A roadbed tamping device

Abstract

The present application relates to ramming device technical field, especially a kind of roadbed ramming device, comprising: tamping subassembly, including rammer main body, the tamper head of being set to rammer main body end, the cover of being set to tamper head outer periphery and the through-hole of being opened in cover end face;Dustproof component, including pedestal being set to cover outer side, atomizing nozzle being set to through-hole port and pump pressure piece being set to pedestal interior;Positioning component, including baffle being set to cover bottom;Transmission component, including penetratingly set to cover outer wall shaft, extrusion block being set to shaft end and vertical rod being set to tamper head top;Noise reduction component, including rubber plate being set to cover inner wall, rotating frame being set to rubber plate inner surface and fur pad being set to rotating frame;Pedestal and atomizing nozzle are interconnected, shaft reciprocating motion by tamper head drives pump pressure piece for supplying liquid to atomizing nozzle to spray;Realize the synchronous inhibition of construction dust and noise.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ramming devices, in particular to a roadbed ramming device. BACKGROUND

[0002] The ramming device is a mechanical equipment for impact compaction of loose soil, which usually includes a rammer main body and a ramming head connected thereto, and the ramming head is reciprocated up and down to apply impact force to the ground, thereby improving the compactness and bearing capacity of the soil, and is widely used in roadbed, foundation and other engineering scenes.

[0003] In actual use, repeated impact of the ramming head on the soil will cause the surface soil particles to be thrown up and form a large amount of dust, and at the same time, due to the concentrated release of impact force, it will also be accompanied by obvious structural noise and air propagation noise, which not only affects the working environment, but also easily has adverse effects on the surrounding area, so it is usually necessary to control the dust and noise during the operation of the rammer.

[0004] The existing way to control the dust and noise of the rammer mostly adopts the way of external sprinkling pipe, manual water spraying or additional soundproof baffle to realize, which lacks mechanical linkage relationship with the rammer body, resulting in asynchronous sprinkling and ramming, and deviation of the sprinkling area and the ramming point, which not only increases the construction complexity, but also is difficult to effectively suppress dust and impact noise at the moment of ramming, so that the dust and noise control effect is unstable. SUMMARY

[0005] In view of the above or the problem in the prior art that how to realize dust and noise reduction control synchronized with the ramming action while the roadbed ramming device is performing ramming operation without increasing independent power and control system, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide a roadbed ramming device.

[0007] To solve the above technical problems, the present application provides the following technical solutions:

[0008] A roadbed ramming device, comprising:

[0009] A ramming assembly, comprising a rammer main body, a ramming head arranged at the end of the rammer main body, a cover arranged at the outer periphery of the ramming head, and a through hole arranged at the end face of the cover;

[0010] A dustproof assembly, comprising a pedestal arranged outside the cover, an atomizing nozzle arranged at the port of the through hole, and a pump pressure device arranged inside the pedestal;

[0011] A positioning assembly, comprising a baffle arranged at the bottom of the cover;

[0012] The transmission assembly comprises a shaft penetrating the outer wall of the shell, an extrusion block arranged at the end of the shaft and a vertical rod arranged at the top of the tamper head.

[0013] The noise reduction assembly comprises a rubber plate arranged on the inner wall of the shell, a rotating frame arranged on the inner surface of the rubber plate and a fur pad arranged on the rotating frame.

[0014] The pedestal and the atomizing nozzle are in communication with each other, the shaft drives the pump component to supply liquid to the atomizing nozzle for spraying through the up-down reciprocating movement of the tamper head, the rotating frame is arranged on the outer surface of the shaft, and the shaft drives the rotating frame to rotate simultaneously.

[0015] As a preferred scheme of the roadbed tamper device, the tamper head is arranged in the shell and connected with the output end of the tamper head, and a handrail is arranged on the outer wall of the top of the tamper head.

[0016] As a preferred scheme of the roadbed tamper device, the outer wall of the port of the through hole is provided with a valve seat, the outer end surface of the valve seat is an inclined surface facing the ground, the atomizing nozzle is arranged in an array and distributed on the outer end surface of the valve seat, a connecting pipe is arranged in communication between the pump component and the valve seat, and the atomizing nozzle and the valve seat are in communication with each other.

[0017] As a preferred scheme of the roadbed tamper device, the pump component comprises a water supply groove longitudinally arranged on the top surface of the pedestal, a hydraulic groove arranged on the side wall of the middle part of the water supply groove and a one-way valve arranged on the upper and lower ends of the water supply groove, a water tank in communication with the water supply groove is arranged on the top of the pedestal, and the connecting pipe is in communication with the bottom end of the water supply groove.

[0018] As a preferred scheme of the roadbed tamper device, the movable groove is arranged on one side surface of the shell and the extrusion block is arranged in the movable groove, a guide cylinder is arranged on the inner wall of the movable groove, a positioning rod is arranged on the end surface of the extrusion block, the positioning rod is arranged in the guide cylinder and axially slides relative to each other, the positioning rod and the guide cylinder are circumferentially clamped, and a strong spring is arranged between the end surface of the extrusion block and the inner wall of the movable groove.

[0019] As a preferred scheme of the roadbed tamper device, the hydraulic groove is in communication with the movable groove, a piston is arranged in the hydraulic groove, a push rod is arranged on the outer wall of the piston, the other end of the push rod is arranged in the movable groove and provided with a roller, a reset spring is arranged between the roller and the inner wall of the movable groove, the reset spring is wound on the outer surface of the push rod, the roller is attached to the side surface of the extrusion block, and each side surface of the extrusion block is an inclined surface.

[0020] As a preferred scheme of the roadbed tamping device, the bottom surface of the pedestal is provided with a square groove accommodating the baffle, the inner wall of the bottom end of the square groove is horizontally provided with a walking wheel, the baffle is located above the walking wheel and is provided with a notch corresponding to the baffle, the inner wall of the movable groove is provided with a sleeve hole communicating with the square groove, the top of the baffle is provided with a connecting rod penetrating the sleeve hole, the end of the connecting rod is provided with a guide wheel matched with the side wall of the extrusion block, and a supporting spring is arranged between the guide wheel and the inner wall of the movable groove and wound on the outer surface of the connecting rod.

[0021] As a preferred scheme of the roadbed tamping device, the inner wall of the cover is provided with a mounting hole, the rubber plate is arranged at the inner side port of the mounting hole, the outer surface of the rubber plate is provided with a biasing block, the inner circumferential surface of the mounting hole is provided with an annular groove, the rotating frame is located inside the mounting hole, the outer edge of the rotating frame is slidingly arranged inside the annular groove, the end surface of the fur skin pad is matched with the surface of the rubber plate, and the inner wall of the cover is hollow and provided with sound-absorbing cotton.

[0022] As a preferred scheme of the roadbed tamping device, the center of the rotating frame is provided with a circular hole penetrating the shaft rod, the inner wall of the circular hole is provided with a limiting sliding block, and the outer surface of the shaft rod is provided with a threaded sliding surface.

[0023] As a preferred scheme of the roadbed tamping device, one end of the shaft rod located inside the cover is arranged on the driving block, the top of the vertical rod is rotatably provided with a pulley, the driving block is located at the top of the pulley, the outer end surface of the driving block is a slope, and the pulley is matched with the outer end surface of the driving block.

[0024] The roadbed tamping device has the following advantages:

[0025] The tamping head movement is converted into spraying, locking and internal rotation friction actions, so that the dust and noise reduction functions are mechanically linked with the tamping action, thereby realizing synchronous inhibition of construction dust and noise without relying on additional power or control system.

[0026] The pump pressure part is driven by the tamping head movement, so that the atomizing nozzle sprays water mist to the through hole and the tamping area at the moment of tamping, thereby forming a wetting and isolation layer at the dust source, effectively inhibiting dust diffusion.

[0027] The walking wheel is locked by the baffle driven by the tamping head, so that the equipment remains stable during the tamping stage, and the gap between the walking wheel and the ground is closed, reducing the noise leakage channel.

[0028] The rotation frame is driven by the shaft to drive the fur pad to rub against the rubber plate to generate static electricity, and the sound absorbing cotton and the sound deflection block are used to adsorb, absorb and disperse the dust particles and sound waves in the shell, so as to further reduce the dust suspension and noise propagation intensity.

[0029] Each function is directly driven by the reciprocating motion of the tamper head, so that the spraying intensity, locking degree and rotary friction state automatically change with the tampering rhythm, realizing self-adaptive adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 The overall structure of the roadbed tamper device is shown in the figure.

[0032] Figure 2 The bottom view of the roadbed tamper device is shown in the figure.

[0033] Figure 3 The tamper head structure of the roadbed tamper device is shown in the figure.

[0034] Figure 4 The shell structure of the roadbed tamper device is shown in the figure.

[0035] Figure 5 The noise reduction assembly structure of the roadbed tamper device is shown in the figure.

[0036] Figure 6 The pedestal structure of the roadbed tamper device is shown in the figure.

[0037] Figure 7 The pump pressure structure of the roadbed tamper device is shown in the figure.

[0038] Figure 8 The extrusion block structure of the roadbed tamper device is shown in the figure.

[0039] Wherein: 1, tamping assembly; 11, tamper main body; 12, tamper head; 13, cover; 14, through hole; 15, handrail; 2, dustproof assembly; 21, pedestal; 22, water tank; 23, valve seat; 24, atomizing nozzle; 25, connecting pipe; 26, movable slot; 27, pump pressure piece; 271, water supply groove; 272, one-way valve; 273, hydraulic groove; 274, push rod; 275, piston; 276, roller; 277, return spring; 3, positioning assembly; 31, square groove; 32, walking wheel; 33, baffle; 34, sleeve hole; 35, connecting rod; 36, guide wheel; 37, supporting spring; 4, transmission assembly; 41, vertical rod; 42, pulley; 43, drive block; 44, shaft; 45, extrusion block; 46, threaded sliding; 47, guide cylinder; 48, strong spring; 49, positioning rod; 5, noise reduction assembly; 51, rubber plate; 52, off-block; 53, mounting hole; 54, rotating frame; 55, limit sliding block; 56, fur pad; 57, ring groove; 58, sound-absorbing cotton. DETAILED DESCRIPTION

[0040] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0041] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0042] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in this specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments. Embodiment 1

[0043] Reference Figures 1 to 8 For the first embodiment of the present application, the embodiment provides a roadbed tamping device, which comprises a tamping assembly 1, a dustproof assembly 2, a positioning assembly 3, a transmission assembly 4 and a noise reduction assembly 5, and realizes comprehensive suppression of dust and noise in the roadbed tamping process.

[0044] Specifically, the tamping assembly 1 comprises a tamper main body 11, a tamper head 12 arranged at the end of the tamper main body 11, a cover 13 arranged at the outer periphery of the tamper head 12, and a through hole 14 opened at the end surface of the cover 13, the tamper main body 11 is used to provide power for the tamper head 12, the tamper head 12 is used to periodically impact the roadbed, and the cover 13 is used to form a closed working space around the tamper head 12.

[0045] The dustproof assembly 2 comprises a pedestal 21 arranged outside the cover 13, an atomizing nozzle 24 arranged at the port of the through hole 14, and a pump pressure component 27 arranged inside the pedestal 21, the atomizing nozzle 24 is used for spraying the atomized liquid towards the ground, and the pump pressure component 27 is used for pressurizing the liquid under the driving of the ramming action.

[0046] The positioning assembly 3 comprises a baffle 33 arranged at the bottom of the cover 13, the baffle 33 is used for limiting the walking state of the whole machine during the ramming process, so as to ensure the stability of the position of the device as a whole during ramming.

[0047] The transmission assembly 4 comprises a shaft 44 penetratingly arranged outside the outer wall of the cover 13, an extrusion block 45 arranged at the end of the shaft 44, and a vertical rod 41 arranged at the top of the rammer head 12, the vertical rod 41 moves up and down with the rammer head 12 and is converted into a transverse driving force to the shaft 44, and the shaft 44 is used for transmitting the driving force to other assemblies.

[0048] The noise reduction assembly 5 comprises a rubber plate 51 arranged inside the inner wall of the cover 13, a rotating frame 54 arranged on the inner surface of the rubber plate 51, and a fur pad 56 arranged on the rotating frame 54, the fur pad 56 can absorb part of the sound waves due to its material, the surface of the rubber plate 51 disperses the sound waves, and the rotating frame 54 is used for bearing the fur pad 56 and rotating under the driving of the shaft 44 to generate static electricity to attract and float the dust by rubbing the rubber plate 51.

[0049] The pedestal 21 and the atomizing nozzle 24 are in communication with each other, the shaft 44 drives the pump pressure component 27 for supplying liquid to the atomizing nozzle 24 for spraying through the up-and-down reciprocating movement of the rammer head 12, the rotating frame 54 is arranged on the outer surface of the shaft 44, and the shaft 44 drives the rotating frame 54 to rotate the fur pad 56 at the same time.

[0050] In use, the rammer main body 11 drives the rammer head 12 to move up and down reciprocally to realize the compaction of the roadbed, the rammer head 12 pushes the driving block 43 through the pulley 42 at the top end of the vertical rod 41 during the movement process, the driving block 43 can convert the sliding friction into rolling friction to reduce the resistance, the outer end surface of the driving block 43 is an inclined surface, the driving block 43 moves in a transverse straight line under the pushing of the driving block 43, the driving block 43 pushes the extrusion block 45 through the shaft 44, the extrusion block 45 pushes the roller 276 and the guide wheel 36 through the inclined surface of the side wall;

[0051] Roller 276 pushes piston 275 through push rod 274, the movement of piston 275 inside hydraulic tank 273 forms air pressure, the one-way valve 272 at the lower end of water tank 271 opens under pressure, the liquid inside water tank 271 is sent to valve seat 23 through connecting pipe 25, and is sprayed by atomizing nozzle 24 towards the ground, first, the water mist covers the through hole 14, avoiding the spread of dust, and at the same time, wetting the subsequent roadbed to avoid the generation of dust, second, the water mist cover can isolate sound waves to a certain extent, and inhibit the size of noise;

[0052] Guide wheel 36 pushes baffle 33 through connecting rod 35, baffle 33 descends and contacts with walking wheel 32 to generate friction resistance, locking walking wheel 32 to prevent it from rotating, ensuring that the device as a whole will not be displaced during tamping, and at the same time, baffle 33 descends to block the gap on the ground caused by walking wheel 32, baffle 33 isolates sound waves to a certain extent, and inhibits the propagation of noise;

[0053] Shaft 44 forces limit slider 55 of rotating frame 54 to move along threaded slide 46 during movement, and then makes rotating frame 54 rotate along ring groove 57, rotating frame 54 drives fur pad 56 to rub with rubber plate 51, and rubber plate 51 generates static electricity under the friction of fur pad 56, which can adsorb particles floating within the cover shell 13, accelerate the settlement of dust and avoid the spread of dust;

[0054] Fur pad 56 and sound-absorbing cotton 58 can absorb part of the sound waves due to their own materials, and biasing block 52 on the surface of rubber plate 51 disperses sound waves, which can inhibit the propagation of noise.

[0055] In summary, by converting the tamping movement of tamper head 12 into three actions of spraying liquid, bottom locking and rotating friction inside cover shell 13, the suppression of dust diffusion and noise propagation is completed at the same time of performing roadbed tamping, wherein the water mist curtain formed by spraying first constitutes physical isolation at through hole 14 and moistens the tamping area to reduce dust generation, the descent of baffle 33 blocks the noise propagation path by eliminating the gap between walking wheel 32 and the ground and improves the stability of the equipment, and the static electricity generated by the friction of fur pad 56 and rubber plate 51 and the sound-absorbing performance of the materials themselves further process the suspended particles and sound waves inside cover shell 13, so that self-adaptive dust and noise reduction based on tamping rhythm can be realized without relying on external electricity. Embodiment 2

[0056] Reference Figures 1 to 8 The second embodiment of the present application provides structural optimization of the tamping assembly 1 and the dust prevention assembly 2 of the roadbed tamping device, which is different from the previous embodiment.

[0057] Specific, tamper body 11 is installed on the top of the cover 13, tamper head 12 is located inside the cover 13 and is connected with the output end of the tamper head 12, the top outer wall of the tamper head 12 is provided with a handrail 15, the handrail 15 is convenient for the construction personnel to guide the control of the device.

[0058] The outer wall of the port of the through hole 14 is provided with a valve seat 23, the outer end face of the valve seat 23 is an inclined surface facing the ground, the atomizing nozzle 24 is provided with a plurality of and arrayed on the outer end face of the valve seat 23, the pump pressure piece 27 is communicated with the valve seat 23 and is provided with a connecting pipe 25, the atomizing nozzle 24 is communicated with the valve seat 23, the atomizing nozzle 24 expands the spray coverage and forms a uniform water curtain.

[0059] The pump pressure piece 27 includes a water supply groove 271 longitudinally opened on the top surface of the pedestal 21, a hydraulic groove 273 opened on the side wall of the middle part of the water supply groove 271, and a one-way valve 272 arranged on the upper and lower ends of the water supply groove 271, the top of the pedestal 21 is provided with a water tank 22 communicated with the water supply groove 271, the connecting pipe 25 is communicated with the bottom end of the water supply groove 271, the one-way valve 272 realizes the one-way flow control of the liquid, the water tank 22 enables the external liquid to be continuously supplemented to the water supply groove 271, and the connecting pipe 25 ensures that the pressurized liquid can be delivered to the atomizing nozzle 24.

[0060] The pedestal 21 is provided with a movable groove 26 on one side surface of the cover 13, the extrusion block 45 is located in the inside of the movable groove 26, the inner wall of the movable groove 26 is provided with a guide cylinder 47, the end face of the extrusion block 45 is provided with a positioning rod 49, the positioning rod 49 is located in the inside of the guide cylinder 47 and axially slides between each other, the positioning rod 49 is circumferentially clamped between the guide cylinder 47, the strong spring 48 is arranged between the end face of the extrusion block 45 and the inner wall of the movable groove 26, the extrusion block 45 is located in the inside of the movable groove 26 to receive the thrust force from the shaft 44, and the strong spring 48 enables the extrusion block 45 to be automatically reset after the external force disappears.

[0061] The hydraulic groove 273 is communicated with the movable groove 26, the inside of the hydraulic groove 273 is provided with a piston 275, the outer wall of the piston 275 is provided with a push rod 274, the other end of the push rod 274 is located in the movable groove 26 and is provided with a roller 276, the roller 276 is provided with a reset spring 277 between the inner wall of the movable groove 26, the reset spring 277 is wound on the outer surface of the push rod 274, the roller 276 is attached to the side surface of the extrusion block 45, each side surface of the extrusion block 45 is an inclined surface, the roller 276 makes the push rod 274 produce low-resistance rolling contact under the action of the inclined surface of the extrusion block 45, and the reset spring 277 enables the roller 276 to be automatically reset after unloading.

[0062] The remaining structures are the same as those of example 1.

[0063] In use, the rammer main body 11 drives the ram head 12 to impact the roadbed periodically inside the cover 13, the movement of the ram head 12 is converted into a transverse thrust on the shaft 44 through the vertical rod 41, the pulley 42 and the driving block 43, so that the shaft 44 generates a reciprocating linear motion at each ramming, which is transmitted to the roller 276 and the guide wheel 36 through the inclined surface of the extrusion block 45, wherein the roller 276 drives the push rod 274 to move the piston 275 in the hydraulic tank 273, so that the liquid in the water tank 22 is continuously sent into the connecting pipe 25 and finally sprayed out by the atomizing nozzle 24 to form uniform water mist under the cooperation of the water supply tank 271 and the one-way valve 272, and the guide wheel 36 drives the baffle 33 to press down the walking wheel 32 through the connecting rod 35 to realize the locking function, so that the device does not move during the ramming stage, and because the inclined surface and the rolling structure are matched between the pump pressure part 27 and the extrusion block 45, the spraying pressure can change with the ramming amplitude.

[0064] In summary, the embodiment 2 makes the liquid pressurization process more stable and controllable, and makes the spraying amount of the atomizing nozzle 24 consistent with the actual ramming state of the ram head 12, so as to provide more dense water mist to suppress violent dust raising during dynamic compaction, and reduce unnecessary water consumption during light compaction, while the linkage locking of the baffle 33 still ensures that the device does not slip during ramming, so that the spraying coverage area always corresponds to the ramming point. Embodiment 3

[0065] Reference Figures 1 to 8 For the third embodiment of the application, unlike the previous embodiment, the third embodiment provides structural optimization of the positioning assembly 3, the transmission assembly 4 and the noise reduction assembly 5 of the roadbed ramming device to improve the overall stability and noise control ability.

[0066] Specifically, the bottom surface of the pedestal 21 is provided with a square groove 31 accommodating the baffle 33, the inner wall of the bottom end of the square groove 31 is horizontally arrayed with the walking wheel 32, the baffle 33 is located above the walking wheel 32 and is correspondingly provided with a notch, the inner wall of the movable groove 26 is provided with a sleeve hole 34 communicating with the square groove 31, the top of the baffle 33 is provided with a connecting rod 35 penetrating the sleeve hole 34, the end of the connecting rod 35 is provided with a guide wheel 36 abutting against the side wall of the extrusion block 45, the guide wheel 36 and the inner wall of the movable groove 26 are provided with a supporting spring 37, the supporting spring 37 is wound on the outer surface of the connecting rod 35, the walking wheel 32 moves the device in a non-ramming state, and the supporting spring 37 keeps the baffle 33 in a raised state without extrusion force.

[0067] The inner wall of the cover 13 is provided with a mounting hole 53, and a rubber plate 51 is arranged at the inner side port of the mounting hole 53. The outer surface of the rubber plate 51 is arranged with a sound deflection block 52. The inner circumferential surface of the mounting hole 53 is provided with a ring groove 57. A rotating frame 54 is located inside the mounting hole 53. The outer edge of the rotating frame 54 is slidingly arranged inside the ring groove 57. The end surface of a fur pad 56 is attached to the surface of the rubber plate 51. The inner wall of the cover 13 is hollow and is provided with sound-absorbing cotton 58. The sound deflection block 52 breaks the sound wave reflection path, and the sound-absorbing cotton 58 causes the sound wave to be absorbed and attenuated.

[0068] A circular hole is formed in the center of the rotating frame 54 for the shaft 44 to penetrate. The inner wall of the circular hole is provided with a limiting sliding block 55. The outer surface of the shaft 44 is provided with a threaded sliding part 46. The limiting sliding block 55 is located inside the threaded sliding part 46 and is slidingly attached. The linear displacement of the shaft 44 is converted into the circumferential movement of the rotating frame 54.

[0069] One end of the shaft 44 located inside the cover 13 is arranged on a driving block 43. The top of the vertical rod 41 is rotatably provided with a pulley 42. The driving block 43 is located on the top of the pulley 42. The outer end surface of the driving block 43 is inclined. The pulley 42 is attached to the outer end surface of the driving block 43. The driving block 43 enables the power from the rammer head 12 to be transmitted to the shaft 44. The pulley 42 reduces friction,

[0070] The remaining structures are the same as those of Example 2.

[0071] In use, when the device needs to be moved, the walking wheel 32 is in a free state to facilitate the construction personnel to push the equipment to the designated position. When the rammer main body 11 is started, the up-down movement of the rammer head 12 is transmitted to the shaft 44 through the vertical rod 41, the pulley 42 and the driving block 43, so that the shaft 44 drives the extrusion block 45 to displace. The extrusion block 45 drives the baffle 33 to enter the square groove 31 downward through the guide wheel 36 and the connecting rod 35 and press the walking wheel 32, so that the walking wheel 32 and the ground form a frictional lock, thereby preventing the equipment from being displaced due to the reaction force during the ramming stage. At the same time, the shaft 44 also drives the dustproof assembly 2 to link with the rotating frame 54, so that the atomizing nozzle 24 sprays water mist to cover the through hole 14 and the ramming area during ramming. The rotating frame 54 drives the fur pad 56 to rotate and rub on the surface of the rubber plate 51 to generate static electricity, and cooperates with the sound-absorbing cotton 58 and the sound deflection block 52 to process the dust particles and sound waves inside the cover 13, so as to maintain a low dust and noise level while ramming the roadbed.

[0072] In summary, the device has the mobility while automatically completing the stable locking in the ramming stage, and cooperates with the multi-layer acoustic and electrostatic processing structure in the cover 13, so that the spray, water mist isolation, mechanical limiting and sound wave absorption form a highly synergistic effect. The movement of the ram head 12 is the only power input to drive all auxiliary functions, thereby realizing high stability, low dust and low noise operation effect in the roadbed ramming process without increasing the control complexity.

[0073] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A roadbed tamping device, characterized by, The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13).

2. The subgrade tamping device of claim 1, wherein: The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13).

3. The subgrade tamping device of claim 2, wherein: The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13).

4. The subgrade tamping device of claim 3, wherein: The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer body (11), a cover (13) arranged at the outer periphery of the ram head (12), and a through hole (14) arranged at the end face of the cover (13). The utility model relates to a rammer, which comprises a rammer body (11), a ram head (12) arranged at the end of the rammer 5. The subgrade tamping device of claim 4, wherein: The pedestal (21) is fitted with a movable slot (26) on one side surface of the cover (13), the extrusion block (45) is located inside the movable slot (26), the inner wall of the movable slot (26) is provided with a guide cylinder (47), the end surface of the extrusion block (45) is provided with a positioning rod (49), the positioning rod (49) is located inside the guide cylinder (47) and axially slides between each other, the positioning rod (49) is circumferentially clamped between the guide cylinder (47), and the end surface of the extrusion block (45) and the inner wall of the movable slot (26) are provided with a strong spring (48).

6. The subgrade tamping device of claim 5, wherein: The hydraulic tank (273) is communicated with the movable slot (26), the inside of the hydraulic tank (273) is provided with a piston (275), the outer wall of the piston (275) is provided with a push rod (274), the other end of the push rod (274) is located in the movable slot (26) and is provided with a roller (276), the roller (276) and the inner wall of the movable slot (26) are provided with a reset spring (277), the reset spring (277) is wound on the outer surface of the push rod (274), the roller (276) is fitted with the side surface of the extrusion block (45), and each side surface of the extrusion block (45) is a bevel surface.

7. The subgrade tamping device of claim 6, wherein: The bottom surface of the pedestal (21) is provided with a square slot (31) for accommodating the baffle (33), the bottom end inner wall of the square slot (31) is horizontally arranged with walking wheels (32), the baffle (33) is located above the walking wheels (32) and is provided with a notch in correspondence, the inner wall of the movable slot (26) is provided with a sleeve hole (34) communicated with the square slot (31), the top of the baffle (33) is provided with a connecting rod (35) penetrating the sleeve hole (34), the end of the connecting rod (35) is provided with a guide wheel (36) fitted with the side wall of the extrusion block (45), the guide wheel (36) and the inner wall of the movable slot (26) are provided with a supporting spring (37), and the supporting spring (37) is wound on the outer surface of the connecting rod (35).

8. The subgrade tamping device of claim 7, wherein: The inner wall of the cover (13) is provided with a mounting hole (53), the rubber plate (51) is arranged at the inner side port of the mounting hole (53), the outer surface of the rubber plate (51) is arranged with a biasing block (52), the inner circumferential surface of the mounting hole (53) is provided with an annular groove (57), the rotating frame (54) is located inside the mounting hole (53), the outer edge of the rotating frame (54) is slidingly arranged inside the annular groove (57), the end surface of the fur pad (56) is fitted with the surface of the rubber plate (51), and the inner wall of the cover (13) is hollow and provided with sound-absorbing cotton (58).

9. The subgrade tamping device of claim 8, wherein: The center of the rotating frame (54) is provided with a circular hole for penetrating the shaft rod (44), the inner wall of the circular hole is provided with a limiting sliding block (55), the outer surface of the shaft rod (44) is provided with a threaded sliding (46), and the limiting sliding block (55) is located inside the threaded sliding (46) and slidingly fitted.

10. The subgrade tamping device of claim 9, wherein: The shaft (44) is provided with a driving block (43) at one end inside the cover (13), the top of the vertical rod (41) is rotatably provided with a pulley (42), the driving block (43) is located at the top of the pulley (42), the outer end surface of the driving block (43) is a slope, and the pulley (42) is attached to the outer end surface of the driving block (43).

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