Pavement pit slot milling device

Abstract

The utility model provides a pavement pit slot milling device, and belongs to the technical field of construction engineering, the pavement pit slot milling device specifically comprises a frame and a milling mechanism, the milling mechanism comprises an adjusting assembly, the adjusting assembly comprises an adjusting rod, a plurality of limiting rods and a limiting ring, the adjusting rod is slidably connected to a sliding groove, and the limiting rings are arranged on the limiting rods. The multiple limiting rods are evenly distributed in the length direction of the adjusting rod, the number of the limiting rings is the same as that of the limiting rods, the limiting rings are arranged on an outer barrel of an inner cavity of the polishing roller and located on one side of the mounting hole, the tool apron is arranged in the mounting hole and located on the outer side of an outer barrel of the polishing roller, and the limiting rods sequentially penetrate through through holes in the tool apron and the limiting rings. A plurality of receding holes are evenly distributed in the connecting ring and correspond to the adjusting rods in position, and a limiting handle is arranged at one end of each adjusting rod and detachably connected with the connecting ring. By means of the treatment scheme, the milling replacement work efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of construction engineering equipment, and in particular to a road surface pothole milling device. Background Art

[0002] Pavement milling machine is one of the main types of machinery for asphalt pavement maintenance and construction, and one of the main equipment for asphalt concrete pavement maintenance and construction. It is mainly used for excavation and renovation of asphalt concrete surface layers in highways, urban roads, airports, freight yards, etc. It can also be used to remove road surface defects such as bulges, oil waves, reticulation, rutting, etc. It can also be used to excavate road potholes and grooves, as well as roughen cement pavement and mill out surface misalignment.

[0003] At present, the large milling devices on the market will wear out the milling after long-term use. The worn milling will lose control of the depth when hitting the road surface, which easily leads to inconsistent depth of the road surface after milling. Therefore, the milling needs to be replaced after a period of use. The process of replacing the milling is very troublesome. It requires manual removal of the worn milling one by one with professional tools, and then using external force to knock the new milling back into the installation hole.

[0004] The above operation process is not only time-consuming and laborious, but the external force applied to the milling machine during installation may also cause damage to the milling machine, which will also affect its service life during later use. Utility Model Content

[0005] In view of this, the present application provides a road pothole milling device, which solves the problem that the milling and disassembly process in the prior art is too troublesome, and improves the efficiency of milling and disassembly. The road pothole milling device provided in the present application adopts the following technical solution:

[0006] A road pothole milling device comprises a vehicle frame and a milling mechanism, wherein the milling mechanism comprises a driving assembly, a lifting assembly, a mounting assembly, an adjusting assembly and a crushing assembly, wherein the mounting assembly comprises a transmission shaft and a smooth roller, wherein the smooth roller comprises an inner cylinder, an outer cylinder and a connecting ring, wherein the diameter of the inner cylinder is smaller than the diameter of the outer cylinder, wherein the connecting ring is arranged at both ends of the inner cylinder and the outer cylinder, wherein a plurality of mounting holes are arranged on the surface of the outer cylinder of the smooth roller, wherein a plurality of sliding grooves are evenly distributed in the inner cavity of the smooth roller along the circumference of the inner cylinder of the smooth roller, wherein the adjusting assembly comprises an adjusting rod, a limiting rod and a limiting ring, and wherein the crushing assembly comprises a cutter seat and a cutter head;

[0007] A locking groove is provided on one side of the knife seat, a threaded hole is provided on the side wall of the locking groove, a through hole is provided on the side of the knife seat away from the locking groove, the knife head is arranged in the locking groove, and a bolt is provided in the threaded hole;

[0008] The adjusting rod is slidably connected to the sliding groove, and there are multiple limit rods, which are evenly distributed along the length direction of the adjusting rod. The limit rings are provided with the same number as the limit rods, and the limit rings are provided on the outer cylinder of the inner cavity of the polishing roller, located on one side of the mounting hole. The knife seat is provided in the mounting hole, located on the outside of the outer cylinder of the polishing roller. The limit rod passes through the through hole and the limit ring on the knife seat in sequence. The connecting ring is evenly distributed with multiple avoidance holes, which correspond to the positions of the adjusting rods. A limit handle is provided at one end of the adjusting rod, and the limit handle is detachably connected to the connecting ring.

[0009] By adopting the above technical scheme, the cutter head is installed in the embedded groove on the cutter seat, and after it is fixed and connected with bolts, first the position of a row of mounting holes on the smooth roller is adjusted to vertically upward, and the cutter seat is installed along the entire row of vertically upward mounting holes, and the adjusting rod is pushed by the limit handle, and the adjusting rod carries the limit rod through the through hole and the limit ring on the cutter seat in sequence. When a row of cutter seats are all connected with the limit rod, the limit handle is fixed on the connecting ring and then it can be put into use. During use, the cutter seat is limited in the mounting hole by the limit rod and will not fall off. When the cutter head and the cutter seat need to be replaced after long-term use, the limit handle is removed from the connecting ring, and the adjusting rod is pulled out through the limit handle. The limit rod closest to the limit handle will be in contact with the connecting ring. At this time, the limit rod is pulled out from the cutter seat, and then the cutter seat is taken out of the mounting hole to complete the replacement. The entire installation and disassembly process is very quick and convenient, which greatly improves the efficiency of replacing the cutter seat.

[0010] Optionally, a limiting groove is provided on the connecting ring between the plurality of avoidance holes, the limiting handle is rotatably connected to the end of the adjusting rod, and the limiting groove is used to limit the limiting handle.

[0011] By adopting the above technical scheme, the limit handle and the end of the adjusting rod are rotatably connected. Therefore, after the adjusting rod is pushed in and the limit rod is driven to be inserted into the through hole on the knife seat, the limit handle is flipped to be parallel to the connecting ring, and the limit handle is clamped in the limit groove, thereby ensuring the stability of the limit handle during work and further fixing the adjusting rod, thereby preventing the adjusting rod from slipping out of the avoidance hole during work, improving the safety of construction, and ensuring the personal safety of construction workers.

[0012] Optionally, the driving assembly includes an engine, a driving sprocket, a chain and a driven sprocket, the driving sprocket is arranged at the driving end of the engine, the driven sprocket is arranged at the end of the transmission shaft, and the chain is sleeved on the driving sprocket and the driven sprocket.

[0013] By adopting the above technical solution, the transmission shaft is driven by the chain and sprocket to drive the smooth roller to rotate, so that the cutter head can break the ground. During the driving process, the transmission of the chain and sprocket can effectively improve the conversion efficiency of the output power.

[0014] Optionally, the lifting assembly includes a hydraulic cylinder and a controller, there are two hydraulic cylinders, the two hydraulic cylinders are symmetrically arranged on the frame, the hydraulic cylinder includes a fixed part and a pushing part, the fixed part is fixedly connected to the frame, the pushing part is slidably connected to the fixed part, and the pushing part is vertically downward, the engine is arranged on the pushing part, the transmission shaft is rotatably connected to the pushing part, and the controller is arranged on the frame.

[0015] By adopting the above technical solution, the controller controls the lifting and lowering of the hydraulic cylinder. The hydraulic cylinder has extremely strong traction and can lift and lower particularly heavy drive shafts and smooth rollers. At the same time, the adjustable range of the hydraulic cylinder is very fine and can be adjusted according to the depth of the road surface that needs to be crushed and milled.

[0016] Optionally, the cutter head 5 is provided with a carbide blade.

[0017] By adopting the above technical solution, cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc. It can easily break the road surface when milling asphalt pavement, which greatly improves the efficiency of milling road surface.

[0018] Optionally, the frame is provided with tracks.

[0019] By adopting the above technical solution, the shapes and sizes of road potholes are different. When encountering long potholes that need to be milled and repaired, the crawler drives the frame and the milling mechanism to move, which can ensure its stability during movement and reduce the possibility of deviation from the preset direction.

[0020] Optionally, a flexible filling layer is provided on the limiting rod, and the diameter of the flexible filling layer is the same as the aperture of the through hole and the aperture of the limiting ring.

[0021] By adopting the above technical solution, the flexible filling layer is fully wrapped around the limit rod. The provision of the flexible material can not only effectively make the limit rod fully contact with the through hole and the limit ring, increase the friction between them, and make the contact more closely fitted, but also prevent rigid contact between the limit rod and the through hole and the limit ring, thereby avoiding damage to the mechanical structure.

[0022] In summary, the present application includes the following beneficial technical effects: the tool holder is effectively limited under the action of the adjusting rod and the limiting rod, and at the same time, with the filling and protection of the flexible material, the possibility of damage to the mechanical structure due to vibration generated during the working process is reduced, and the service life is extended. At the same time, with the action of the limiting handle and the limiting groove, a whole row of tool holders and tool heads can be easily adjusted, limited, fixed and disassembled, which greatly improves the efficiency of tool holder replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a road pothole milling device according to an embodiment of the present application.

[0025] Figure 2 It is a planar cross-sectional view of a road pothole milling device according to an embodiment of the present application.

[0026] Figure 3 for Figure 2 Schematic diagram of the enlarged portion A.

[0027] Figure 4 This is a planar cross-sectional view of a road pothole milling device from another perspective according to an embodiment of the present application.

[0028] Figure 5 This is a three-dimensional structural cross-sectional view of a road pothole milling device according to an embodiment of the present application.

[0029] Description of reference numerals: 1, frame; 11, crawler; 2, milling mechanism; 21, driving assembly; 211, engine; 212, driving sprocket; 213, chain; 214, driven sprocket; 22, lifting assembly; 221, hydraulic cylinder; 222, controller; 23, mounting assembly; 231, transmission shaft; 232, polishing roller; 2321, inner cylinder; 23211, sliding groove; 2322, outer cylinder; 23221 , mounting hole; 2323, connecting ring; 23231, avoidance hole; 24, adjustment component; 241, adjustment rod; 242, limit rod; 2421, flexible filling layer; 243, limit ring; 244, limit groove; 245, limit handle; 25, crushing component; 251, knife seat; 2511, embedding groove; 2512; threaded hole; 2513, through hole; 252, knife head; 2521, carbide blade. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0031] The following describes the implementation methods of the present application through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0032] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0034] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0035] The present application embodiment provides a road pothole milling device, referring to Figure 1-5, including a frame 1 and a milling mechanism 2, the milling mechanism 2 includes a driving assembly 21, a lifting assembly 22, a mounting assembly 23, an adjusting assembly 24 and a crushing assembly 25, the lifting assembly 22 includes a hydraulic cylinder 221 and a controller 222, a crawler 11 is installed on the bottom of the frame 1 by bolts, the controller 222 is installed on one side of the frame 1 by bolts, there are two hydraulic cylinders 221, the two hydraulic cylinders 221 are symmetrically arranged on both sides of the bottom of the frame 1, and are fixedly connected to the frame 1 by bolts, and the fixed push end of the hydraulic cylinder 221 is vertically downward.

[0036] Reference Figure 1-Figure 4 The mounting assembly 23 includes a transmission shaft 231 and a polishing roller 232. The polishing roller 232 includes an inner cylinder 2321, an outer cylinder 2322 and a connecting ring 2323. The top surface diameter of the inner cylinder 2321 is smaller than that of the outer cylinder 2322. The inner cylinder 2321 and the outer cylinder 2322 have the same height. After the inner cylinder 2321 and the outer cylinder 2322 are concentrically arranged, the connecting ring 2323 is placed on the top surface of the inner cylinder 2321 and the outer cylinder 2322 and welded to each other. The transmission shaft 231 The end face diameter is equal to the inner diameter of the inner cylinder 2321. The transmission shaft 231 is located at the center of the inner cylinder 2321 and is welded to the inner cylinder 2321. In the inner cavity of the polishing roller 232, a plurality of sliding grooves 23211 are welded evenly distributed in the circumference of the inner cylinder 2321. On the connecting ring 2323 at one end, an avoidance hole 23231 is opened at a position corresponding to the sliding groove 23211. A plurality of rows of mounting holes 23221 are evenly distributed in the circumferential direction on the surface of the outer cylinder 2322.

[0037] Reference Figure 2-Figure 4 The adjustment component 24 includes an adjustment rod 241, a limit rod 242, a limit ring 243, a limit groove 244 and a limit handle 245. The number of adjustment rods 241 is the same as the number of sliding grooves 23211, and the adjustment rod 241 is slidably connected to the sliding groove 23211. There are multiple limit rods 242, and multiple limit rods 242 are evenly welded along the length direction of the adjustment rod 241. A flexible filling layer 2421 is bonded to each limit rod 242. One end of the adjustment rod 241 close to the avoidance hole 23231 is rotatably connected to the limit handle 245. The limit ring 243 is welded to the inner cavity of the polishing roller 232, and is located on the side of the mounting hole 23221 away from the avoidance hole 23231. The limit groove 244 is opened between two adjacent avoidance holes 23231. The number of the limiting rod 242, the flexible filling layer 2421, the limiting ring 243 and the mounting holes 23221 in each row is the same; the number of the sliding groove 23211, the adjusting rod 241, the avoidance hole 23231, the limiting handle 245 and the limiting groove 244 is the same, and the flexible filling layer 2421 is a rubber layer.

[0038] Reference Figure 3The crushing assembly 25 includes a cutter seat 251 and a cutter head 252. A through hole 2513 is formed on one side of the cutter seat 251, and an embedding groove 2511 is formed on a side away from the through hole 2513. Threaded holes 2512 are formed at corresponding positions on the two side walls of the embedding groove 2511. The cutter head 252 includes a carbide blade 2521. The cutter head 252 with the carbide blade 2521 is placed in the embedding groove 2511. Bolts are passed through the threaded hole 2512, the cutter head 252 and the threaded hole 2512 on the other side in sequence to fix the cutter head 252 in the embedding groove 2511, and the cutter seat 251 is installed in the mounting hole 23221.

[0039] Reference Figure 5 The driving assembly 21 includes an engine 211, a driving sprocket 212, a chain 213 and a driven sprocket 214. The engine 211 is fixed to the top push part of the hydraulic cylinder 221 by bolts. The driving sprocket 212 is welded to the engine 211. The driven sprocket 214 is welded to the end of the transmission shaft 231 away from the limit handle 245. The chain 213 is sleeved on the driving sprocket 212 and the driven sprocket 214.

[0040] The implementation principle of the present application is as follows: first, the limiting handle 245 is taken out from the limiting groove 244 and the limiting handle 245 is pulled, and the limiting handle 245 drives the adjusting rod 241 to be pulled out, and at the same time, the adjusting rod 241 drives the limiting rod 242 to be pulled out from the limiting ring 243, and the installed knife seat 251 is placed in a whole row of installation holes 23221, and the position of the through hole 2513 is aligned with the limiting ring 243. When a whole row of knife seats 251 is installed, the limiting handle 245 is pushed in, and at this time, the limiting rod 242 passes through the through hole 2513 and the limiting ring 243 in sequence. The positioning ring 243 is installed, and the flexible filling layer 2421 fills the entire through hole 2513. At this time, the limiting handle 245 is locked again on the limiting groove 244. In this way, a whole row of knife seats 251 can be installed. When all knife seats 251 are installed, the crawler 11 drives the frame 1 to transport the milling mechanism 2 to the construction site. At this time, the engine 211 is started, and the transmission shaft 231 is driven to rotate through the chain 213 to drive the smooth roller 232 to rotate. The hydraulic cylinder 221 can adjust the contact depth between the knife head 252 and the ground. When the knife seat 251 needs to be replaced after the construction is completed or during long-term use, first control the hydraulic cylinder 221 to lift the smooth roller 232 to a suitable position, take the limiting handle 245 out of the limiting groove 244, and pull the adjusting rod 241. At this time, a whole row of knife seats 251 will fall from the installation hole 23221, which is very convenient and quick. The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A road pothole milling device, characterized in that: The invention comprises a vehicle frame (1) and a milling mechanism (2), wherein the milling mechanism (2) comprises a driving assembly (21), a lifting assembly (22), a mounting assembly (23), an adjusting assembly (24) and a crushing assembly (25), wherein the mounting assembly (23) comprises a transmission shaft (231) and a polishing roller (232), wherein the polishing roller (232) comprises an inner cylinder (2321), an outer cylinder (2322) and a connecting ring (2323), wherein the diameter of the inner cylinder (2321) is smaller than the diameter of the outer cylinder (2322), and the connecting ring (2323) is ) are arranged at both ends of the inner cylinder (2321) and the outer cylinder (2322); a plurality of mounting holes (23221) are arranged on the surface of the outer cylinder (2322) of the polishing roller (232); in the inner cavity of the polishing roller (232), a plurality of sliding grooves (23211) are evenly distributed along the circumference of the inner cylinder (2321) of the polishing roller (232); the adjusting component (24) comprises an adjusting rod (241), a limiting rod (242) and a limiting ring (243); and the crushing component (25) comprises a knife seat (251) and a knife head (252); A locking groove (2511) is provided on one side of the knife seat (251), a threaded hole (2512) is provided on the side wall of the locking groove (2511), a through hole (2513) is provided on the side of the knife seat (251) away from the locking groove (2511), the knife head (252) is arranged in the locking groove (2511), and a bolt is provided in the threaded hole (2512); The adjusting rod (241) is slidably connected to the sliding groove (23211), there are a plurality of limiting rods (242), and the plurality of limiting rods (242) are evenly distributed along the length direction of the adjusting rod (241), the limiting rings (243) are provided with the same number as the limiting rods (242), and the limiting rings (243) are provided on the outer cylinder (2322) of the inner cavity of the polishing roller (232), and are located on one side of the mounting hole (23221), and the knife seat (251) is provided on the mounting hole (23221) In the middle, located on the outside of the outer cylinder (2322) of the polishing roller (232), the limiting rod (242) passes through the through hole (2513) and the limiting ring (243) on the knife seat (251) in sequence, and a plurality of avoidance holes (23231) are evenly distributed on the connecting ring (2323), and the avoidance holes (23231) correspond to the positions of the adjusting rod (241). A limiting handle (245) is provided at one end of the adjusting rod (241), and the limiting handle (245) is detachably connected to the connecting ring (2323).

2. A road pothole milling device according to claim 1, characterized in that: A limiting groove (244) is provided on the connecting ring (2323) between the plurality of avoidance holes (23231); the limiting handle (245) is rotatably connected to the end of the adjusting rod (241); and the limiting groove (244) is used to limit the limiting handle (245).

3. A road pothole milling device according to claim 2, characterized in that: The driving assembly (21) comprises an engine (211), a driving sprocket (212), a chain (213) and a driven sprocket (214); the driving sprocket (212) is arranged at a driving end of the engine (211), the driven sprocket (214) is arranged at an end of the transmission shaft (231), and the chain (213) is sleeved on the driving sprocket (212) and the driven sprocket (214).

4. A road pothole milling device according to claim 3, characterized in that: The lifting assembly (22) comprises a hydraulic cylinder (221) and a controller (222). There are two hydraulic cylinders (221), and the two hydraulic cylinders (221) are symmetrically arranged on the frame (1). The hydraulic cylinder (221) comprises a fixed part and a pushing part. The fixed part is fixedly connected to the frame (1), and the pushing part is slidably connected to the fixed part, and the pushing part is vertically downward. The engine (211) is arranged on the pushing part, and the transmission shaft (231) is rotatably connected to the pushing part. The controller (222) is arranged on the frame (1).

5. The road pothole milling device according to claim 1, characterized in that: The cutter head (252) is provided with a hard alloy blade (2521).

6. A road surface pothole milling device according to claim 1, characterized in that: The vehicle frame (1) is provided with a crawler track (11).

7. A road pothole milling device according to claim 1, characterized in that: A flexible filling layer (2421) is provided on the limiting rod (242), and the diameter of the flexible filling layer (2421) is the same as the aperture of the through hole (2513) and the aperture of the limiting ring (243).

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