Double eccentric adjustable vibration mechanism, steel wheel roller and road roller

Abstract

The utility model discloses a double eccentric adjustable vibration mechanism, steel wheel drum and road roller, double eccentric adjustable vibration mechanism includes pivot, fixed eccentric disc, adjustable eccentric disc and adjusting disc, pivot coaxial rotation is sleeved with protection box, and protection box is equipped with vibration cavity, fixed eccentric disc is sleeved with pivot and is fixedly connected, adjustable eccentric disc is sleeved with pivot, and adjustable eccentric disc is provided with a plurality of positioning protrusions, adjusting disc is coaxial rotation and is sleeved with pivot, and is located between fixed eccentric disc and adjustable eccentric disc, and adjusting disc is connected through a plurality of reset springs, adjusting disc is provided with a plurality of positioning slot holes, and positioning slot hole is set up with positioning protrusion correspondingly. It can solve the problem of the insufficient compaction degree, excessive compaction, limited excitation frequency adjustment range of the vibration mechanism for the steel wheel type vibration road roller, and is not conducive to meeting the higher requirements of compaction degree precision and efficiency in complex construction environment.

Description

Technical Field

[0001] This utility model relates to the field of road roller technology, specifically to a double eccentric adjustable vibration mechanism, a steel wheel drum, and a road roller. Background Technology

[0002] A road roller is a compaction device used in road construction, airport runway construction, dam construction, and foundation treatment. It uses the machine's own gravity, vibration, or other forces to compress and rearrange the particles of the material being compacted, thereby increasing the density and strength of the material and achieving the required flatness and stability for the project.

[0003] Road rollers are divided into two categories: steel wheel type and tire type. Among them, steel wheel type road rollers are mechanical equipment that uses their own gravity and vibration to compact various building and road construction materials. They are suitable for non-cohesive soils, crushed stone and crushed stone mixtures, as well as various asphalt concrete materials.

[0004] Regarding vibration systems, most existing steel-wheel vibratory rollers use fixed eccentric blocks that rotate periodically driven by electric motors or hydraulic motors, which can easily lead to insufficient compaction or over-compaction. Furthermore, traditional excitation systems have a simple structure, poor adjustability, and the control of the excitation frequency usually depends on changes in the motor speed, resulting in a limited adjustment range and slow response speed. This makes them unsuitable for meeting the higher requirements for compaction accuracy and efficiency in complex construction environments.

[0005] Therefore, this application is hereby submitted. Summary of the Invention

[0006] The purpose of this invention is to provide a double-eccentric adjustable vibration mechanism to solve the problems of insufficient compaction, over-compaction, limited adjustment range of excitation frequency, and inability to meet the higher requirements for compaction accuracy and efficiency in complex construction environments.

[0007] This invention is achieved through the following technical solution: A double-eccentric adjustable vibration mechanism includes: a rotating shaft, on which a protective box is coaxially mounted; a vibration cavity is provided inside the protective box; a fixed eccentric disk, disposed within the vibration cavity, and mounted and fixedly connected to the rotating shaft; an adjustable eccentric disk, disposed within the vibration cavity, rotatably mounted to the rotating shaft, the adjustable eccentric disk having multiple positioning protrusions on its side facing the fixed eccentric disk, all of which are concentrically arranged in a circular array around the rotating shaft; and an adjustment disk. The adjustment disc is located within the vibration cavity. The adjustment disc is coaxially rotatably mounted on the rotating shaft and positioned between the fixed eccentric disc and the adjustable eccentric disc. The side of the adjustment disc facing the fixed eccentric disc is connected by multiple return springs. The side of the adjustment disc facing the adjustable eccentric disc is recessed with multiple positioning slots. All the positioning slots are arranged in a circular array, concentrically and evenly distributed around the rotating shaft, and are corresponding to the positioning protrusions. When the return springs are in their natural state, the adjustment disc is attached to the adjustable eccentric disc, and the positioning protrusions are inserted into the positioning slots.

[0008] In another preferred embodiment, a control disk is provided between the fixed eccentric disk and the adjusting disk, the control disk is fixedly mounted on the rotating shaft, and the control disk is fixedly connected to the fixed eccentric disk; one end of the return spring is connected to the adjusting disk, and the other end is connected to the adjusting disk; an electromagnetic coil is provided inside the control disk; the adjusting disk is an armature disk, and the adjusting disk can cooperate with the electromagnetic coil.

[0009] In another preferred embodiment, the protective box and the adjustable eccentric disk are both rotatably connected to the rotating shaft via bearings; the fixed eccentric disk and the adjusting disk are both fixedly connected via several connecting keys.

[0010] In another preferred embodiment, the protective box is provided with a detachably connected protective cover, which is rotatably connected to one end of the rotating shaft via a bearing and closes the end of the rotating shaft, while the other end of the rotating shaft is located outside the protective box.

[0011] A steel wheel roller includes: a roller, the roller being hollow to form a mounting cavity, a traveling motor being disposed within the mounting cavity, the traveling motor being drivenly connected to the roller and fixedly connected to the external environment; a plurality of any one of the above-mentioned double eccentric adjustable vibration mechanisms, all of the double eccentric adjustable vibration mechanisms being coaxially disposed within the mounting cavity, a protective box being fixedly connected to the inner wall of the roller, all of the rotating shafts being coaxially connected via couplings, any one of the rotating shafts being drivenly connected to a vibration motor, the vibration motor being fixedly connected to the external environment.

[0012] In another preferred embodiment, the walking motor and the vibration motor are located at opposite ends of the drum, and a mounting plate is fixedly connected to the outer side of the walking motor and the outer side of the vibration motor, respectively, for fixed connection with the road roller.

[0013] In another preferred embodiment, a flange is provided on the side of the mounting cavity near the walking motor. The flange is coaxially and fixedly connected to the roller, and the flange is connected to the walking motor via a reducer.

[0014] A road roller includes: a mobile vehicle body; any of the above-mentioned rollers, wherein the traveling motor and the vibrating motor are both fixedly connected to the mobile vehicle body.

[0015] In another preferred embodiment, the front of the mobile vehicle is provided with a pitch mechanism, the pitch mechanism is provided with a horizontal steering mechanism, the horizontal steering mechanism is provided with a protective frame, the roller is provided inside the protective frame, and the walking motor and the vibration motor are both fixedly connected to the protective frame.

[0016] In another preferred embodiment, the mobile vehicle body is provided with a control system, which is electrically connected to the electromagnetic coil, the walking motor and the vibration motor respectively.

[0017] Because this utility model adopts the above-mentioned technical solution, it has the following positive effects compared with the prior art: This utility model discloses a double-eccentric adjustable vibration mechanism. By setting two eccentric disks—a fixed eccentric disk and an adjustable eccentric disk—they form a fitable eccentric system. Adjusting the phase angle difference between the two disks adjusts the eccentric performance of the system, thereby changing the excitation force of the entire eccentric system. Specifically, when the two eccentric disks rotate synchronously and are in phase, the combined excitation force reaches its maximum, and the amplitude is at its maximum. When the phase difference between the two eccentric disks is 180°, the excitation forces cancel each other out, and the amplitude approaches its minimum. An adjusting disk and a return spring are used. A positioning slot is recessed in the adjusting disk, and a positioning protrusion is convex in the adjustable eccentric disk. The return spring presses the adjusting disk onto the adjustable eccentric disk. The insertion of the positioning protrusion and the positioning slot connects the adjusting disk and the adjustable eccentric disk into a single unit for synchronous rotation. Since the adjusting disk and the fixed eccentric disk are connected by the return spring... Therefore, the three components are connected as a whole and rotate synchronously. When it is necessary to adjust the phase angle difference between the fixed eccentric disk and the adjustable eccentric disk, force is applied to the adjusting disk to overcome the elasticity of the return spring and move it away from the adjustable eccentric disk. This allows the positioning protrusion to separate from the positioning slot. At this time, simply rotating the shaft will drive the fixed eccentric disk and the adjusting disk to rotate synchronously to adjust the phase angle difference. After adjustment, the external force applied to the adjusting disk is removed, allowing the adjusting disk to reconnect with the adjustable eccentric disk under the action of the return spring through the insertion and engagement of the positioning protrusion and the positioning slot. Through the mutual cooperation of the above features, this double eccentric adjustable vibration mechanism can effectively solve the problems of insufficient compaction, over-compaction, limited excitation frequency adjustment range, and unfavorable conditions for meeting the higher requirements for compaction accuracy and efficiency in complex construction environments. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 A half-sectional schematic diagram of the double-eccentric adjustable vibration mechanism provided by this utility model; Figure 2 A half-sectional schematic diagram of the steel wheel roller provided by this utility model; Figure 3 This is a schematic diagram of the road roller provided by this utility model.

[0019] The attached diagram shows the markings and corresponding component names: 10-Shaft; 11-Protective box; 111-Protective cover; 12-Bearing; 13-Connecting key; 20-Fixed eccentric disc; 30-Adjustable eccentric disc; 31-Positioning protrusion; 40-Adjusting disc; 41-Reset spring; 42-Positioning slot; 43-Control disc; 431-Electromagnetic coil; 50-Drum; 51-Travel motor; 52-Coupling; 53-Vibration motor; 54-Mounting plate; 55-Flange; 56-Reducer; 60-Moving body; 61-Pitch mechanism; 62-Horizontal steering mechanism; 63-Protective frame. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane". Example

[0023] Please refer to Figure 1As shown, this embodiment provides a double-eccentric adjustable vibration mechanism, including: a rotating shaft 10, on which a protective box 11 is coaxially rotatably mounted, and a vibration cavity is provided inside the protective box 11; a second component includes a fixed eccentric disk 20, which is disposed in the vibration cavity and is mounted and fixedly connected to the rotating shaft 10; a third component includes an adjustable eccentric disk 30, which is disposed in the vibration cavity and rotatably mounted to the rotating shaft 10, wherein the adjustable eccentric disk 30 has a plurality of positioning protrusions 31 protruding on the side facing the fixed eccentric disk 20, and all the positioning protrusions 31 are arranged in a circular array concentrically and evenly around the rotating shaft 10; a fourth component includes... The device includes an adjustment disc 40, which is disposed within the vibration cavity. The adjustment disc 40 is coaxially rotatably mounted on the rotating shaft 10 and located between the fixed eccentric disc 20 and the adjustable eccentric disc 30. The side of the adjustment disc 40 facing the fixed eccentric disc 20 is connected by multiple return springs 41. The side of the adjustment disc 40 facing the adjustable eccentric disc 30 is recessed with multiple positioning slots 42. All the positioning slots 42 are arranged in a circular array concentrically around the rotating shaft 10 and are correspondingly set with the positioning protrusions 31. When the return springs 41 are in their natural state, the adjustment disc 40 is attached to the adjustable eccentric disc 30, and the positioning protrusions 31 are inserted into the positioning slots 42.

[0024] The dual-eccentric adjustable vibration mechanism disclosed in this embodiment uses two eccentric disks, a fixed eccentric disk 20 and an adjustable eccentric disk 30, to form a fitable eccentric system. By adjusting the phase angle difference between the two disks, the eccentric performance of the eccentric system can be adjusted, thereby changing the excitation force of the entire eccentric system. Specifically, when the two eccentric disks rotate synchronously and have the same phase, the combined excitation force reaches its maximum, and the amplitude is at its maximum. When the phase difference between the two eccentric disks is 180°, the excitation forces cancel each other out, and the amplitude approaches its minimum. An adjusting disk 40 and a return spring 41 are provided. A positioning slot 42 is recessed in the adjusting disk 40, and a positioning protrusion 31 is protruded in the adjustable eccentric disk 30. The return spring 41 presses the adjusting disk 40 onto the adjustable eccentric disk 30. Through the insertion of the positioning protrusion 31 and the positioning slot 42, the adjusting disk 40 and the adjustable eccentric disk 30 are connected as a whole and rotate synchronously. Since the adjusting disk 40 and the fixed eccentric disk 20 are connected by the return spring 41... Therefore, the three components are connected as a whole and rotate synchronously. When it is necessary to adjust the phase angle difference between the fixed eccentric disk 20 and the adjustable eccentric disk 30, force is applied to the adjusting disk 40 to overcome the elasticity of the return spring 41 and move it away from the adjustable eccentric disk 30. This allows the positioning protrusion 31 to separate from the positioning slot 42. At this time, simply rotating the shaft 10 will drive the fixed eccentric disk 20 and the adjusting disk 40 to rotate synchronously to adjust the phase angle difference. After adjustment, the external force applied to the adjusting disk 40 is removed, allowing the adjusting disk 40 to be connected to the adjustable eccentric disk 30 again under the action of the return spring 41 through the insertion and engagement of the positioning protrusion 31 and the positioning slot 42. Through the mutual cooperation of the above features, this double eccentric adjustable vibration mechanism can effectively solve the problems of insufficient compaction, over-compaction, limited excitation frequency adjustment range, and unfavorable conditions for meeting the higher requirements for compaction accuracy and efficiency in complex construction environments.

[0025] It should be noted that, theoretically, the more positioning protrusions 31 and positioning slots 42 there are, the higher the accuracy of phase adjustment will be. In actual settings, the settings can be adjusted according to the usage and requirements.

[0026] To facilitate the application of external force to the adjusting disk 40, a control disk 43 is provided between the fixed eccentric disk 20 and the adjusting disk 40. The control disk 43 is fixedly mounted on the rotating shaft 10 and fixedly connected to the fixed eccentric disk 20. One end of the return spring 41 is connected to the adjusting disk 40, and the other end is connected to the adjusting disk 40. An electromagnetic coil 431 is provided inside the control disk 43. The adjusting disk 40 is an armature disk, and the adjusting disk 40 can cooperate with the electromagnetic coil 431.

[0027] With the above settings, when it is necessary to adjust the phase angle difference, the electromagnetic coil 431 is energized to form a magnet, which then electromagnetically attracts the adjustment disk 40, causing it to overcome the elasticity of the reset spring 41 and move away from the adjustable eccentric disk 30.

[0028] It should be noted that the electromagnetic coil and armature disk mentioned above can be any of the existing technologies, as long as they can achieve the above effects.

[0029] To further optimize the connection, the protective box 11 and the adjustable eccentric disk 30 are both rotatably connected to the rotating shaft 10 via bearings 12; the fixed eccentric disk 20 and the adjusting disk 40 are both fixedly connected via several connecting keys 13.

[0030] To facilitate maintenance and disassembly of the components inside the protective box 11, the protective box 11 is provided with a detachable protective cover 111. The protective cover 111 is rotatably connected to one end of the rotating shaft 10 via a bearing 12 and closes the end of the rotating shaft 10. The other end of the rotating shaft 10 is located outside the protective box 11.

[0031] Please refer to Figure 2 As shown, this embodiment also provides a steel wheel roller, including: a roller 50, which is hollow to form an installation cavity, a travel motor 51 is provided in the installation cavity, the travel motor 51 is drivenly connected to the roller 50 and fixedly connected to the external environment; and a second component including several of the above-mentioned double eccentric adjustable vibration mechanisms, all of which are coaxially arranged in the installation cavity, the protective box 11 is fixedly connected to the inner wall of the roller 50, all of the rotating shafts 10 are coaxially connected through a coupling 52, and any one of the rotating shafts 10 is drivenly connected to a vibration motor 53, which is fixedly connected to the external environment.

[0032] With the above settings, the rolling and vibration of the roller 50 are made independent of each other. The roller 50 is controlled to roll by the walking motor 51, and the entire double eccentric adjustable vibration mechanism is controlled to rotate eccentrically to vibrate by the vibration motor 53. Thus, when the vibration frequency needs to be adjusted, the traveling speed of the roller 50 will not be affected.

[0033] To further optimize the connection method, the walking motor 51 and the vibration motor 53 are respectively located at both ends of the drum 50. A mounting plate 54 is fixedly connected to the outer side of the walking motor 51 and the outer side of the vibration motor 53, and the mounting plate 54 is used to fix the connection with the road roller.

[0034] To provide a specific explanation of the transmission connection structure between the travel motor 51 and the roller 50, a flange 55 is provided on the side of the mounting cavity near the travel motor 51. The flange 55 is coaxially and fixedly connected to the roller 50, and the flange 55 is connected to the travel motor 51 via a reducer 56.

[0035] Please refer to Figure 3 As shown, this embodiment also provides a road roller, including: a mobile vehicle body 60; and a second roller, including any of the above-mentioned rollers, wherein the traveling motor 51 and the vibrating motor 53 are both fixedly connected to the mobile vehicle body 60.

[0036] In order to adjust the height and horizontal direction of the roller 50, the front of the mobile vehicle body 60 is provided with a pitch mechanism 61, the pitch mechanism 61 is provided with a horizontal steering mechanism 62, the horizontal steering mechanism 62 is provided with a protective frame 63, the roller 50 is located inside the protective frame 63, and the walking motor 51 and the vibration motor 53 are both fixedly connected to the protective frame 63.

[0037] It should be noted that both the pitch mechanism 61 and the horizontal steering mechanism 62 mentioned above adopt existing technologies in the vehicle field, such as existing wheel steering mechanisms and pitch structures controlled by hydraulic telescopic rods.

[0038] In order to realize the electronic control of the key structure of this application, the mobile vehicle body 60 is provided with a control system, which is electrically connected to the electromagnetic coil 431, the walking motor 51 and the vibration motor 53 respectively.

[0039] With the above settings, the control system can control whether the electromagnetic coil 431 is energized, control the direction and speed of the walking motor 51, and control the direction and speed of the vibration motor 53.

[0040] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-eccentric adjustable vibration mechanism, characterized in that, include: A rotating shaft (10) is coaxially fitted with a protective box (11), and the protective box (11) is provided with a vibration cavity. A fixed eccentric disk (20) is provided in the vibration cavity, and the fixed eccentric disk (20) is fitted and fixedly connected to the rotating shaft (10); An adjustable eccentric disk (30) is provided in the vibration cavity. The adjustable eccentric disk (30) is rotatably fitted with the rotating shaft (10). The adjustable eccentric disk (30) has a plurality of positioning protrusions (31) on the side facing the fixed eccentric disk (20). All the positioning protrusions (31) are arranged in a circular array concentrically around the rotating shaft (10). An adjusting disc (40) is disposed in the vibration cavity. The adjusting disc (40) is coaxially rotatably mounted on the rotating shaft (10) and located between the fixed eccentric disc (20) and the adjustable eccentric disc (30). The side of the adjusting disc (40) facing the fixed eccentric disc (20) is connected by multiple return springs (41). The side of the adjusting disc (40) facing the adjustable eccentric disc (30) is recessed with multiple positioning slots (42). All the positioning slots (42) are arranged in a circular array concentrically around the rotating shaft (10) and are corresponding to the positioning protrusions (31). When the reset spring (41) is in its natural state, the adjustment disc (40) is attached to the adjustable eccentric disc (30), and the positioning protrusion (31) is inserted into the positioning slot (42).

2. The double-eccentric adjustable vibration mechanism according to claim 1, characterized in that, A control disk (43) is provided between the fixed eccentric disk (20) and the adjusting disk (40). The control disk (43) is fixedly mounted on the rotating shaft (10), and the control disk (43) is fixedly connected to the fixed eccentric disk (20). One end of the return spring (41) is connected to the adjusting plate (40), and the other end is connected to the adjusting plate (40); The control panel (43) is equipped with an electromagnetic coil (431). The adjusting plate (40) is an armature plate, and the adjusting plate (40) can cooperate with the electromagnetic coil (431).

3. The double-eccentric adjustable vibration mechanism according to claim 2, characterized in that, The protective box (11) and the adjustable eccentric disk (30) are both rotatably connected to the rotating shaft (10) via bearings (12); The fixed eccentric disk (20) and the adjusting disk (40) are both fixedly connected by several connecting keys (13).

4. The double-eccentric adjustable vibration mechanism according to claim 3, characterized in that, The protective box (11) is provided with a detachable protective cover (111). The protective cover (111) is rotatably connected to one end of the rotating shaft (10) via a bearing (12) and closes the end of the rotating shaft (10). The other end of the rotating shaft (10) is located outside the protective box (11).

5. A steel wheel roller, characterized in that, include: A roller (50) is hollow to form an installation cavity. A walking motor (51) is provided in the installation cavity. The walking motor (51) is connected to the roller (50) in a transmission and is fixedly connected to the external environment. The double eccentric adjustable vibration mechanism according to any one of claims 2-4, wherein all the double eccentric adjustable vibration mechanisms are coaxially arranged in the mounting cavity, the protective box (11) is fixedly connected to the inner wall of the roller (50), all the rotating shafts (10) are coaxially connected through the coupling (52), and any one of the rotating shafts (10) is driven by a vibration motor (53), and the vibration motor (53) is fixedly connected to the external environment.

6. The steel wheel roller according to claim 5, characterized in that, The walking motor (51) and the vibration motor (53) are respectively located at both ends of the drum (50). A mounting plate (54) is fixedly connected to the outer side of the walking motor (51) and the outer side of the vibration motor (53). The mounting plate (54) is used to fix the roller to the roller.

7. The steel wheel roller according to claim 6, characterized in that, A flange (55) is provided on the side of the mounting cavity near the walking motor (51). The flange (55) is coaxially fixedly connected to the roller (50). The flange (55) is connected to the walking motor (51) via a reducer (56).

8. A road roller, characterized in that, include: Mobile vehicle body (60); The roller according to any one of claims 5-7, wherein the walking motor (51) and the vibration motor (53) are both fixedly connected to the moving vehicle body (60).

9. The road roller according to claim 8, characterized in that, The front of the mobile vehicle body (60) is provided with a pitch mechanism (61), the pitch mechanism (61) is provided with a horizontal steering mechanism (62), the horizontal steering mechanism (62) is provided with a protective frame (63), the roller (50) is located inside the protective frame (63), and the walking motor (51) and the vibration motor (53) are both fixedly connected to the protective frame (63).

10. The road roller according to claim 9, characterized in that, The mobile vehicle body (60) is equipped with a control system, which is electrically connected to the electromagnetic coil (431), the walking motor (51) and the vibration motor (53) respectively.

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