Dual-purpose road milling and planing machine
By integrating the roughening milling component and the marking milling component into the same equipment, and using the support shaft and connecting seat to achieve quick disassembly and switching, the high cost and low versatility problems caused by the independent equipment in the prior art are solved, and the equipment achieves high versatility and cost reduction.
Patent Information
- Application Number
- CN202522164752.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-14
AI Technical Summary
In the existing technology, surface roughening milling machines and road marking milling machines are two separate pieces of equipment, resulting in high costs for separate procurement and transportation. This leads to reduced versatility and increased maintenance costs, especially for roads with low usage frequency.
Design a dual-purpose road milling tool that integrates roughening milling components and marking milling components into the same device. Quick assembly and disassembly switching can be achieved through a support shaft and connecting seat, making it suitable for different operational requirements and avoiding separate procurement.
The equipment achieves high versatility and cost reduction. Through the design of the support shaft and connecting seat, it enables quick disassembly and switching between the roughening milling component and the marking milling component, thereby reducing equipment procurement and maintenance costs.
Smart Images
Figure CN224678495U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction, specifically to a dual-purpose road milling tool. Background Technology
[0002] Road milling refers to the operation of removing damaged old road surfaces or old road markings. Specifically, after a long period of use, old road surfaces become worn and smooth, which directly weakens the interaction between vehicles and the ground, resulting in problems such as longer braking distances and reduced handling stability. Similarly, after a long period of use, the markings on old road surfaces reach their service life, their reflectivity deteriorates, and they become difficult for drivers to see. For the aforementioned road milling operations, a roughening milling machine is typically used for roughening, and a marking milling machine is used to remove old markings to facilitate the spraying of new markings. The two operations require different equipment. Taking the roughening milling machine as an example, it includes a vehicle body, a roughening milling component installed at the front of the vehicle body, and a cutter head with a specific structure in the roughening milling component. The two types of equipment increase the costs of separate procurement and transportation, especially for some roads with low usage frequency, resulting in reduced versatility and increased maintenance costs. Utility Model Content
[0003] The purpose of this utility model is to provide a dual-purpose road milling tool with a simple and compact structure, which enables the switching between roughening milling components and marking milling components to suit different operational requirements, avoids the need to purchase corresponding products separately, effectively reduces costs, and has higher versatility.
[0004] To achieve the above objectives, this dual-purpose road milling tool includes: The side-shifting frame is driven to move and is mounted on a fixed frame, which is mounted on the vehicle body via a movable arm. A support assembly having a first support plate and a pair of spaced-apart second support plates; the first support plate is mounted on a side-shifting frame and located between the second support plates. The marking milling assembly and the roughening milling assembly are as follows: the marking milling assembly has a marking milling drum that is driven to rotate and a marking cutter head mounted on the marking milling drum; the roughening milling assembly has a roughening milling drum that is driven to rotate and a roughening cutter head mounted on the roughening milling drum. Among them, the distance between the two sides of the marking milling drum and the roughening milling drum is the same, and both are coaxially equipped with support shafts. A first connecting seat and a second connecting seat are rotatably provided on a pair of support shafts. The first connecting seat moves axially on the support shaft and can be connected to the second support plate. The axis of the second connecting seat is limited on the support shaft. The distance between the two second support plates is greater than the end sides of the marking milling drum and the roughening milling drum, but less than the distance between the first connecting seat and the second connecting seat. When the first connecting seat and the second support plate are connected by bolts, the second connecting seat can press against the second support plate.
[0005] In some examples of this utility model, each second support plate has a slot with an opening structure at its lower end; A pair of support shafts are located in the slots respectively.
[0006] In some examples of this utility model, the second support plate is provided with a sliding shoe arranged along the forward direction; One end of the slipper is rotatably mounted on the second support plate, and the other end is locked and fixed to the second support plate by bolts.
[0007] In some examples of this utility model, the locking and fixing end of the slipper is provided with a strip groove centered on the rotation axis, and the bolt passes through the strip groove and is threadedly connected to the second support plate; Alternatively, the locking end of the slipper is provided with multiple through holes evenly arranged around the rotation axis, and the bolt passes through the through holes to be threadedly connected to the second support plate.
[0008] In some examples of this utility model, a plurality of through holes or threaded holes are provided on the second support plate near the second connecting seat; The second connecting seat is provided with a threaded positioning rod that can be inserted into the through hole, or it is provided with a threaded rod that matches the threaded hole.
[0009] In some examples of this utility model, the marking milling assembly also has multiple circumferentially evenly arranged support rods; multiple marking cutter heads are disposed on the support rods.
[0010] In some examples of this invention, the support assembly is further provided with a visual sensor for acquiring road surface images; the visual sensor wirelessly transmits image signals to a display in the driver's cab of the vehicle.
[0011] In some examples of this utility model, a drive assembly is provided between the side-shifting frame and the fixed frame; The drive assembly includes a third drive element and a helical rod; The output end of the third drive unit is fixedly connected to the screw rod, which is threadedly connected to the side-shifting frame via an ear seat, and the side-shifting frame moves on the fixed frame via a guide rail.
[0012] Compared with existing technologies, this dual-purpose road milling machine integrates the marking milling component and the roughening milling component for easy assembly and disassembly. By setting equivalent support shafts on the end sides of the roughening milling drum and the marking milling drum, a pair of second support plates are located between the first connecting seat, the second connecting seat and the two end sides of the marking milling drum, and the first connecting seat moves axially and is positioned, enabling the switching between the roughening milling component and the marking milling component to suit different operational requirements. This avoids the need to purchase corresponding products separately, effectively reduces costs, and increases versatility. The first connecting seat is connected to the second support plate by bolts due to axial movement. The lower end of the second support plate has an open slot, and the support shaft can be directly embedded in the slot to complete the corresponding positioning. This enables quick assembly and disassembly of the roughening milling drum and the marking milling drum on the support assembly. In addition, the milling depth can be adjusted by adjusting the slip shoe. Attached Figure Description
[0013] Figure 1 This is an overall schematic diagram of the present invention (installation of the marking milling assembly); Figure 2 This is a schematic diagram of the support component (installation of the roughening and milling component) in this utility model. Figure 3 This is a schematic diagram of the installation of the marking milling component in this utility model; Figure 4 This is a front view of the milling assembly for installing marking lines in this utility model; Figure 5 This is a schematic diagram of the installation of the roughening and milling assembly in this utility model; Figure 6 This is a front view of the roughening and milling assembly installed in this utility model; In the diagram: 10. Fixture; 11. Drive assembly; 20. Side-shifting frame; 30. Supporting component; 31. First support plate; 32. Second support plate; 33. Slot; 40. Marking milling assembly; 41. First drive unit; 42. Marking milling drum; 43. Marking cutter head; 44. Support rod; 45. Support plate; 51. Slipper; 52. Strip groove; 60. Roughening and milling assembly; 61. Second drive unit; 62. Roughening and milling drum; 63. Roughening cutter head; 71. First connecting seat; 72. Second connecting seat; 73. Support shaft. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0015] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.
[0016] like Figures 1 to 6 As shown, this dual-purpose road milling tool includes: The side-shifting frame 20 is driven to move and is mounted on the fixed frame 10, which is mounted on the vehicle body via a movable arm. The support assembly 30 has a first support plate 31 and a pair of spaced-apart second support plates 32; the first support plate 31 is mounted on the side shift frame 20 and located between the second support plates 32. The marking milling assembly 40 and the roughening milling assembly 60 are respectively. The marking milling assembly 40 has a marking milling drum 42 that is driven to rotate and a marking cutter head 43 mounted on the marking milling drum 42. The roughening milling assembly 60 has a roughening milling drum 62 that is driven to rotate and a roughening cutter head 63 mounted on the roughening milling drum 62. Among them, the marking milling drum 42 and the roughening milling drum 62 are both coaxially provided with support shafts 73. A first connecting seat 71 and a second connecting seat 72 are rotatably provided on a pair of support shafts 73. The first connecting seat 71 moves axially on the support shaft 73 and can be connected to the second support plate 32 by bolts. The axis of the second connecting seat 72 is limited on the support shaft 73. The distance between the pair of second support plates 32 is greater than the end sides of the marking milling drum 42 and the roughening milling drum 62, and less than the distance between the first connecting seat 71 and the second connecting seat 72. When the first connecting seat 71 and the second support plate 32 are connected by bolts, the second connecting seat 72 can press against the second support plate 32. Specifically, the vehicle body can move the dual-purpose road milling machine to perform milling operations, and the movable arm can be a large and small arm structure, which can move the dual-purpose road milling machine to various positions. The side-shifting frame 20 can be moved and installed on the fixed frame 10 via guide rails, which can ensure that the position of the side-shifting frame 20 can be moved after one milling operation is completed to match the next milling operation; The support assembly 30 has a first support plate 31 that can partially wrap around the upper part of a pair of second support plates 32, and can ensure the installation space for the marking milling assembly 40 and the roughening milling assembly 60 below; the first support plate 31 is fixedly connected to the side shift frame 20. The first connecting seat 71 and the second connecting seat 72 can have built-in bearings to complete the rotational connection with the corresponding support shaft 73 while ensuring the support is subjected to force; the second connecting seat 72 is axially fixed relative to the support shaft 73, and the first connecting seat 71 is first axially moved by a sleeve and then fixed by bolts; One second support plate 32 is located between the first connecting seat 71 and the end side of the marking milling drum 42 or the roughening milling drum 62, and the other second support plate 32 is located between the second connecting seat 72 and the end side of the marking milling drum 42 or the roughening milling drum 62. The marking milling assembly 40 and the roughening milling assembly 60 are assembled and disassembled by axial movement and locking of the first connecting seat 71. In addition, support plates 45 can be provided on the end sides of the marking milling drum 42 and the roughening milling drum 62, that is, the distance between a pair of second support plates 32 is greater than the distance between a pair of support plates 45. In the marking milling assembly 40 and the roughening milling assembly 60, a support shaft 73 on the marking milling drum 42 can be connected to the first drive member 41, and a support shaft 73 on the roughening milling drum 62 can be connected to the second drive member 61. The first drive member 41 and the second drive member 61 can be hydraulic motors. The hydraulic motors can be installed on the second connecting seat 72. During disassembly and assembly, the power source can be directly connected to the hydraulic motor. When using this dual-purpose road milling tool, the marking milling component 40 or the roughening milling component 60 can be disassembled and assembled according to the usage environment and requirements. That is, when roughening the road surface, the roughening milling drum 62 is placed between a pair of second support plates 32, and the second connecting seat 72 contacts one of the second support plates 32. The first connecting seat 71 moves axially inward and is fixedly connected to the second support plate 32 by bolts. At this time, the first connecting seat 71 and the second connecting seat 72 act on the end sides of the pair of second support plates 32 respectively, completing the installation of the roughening milling component 60. When replacing or removing old road markings, the first connecting seat 71 moves axially outward, releasing the clamping and fixing of the first connecting seat 71 and the second connecting seat 72 to the second support plate 32. Then the marking milling drum 42 is placed between a pair of second support plates 32, and the first connecting seat 71 moves axially inward, completing the installation of the marking milling component 40. After the marking milling component 40 or the roughening milling component 60 is installed, the movable arm drives the fixed frame 10 to move above the ground, so that the marking cutter head 43 or the roughening cutter head 63 contacts the ground. The vehicle body drives the dual-purpose road milling machine to move and complete the corresponding marking or roughening operation. Therefore, the marking milling component 40 and the roughening milling component 60 in this dual-purpose road milling machine can be integrated to facilitate overall assembly and disassembly. By setting equivalent support shafts 73 on the end sides of the roughening milling drum 62 and the marking milling drum 42, and by axially moving and positioning the first connecting seat 71, the use of the roughening milling component 60 and the marking milling component 40 can be switched to suit different operation requirements, avoiding the need to purchase corresponding products separately and effectively reducing costs. In addition, the first connecting seat 71 moves axially and is connected to the second support plate 32 by bolts, which enables the quick assembly and disassembly of the roughening milling drum 62 and the marking milling drum 42 on the support component 30.
[0017] In some examples of this utility model, such as Figure 2 As shown, each second support plate 32 has a slot 33 with an opening structure at its lower end; A pair of support shafts 73 are respectively located in the slots 33; Specifically, the slot 33 can be an elongated oval hole structure. During installation, the support shaft 73 can be directly embedded in the slot 33 to complete the positioning of the roughening milling drum 62 and the marking milling drum 42. The overall structure is compact. In particular, the movable arm can drive the fixed frame 10 to move so that a pair of second support plates 32 can be connected or disconnected from the support shaft 73, realizing the quick assembly and disassembly of the roughening milling drum 62 or the marking milling drum 42. In some examples of this utility model, such as Figure 1 As shown, the second support plate 32 is provided with a sliding shoe 51 arranged along the forward direction; One end of the slipper 51 is rotatably mounted on the second support plate 32, and the other end is locked and fixed on the second support plate 32 by bolts; Furthermore, the locking and fixing end of the slipper 51 is provided with a strip groove 52 centered on the rotation axis, and the bolt passes through the strip groove 52 and is threadedly connected to the second support plate 32; Alternatively, the locking and fixing end of the slipper 51 is provided with multiple through holes evenly arranged around the rotation axis, and the bolt passes through the through holes and is threaded to the second support plate 32; Specifically, the slipper 51, which contacts the ground, can be made of wear-resistant material and is used to adjust the contact height between the marking milling component 40 and the roughening milling component 60 and the ground. Both ends of the sliding shoe 51 are connected to the second support plate 32 by fasteners. The fasteners allow the sliding shoe 51 to rotate around one end while the other end is fixed. When marking or roughening is done, the sliding shoe 51 contacts the ground. The bolt passes through the slot 52 or through hole and is threaded to the second support plate 32 to adjust the position of the sliding shoe 51. This adjustment allows the marking milling assembly 40 and the roughening milling assembly 60 to extend beyond the sliding shoe 51 by a certain amount to determine the milling depth. For example, when the sliding shoe 51 is adjusted to flip upward, the lower end of the marking milling assembly 40 and the roughening milling assembly 60 extends more beyond the sliding shoe 51, and the milling depth is relatively deeper. Conversely, the extension is reduced, and the milling depth is relatively shallower. In this example, the position of the slide shoe 51 is adjusted by using a strip groove 52 or multiple through holes. The strip groove 52 allows the slide shoe 51 to be adjusted in different positions, but there is a problem of inaccurate positioning and locking. The through holes allow the slide shoe 51 to be adjusted in a "gear" position. The two adjustment methods are suitable for different milling environments.
[0018] In some examples of this utility model, the second support plate 32 near the second connecting seat 72 is provided with multiple through holes or threaded holes; The second connecting seat 72 is provided with a threaded positioning rod that can be inserted into the through hole, or it is provided with a threaded rod that matches the threaded hole. Specifically, relying on the bolt installation of the first connecting seat 71 has the problem of the bolt bearing a large shear force due to uneven weight distribution. In order to maintain installation stability, the second connecting seat 72 is installed on the second support plate 32 through a positioning rod or a threaded rod. At this time, during installation, after a pair of support shafts 73 are embedded in the corresponding slots 33, the second connecting seat 72 is rotated to align the corresponding holes, and then the positioning rod or threaded rod is installed.
[0019] In some examples of this utility model, such as Figure 3 , Figure 4 As shown, the marking milling assembly 40 also has a plurality of circumferentially evenly arranged support rods 44; Multiple marking blades 43 are mounted on the support rod 44; Specifically, according to the requirements of the road marking operation, a certain number of road marking cutters 43 are installed at intervals on the support rods 44. The multiple support rods 44 are arranged circumferentially. When the road marking milling drum 42 rotates, it can drive the multiple support rods 44 and the road marking cutters 43 on each support rod 44 to move, so as to realize the road marking operation and avoid the problem that the treatment effect of a single road marking cutter 43 is not obvious.
[0020] In some examples of this utility model, the support component 30 is also provided with a visual sensor for acquiring road surface images; The vision sensor wirelessly transmits image signals to a display in the driver's cab. Specifically, the vision sensor is equipped with a protective cover to prevent damage from flying debris during milling operations; Operators can directly obtain road surface images through the monitor in the vehicle cab. In particular, when performing road marking milling operations, operators can directly obtain the old marking trajectory on the road surface to avoid deviation problems. When the road marking milling component is replaced with the roughening milling component, the signal line and power line of the vision sensor can be integrated into a bus, which can be directly connected to the wiring on the support component 30 to avoid rewiring.
[0021] In some examples of this utility model, a drive assembly 11 is provided between the side-shifting frame 20 and the fixed frame 10; The drive assembly 11 has a third drive element and a screw rod; The output end of the third drive unit is fixedly connected to the screw rod, the screw rod is threadedly connected to the side shift frame 20 through the lug seat, and the side shift frame 20 moves on the fixed frame 10 through the guide rail; Specifically, the drive component 11 is used to move the side shift frame 20 to adjust the position of the marking milling component 40 or the roughening milling component 60. This adjustment helps to perform marking or roughening treatment on different parts of the road surface. The drive assembly 11 is a third drive component that is directly a hydraulic cylinder, an electric cylinder, or a hydraulic motor structure; when the third drive component is started, the screw rotates, which drives the side shift frame 20 to move on the fixed frame 10 through the lug.
[0022] When replacing the marking milling component 40 with the roughening milling component 60, the operator controls the movable arm to raise the entire structure. The operator then removes the sliding shoes 51 on both sides of the support component 30. Next, the movable arm brings the marking milling drum 42 into contact with the ground. The first connecting seat 71 and the second connecting seat 72 are then disconnected from the second support plate 32. The first connecting seat 71 is moved away from the second support plate 32 along the support shaft 73. Then, the movable arm is raised to allow the marking milling component 40 to slide out of the slot 33, thus completing the disassembly of the marking milling component 40. Place the texturing and milling assembly 60 on the ground. The movable arm controls the slots 33 on the second support plate 32 to insert into the support shafts 73 on both sides of the texturing and milling drum 62. After it is in place, adjust the positions of the first connecting seat 71 and the second connecting seat 72 so that they are connected to the second support plate 32. Then, lift the whole assembly by the movable arm and install the sliding shoes 51 on both sides of the support assembly 30 to complete the installation of the texturing and milling assembly 60.
[0023] The exemplary embodiments of the dual-purpose road milling machine proposed by this utility model have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of this utility model, and various combinations can be made to the various technical features and structures proposed by this utility model without exceeding the protection scope of this utility model, which is determined by the appended claims.
Claims
1. A dual-purpose road milling tool, characterized in that, include: The side-shifting frame (20) is driven to move and is mounted on the fixed frame (10), which is mounted on the vehicle body via a movable arm; The support assembly (30) has a first support plate (31) and a pair of spaced-apart second support plates (32); the first support plate (31) is mounted on the side-shifting frame (20) and located between the second support plates (32); The marking milling assembly (40) and the roughening milling assembly (60) are as follows: the marking milling assembly (40) has a marking milling drum (42) that is driven to rotate and a marking cutter head (43) mounted on the marking milling drum (42); the roughening milling assembly (60) has a roughening milling drum (62) that is driven to rotate and a roughening cutter head (63) mounted on the roughening milling drum (62). Among them, the two sides of the marking milling drum (42) and the roughening milling drum (62) are equidistant and are coaxially provided with support shafts (73). A first connecting seat (71) and a second connecting seat (72) are rotatably provided on a pair of support shafts (73). The first connecting seat (71) moves axially on the support shaft (73) and can be connected to the second support plate (32). The axis of the second connecting seat (72) is limited on the support shaft (73). The distance between the pair of second support plates (32) is greater than the end sides of the marking milling drum (42) and the roughening milling drum (62) and less than the distance between the first connecting seat (71) and the second connecting seat (72). When the first connecting seat (71) and the second support plate (32) are connected by bolts, the second connecting seat (72) can press against the second support plate (32).
2. The dual-purpose road milling tool according to claim 1, characterized in that, Each second support plate (32) has a slot (33) with an open structure at its lower end; A pair of support shafts (73) are located in the slot (33).
3. The dual-purpose road milling tool according to claim 1, characterized in that, The second support plate (32) is provided with a sliding shoe (51) arranged along the forward direction; One end of the slipper (51) is rotatably mounted on the second support plate (32), and the other end is locked and fixed on the second support plate (32) by bolts.
4. The dual-purpose road milling tool according to claim 3, characterized in that, The sliding shoe (51) has a locking and fixing end with a strip groove (52) centered on the rotation axis. The bolt passes through the strip groove (52) and is threaded to the second support plate (32). Alternatively, the locking end of the slipper (51) is provided with multiple through holes evenly arranged around the rotation axis, and the bolt passes through the through holes and is threaded to the second support plate (32).
5. The dual-purpose road milling tool according to claim 1, characterized in that, The second support plate (32) near the second connecting seat (72) is provided with multiple through holes or threaded holes; The second connecting seat (72) is provided with a threaded positioning rod that can be inserted into the through hole, or is provided with a threaded rod that matches the threaded hole.
6. The dual-purpose road milling tool according to any one of claims 1 to 4, characterized in that, The marking milling assembly (40) also has multiple circumferentially evenly arranged support rods (44); multiple marking cutter heads (43) are arranged on the support rods (44).
7. The dual-purpose road milling tool according to any one of claims 1 to 4, characterized in that, The support component (30) is also equipped with a vision sensor for acquiring road surface images; the vision sensor transmits image signals wirelessly to the display in the driver's cab.
8. The dual-purpose road milling tool according to any one of claims 1 to 4, characterized in that, A drive assembly (11) is provided between the side-shifting frame (20) and the fixed frame (10). The drive assembly (11) has a third drive element and a screw rod; The output end of the third drive unit is fixedly connected to the screw rod, which is threadedly connected to the side shift frame (20) through the ear seat, and the side shift frame (20) moves on the fixed frame (10) through the guide rail.