Vibration tamping mechanism and construction method

Abstract

The invention discloses a vibration tamping mechanism and a construction method. The vibration tamping mechanism and the construction method aim at solving the problems that a groove tamping construction machine is difficult to operate, low in labor efficiency and low in percent of pass. The leveling mechanism comprises a transverse moving vehicle body, a longitudinal moving vehicle body, a telescopic mechanism, a rotating mechanism and a width-adjustable leveling mechanism, and the leveling mechanism moves along a groove track and a self-walking assembly through a transverse moving track. During construction, the leveling mechanism is made to make contact with the bottom of a groove through the telescopic mechanism, the self-walking assembly drives the leveling mechanism to the end of the groove, the leveling mechanism conducts tamping construction in the moving process of the transverse moving vehicle body, after construction on one side is completed, the self-walking assembly moves by a set distance, the transverse moving vehicle body conducts reverse construction, and circulation is conducted till completion. The groove backfill material leveling and tamping unmanned construction is achieved, safety accidents are avoided, the leveling mechanism is matched with the vibration exciter to improve the tamping quality, the construction efficiency is greatly improved through cooperation of the self-walking assembly and the transverse moving assembly, and the groove backfill material leveling and tamping unmanned construction device is suitable for municipal pipe network construction.

Description

Technical Field

[0001] The invention relates to the technical field of trench construction equipment, in particular to a vibration compaction mechanism and a construction method. Background Art

[0002] In municipal engineering pipeline construction, trench excavation and support, pipeline laying, and backfill handling are critical steps. The quality of backfill leveling and compaction directly impacts the service life of the pipeline network and road stability. Currently, traditional construction methods have significant drawbacks: backfill leveling relies on an excavator for initial paving, followed by manual work in the trench using tools to fine-tune the leveling. Compacting requires workers to use a handheld plate compactor to reciprocate within the trench. The narrow trenches make it difficult for machinery to penetrate deeply, forcing workers to work closely with equipment within the confined space. This makes construction prone to accidents such as earthwork collapse and machinery collisions. Annual trenching accidents account for over 30% of municipal construction accidents. Furthermore, manual labor is inefficient: leveling and compacting backfill in a single 10-meter trench requires 4-6 people and 8-10 hours to complete. This manual operation also results in uneven backfill density, resulting in a pass rate of only 75%-80%. This can lead to road subsidence and pipeline displacement, increasing rework and repair costs by approximately 20%-30%. With the increasing requirements for intelligent and safe construction of municipal engineering, there is an urgent need for a device that can realize unmanned construction of trench backfill leveling and compaction to ensure operation safety and improve construction efficiency and quality. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that it is difficult for a machine to reach in during trench tamping, and manual operation has low efficiency and a low pass rate.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a vibration compaction mechanism, including a transverse moving car body connected to the transverse moving track by transverse sliding, a longitudinal moving car body connected to the top of the transverse moving car body by longitudinal sliding, and a telescopic mechanism fixed on the longitudinal moving car body. The movable end at the bottom of the telescopic mechanism is rotated and connected to the leveling mechanism with adjustable width through a rotary mechanism. The end of the transverse sliding rail is slidably connected to the track arranged along the groove, and the end of the transverse sliding rail is provided with a self-propelled component that drives the transverse sliding rail to move along the track.

[0005] Preferably, the leveling mechanism includes a leveling outer frame at the bottom and telescopic baffles slidably connected to opposite sides of the leveling outer frame. A vibrator is installed on the top of the leveling outer frame, and a shock absorber is connected between the leveling outer frame and the rotating mechanism.

[0006] Preferably, the slewing mechanism includes a slewing drive connected to the movable end of the telescopic mechanism and a gantry structure connected to the bottom of the slewing drive. A worm gear group is arranged inside the slewing drive, and the worm gear is arranged to rotate vertically. The gantry structure is fixed to the bottom of the worm gear, and the bottom end of the gantry structure is connected to the leveling outer frame through the shock absorber.

[0007] Preferably, the telescopic mechanism includes a telescopic drive mechanism vertically fixedly connected to the longitudinally moving vehicle body, the output end of the telescopic drive mechanism is vertically arranged downward, the output end of the telescopic drive mechanism is fixedly connected to a vertically arranged first-level telescopic column, the bottom of the first-level telescopic column is vertically slidably connected to a second-level telescopic column, and the rotating mechanism is connected to the bottom end of the second-level telescopic column.

[0008] Preferably, the telescopic drive mechanism is arranged at the diagonal point of the longitudinal moving vehicle body, the first-level telescopic column includes a first-level column and a first-level guide block, the output end of the telescopic drive mechanism is connected to the ear plate at the bottom of the outer wall of the first-level column, the top of the longitudinal moving trolley is connected to the first-level guide block, the first-level guide block is a truncated cone-shaped shell structure, and the outer wall of the first-level column is in contact with the inner wall of the first-level guide block.

[0009] Preferably, the secondary telescopic column includes a secondary column and a secondary guide block. The secondary guide block is arranged parallel to the secondary column. The top end of the secondary guide block is vertically slidably connected to the bottom of the primary column, and the bottom end is fixedly connected to the secondary column.

[0010] Preferably, a transverse sliding block is fixedly connected to the bottom of the transverse moving body, a slot adapted to the transverse moving track is provided at the bottom of the transverse moving block, a longitudinal moving track is installed on the top of the transverse moving body, and a longitudinal moving block adapted to the longitudinal moving track is fixed to the bottom of the longitudinal moving body.

[0011] Preferably, the walking assembly includes a mounting shaft horizontally rotatably connected to the end of the transverse track, the mounting shafts are arranged in pairs, and the two mounting shafts are connected by a sprocket transmission member. A driving member for driving the mounting shaft to rotate is installed on the transverse track, and a support wheel is fixedly connected to the mounting shaft. A slide groove is provided on the side wall of the track, and the support wheel is rotatably arranged inside the slide groove, and a limiting protrusion is provided at the opening of the slide groove.

[0012] Preferably, an encoder is fixedly installed on the inner side of the transverse track, and the input end of the encoder is transmission-connected to the mounting shaft.

[0013] A construction method of a vibration compaction mechanism comprises the following steps: Step 1: Start the telescopic mechanism, extend the telescopic mechanism, and drive the leveling mechanism to move downward, so that the leveling mechanism contacts the bottom of the groove, and control the telescopic mechanism to stop when contact is made; Step 2: Start the self-propelled assembly, which drives the transverse slide rail to move to the end of the groove, and then controls the transverse vehicle body to move along the transverse track. During the transverse movement, the leveling mechanism is controlled to perform tamping on the bottom of the groove. Step 3: After the traversing vehicle body moves to one edge of the trench, the self-propelled assembly is started to move along the track. The moving distance is controlled to be the length of the leveling mechanism. After reaching the set moving distance, the self-propelled assembly is stopped and the traversing vehicle body is controlled to move toward the other side of the trench to perform tamping work on the trench bottom. Step 4: Repeat steps 2 and 3 until the bottom of the entire trench is compacted.

[0014] The present invention provides a vibration compaction mechanism and a construction method, which have the following beneficial effects.

[0015] 1. This invention utilizes a self-propelled assembly to drive a transverse slide rail along its track, and the coordinated operation of a transverse and longitudinal carriage and telescopic mechanism to achieve unmanned trench backfill leveling and compaction. This eliminates the need for workers to enter narrow and dangerous trenches, preventing accidents such as earthwork collapse and machinery collisions. This significantly protects construction workers and effectively reduces the accident rate in municipal construction.

[0016] 2. The leveling frame at the bottom of the leveling mechanism works with the vibrator to evenly vibrate and compact the backfill material, effectively improving the mechanical properties of the soil, increasing the soil's bearing capacity and shear strength, reducing soil settlement and deformation, making the backfill material more uniform in density, and improving the compaction quality.

[0017] 3. The self-propelled components work in conjunction with the transverse vehicle body to quickly and automatically work on the trench bottom. Compared to the traditional single-section 10-meter trench backfilling and leveling and compacting work that requires 4-6 people and takes 8-10 hours to complete, this invention can significantly shorten construction time, improve construction efficiency, and accelerate project progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and examples: Figure 1 It is a structural front view of an embodiment of the present invention.

[0019] Figure 2 This is a bottom view of the leveled outer frame in an embodiment of the present invention.

[0020] Figure 3 2 is a top view of an embodiment of the present invention.

[0021] Figure 4 Schematic diagram of the structure of the self-propelled component in an embodiment of the present invention.

[0022] Figure 5 for Figure 4Magnified view of area A in center.

[0023] Figure 6 This is a walking route map for the construction of an embodiment of the present invention.

[0024] In the figure: 1. telescopic mechanism; 11. telescopic drive mechanism; 12. primary telescopic column; 121. primary column; 122. primary guide block; 13. secondary telescopic column; 131. secondary guide block; 132. secondary column; 2. longitudinal movement mechanism; 21. longitudinal movement vehicle body; 22. longitudinal movement slider; 3. transverse movement mechanism; 31. transverse movement vehicle body; 32. transverse movement slider; 33. transverse movement track; 4. slewing mechanism; 41. slewing drive; 42. gantry structure; 5. shock absorber; 6. exciter; 7. leveling mechanism; 71. telescopic baffle; 72. leveling outer frame; 8. support plate; 9. self-propelled component; 91. track; 92. mounting shaft; 93. sprocket transmission member; 94. support wheel; 95. encoder. DETAILED DESCRIPTION like Figure 1-6 As shown, the present invention provides a vibration compaction mechanism, including a transverse vehicle body 31 that is laterally slidably connected to a transverse rail 33, a longitudinal vehicle body 21 that is longitudinally slidably connected to the top of the transverse vehicle body 31, and a telescopic mechanism 1 fixed to the longitudinal vehicle body 21. The movable end at the bottom of the telescopic mechanism 1 is rotated and connected to a leveling mechanism 7 with adjustable width through a rotary mechanism 4. The end of the transverse slide rail 33 is slidably connected to a rail 91 arranged along the groove. The end of the transverse slide rail 33 is provided with a self-propelled component 9 that drives the transverse slide rail 3 to move along the rail 91.

[0025] On the basis of the original support plate 8, a track 91 is installed along the support plate 8. The track 91 is fixed to the support plate 8 by bolts. Tracks 91 are installed on the support plates 8 on both sides. The transverse slide rail 33 is supported by the two tracks 91. The transverse car body 31 is installed on the transverse slide rail 33. The transverse car body 31 can move along the axial direction of the transverse slide rail 33. The transverse car body 31 can drive the longitudinal car body 21 to move. The longitudinal car body 21 is slidably installed on the longitudinal track. The longitudinal track is installed on the top of the transverse car body 31. The longitudinal track is arranged perpendicular to the transverse slide rail 33. The longitudinal car body 21 can drive the telescopic mechanism 1 to move. The leveling mechanism 7 is integrated on the bottom movable end of the telescopic mechanism 1. By extending the movable end of the telescopic mechanism 1, the height of the leveling mechanism 7 is adjusted so that the leveling mechanism 7 contacts the bottom of the groove to perform tamping construction at the bottom of the groove. The function of the longitudinal track and the longitudinal trolley 21 is that for grooves with shorter distances, there is no need to install the track 91. Only the movement of the longitudinal trolley 21 can drive the leveling mechanism 7 to move a short distance along the groove.

[0026] like Figure 1 and Figure 2As shown. The leveling mechanism 7 includes a leveling outer frame 72 at the bottom and telescopic baffles 71 slidably connected to opposite sides of the leveling outer frame 72. A vibrator 6 is mounted on the top of the leveling outer frame 72, and a shock absorber 5 is connected between the leveling outer frame 72 and the rotary mechanism 41. The vibrator 6 drives the leveling outer frame 72 to vibrate, compacting the bottom of the trench. The shock absorber 5 prevents vibration from being transmitted to the telescopic mechanism 1, ensuring the stability of the overall operation of the compacting mechanism. By controlling the extension length of the telescopic baffles 71, the width of the bottom of the leveling mechanism 7 can be adjusted to meet the requirements of the trench compaction operation.

[0027] like Figure 1 As shown, the slewing mechanism includes a slewing drive 41 connected to the movable end of the telescopic mechanism 1 and a gantry structure 42 connected to the bottom of the slewing drive 41. The slewing drive 41 is internally provided with a worm gear assembly, which rotates vertically. The gantry structure 42 is fixed to the bottom of the worm gear, and the bottom end of the gantry structure 42 is connected to the leveling outer frame 72 via the shock absorber 5. The slewing drive 41 uses a motor to drive the worm gear to rotate, which in turn drives the worm gear to rotate. This rotation of the worm gear drives the gantry structure 42 to rotate vertically, thereby driving the leveling mechanism 7 to rotate. This allows the construction width and length of the leveling mechanism 7 to be adjusted to match the movement speed of the transverse vehicle body 31 to achieve adaptive groove width.

[0028] like Figure 1 The telescopic mechanism 1 includes a telescopic drive mechanism 11 vertically fixedly connected to the longitudinally movable vehicle body 21. The output end of the telescopic drive mechanism 11 is vertically downwardly disposed and fixedly connected to a vertically disposed primary telescopic column 12. A secondary telescopic column 13 is vertically slidably connected to the bottom of the primary telescopic column 12. The slewing mechanism 4 is connected to the bottom end of the secondary telescopic column 13. When adjusting the height of the leveling mechanism 7, the telescopic mechanism 1 adjusts the height of the primary telescopic column 12 by controlling the extension length of the telescopic drive mechanism 11, and then adjusts the height of the leveling mechanism 7 via the secondary telescopic column 13.

[0029] like Figure 1 As shown. The telescopic drive mechanism 11 is arranged at the diagonal position of the longitudinal moving vehicle body 21. The first-level telescopic column 12 includes a first-level column 121 and a first-level guide block 122. The output end of the telescopic drive mechanism 11 is connected to the ear plate at the bottom of the outer wall of the first-level column 121. The top of the longitudinal moving trolley 21 is connected to the first-level guide block 122. The first-level guide block 122 is a truncated cone-shaped shell structure. The outer wall of the first-level column 121 is in contact with the inner wall of the first-level guide block 122. The telescopic drive mechanism 11 adopts a hydraulic cylinder. By controlling the synchronous extension and contraction of the movable ends of the two telescopic drive mechanisms 11, the first-level column 121 is driven to move vertically along the first-level guide block 122 to adjust the height of the first-level column 121.

[0030] like Figure 1 The secondary telescopic column 13 comprises a secondary column 132 and a secondary guide block 131. The secondary guide block 131 is arranged parallel to the secondary column 132. The top end of the secondary guide block 131 is vertically slidably connected to the bottom of the primary column 121, while the bottom end is fixedly connected to the secondary column 132. A hydraulic cylinder is installed within the primary column 121, and the movable end of the hydraulic cylinder is connected to the secondary column 132. The height of the secondary column 132 is adjusted by the hydraulic cylinder, and the secondary column 132 drives the slewing mechanism 4 to adjust its height, thereby achieving height adjustment of the leveling mechanism 7.

[0031] like Figure 1 As shown, the bottom of the transverse vehicle body 31 is fixedly connected to a transverse slider 32, which has a slot at the bottom that matches the transverse rail 33. The top of the transverse vehicle body 31 is mounted with a longitudinal rail, and the bottom of the longitudinal vehicle body 21 is fixed with a longitudinal slider 22 that matches the longitudinal rail. The matching of the transverse slider 32 with the transverse rail 33 and the matching of the longitudinal slider 22 with the longitudinal rail ensures the stability of the installation of the transverse vehicle body 31 and the longitudinal vehicle body 21.

[0032] like Figure 4 and Figure 5 As shown. The walking assembly includes a mounting shaft 92 that is horizontally rotatably connected to the end of the transverse track 33. The mounting shafts 92 are arranged in pairs, and the two mounting shafts 92 are connected by a sprocket transmission member 93. A driving member that drives the mounting shaft 92 to rotate is installed on the transverse track 33. A support wheel 94 is fixedly connected to the mounting shaft 92. A sliding groove is provided on the side wall of the track 91. The support wheel 94 is rotatably arranged inside the sliding groove. A limiting protrusion is provided at the opening of the sliding groove. The driving member installed on the track 91 drives one mounting shaft 92 to rotate, and the two mounting shafts 92 are driven by the sprocket transmission member 93 to achieve synchronous and unidirectional rotation of the two mounting shafts 92, thereby driving the support wheel 94 to rotate. The support wheel 94 drives the transverse track 33 to move along the track 91. The stability of the transverse track 33 moving along the track 91 is ensured by the adaptation of the sliding groove inside the track 91 to the support wheel 94 and the limiting protrusion to the support wheel 94.

[0033] like Figure 5 An encoder 95 is fixedly mounted on the inner side of the transverse track 33, and the input end of the encoder 95 is in driving connection with the mounting shaft 92. During continuous tamping of the trench, the movement distance of the transverse track 33 needs to be controlled. The encoder 95 detects the number of rotations of the mounting shaft 92, and the detection result is fed back to the drive element of the mounting shaft 92 to ensure that the transverse track 33 can move to the set position for precise trench tamping.

[0034] A construction method of a vibration compaction mechanism comprises the following steps: Step 1: Start the telescopic mechanism 1, extend the telescopic mechanism 1, and drive the leveling mechanism 7 to move downward, so that the leveling mechanism 7 contacts the bottom of the groove, and control the telescopic mechanism 1 to stop when contacting; Step 2: Start the self-propelled assembly 9, which drives the transverse slide rail 33 to move to the end of the groove, and then controls the transverse vehicle body 31 to move along the transverse track 33. During the transverse movement, the leveling mechanism 7 is controlled to perform tamping on the bottom of the groove. Step 3: After the transverse vehicle body 31 moves to one edge of the trench, the self-propelled assembly 9 is started to move along the track 91. The moving distance is controlled to be the length of the construction of the leveling mechanism 7. After reaching the set moving distance, the self-propelled assembly 9 is stopped and the transverse vehicle body 31 is controlled to move toward the other side of the trench to perform tamping work on the trench bottom. Step 4: Repeat steps 2 and 3 until the bottom of the entire trench is compacted.

Claims

1. A vibration compaction mechanism, characterized in that: The invention comprises a transverse moving car body (31) connected to a transverse moving track (33) by transverse sliding, a longitudinal moving car body (21) connected to the top of the transverse moving car body (31) by longitudinal sliding, and a telescopic mechanism (1) fixed to the longitudinal moving car body (21). The movable end at the bottom of the telescopic mechanism (1) is connected to a leveling mechanism (7) with adjustable width by rotation through a rotary mechanism (4). The end of the transverse moving rail (33) is connected to a track (91) arranged along a groove by sliding. The end of the transverse moving rail (33) is provided with a self-propelled component (9) for driving the transverse moving rail (3) to move along the track (91).

2. A vibration compaction mechanism according to claim 1, characterized in that: The leveling mechanism (7) includes a leveling outer frame (72) at the bottom and telescopic baffles (71) slidably connected to opposite sides of the leveling outer frame (72). A vibrator (6) is installed on the top of the leveling outer frame (72), and a shock absorber (5) is connected between the leveling outer frame (72) and the rotary mechanism (41).

3. A vibration compaction mechanism according to claim 2, characterized in that: The slewing mechanism comprises a slewing driver (41) connected to the movable end of the telescopic mechanism (1) and a gantry structure (42) connected to the bottom of the slewing driver (41). A worm gear set is provided inside the slewing driver (41), and the worm gear is arranged to rotate vertically. The gantry structure (42) is fixed to the bottom of the worm gear. The bottom end of the gantry structure (42) is connected to the leveling outer frame (72) through the shock absorber (5).

4. A vibration compaction mechanism according to claim 1, characterized in that: The telescopic mechanism (1) includes a telescopic drive mechanism (11) vertically fixedly connected to the longitudinally movable vehicle body (21), the output end of the telescopic drive mechanism (11) is vertically arranged downward, the output end of the telescopic drive mechanism (11) is fixedly connected to a vertically arranged first-stage telescopic column (12), the bottom of the first-stage telescopic column (12) is vertically slidably connected to a second-stage telescopic column (13), and the rotary mechanism (4) is connected to the bottom end of the second-stage telescopic column (13).

5. A vibration compaction mechanism according to claim 4, characterized in that: The telescopic drive mechanism (11) is arranged at the diagonal position of the longitudinal moving vehicle body (21); the first-level telescopic column (12) includes a first-level column (121) and a first-level guide block (122); the output end of the telescopic drive mechanism (11) is connected to the ear plate at the bottom of the outer wall of the first-level column (121); the top of the longitudinal moving vehicle (21) is connected to the first-level guide block (122); the first-level guide block (122) is a truncated cone-shaped shell structure; the outer wall of the first-level column (121) is in contact with the inner wall of the first-level guide block (122).

6. A vibration compaction mechanism according to claim 5, characterized in that: The secondary telescopic column (13) comprises a secondary column (132) and a secondary guide block (131). The secondary guide block (131) is arranged parallel to the secondary column (132). The top end of the secondary guide block (131) is vertically slidably connected to the bottom end of the primary column (121), and the bottom end is fixedly connected to the secondary column (132).

7. A vibration compaction mechanism according to claim 1, characterized in that: The bottom of the transverse moving vehicle body (31) is fixedly connected to a transverse moving slider (32), and a slot adapted to the transverse moving rail (33) is provided at the bottom of the transverse moving slider (32). A longitudinal moving rail is installed on the top of the transverse moving vehicle body (31), and a longitudinal moving slider (22) adapted to the longitudinal moving rail is fixed to the bottom of the longitudinal moving vehicle body (21).

8. A vibration compaction mechanism according to claim 1, characterized in that: The walking assembly includes a mounting shaft (92) horizontally rotatably connected to the end of the transverse track (33), the mounting shafts (92) are arranged in pairs, and the two mounting shafts (92) are connected to each other through a sprocket transmission member (93), a driving member for driving the mounting shaft (92) to rotate is installed on the transverse track (33), and a support wheel (94) is fixedly connected to the mounting shaft (92), a slide groove is opened on the side wall of the track (91), and the support wheel (94) is rotatably arranged inside the slide groove, and a limiting protrusion is provided at the opening of the slide groove.

9. A vibration compaction mechanism according to claim 8, characterized in that: An encoder (95) is fixedly mounted on the inner side of the transverse track (33), and an input end of the encoder (95) is transmission-connected to the mounting shaft (92).

10. A construction method of a vibration compaction mechanism as claimed in claim 1, characterized in that: The steps include: Step 1: Start the telescopic mechanism (1), the telescopic mechanism (1) extends, and drives the leveling mechanism (7) to move downward, so that the leveling mechanism (7) contacts the bottom of the groove, and controls the telescopic mechanism (1) to stop when the contact occurs; Step 2: Start the self-propelled component (9), which drives the transverse slide rail (33) to move to the end of the groove, and then controls the transverse vehicle body (31) to move along the transverse track (33), and controls the leveling mechanism (7) to perform tamping work on the bottom of the groove during the transverse movement; Step 3: After the transverse vehicle body (31) moves to one side edge of the groove, the self-propelled component (9) is started to move along the track (91), and the moving distance is controlled to be the length of the construction of the leveling mechanism (7). After reaching the set moving distance, the self-propelled component (9) is stopped, and the transverse vehicle body (31) is controlled to move toward the other side of the groove to perform tamping construction on the bottom of the groove; Step 4: Repeat steps 2 and 3 until the bottom of the entire trench is compacted.

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