repair of the expressway roadbed or base layer which requires high compaction degree, the tamping energy and influence depth are often difficult to meet the specification requirements, which may lead to insufficient compaction of the repair area. In contrast, the heavy drop hammer tamping machine (commonly known as "dynamic compactor") applied to large-area foundation treatment can provide huge impact energy and realize deep compaction, but its equipment structure is large and heavy, and needs to be equipped with large lifting and bearing machinery, so the mobility is very poor, and it is completely not suitable for such local and rapid repair scene in the expressway maintenance. Therefore, the existing technology has an irreconcilable contradiction between providing high impact energy and ensuring operation flexibility.

[0004] The strong mechanical vibration generated by the high-frequency vibration tamping equipment during work is directly transmitted to the operator's arms and even the whole body through the handrails, control rods and other components without attenuation. If the operator works in this vibration environment for a long time, it is easy to cause "arm vibration syndrome" and other occupational diseases, which seriously damages the physical and mental health of the operator.

[0005] In the route design of the highway, a certain slope is often set at the curve, and the road shoulder also has a certain slope. If the traditional gravity compaction principle (for example, using a lifted heavy hammer to fall freely) is used for operation, the direction of the ramming force is always vertically downward due to the gravity, which means that the ramming force will be decomposed into an effective compaction force perpendicular to the road surface and an invalid component force along the tangent of the road surface. This decomposition of force not only causes the waste of impact energy, but also causes the surface after compaction to be non-parallel to the designed road surface, thereby destroying the flatness of the repaired area. SUMMARY

[0006] In view of the above, the present application provides a highway construction compaction device, which controls the reciprocating motion of multiple groups of heavy hammers in an arc-shaped stroke through a power-driven cyclic lifting and releasing mechanism, and automatically releases at the stroke vertex, so as to convert the potential energy into a large impact kinetic energy for continuous compaction operation. The device has high impact energy of the heavy hammer compaction and the flexibility of the small equipment, effectively solves the problem of verticality of ramming under the slope working condition, and fundamentally avoids the health damage of high-frequency vibration to the operator.

[0007] The technical scheme adopted by the present application is as follows: the present application provides a highway construction compaction device, which comprises a square frame, rollers arranged at the bottom of four corners of the square frame, motors arranged on the square frame, multiple track arms driven to rotate by the motors, and strip-shaped heavy hammers which can slide on the track arms.

[0008] Further, the motors are symmetrically arranged on the inner sides of the opposite frames of the square frame, multiple track arms on the same side of the motors are arrayed along the central circumference of the track arms to form umbrella-shaped structures, and the output ends of the two motors are coaxially connected with the central shafts of two groups of umbrella-shaped structures which are oppositely spaced.

[0009] Further, the track grooves are arranged on the opposite surfaces of the track arms on the two sides, the strip-shaped heavy hammers are arranged between the two track arms on the opposite sides, the two ends of the strip-shaped heavy hammers are provided with sliding blocks which are slidingly connected in the track grooves, and the number of the strip-shaped heavy hammers is equal to the number of the track arms on a single side.

[0010] Further, the device further comprises a fixed disc which is fixed to the motor and located outside the two groups of track arms, and the inner side of the fixed disc is provided with a first trigger and a second trigger.

[0011] Further, the two ends of each track arm are provided with a heavy hammer force storage lifting mechanism and a heavy hammer clamping and releasing mechanism, the heavy hammer clamping and releasing mechanism comprises a second clamping block clamped with the sliding block and a second release rod matched with the second trigger, and the heavy hammer force storage lifting mechanism comprises a lifting rod abutted with the sliding block and a first release rod matched with the first trigger.

[0012] Further, the heavy hammer engaging release mechanism further comprises a third spring seat, a third tension spring and a connecting rod, the third spring seat is fixedly connected with the second engaging block, the third tension spring is connected between the track arm and the third spring seat, the connecting rod is connected between the second release lever and the third spring seat, and when the second release lever contacts the second trigger, the third spring seat is driven to move so that the second engaging block leaves the track slot; the second engaging block can penetrate the track arm into the track slot.

[0013] Further, the heavy hammer force storage lifting mechanism further comprises a first engaging block, a second spring seat, a limiting block and a second tension spring, the first engaging block can penetrate the track arm into the track slot, the second spring seat is fixedly connected with the first engaging block, the second tension spring is connected between the track arm and the second spring seat, and the limiting block is fixedly connected with the second spring seat and located on the movement path of the lifting rod.

[0014] Further, the track arm is further provided with a fixed first spring seat and a first tension spring connected between the first spring seat and the lifting rod, the lifting rod is fixedly connected with the first release lever, the lifting rod can be blocked by the limiting block when it is reset under the action of the first tension spring, and the first release lever always penetrates the track arm and is directed to the fixed disc in movement.

[0015] Further, the track arm forms an umbrella-shaped structure with a gap caused by the track slot in the center, the length of the sliding block is greater than the length of the gap to avoid track stringing; the heavy hammer force storage lifting mechanism is arranged between the end of the track arm and the first spring seat, and the heavy hammer engaging release mechanism is arranged between the heavy hammer force storage lifting mechanism and the first spring seat.

[0016] Further, the fixed disc is provided with a sleeve, the motor penetrates the fixed disc and the sleeve is sleeved on the motor, the sleeve is provided with a fastening bolt, and the fastening bolt is in threaded connection with the outer shell of the motor after penetrating the sleeve.

[0017] Further, one end of the first engaging block and the second engaging block extending into the track slot is provided with a chamfer directed to the center of the track arm, which is used for pushing the first engaging block and the second engaging block out of the track slot when the sliding block moves along the track slot from one end to the other end.

[0018] Further, each pair of connecting rods is provided; one end of the two rod members of each group is rotatably connected with the second release lever, and the other end is rotatably connected with the third spring seat and the track arm, respectively.

[0019] Further, along the rotation path of the track arm, the first trigger is arranged before the second trigger; the first trigger is provided with a slope for pushing the first release lever away from the center of the fixed disc, and the second trigger is provided with a slope for pressing the second release lever towards the center of the fixed disc.

[0020] The above structure of the present application has the following beneficial effects:

[0021] (1) The present application combines track arm and bar weight, uses motor to drive track arm to cyclically lift and release bar weight, which gives the device excellent flexibility, and converts potential energy of the weight into huge impact kinetic energy, realizes efficient compaction of deep layer of road surface, and successfully integrates flexibility of small equipment and high impact energy of heavy ramming equipment, effectively solves the contradiction between high impact energy and operation flexibility in the prior art.

[0022] (2) The ramming impact of the present application is generated by falling of the bar weight in the track groove, the whole power and execution mechanism are integrated on the frame, the impact force is directly applied to the ground, and the operator only needs to push and guide the whole device, without holding the vibration part, which fundamentally separates the operator from the high-frequency vibration source, completely avoids the risk of "arm vibration syndrome" and other occupational diseases caused by long-term bearing of strong mechanical vibration, and greatly guarantees the physical and mental health of the operator.

[0023] (3) The present application ingeniously solves the ramming problem in inclined surface working condition, since the bar weight and its sliding block are always constrained to move in the track groove of the track arm, the impact direction is perpendicular to the track arm, when working on the slope, only the last track arm releasing the weight is perpendicular to the slope surface, the ramming force is completely perpendicular to the working surface, which avoids the damage of traditional gravity ramming to the flatness of the repaired area, and ensures the construction quality under any slope.

[0024] (4) The present application sets multiple bar weights, and drives them to circulate on the track arm in umbrella structure by motor, realizes continuous and rapid ramming operation, unlike the traditional gravity rammer which needs to go through a complete lifting and descending waiting time after single ramming, the multiple bar weights of the present application alternately perform "lifting-locking-releasing-ramming" action, while one bar weight is ramming, the other bar weights are lifting or waiting to release, so as to form uninterrupted ramming flow, which greatly improves the construction efficiency, and can realize seamless and non-missing rapid coverage of the target area. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective structural schematic view of a highway construction ramming device proposed by the present application.

[0026] Figure 2 It is a side view of a highway construction ramming device proposed by the present application.

[0027] Figure 3 It is a top view of a highway construction ramming device proposed by the present application.

[0028] Figure 4 It is aFigure 3 Zoomed-in view of part A.

[0029] Figure 5 For Figure 1 Zoomed-in view of part B.

[0030] Figure 6 It is an explosive structure schematic diagram of the position relationship between the heavy hammer force storage lifting mechanism and the heavy hammer clamping and releasing mechanism of the highway construction ramming device.

[0031] Figure 7 It is a working track diagram of the sliding block of the highway construction ramming device when it is hammered down.

[0032] Figure 8 It is a working track diagram of the first release rod and the first trigger piece of the highway construction ramming device when they are in contact.

[0033] Figure 9 It is a working track diagram of the second release rod and the second trigger piece of the highway construction ramming device when they are in contact.

[0034] Figure 10 It is a side view of the highway construction ramming device when it is working on a slope.

[0035] 1, frame, 11, roller, 2, motor, 3, fixed disc, 31, sleeve, 32, fastening bolt, 4, track arm, 41, track groove, 42, first spring seat, 5, bar-shaped heavy hammer, 51, sliding block, 6, lifting rod, 61, first tension spring, 7, heavy hammer force storage lifting mechanism, 71, first clamping block, 72, second spring seat, 73, limiting block, 74, second tension spring, 75, first release rod, 76, first trigger piece, 8, heavy hammer clamping and releasing mechanism, 81, second clamping block, 82, third spring seat, 83, third tension spring, 84, connecting rod, 85, second release rod, 86, second trigger piece.

[0036] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0039] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown in the drawings, the present application provides a highway construction ramming device, the overall frame of the device is composed of a square frame 1, which is solid and stable, providing a mounting base for other components. Rollers 11 are provided at the bottom corners of the square frame 1, allowing the entire device to move conveniently on the construction road surface.

[0040] The power system is the core driving unit of the device. Specifically, two motors 2 are symmetrically arranged inside the opposite two side frames of the square frame 1. The output end of each motor 2 is coaxially connected to a group of umbrella-shaped structures composed of multiple track arms 4 arranged along the central circumference of the track arm 4. In this way, the entire device has two groups of umbrella-shaped ramming units that are spaced apart and rotate synchronously in the same direction. This symmetrical layout ensures balanced force and smooth operation of the device during operation.

[0041] The execution mechanism of the ramming action is composed of track arms 4 and strip-shaped weights 5. Opposite track arms 4 in the two-sided umbrella-shaped structure are provided with track grooves 41 on their opposite surfaces. Strip-shaped weights 5 are horizontally arranged between the two opposite track arms 4, with sliding blocks 51 at both ends. The sliding blocks 51 are slidably connected to the corresponding track grooves 41. The number of strip-shaped weights 5 is equal to the number of single-sided track arms 4, ensuring that each track arm 4 participates in the ramming cycle. Since the track grooves 41 form multiple notches at the center of the umbrella-shaped structure, to prevent the strip-shaped weights 5 from leaving the predetermined track and entering the track groove 41 of the adjacent track arm 4 when passing through the center position, the length of the sliding block 51 is designed to be greater than the length of the center notch, thereby ensuring the uniqueness and stability of its operation.

[0042] In order to precisely control the lifting and releasing of the strip-shaped weight 5, the device further comprises a fixed trigger control system, which comprises a fixed disc 3 fixed to the motor 2 and located outside the two sets of track arms 4. In order to achieve precise adjustment of the position and angle of the fixed disc 3, a sleeve 31 is arranged on the fixed disc 3, the motor 2 penetrates the fixed disc 3, and the sleeve 31 is sleeved on the motor 2. A fastening bolt 32 is arranged on the sleeve 31, and after being screwed through the sleeve 31, the fastening bolt 32 can abut against the shell of the motor 2. By adjusting the angle of the fixed disc 3 and locking the fastening bolt 32, the trigger timing can be precisely adjusted. On the inner side of the fixed disc 3, i.e. the side facing the track arms 4, a first trigger 76 and a second trigger 86 are arranged to trigger subsequent actions.

[0043] At both ends of each track arm 4, a set of precise mechanical linkage mechanisms are symmetrically arranged, including a weight storage lifting mechanism 7 and a weight clamping releasing mechanism 8.

[0044] The weight storage lifting mechanism 7 functions to lift the strip-shaped weight 5 to a certain height after it is compacted, so as to avoid interference with the ground during rotation and hinder its movement. The mechanism comprises a first clamping block 71 capable of penetrating and entering the track slot 41 perpendicularly to the track arm 4, a second spring seat 72 fixedly connected with the first clamping block 71, a second tension spring 74 connected between the track arm 4 and the second spring seat 72, a limiting block 73 fixedly connected to the second spring seat 72 and located on the movement path of the lifting rod 6, and a first release rod 75 fixedly connected with the lifting rod 6. The lifting rod 6 is connected with a first spring seat 42 fixedly arranged on the track arm 4 through a first tension spring 61. The first release rod 75 always penetrates the track arm 4 and faces the fixed disc 3 during movement.

[0045] The weight clamping releasing mechanism 8 functions to reliably lock the strip-shaped weight 5 after it is lifted to a predetermined height, and instantaneously unlock when the release point is reached. The mechanism comprises a second clamping block 81 also capable of entering the track slot 41, a third spring seat 82 fixedly connected with the second clamping block 81, a third tension spring 83 connected between the track arm 4 and the third spring seat 82, a connecting rod 84 for transmitting action, and a second release rod 85 connected with the connecting rod 84. In order to achieve reliable action transmission, the connecting rod 84 is preferably arranged in pairs for each set. One end of the two rod pieces of each set is rotatably connected with the second release rod 85, and the other end is rotatably connected with the third spring seat 82 and the track arm 4, respectively. Through this lever structure, the axial movement of the second release rod 85 can be efficiently converted into the lateral movement of the third spring seat 82, so as to control the entry and exit of the second clamping block 81 into the track slot 41.

[0046] In order to achieve smooth one-way triggering, the first clamping block 71 and the second clamping block 81 are provided with chamfers towards the center of the track arm 4 at one end of the track slot 41, which can push the first clamping block 71 and the second clamping block 81 out of the track slot 41 when the slider 51 moves along the track slot 41 from one end to the other end (i.e. the ramming falling direction), without causing rigid impact.

[0047] In terms of functional layout, the weight accumulation lifting mechanism 7 is arranged between the end of the track arm 4 and the first spring seat 42, and the weight clamping release mechanism 8 is arranged between the weight accumulation lifting mechanism 7 and the first spring seat 42, and along the rotating path of the track arm 4, the first trigger 76 is arranged before the second trigger 86, specifically, the first trigger 76 is provided with a slope that pushes the first release rod 75 away from the center of the fixed disc 3, and the second trigger 86 is provided with a slope that pushes the second release rod 85 towards the center of the fixed disc 3.

[0048] The specific working process is as follows:

[0049] The initial stage of ramming and resetting: the operator moves the device to the area to be rammed, starts the motor 2, and the two groups of umbrella-shaped track arms 4 start to rotate synchronously, and manually pushes the entire device to move slowly through the roller 11, assuming that a strip-shaped weight 5 is just released when the track arm 4 rotates to near the vertical position, falls at high speed and hits the ground, completing the ramming work, at this time, the huge impact energy is completely released, because the height of the strip-shaped weight 5 is greater than the height of the slider 51, ensuring that the ramming moment is not restricted by any rigid structure, after the impact is completed, the strip-shaped weight 5 is stationary on the ground, and during the falling process, the sliders 51 at both ends successively press the chamfers of the second clamping block 81 and the first clamping block 71, pushing them out of the track slot 41, when the slider 51 passes the first clamping block 71, the limit block 73 linked therewith also moves away, and when the slider 51 finally stops, it will contact and press the lifting rod 6.

[0050] Lifting off the ground and preliminary locking: after the ramming energy is released, the first tension spring 61 in the stretched state starts to contract, lifting the strip-shaped weight 5 and the slider 51 upward from the ground through the lifting rod 6, during the lifting process, the position of the slider 51 will always push the first clamping block 71 out, and since the second clamping block 81 has been reset under the action of the third tension spring 83, the slider 51 is firmly clamped by the second clamping block 81 during the lifting process, completing the preliminary locking, and after the lifting process, the slider 51 leaves the first clamping block 71, but since the lifting rod 6 is in close contact with the slider 51, the lifting rod 6 blocks the limit block 73 when the slider 51 just leaves the first clamping block 71, so that the first clamping block 71 cannot be reset, therefore, the limit block 73 and the first clamping block 71 are still in the state of being stretched to both sides.

[0051] Rotation and force storage reset: the track arm 4 continues to rotate driven by the motor 2, the bar-shaped weight 5 that has been clamped by the second clamp block 81 leaves the ground and is taken to the high point by the circular motion, in this process, the next bar-shaped weight 5 is performing the tamping action, realizing continuous operation, when the bar-shaped weight 5 rotates to the middle of the stroke near the highest point, the first release rod 75 on it contacts the first trigger 76 on the fixed disc 3, the inclined surface of the first trigger 76 pushes the first release rod 75 outward, driving the lifting rod 6 to move outward, thereby leaving the contact with the sliding block 51 and the blockage of the limiting block 73, the removal of the lifting rod 6 releases two constraints: first, the limiting block 73 is no longer blocked, and under the action of the second tension spring 74, the first clamp block 71 is completely reset into the track slot 41; second, when the first release rod 75 passes through the first trigger 76, the first tension spring 61 pulls the lifting rod 6 to reset, but at this time the resetting stroke of the lifting rod 6 is blocked by the limiting block 73 that has been reset, so that the lifting rod 6 returns to its initial force storage preparation state.

[0052] Tamping action release: immediately after the track arm 4 rotates to a position close to vertical downward, the second release rod 85 contacts the second trigger 86, the inclined surface of the second trigger 86 presses the second release rod 85 inward, through the linkage action of the connecting rod 84, pulls the third spring seat 82, and the second clamp block 81 instantaneously exits from the track slot 41, the constraint on the sliding block 51 is released, the bar-shaped weight 5 falls along the track slot 41 at high speed under the action of gravity, and hits the ground again, starting the next cycle, by controlling the rotating speed of the motor 2, the tamping frequency can be adjusted, and by matching the moving speed of the device, full coverage tamping without omission and gap in the target area can be realized, at the same time, by adjusting the trigger position of the second trigger 86, the bar-shaped weight 5 is matched with the rotation of the track arm 4 in the process of falling, so that the instant of contacting the road surface is perpendicular to the road surface.

[0053] Slope operation: when operating on a road surface with slope (such as a highway curve or shoulder), since the bar-shaped weight 5 is always constrained to move in the track slot 41, the direction of its falling impact will always be parallel to the direction of the track arm 4, under the condition that the initial setting remains unchanged, it can be ensured that the track arm 4 is perpendicular to the road surface slope at the moment of releasing the weight, so that the tamping force is completely perpendicular to the slope, avoiding energy loss and damage to the flatness, and realizing high-quality vertical tamping of different angle slopes.

[0054] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the claims.

[0055] While the embodiments of the application have been shown and described, it is to be understood that the embodiments described are only by way of example and that modifications, changes, substitutions and variations can be made by those skilled in the art without departing from the spirit and scope of the application.

[0056] The above description of the application and its embodiments is not intended to limit the application, as described by the appended claims, to the embodiments described above. Rather, it is intended to cover all adaptations, modifications and variations of the specific embodiments of the application chosen by the inventors as coming within the scope of the application.

Claims

1. A high-speed road construction compaction device, comprising a rectangular frame (1) and rollers (11) disposed at the bottom of the four corners of the rectangular frame (1), characterized in that: It also includes a motor (2) mounted on a square frame (1), multiple track arms (4) driven to rotate by the motor (2), and a strip-shaped weight (5) that can slide on the track arms (4). The motor (2) is symmetrically arranged on the inner side of the opposite frame of the square frame (1). Multiple track arms (4) on the same side as the motor (2) are arranged in an umbrella-shaped structure along the central circumference of the track arm (4). The output ends of the two motors (2) are coaxially connected to the central axis of the two sets of oppositely spaced umbrella-shaped structures formed by the track arms (4). The two side rail arms (4) have rail grooves (41) on opposite surfaces. The bar-shaped weights (5) are located between the two opposite rail arms (4). The two ends of the bar-shaped weights (5) are provided with sliders (51) that are slidably connected in the rail grooves (41). The number of bar-shaped weights (5) is equal to the number of single-side rail arms (4). It also includes a fixed plate (3) fixed to the motor (2) and located outside the two sets of track arms (4), and the fixed plate (3) is provided with a first trigger (76) and a second trigger (86) on its inner side; Each of the two ends of the track arm (4) is provided with a weight storage lifting mechanism (7) and a weight engagement and release mechanism (8). The weight engagement and release mechanism (8) includes a second locking block (81) that engages with the slider (51) and a second release rod (85) that cooperates with the second trigger (86). The weight storage lifting mechanism (7) includes a lifting rod (6) that abuts against the slider (51) and a first release rod (75) that cooperates with the first trigger (76).

2. The highway construction compaction device according to claim 1, characterized in that: The counterweight locking and releasing mechanism (8) further includes a third spring seat (82), a third tension spring (83), and a connecting rod (84). The third spring seat (82) is fixedly connected to the second locking block (81). The third tension spring (83) is connected between the track arm (4) and the third spring seat (82). The connecting rod (84) is connected between the second release rod (85) and the third spring seat (82). The second locking block (81) can penetrate the track arm (4) and enter the track groove (41).

3. The highway construction compaction device according to claim 2, characterized in that: The weight-storage lifting mechanism (7) further includes a first locking block (71), a second spring seat (72), a limiting block (73), and a second tension spring (74). The first locking block (71) can pass through the track arm (4) and enter the track groove (41). The second spring seat (72) is fixedly connected to the first locking block (71). The second tension spring (74) is connected between the track arm (4) and the second spring seat (72). The limiting block (73) is fixedly connected to the second spring seat (72) and is located on the movement path of the lifting rod (6).

4. The highway construction compaction device according to claim 3, characterized in that: The track arm (4) is also provided with a fixed first spring seat (42) and a first tension spring (61) connected between the first spring seat (42) and the lifting rod (6). The lifting rod (6) is fixedly connected to the first release rod (75). When the lifting rod (6) is reset under the action of the first tension spring (61), it can be blocked by the limiting block (73). The first release rod (75) always passes through the track arm (4) and faces the fixed plate (3) during movement.

5. The highway construction compaction device according to claim 4, characterized in that: The umbrella-shaped structure formed by the track arm (4) has a gap caused by the track groove (41) at its center. The length of the slider (51) is greater than the length of the gap to avoid track slippage. The weight storage and lifting mechanism (7) is located between the end of the track arm (4) and the first spring seat (42). The weight engagement and release mechanism (8) is located between the weight storage and lifting mechanism (7) and the first spring seat (42).

6. The highway construction compaction device according to claim 5, characterized in that: The fixed plate (3) is provided with a sleeve (31), the motor (2) passes through the fixed plate (3) and the sleeve (31) is sleeved on the motor (2), the sleeve (31) is provided with a fastening bolt (32), the fastening bolt (32) is threaded through the sleeve (31) and then abuts against the outer shell of the motor (2).

7. A highway construction compaction device according to claim 6, characterized in that: The first locking block (71) and the second locking block (81) both have a chamfer at one end that extends into the track groove (41) and faces the center of the track arm (4).

8. A highway construction compaction device according to claim 7, characterized in that: The connecting rods (84) are arranged in pairs; one end of each pair of rods is rotatably connected to the second release rod (85), and the other end is rotatably connected to the third spring seat (82) and the track arm (4).

9. A highway construction compaction device according to claim 8, characterized in that: In the rotation path along the track arm (4), the first trigger (76) is located before the second trigger (86); the first trigger (76) has an inclined surface that pushes the first release rod (75) outward toward the center of the fixed plate (3), and the second trigger (86) has an inclined surface that presses the second release rod (85) inward toward the center of the fixed plate (3).

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