A vibration excitation device and a road roller

Abstract

This utility model relates to a vibration excitation device and a road roller, including a vibration box housing. The vibration box housing is equipped with a first vibration shaft and a second vibration shaft, which are arranged parallel to each other. The first and second vibration shafts rotate in opposite directions but at the same speed. The technical solution provided by this utility model, by arranging two vibration shafts within the vibration box housing with opposite rotation directions, cancels out the horizontal force, eliminates the horizontal pulling on the machine caused by the rotation of the vibration shafts, improves work efficiency, and reduces damage to the machine.

Description

Technical Field

[0001] This utility model relates to the field of road rollers, specifically to a vibration excitation device and a road roller. Background Technology

[0002] Small road rollers are small engineering equipment used in fields such as highway maintenance, municipal construction, and landscaping, and can fill operational needs that are difficult for large equipment to cover. Traditional small road rollers have only a single excitation shaft in their vibration device. The rotation of this single shaft causes horizontal tension on the machine, reducing work efficiency and causing fatigue damage to the machine structure. Furthermore, a single excitation shaft also suffers from low excitation force. Utility Model Content

[0003] The purpose of this invention is to provide a vibration excitation device that can effectively solve the above-mentioned problems and improve the stability and compaction efficiency of road rollers.

[0004] To achieve the above objectives, this utility model is implemented using the following scheme.

[0005] A vibration excitation device, characterized in that: it includes a vibration box, the vibration box is provided with a first vibration shaft and a second vibration shaft, the first vibration shaft and the second vibration shaft are arranged in parallel and corresponding to each other, the first vibration shaft and the second vibration shaft rotate in opposite directions and rotate at the same speed.

[0006] The specific solution is that the heights of the first excitation shaft and the second excitation shaft are the same.

[0007] The first and second excitation shafts are connected by a gear transmission assembly.

[0008] The gear transmission assembly includes a first gear and a second gear respectively disposed at the ends of a first excitation shaft and a second excitation shaft. The first gear and the second gear mesh with each other and the transmission ratio is 1.

[0009] The other end of the first excitation shaft is provided with a first transmission pulley, which is connected to the clutch device.

[0010] The excitation housing includes a housing body, the middle shafts of the first excitation shaft and the second excitation shaft are located inside the housing body, and a first auxiliary housing is provided at one end of the housing body, with the first gear and the second gear located inside the first auxiliary housing.

[0011] A second auxiliary housing is provided at one end of the main housing. The first transmission pulley is installed in the second auxiliary housing. The second auxiliary housing has a gap for assembling the first transmission pulley.

[0012] A road roller, characterized in that it includes a frame, on which a vibration excitation device, a clutch device, an engine, a control device, and a steel wheel are mounted.

[0013] The vibration excitation device is located below the clutch. The compaction force of the road roller is 20 kN.

[0014] The above-mentioned technical solution provided by this utility model, by setting two excitation shafts in the excitation box, with the two excitation shafts rotating in opposite directions, cancels the horizontal force, eliminates the pulling on the machine in the horizontal direction caused by the rotation of the bias excitation shaft, improves work efficiency and reduces damage to the machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the excitation device.

[0016] Figure 2 for Figure 1 A sectional view.

[0017] Figure 3 This is a schematic diagram of the road roller assembly.

[0018] Figure 4 This is a schematic diagram of the clutch mechanism.

[0019] Figure 5 This is a cross-sectional view of the clutch mechanism.

[0020] Figure 6 This is a schematic diagram of the power output component.

[0021] Drawing number explanations: 01-Clutch device, 02-Vibration device, 03-Control device, 04-Flexible shaft cable, 05-Engine, 06-Steel wheel, 13-Third transmission pulley, 12-Second transmission pulley assembly, 121-Fixed wheel body, 122-Moving wheel body, 13-Adjusting connector, 14-U-shaped adjusting component, 15-Assembly tube, 16-Mounting plate, 17-Pull component, 18-Flexible shaft cable, 21-First vibration shaft, 22-Second vibration shaft, 23-First gear, 24-Second gear, 25-First transmission pulley, 26-Box body, 27-First auxiliary box, 28-Second auxiliary box, 29-First transmission belt, 31-Mounting seat, 32-Shaft sleeve, 33-Assembly kit, 34-Drive spring, 41-Second transmission belt, 42-Fourth transmission pulley. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] As used in this article, terms such as “parallel” and “perpendicular” are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors.

[0024] like Figure 1 , 2 As shown, a vibration excitation device 02 includes a vibration box housing. The vibration box housing is equipped with a first vibration shaft 21 and a second vibration shaft 22, which are arranged parallel to each other. The first vibration shaft 21 and the second vibration shaft 22 rotate in opposite directions but at the same speed. Specifically, the first vibration shaft 21 and the second vibration shaft 22 have the same height. The first vibration shaft 21 and the second vibration shaft 22 are connected by a gear transmission assembly. The gear transmission assembly includes a first gear 23 and a second gear 24 respectively disposed at the ends of the first vibration shaft 21 and the second vibration shaft 22. The first gear 23 and the second gear 24 mesh and transmit power with a transmission ratio of 1. The first vibration shaft 21 and the second vibration shaft 22 have identical structures. This utility model improves the compaction force and compaction efficiency of a road roller by arranging the first vibration shaft 21 and the second vibration shaft 22 within the vibration box housing. In addition, during normal compaction operation, the two sets of excitation shafts inside the vibratory box rotate synchronously in opposite directions, and the horizontal forces cancel each other out, eliminating the pulling effect of the biased excitation shaft rotation on the road roller in the horizontal direction, improving work efficiency and reducing damage to the road roller.

[0025] like Figure 3 As shown, this utility model also provides a road roller, including a frame on which the aforementioned excitation device 02, clutch device 01, engine 05, control device 03, and steel wheel 06 are mounted. The excitation device 02 is located below the clutch device 01. A first transmission pulley 25 is provided at the other end of the first excitation shaft 21, and the first transmission pulley 25 is connected to the clutch device 01. The excitation housing includes a housing body 26, with the middle shafts of the first excitation shaft 21 and the second excitation shaft 22 located inside the housing body 26. A first auxiliary housing 27 is provided at one end of the housing body 26, and a first gear 23 and a second gear 24 are located inside the first auxiliary housing 27. A second auxiliary housing 28 is provided at one end of the housing body 26, and the first transmission pulley 25 is installed inside the second auxiliary housing 28. The second auxiliary housing 28 has a gap for mounting the first transmission belt 29. The compaction force of the road roller is 20 kN. The road roller provided by this utility model has a compact structure, stable performance, and high efficiency.

[0026] Because of the change in the excitation device 02, the original clutch device 01 is no longer compatible for installation. Therefore, this utility model also provides a clutch device 01. Figure 4 , 5As shown in Figure 6, the assembly includes a drive shaft with a second drive pulley assembly 12 at one end and a third drive pulley 13 at the other end. The drive shaft and the first excitation shaft 21 are arranged parallel to each other. The drive shaft is rotatably mounted in a bushing 32 on a mounting base 31. The second drive pulley assembly 12 includes a fixed pulley body 121 fixedly mounted on the drive shaft and a movable pulley body 122 adjustable along the length of the drive shaft. The movable pulley body 122 is slidably mounted on the drive shaft via a keyway and a key. The fixed pulley body 121 is located outside the movable pulley body 122, and both rotate synchronously. The movable pulley body 122 is provided with a rotatably mounted fitting 33, and the fitting 33 is provided with two trunnions arranged opposite each other, the trunnions being horizontal and perpendicular to the drive shaft. The movable pulley body 122 is also provided with a drive spring 34, which drives the movable pulley body 122 to move closer to the fixed pulley body 121. It also includes a U-shaped adjusting component 14, with the mounting assembly 33 located inside the U-shaped adjusting component 14. The U-shaped adjusting component 14 has two elongated mounting holes, and two connecting trunnions are respectively mounted in the two mounting holes. A fixedly mounted rotating shaft is provided at the upper opening of the U-shaped adjusting component 14, and the rotating shaft is rotatably mounted inside the mounting tube 15, which is fixedly mounted. A vertically arranged adjusting connector 13 is provided at the bottom of the U-shaped adjusting component 14, and the lower part of the adjusting connector 13 is hinged to a horizontally arranged pulling component 17. The control device 03 includes an adjusting handle, which is connected to the pulling component 17 via a flexible shaft cable 04. The fixed wheel body 121 and the movable wheel body 122 enclose a groove for mounting the first transmission belt 29. A first annular portion is provided on the side of the fixed wheel body 121 near the movable wheel body 122, and the outer annular surface of the first annular portion forms the bottom surface of the groove. A second annular portion is provided on the side of the movable wheel body 122 near the fixed wheel body 121, and the second annular portion is loosely fitted onto the first annular portion. A first platform is also provided on the fixed wheel body 121, and a second platform is provided on the movable wheel body 122. The first and second platforms respectively form the two walls of the wheel groove. The first transmission pulley 25 and the second transmission pulley assembly 12 are connected by a first transmission belt 29. By operating the adjustment handle, the pulling member 17 is moved, causing the U-shaped adjusting member to pull the movable wheel body 122 away from the fixed wheel body 121, thereby disengaging the transmission between the first transmission belt 29 and the second transmission pulley assembly 12. Conversely, by operating the adjustment handle, the drive spring 34 drives the movable wheel body 122 towards the fixed wheel body 121, reconnecting the transmission between the first transmission belt 29 and the second transmission pulley assembly 12. Through this process, the start and stop of the vibration device are adjusted. A specific mounting base 31 is fixedly mounted on the frame. The assembly tube 15 is fixedly mounted on the mounting plate 16 provided on the bushing 32. A fourth transmission pulley 42 is provided on the output shaft of the engine 05, and the third transmission pulley 13 and the fourth transmission pulley 42 are connected by a second transmission belt 41.

[0027] In summary, the technical solution provided by this utility model can increase the compaction force of a road roller from 10KN to 20KN compared to traditional road rollers. The two excitation shafts are connected by a gear assembly with a transmission ratio of 1, ensuring that the two excitation shafts run synchronously in opposite directions. This eliminates the horizontal force exerted by the excitation shafts on the machine, improves efficiency, reduces fatigue damage to the structure caused by horizontal tension, and increases the service life and compaction efficiency of the road roller.

[0028] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A vibration exciting device characterized by comprising: The device includes a vibration chamber, which is equipped with a first vibration shaft and a second vibration shaft. The first and second vibration shafts are arranged in parallel and opposite directions, and rotate in opposite directions but at the same speed. The first and second vibration shafts are connected by a gear transmission assembly, which includes a first gear and a second gear respectively provided at the ends of the first and second vibration shafts. The first and second gears mesh and transmit power with a transmission ratio of 1.

2. The excitation device according to claim 1, characterized in that: The first and second excitation shafts are at the same height.

3. The excitation device according to claim 1, characterized in that: The other end of the first excitation shaft is provided with a first transmission pulley, which is connected to the clutch device.

4. The excitation device according to claim 3, characterized in that: The excitation housing includes a housing body, the middle shafts of the first excitation shaft and the second excitation shaft are located inside the housing body, and a first auxiliary housing is provided at one end of the housing body, with the first gear and the second gear located inside the first auxiliary housing.

5. The excitation device according to claim 4, characterized in that: A second auxiliary housing is provided at the other end of the main housing. The first drive pulley is installed in the second auxiliary housing, and the second auxiliary housing has a gap for assembling the first drive pulley.

6. A road roller characterized by comprising: It includes a frame on which the excitation device, clutch device, engine, control device, and steel wheel described in any one of claims 1 to 5 are mounted.

7. The roller as claimed in claim 6, characterized in that: The excitation device is located below the clutch.

8. The roller as set forth in claim 6, characterized by: The compaction force of the road roller is 20 kN.

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