Road roller

Abstract

The invention relates to a road roller which comprises a vibration excitation box body, the vibration excitation box body is provided with a first vibration excitation shaft and a second vibration excitation shaft, the first vibration excitation shaft and the second vibration excitation shaft are correspondingly arranged in parallel, and the first vibration excitation shaft and the second vibration excitation shaft are opposite in rotation direction and the same in rotation speed. According to the technical scheme provided by the invention, the two excitation shafts are arranged in the excitation box body, and the rotation directions of the two excitation shafts are opposite, so that the acting force in the horizontal direction is counteracted, the pulling of the machine in the horizontal direction caused by rotation deviating from the excitation shafts is eliminated, the working efficiency is improved, and the damage to the machine is reduced.

Description

Technical Field

[0001] The present invention relates to the field of road rollers, and in particular to a vibration excitation device and a road roller. Background Art

[0002] Small road rollers are small-scale construction equipment used in fields such as highway maintenance, municipal construction, and landscaping. They can fill operational needs that are difficult to cover with larger equipment. Traditional small road rollers have a single excitation shaft within their vibration mechanism. The rotation of this single excitation shaft causes horizontal tension on the machine, reducing efficiency and causing fatigue damage to the structure. Furthermore, this single excitation shaft suffers from low excitation force. Summary of the Invention

[0003] The object of the present invention is to provide a vibration excitation device which can effectively solve the above-mentioned problems and improve the stability and compaction efficiency of the roller.

[0004] To achieve the above objectives, the present invention is implemented using the following scheme.

[0005] A vibration device is characterized in that it includes an excitation box, the excitation box is provided with a first excitation axis and a second excitation axis, the first excitation axis and the second excitation axis are arranged in parallel with each other, and the first excitation axis and the second excitation axis rotate in opposite directions and have the same rotation speed.

[0006] The specific solution is that the first excitation axis and the second excitation axis have the same height.

[0007] The first exciting shaft and the second exciting shaft are connected through a gear transmission assembly.

[0008] The gear transmission assembly includes a first gear and a second gear respectively provided at the ends of the first exciting shaft and the second exciting shaft. The first gear and the second gear are meshed and transmitted with a transmission ratio of 1.

[0009] A first transmission pulley is provided at the other end of the first exciting shaft, and the first transmission pulley is transmission-connected to the clutch device.

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

[0011] A second auxiliary box body is provided at one end of the box body, the first transmission belt pulley is installed in the second auxiliary box body, and a vacant part for assembling the first transmission belt pulley is provided on the second auxiliary box body.

[0012] A road roller, characterized in that it comprises a frame on which the vibration device, clutch device, engine, control device and steel wheel according to any one of claims 1 to 7 are arranged.

[0013] The vibration device is located on the lower side of the clutch device. The compaction force of the roller is 20KN.

[0014] The above-mentioned technical solution provided by the present invention, by arranging two excitation shafts in the excitation box, the rotation directions of the two excitation shafts are opposite, thereby offsetting the horizontal force, eliminating the horizontal pulling of the machine by the rotation of the biased excitation shaft, improving work efficiency and reducing damage to the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of the excitation device.

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

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

[0018] Figure 4 It is a structural diagram of the clutch device.

[0019] Figure 5 A cross-sectional view of the clutch device.

[0020] Figure 6 Schematic diagram of the structure of the power output component.

[0021] Explanation of the figure numbers: 01-clutch device, 02-excitation 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-movable wheel body, 13-adjusting connector, 14-U-shaped adjusting member, 15-assembly tube, 16-mounting plate, 17-pulling member, 18-flexible shaft cable, 21-first excitation shaft, 22-second excitation shaft, 23-first gear, 24-second gear, 25-first transmission pulley, 26-box body, 27-first sub-box, 28-second sub-box, 29-first transmission belt, 31-mounting seat, 32-sleeve, 33-assembly set, 34-driving spring, 41-second transmission belt, 42-fourth transmission pulley. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0023] As used herein, the terms "parallel," "perpendicular," and the like are not limited to their strict geometric definitions, but include allowances for reasonable and inconsistent machining or human errors.

[0024] like Figure 1 、 2 As shown, a vibration device 02 includes an excitation box, and the excitation box is provided with a first excitation shaft 21 and a second excitation shaft 22. The first excitation shaft 21 and the second excitation shaft 22 are arranged in parallel with each other, and the rotation directions of the first excitation shaft 21 and the second excitation shaft 22 are opposite and the rotation speeds are the same. The specific solution is: the heights of the first excitation shaft 21 and the second excitation shaft 22 are the same. The first excitation shaft 21 and the second excitation shaft 22 are connected by a gear transmission assembly. The gear transmission assembly includes a first gear 23 and a second gear 24 respectively provided at the ends of the first excitation shaft 21 and the second excitation shaft 22. The first gear 23 and the second gear 24 are meshed and transmitted with a transmission ratio of 1. The first excitation shaft 21 and the second excitation shaft 22 have the same structure. The present invention improves the compaction force and compaction efficiency of the roller by arranging the first excitation shaft 21 and the second excitation shaft 22 in the excitation box. In addition, when the roller is performing normal compaction work, the two sets of exciting shafts in the vibration box rotate synchronously in opposite directions, and the horizontal forces offset each other, eliminating the horizontal pulling of the roller by the eccentric exciting shaft rotation, improving work efficiency and reducing damage to the roller.

[0025] like Figure 3 As shown, the present invention also provides a road roller, including a frame, on which the above-mentioned excitation device 02, clutch device 01, engine 05, control device 03, and steel wheel 06 are arranged. The excitation device 02 is located on the lower side of 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 transmission-connected to the clutch device 01. The excitation box includes a box body 26, and the middle shafts of the first excitation shaft 21 and the second excitation shaft 22 are located in the box body 26. A first sub-box 27 is provided at one end of the box body 26, and the first gear 23 and the second gear 24 are located in the first sub-box 27. A second sub-box 28 is provided at one end of the box body 26, and the first transmission pulley 25 is installed in the second sub-box 28. The second sub-box 28 is provided with a vacant portion for assembling the first transmission belt 29. The compacting force of the road roller is 20KN. The road roller provided by the present invention has a compact structure, stable performance and high efficiency.

[0026] Due to the change of the excitation device 02, the original clutch device 01 cannot be adapted for installation, so the present invention also provides a clutch device 01. Figure 4 、 5As shown in Figure 6, it includes a transmission shaft, a second transmission pulley assembly 12 is provided at one end of the transmission shaft, and a third transmission pulley 13 is provided at the other end. The transmission shaft and the first excitation shaft 21 are arranged parallel to each other. The transmission shaft is rotatably mounted in a sleeve 32 provided on a mounting seat 31. The second transmission pulley assembly 12 includes a fixed wheel body 121 fixedly mounted on the transmission shaft and a movable wheel body 122 adjustably mounted along the length direction of the transmission shaft. The movable wheel body 122 is slidably assembled on the transmission shaft through a keyway and a cam. The fixed wheel body 121 is located on the outside of the movable wheel body 122, and the two rotate synchronously. A rotatably assembled mounting sleeve 33 is provided on the movable wheel body 122, and two ear shafts arranged opposite to each other are provided on the mounting sleeve 33. The ear shafts are arranged horizontally and perpendicular to the transmission shaft. A drive spring 34 is also provided on the movable wheel body 122, and the drive spring 34 drives the movable wheel body 122 to move toward the side close to the fixed wheel body 121. It also includes a U-shaped adjusting member 14, and the assembly sleeve 33 is located in the U-shaped adjusting member 14. The U-shaped adjusting member 14 is provided with two long strip assembly holes, and the two connecting ear shafts are respectively assembled in the two assembly holes. A fixed rotating shaft is provided at the upper mouth of the U-shaped adjusting member 14, and the rotating shaft is rotatably assembled in the assembly tube 15. The assembly tube 15 is fixedly assembled. The bottom of the U-shaped adjusting member 14 is provided with a vertically arranged adjusting connector 13, and the lower part of the adjusting connector 13 is hingedly connected to the horizontally arranged pulling member 17. The operating device 03 includes an adjusting handle, and the adjusting handle is connected to the pulling member 17 through a flexible shaft pull line 04. The fixed wheel body 121 and the movable wheel body 122 enclose a wheel groove for assembling the first transmission belt 29. A first annular portion is provided on the side of the fixed wheel body 121 close to the movable wheel body 122, and the outer annular surface of the first annular portion constitutes the groove bottom surface of the wheel groove. A second annular portion is provided on the movable wheel body 122 near the fixed wheel body 121, and the second annular portion is loosely mounted on the first annular portion. The fixed wheel body 121 is also provided with a first surface, and the movable wheel body 122 is provided with a second surface. The first and second surfaces respectively form the two groove walls of the wheel groove. The first drive pulley 25 and the second drive pulley assembly 12 are connected via a first transmission belt 29. By operating the adjustment handle to move the pull member 17, the U-shaped adjustment member pulls the movable wheel body 122 away from the fixed wheel body 121, thereby disconnecting the transmission between the first transmission belt 29 and the second drive pulley assembly 12. Reversing the adjustment handle causes the drive spring 34 to force the movable wheel body 122 toward the fixed wheel body 121, reconnecting the first transmission belt 29 and the second drive pulley assembly 12. This process allows the vibration device to be started and stopped. The mounting base 31 is fixedly mounted on the frame. The assembly tube 15 is fixedly mounted on the mounting plate 16 provided on the shaft sleeve 32. The output shaft of the engine 05 is provided with a fourth transmission pulley 42, 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 the present invention can increase the compaction force of a traditional roller from 10 kN to 20 kN. 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, improving efficiency and reducing fatigue damage to the structure caused by horizontal pulling, thereby extending the roller's service life and compaction efficiency.

[0028] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A vibration excitation device, characterized in that: The vibration box comprises an excitation box, which is provided with a first excitation axis and a second excitation axis. The first excitation axis and the second excitation axis are arranged in parallel with each other, and the first excitation axis and the second excitation axis rotate in opposite directions and at the same speed.

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

3. The vibration excitation device according to claim 1 or 2, characterized in that: The first exciting shaft and the second exciting shaft are connected through a gear transmission assembly.

4. The vibration excitation device according to claim 3, characterized in that: The gear transmission assembly includes a first gear and a second gear respectively provided at the ends of the first exciting shaft and the second exciting shaft. The first gear and the second gear are meshed and transmitted with a transmission ratio of 1.

5. The vibration excitation device according to claim 4, characterized in that: A first transmission pulley is provided at the other end of the first exciting shaft, and the first transmission pulley is transmission-connected to the clutch device.

6. The vibration excitation device according to claim 5, characterized in that: The excitation box includes a box body, the middle shafts of the first excitation shaft and the second excitation shaft are located in the box body, a first auxiliary box is provided at one end of the box body, and the first gear and the second gear are located in the first auxiliary box.

7. The vibration excitation device according to claim 6, characterized in that: A second auxiliary box body is provided at one end of the box body, the first transmission belt pulley is installed in the second auxiliary box body, and a vacant part for assembling the first transmission belt pulley is provided on the second auxiliary box body.

8. A road roller, characterized in that: The invention comprises a frame on which the vibration excitation device, the clutch device, the engine, the control device and the steel wheel according to any one of claims 1 to 7 are arranged.

9. The road roller according to claim 8, characterized in that: The vibration excitation device is located on the lower side of the clutch device.

10. The road roller according to claim 8, characterized in that: The compacting force of the roller is 20KN.

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