Milling digging device for epoxy asphalt concrete pavement layer of steel box girder bridge floor

Abstract

The utility model discloses a steel box girder bridge floor epoxy asphalt concrete pavement layer milling digging device which comprises a support, an engine and a battery pack are arranged on the support, a milling mechanism is arranged at the front end of the support, the milling mechanism comprises a milling cylinder, a supporting frame, a driving gear, a driven gear and a plurality of chain wheels, the supporting frame is connected with the support through the connecting frame, the milling barrel is installed below the supporting frame, and a center shaft of the driving gear penetrates through the supporting frame to be connected with the engine and is meshed with the driven gear. According to the utility model, the bracket is arranged, the engine and the milling mechanism are supported through the bracket, and the traveling wheels and the guide wheels are arranged below the bracket, so that the device can be pushed by a worker to move, and scraping treatment of a small part of damaged road surfaces is realized through the work of the engine and the milling mechanism, thereby providing convenience for paving new asphalt concrete; the problems that the efficiency of manually scraping the damaged pavement is low and the cost of scraping a small part of the damaged pavement by a large-size milling machine is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of road milling, in particular to a milling and excavating device for an epoxy asphalt concrete pavement layer on a steel box girder bridge deck. Background Art

[0002] When constructing long-span bridges, steel box girders are typically used as units, with multiple girders supported on the bridge. To improve the smoothness of the steel box girder deck, epoxy asphalt concrete is also laid on top to ensure safe and smooth travel for vehicles. However, after these long-span bridges are put into use, their surfaces often become damaged. This means grooves form in the epoxy asphalt concrete pavement, causing high-speed vehicles to experience bumps when encountering these grooves, which reduces the driving experience and can even lead to traffic accidents.

[0003] Therefore, municipal departments regularly repair municipal roads such as long-span bridges. When repairing the pavement of a long-span bridge, it is necessary to scrape off the damaged old pavement layer and then lay a new surface layer. In order to complete the above repair operation, it is necessary to use road milling equipment to scrape off the damaged layer of the road surface.

[0004] Currently, there are many milling devices. For example, a Chinese patent with publication number CN102383366B discloses a road milling machine, which includes a frame, a conveyor belt, and a lifting oil. The conveyor belt has an input end and an output end that are relatively set. The conveyor belt is hinged to the frame via a first hinge point. One end of the lifting oil cylinder is hinged to the frame, and the other end is hinged to the conveyor belt via a second hinge point. The second hinge point is located above the first hinge point, and the first hinge point is located between the second hinge point and the input end of the conveyor belt. The milling machine provided by this patent is large in size and has high working efficiency. Therefore, it is mainly used in cases where a large area of ​​the road is damaged. When the milling machine provided by this patent is used when a small part of the road is damaged, it is a waste of equipment and increases the cost of road repair.

[0005] When a small section of the road surface is damaged, multiple workers typically use equipment like electric picks and saws to cut, pry, and chisel away the damaged surface before laying new asphalt concrete. While this method can reduce road repair costs, it's inefficient and doesn't allow for efficient repair of multiple damage areas along a long-span bridge. Utility Model Content

[0006] The purpose of the utility model is to provide a milling and excavating device for the epoxy asphalt concrete pavement layer of a steel box girder bridge deck, aiming to improve the problem that manual cutting of a small part of damaged road surface is inefficient and the cost of using a large-size milling machine to scrape a small part of damaged road surface is high.

[0007] The present utility model is realized as follows: A milling and removing device for epoxy asphalt concrete paving layer on steel box girder bridge deck, which comprises a bracket. An engine and a battery pack are arranged on the bracket. A milling mechanism is arranged at the front end of the bracket. The milling mechanism includes a milling drum, a support frame, a driving gear, a driven gear and a plurality of sprockets. The support frame is connected to the bracket through a connecting frame. The milling drum is installed below the support frame. The central shaft of the driving gear penetrates through the support frame and is connected to the engine, and meshes with the driven gear. The driven gear is sleeved on a rotating shaft, and the rotating shaft is connected to the end shaft of the milling drum through a sprocket.

[0008] Preferably, the support frame includes a top frame, a sleeve plate and an insertion plate. The top frame is arranged in a U-shaped structure with an opening downward, and a slot is arranged at the end. The lower end of the sleeve plate is sleeved on the end shaft of the milling drum. The insertion plate is fixedly arranged above the sleeve plate, and the insertion plate is inserted into the slot.

[0009] Preferably, an internally threaded tube is fixedly arranged on the plate body where two insertion plates are connected. A threaded rod penetrates through the top of the top frame. The lower end of the threaded rod is threadedly inserted into the internally threaded tube, and the top is connected to the output shaft of the second motor.

[0010] Preferably, the sprockets include a first sprocket, a second sprocket and a third sprocket. The first sprocket is sleeved on the end of the rotating shaft. The second sprocket is sleeved on the end of the end shaft. The third sprocket is adjustably arranged on the support frame. The first sprocket, the second sprocket and the third sprocket are connected by a chain.

[0011] Preferably, the third sprocket is sleeved on a support shaft. The support shaft penetrates through and is arranged at the end of the plug-in plate. A sleeve frame is sleeved on the other end of the plug-in plate. An adjusting screw rod is arranged on the side of the sleeve frame. The end of the adjusting screw rod threadedly penetrates through the threaded hole of the plug-in plate.

[0012] Preferably, a cleaning mechanism is arranged at the rear end of the bracket. The cleaning mechanism includes a baffle and an annular belt. An arc-shaped plate is arranged at the bottom of the baffle, and end columns are arranged at both ends of the baffle. One of the end columns is connected to the output shaft of the first motor. The annular belt is sleeved on the end columns, and a plurality of push plates are evenly distributed on the outer side. A plurality of connecting frames are arranged above the baffle, and the connecting frames are connected to the bracket.

[0013] Preferably, guide wheels are arranged at the front end of the bottom of the bracket, and walking wheels are arranged at the rear end. The walking wheels are sleeved on a driven rod. A driving rod is arranged above the driven rod. The driven rod and the driving rod are connected by a sprocket and a chain, and the driving rod is connected to the output shaft of the second motor.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The utility model is provided with a bracket, and the engine and the milling mechanism are supported by the bracket. In addition, walking wheels and guide wheels are provided under the bracket, and the staff can push the device to move. The engine and the milling mechanism work to achieve the scraping of a small part of the damaged road surface, which provides convenience for paving new asphalt concrete and solves the problems of low efficiency of manual scraping of damaged road surface and high cost of scraping a small part of the damaged road surface with a large-size milling machine.

[0016] 2. The utility model is provided with a cleaning mechanism, which can control the rotation of the ring belt under the action of the motor, and then control the synchronous movement of multiple push plates. Under the action of the push plates, waste materials can be cleaned out of the milling groove, providing convenience for repairing the road surface in the new asphalt concrete feeding milling groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 It is a structural diagram of the utility model bracket;

[0019] Figure 3 It is a structural diagram of the milling mechanism of the utility model;

[0020] Figure 4 It is a structural diagram of the support frame of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the third sprocket of the utility model;

[0022] Figure 6 It is a structural diagram of the cleaning mechanism of the utility model.

[0023] In the figure: 1. cleaning mechanism; 11. connecting frame; 12. first motor; 13. endless belt; 14. push plate; 15. arc plate; 16. end column; 17. baffle; 2. bracket; 21. battery pack; 22. walking wheel; 23. driving rod; 24. driven rod; 25. control box; 3. milling mechanism; 31. milling cylinder; 32. driving gear; 33. connecting frame; 34. first sprocket; 35. driven gear; 36. second sprocket; 4. engine; 5. supporting frame; 51. top frame; 52. slot; 53. plug-in plate; 54. sleeve plate; 55. internal threaded pipe; 56. threaded rod; 6. third sprocket; 61. supporting shaft; 62. plug-in plate; 63. sleeve frame; 64. adjusting screw; 65. threaded hole. DETAILED DESCRIPTION

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0026] Example 1

[0027] Because the cost of using existing milling machines to repair small parts of damaged road surfaces is high, and the efficiency of workers using electric picks, electric saws, etc. to repair small parts of damaged road surfaces is low, in order to solve this problem, this embodiment provides a new milling device, which can be pushed by workers to move on the road surface, thereby realizing milling of small parts of damaged road surfaces.

[0028] like Figure 1 As shown, specifically, the milling device includes a bracket 2, an engine 4 and a milling mechanism 3. The bracket 2 is configured as a frame structure, with guide wheels provided at the front end of the bottom of the bracket 2, and walking wheels 22 provided at the rear end. A push handle is provided obliquely at the rear end of the bracket 2, so that the staff can hold the push handle to control the movement of the bracket 2, providing support for the staff to adjust the position of the device according to needs, and providing convenience for milling multiple damaged road surfaces. The engine 4 is provided on the inner side of the bracket 2 and uses fuel oil as fuel to convert thermal energy into mechanical energy. The milling mechanism 3 is provided on the front side of the bracket 2 and is connected to the engine 4. Therefore, the milling mechanism 3 can be controlled to rotate under the action of the engine 4, and the damaged road surface can be scraped off by the milling mechanism 3.

[0029] like Figure 3As shown in the figure, in order to scrape off the damaged road surface, the milling mechanism 3 includes a milling drum 31, a support frame 5, a driving gear 32, a driven gear 35 and multiple sprockets. The support frame 5 is connected to the bracket 2 through a connecting frame 33. The milling drum 31 is adjustably installed below the support frame 5. Therefore, the position of the milling drum 31 can be adjusted according to requirements so as to scrape off the road surface with a corresponding depth as needed. The central axis of the driving gear 32 penetrates through the support frame 5 and is connected to the engine 4, and meshes with the driven gear 35. The driven gear 35 is sleeved on the rotating shaft, and the rotating shaft is connected to the end shaft of the milling drum 31 through a sprocket. Therefore, when the engine 4 is working, the driving gear 32 and the driven gear 35 can be controlled to rotate, and then the milling drum 31 can be driven to rotate, and the milling drum 31 is used to break the road surface to achieve the scraping of the damaged road surface. Of course, a gearbox (such as a supercharger) can also be provided before the driving gear 32 and the output shaft of the engine 4 according to requirements, and the torque of the engine 4 is converted into rotational speed through the gearbox. In addition, a generator can also be provided on the side of the engine 4 to convert the mechanical energy of the engine 4 into electrical energy to provide electrical energy for the operation of this device.

[0030] As Figure 3 shown in the figure, in order to be able to control the rotation of the milling drum 31 by the engine 4, the sprocket includes a first sprocket 34, a second sprocket 36 and a third sprocket 6. The first sprocket 34 is sleeved on the end of the rotating shaft, the second sprocket 36 is sleeved on the end of the end shaft, and the third sprocket 6 is adjustably arranged on the support frame 5. The first sprocket 34, the second sprocket 36 and the third sprocket 6 are connected by a chain. Therefore, the power of the engine 4 can be transmitted to the milling drum 31 through the sprocket and the chain, forcing the milling drum 31 to rotate to achieve the scraping of the road surface.

[0031] As Figure 4 shown in the figure, in order to adjust the position of the milling drum 31, the support frame 5 includes a top frame 51, a sleeve plate 54 and an insertion plate 53. The top frame 51 is set as a U-shaped structure with an opening downward, and a slot 52 is provided at the end. The lower end of the sleeve plate 54 is sleeved on the end shaft of the milling drum 31, and the insertion plate 53 is fixedly arranged above the sleeve plate 54. The insertion plate 53 is inserted into the slot 52. Therefore, the sleeve plate 54 can be stably and movably connected relative to the top frame 51, providing support for adjusting the height of the milling drum 31 according to requirements. An internally threaded tube 55 is fixedly arranged on the plate body where the two insertion plates 53 are connected together. A threaded rod 56 penetrates through the top of the top frame 51. The lower end of the threaded rod 56 is threadedly inserted into the internally threaded tube 55, and the top is connected to the output shaft of the second motor. Under the action of the second motor, the rotation of the threaded rod 56 can be controlled. Since the threaded rod 56 is threadedly inserted into the internally threaded tube 55, the lifting of the insertion plate 53 relative to the top frame 51 can be controlled, and then the height of the milling drum 31 can be adjusted.

[0032] As Figure 5As shown, in order to adjust the position of the milling barrel 31, the third sprocket 6 is sleeved on the support shaft 61, and the support shaft 61 is set through the end of the plug-in plate 62. A sleeve frame 63 is sleeved on the other end of the plug-in plate 62, so that the sleeve frame 63 is movably connected to the plug-in plate 62. In addition, the sleeve frame 63 is stably installed on the support frame 5. An adjustment screw 64 is set on the side of the sleeve frame 63. The end of the adjustment screw 64 is threaded and penetrates the threaded hole 65 of the plug-in plate 62. By rotating the adjustment screw 64, the plug-in plate 62 can be controlled to move relative to the sleeve frame 63, adjusting the position of the third sprocket 6, providing support for adjusting the height of the milling barrel 31 and realizing power transmission. Specifically, before adjusting the milling barrel 31, the adjustment screw 64 is rotated to adjust the position of the third sprocket 6, eliminating the stretched state of the sprocket, and providing support for adjusting the position of the sleeve plate 54 relative to the top frame 51.

[0033] like Figure 1 、 Figure 2 As shown, to enable the device to move and reduce the workload of the staff, a travel wheel 22 is mounted on a driven rod 24. A drive rod 23 is located above the driven rod 24. The driven rod 24 and the drive rod 23 are connected by a sprocket and chain, and the drive rod 23 is connected to the output shaft of the second motor. Therefore, under the operation of the second motor, the travel wheel 22 can be controlled to rotate, providing power for the movement of the bracket 2. In addition, the guide wheel can adjust the direction of the bracket 2's movement. To control the operation of the device, a control box 25 is installed on the bracket 2. Inside the control box 25 are located the control system and power supply system. The control system mainly includes components such as switches, contactors, circuit breakers, relays, and computers, which are used to control the switching, protection, operation, and monitoring of electrical equipment. The controller is responsible for controlling the operation, monitoring, and protection of various electrical equipment and can be divided into two types: low-voltage controllers and PLCs (programmable logic controllers). The power supply system consists of power switches, fuses, inverters, and voltage stabilizers, which are used to provide power to electrical equipment and ensure the stability and safety of the power supply. The control box 25 is a prior art and is briefly described here. The control box 25 is electrically connected to the battery pack 21, the engine 4 and the motor, thereby controlling the orderly operation of each device.

[0034] Example 2

[0035] like Figure 1 、 Figure 6As shown, based on Example 1, in order to remove waste, a cleaning mechanism 1 is provided at the rear end of the bracket 2. The cleaning mechanism 1 includes a baffle 17 and an annular belt 13. An arc-shaped plate 15 is provided at the bottom of the baffle 17, which can force the waste to move upward when the baffle 17 moves. End columns 16 are provided at both ends of the baffle 17. One end column 16 is connected to the output shaft of the first motor 12. The annular belt 13 is sleeved on the end column 16, and a plurality of push plates 14 are evenly distributed on the outer side. A plurality of connecting frames 11 are provided above the baffle 17. The connecting frame 11 is connected to the bracket 2. Under the action of the first motor 12, the end column 16 rotates, controlling the annular belt 13 to rotate, thereby forcing the plurality of push plates 14 to move, pushing the waste located on the side of the baffle 17 to move to the side, thereby achieving the cleaning of the fertilizer and providing convenience for re-paving asphalt concrete.

[0036] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A milling and excavating device for epoxy asphalt concrete pavement layer on steel box girder bridge deck, characterized in that: It includes a bracket (2), on which an engine (4) and a battery pack (21) are provided. At the front end of the bracket (2), a milling mechanism (3) is provided. The milling mechanism (3) includes a milling drum (31), a support frame (5), a driving gear (32), a driven gear (35) and multiple sprockets. The support frame (5) is connected to the bracket (2) through a connecting frame (33). The milling drum (31) is installed below the support frame (5). The central axis of the driving gear (32) penetrates the support frame (5) and is connected to the engine (4), and meshes with the driven gear (35). The driven gear (35) is sleeved on a rotating shaft, and the rotating shaft is connected to the end shaft of the milling drum (31) through a sprocket. At the rear end of the bracket (2), a cleaning mechanism (1) is provided. The cleaning mechanism (1) includes a baffle (17) and an endless belt (13). At the bottom of the baffle (17), an arc-shaped plate (15) is provided, and end posts (16) are provided at both ends of the baffle (17). One of the end posts (16) is connected to the output shaft of a first motor (12). The endless belt (13) is sleeved on the end posts (16), and multiple push plates (14) are evenly distributed on the outer side. Above the baffle (17), multiple connecting frames (11) are provided, and the connecting frames (11) are connected to the bracket (2).

2. The milling and excavating device for epoxy asphalt concrete pavement layer of steel box girder bridge deck according to claim 1 is characterized in that: The support frame (5) includes a top frame (51), a sleeve plate (54) and an insertion plate (53). The top frame (51) is provided with a U-shaped structure with an opening downward, and a slot (52) is provided at the end. The lower end of the sleeve plate (54) is sleeved on the end shaft of the milling drum (31). The insertion plate (53) is fixedly provided above the sleeve plate (54), and the insertion plate (53) is inserted into the slot (52).

3. The milling and excavating device for epoxy asphalt concrete pavement layer of steel box girder bridge deck according to claim 2, characterized in that: An internally threaded tube (55) is fixedly provided on the plate body where the two insertion plates (53) are joined together. A threaded rod (56) penetrates through the top of the top frame (51). The lower end of the threaded rod (56) is threadedly inserted into the internally threaded tube (55), and the top is connected to the output shaft of a second motor.

4. The milling and excavating device for epoxy asphalt concrete pavement layer of steel box girder bridge deck according to claim 1, characterized in that: The sprockets include a first sprocket (34), a second sprocket (36) and a third sprocket (6). The first sprocket (34) is sleeved on the end of the rotating shaft. The second sprocket (36) is sleeved on the end of the end shaft. The third sprocket (6) is adjustably provided on the support frame (5). The first sprocket (34), the second sprocket (36) and the third sprocket (6) are connected by a chain.

5. The milling and excavating device for epoxy asphalt concrete pavement layer of steel box girder bridge deck according to claim 4, characterized in that: The third sprocket (6) is sleeved on a support shaft (61). The support shaft (61) penetrates and is provided at the end of a plug-in plate (62). At the other end of the plug-in plate (62), a sleeve frame (63) is sleeved. At the side of the sleeve frame (63), an adjusting screw rod (64) is provided. The end of the adjusting screw rod (64) is threadedly penetrated through a threaded hole (65) of the plug-in plate (62).

6. The milling and excavating device for epoxy asphalt concrete pavement layer on steel box girder bridge deck according to claim 1, characterized in that: A guide wheel is provided at the front end of the bottom of the bracket (2), and a running wheel (22) is provided at the rear end. The running wheel (22) is sleeved on a driven rod (24). A driving rod (23) is provided above the driven rod (24). The driven rod (24) and the driving rod (23) are connected through a sprocket and a chain, and the driving rod (23) is connected to the output shaft of the second motor.

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