JPH06299511A - Vibration roller with biaxial vibrator - Google Patents

Abstract

PURPOSE:To efficiently emit heat generated on eccentric shafts and to easily lubricate bearings for the eccentric shafts, etc., by enclosing a vibrator support element and the eccentric shafts with a lubricant case located at the inside of a rolling roller. CONSTITUTION:A lubricant is put into a lubricant case 50. Under the condition that a vibrating mechanism 40 in the lubricant case 50 is not turned, the lubricant case 50 is integrally turned together with a rolling roller 1. The lubricant adhering to the inner wall of the lubricant case 50 is allowed to naturally fall from above a vibrator support element 30. After that, the lubricant is allowed to flow toward the inside of the vibrator support element 30 and toward eccentric shafts 6, 7, passing through openings on the surface of the vibrator support element 30. On the other hand, part of the lubricant is atomized by the vibration of vibrators and the lubricant is put into the vibrator support element 30. In this way, heat on the eccentric shafts is absorbed by the lubricant and this heat is emitted outward through the lubricant case 50 and the rolling roller 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biaxial vibration vibrating roller used for compacting a road surface or the like, and particularly efficiently dissipates heat generated by high speed rotation of a pair of eccentric shafts. ,
The present invention relates to a biaxial vibration vibrating roller that can facilitate lubrication of a bearing that axially supports an eccentric shaft and a vibration generator support element.

[0002]

2. Description of the Related Art A two-axis vibration vibrating roller is disclosed in
4-607, JP-A-63-315711,
JP-A-1-290801 or JP-A-4-146
As described in Japanese Patent No. 303, etc., in a rolling wheel, a rotary shaft having a rotation axis in a direction parallel to the rolling center line
The two eccentric shafts are rotated in opposite directions so that the ground contact portion of the rolling wheel is caused to vibrate in a specific direction or in a specific pattern. The present invention is intended for these two-axis vibration-vibration rollers, but as a representative example, the one described in Japanese Patent Application Laid-Open No. 4-146303 will be described. In the horizontal direction with respect to the rolling wheel rotation center line. An eccentric weight is attached to a rotary shaft that is symmetrically spaced apart from each other and is driven to rotate in the opposite direction at the same rotational speed, and this rotary shaft is rotated. In rotation, they are aligned vertically and symmetrically in the horizontal direction.The action forces of both eccentric weights act in the vertical direction and cancel each other in the horizontal direction, resulting in zero action force. The vibrating roller is configured to vibrate only in the vertical direction.

FIGS. 5 and 6 (a), (b) show a specific example of a biaxial vibration vibrating roller configured such that the vibration direction is only the vertical direction. FIG. 5 shows a plan sectional view of a rolling wheel of a biaxial vibration vibrating roller.
End plates 3 that are integral with the support members 2 and 2 in which shaft holes 2a and 2a are formed are provided separately in the inside.
A vibration mechanism 4 is housed between the end plates 3 and 3. The vibrating mechanism 4 includes a cylindrical exciter case 5, a pair of eccentric shafts 6 and 7 having eccentric weights 6a and 7a axially supported in the exciter case 5, and A gear train 8 for rotatably driving the eccentric shafts 6, 7 and a vibration generating motor 9 are mainly configured. Hollow shafts 5a, 5b are integrally formed on both sides of the exciter case 5,
The right shaft portion 5a is supported by the support 10A, and
The support 10A is attached to the frame 12 via a vibration isolation member 11A. Shaft holes 2a, 2a formed in supporting members 2, 2 integral with the end plates 3, 3 of the rolling wheel 1 support the shaft portions 5a, 5b of the exciter case 5 via rolling bearings 13, 13. is doing.

On the other hand, a traveling drive motor 14 with a speed reducer is attached to the support 10B on the left side, and its rotation drive portion 14a is fixed to a support member 2 integral with the end plate 3 of the rolling wheel 1. Therefore, the rolling wheel 1 is the shaft portion 5 of the exciter case 5.
It will roll around a and 5b. The support 10B on the left side is attached to the frame 12 via a vibration isolation member 11B.

The vibrating motor 9 is a support 10 on the right side.
A drive shaft 16 fixed to A and connected to the rotary shaft of the vibration-exciting motor 9 via a coupling 15 is an axial center of the shaft portion 5a on the right side of the exciter case 5. Is rotatably supported by the rolling bearing 17. Further, the pair of eccentric shafts 6 and 7 are in a horizontal positional relationship with the road surface, and the exciter case
Rolling bearings 18 are supported on inner walls 5c and 5d that are integral with the sleeve 5, respectively. Power transmission to the pair of eccentric shafts 6 and 7 is performed by the gear train 8. That is, when the gear 20 fixed to the drive shaft 16 rotates,
The driven gear 21 meshing with this rotates to rotate one of the eccentric shafts 6 and the drive gear 22 fixed to the eccentric shaft 6.
As a result, the gear 23 meshing with this rotates, and the other eccentric shaft 7 rotates in the opposite direction to the one eccentric shaft 6. At this time, the mutual relationship between the eccentric weights 6a and 7a of the eccentric shafts 6 and 7 and the eccentric position are eccentric with a phase difference of 180 degrees in the circumferential direction, and when they are rotated vertically, they have the same vertical phase. Is set.

Inside the vibrator case 5 is shown in FIG.
As shown in, the lubricating oil 70 is stored up to a predetermined level. As shown in FIG. 7, a drain port 5e, a level port 5f, and a filler port 5g are provided on the right side plate 5 '(FIG. 5) of the vibrating case 5 for plugs 5h, 5i, respectively. 5j is attached. Further, the support member 2 integrated with the end plate 3 shown in FIG.
Round holes 2b for f, 5g plug operation, confirmation, oil change, inspection, and service are provided.

[0007]

In the bearing of the vibrating shaft of the vibrating roller, a large amount of heat is generated due to the high speed rotation of the eccentric shaft. In a normal uniaxial exciter roller as disclosed in Japanese Utility Model Laid-Open No. 2-47233, the exciter case and the rolling wheels are integrated and the contact area is large, so that the bearing of the exciter shaft is used. Since there is sufficient heat transfer to the rolling wheels, which has the largest surface area and excellent heat transfer coefficient, there is no problem. However, in the above-mentioned two-shaft type vibrating roller, in order to generate a specific vibration direction or a specific vibration pattern, the exciter case inside the rolling wheel is integrated with the rolling wheel. However, in both cases, a rolling bearing having a very small contact area between the vibrating casing and the rolling wheels is pivotally supported. Therefore, as shown in FIG. 6 (b), heat generated by the high-speed rotation of the pair of vibrating shafts passes through the rolling bearing through the lubricating oil in the vibrating case and the vibrating case. Is transmitted to the rolling wheel 1 only. Therefore, the heat dissipation is poor, and the temperature of the lubricating oil 70 in the vibrating case 5 rises.

In addition to the above-mentioned first problem, there are also the following problems. The second problem is the exciter case 5
Since the drain port 5e, the level port 5f, and the filler port 5g of the lubricating oil incorporated in the inside of the end plate 3, that is, the support member 2, the oil exchange work is troublesome,
It is also difficult to see the level port. A third problem is that the round hole 2b provided in the support member 2 is covered with a seal to prevent dust from entering, but when the lubricating oil leaks from each port, it can be seen from the outside. No, it is difficult to check. The fourth problem is that the bearing member could be lubricated by the dripping of the lubricating oil by the rotation of the exciter case in the 1-axis exciter, but the exciter case was rotated in the 2-axis exciter. Therefore, lubrication cannot be performed by dropping the lubricating oil from above. When the lubricating oil level is raised, the lubricating oil is agitated and heat is generated. Therefore, although a part of the gear train 8 is dipped in the lubricating oil to scrape up the lubricating oil, the lubrication of the bearing is insufficient. The fifth problem is that the rolling bearings that support the case of the exciter are independent on the left and right, and lubrication is troublesome.

It is an object of the present invention to provide a novel biaxial vibration vibrating roller which solves the above-mentioned various problems of the prior art.

[0010]

In order to achieve the above object, the present invention provides a support attached to the left and right frames of a rolling wheel and a rotating shaft in a direction parallel to the rolling center line of the rolling wheel. A pair of eccentric shafts, and a vibrating element support element supported by at least one of the left and right supports to pivotally support the pair of eccentric shafts, and attached to the supports to rotate the pair of eccentric shafts. In a vibrating roller including a rotary drive mechanism and left and right rolling bearings that pivotally support the vibrating element support element and the rolling wheels, the vibrating element support element has a non-sealed structure, and the pair of eccentric shafts are provided. A biaxial vibration vibrating roller is configured such that a lubricating oil case containing lubricating oil is positioned inside the inner peripheral surface of the rolling wheel so as to be surrounded, and is fixedly mounted on the rolling wheel.

[0011]

The lubricating oil adhered to the inner wall of the lubricating oil case drips on the eccentric shaft from the upper portion of the opening of the vibrating element support element. In addition, due to the vibration of the vibration mechanism, the lubricating oil in the lubricating oil case also vibrates and becomes a part of atomized form, and enters from the opening of the vibrator support element. The lubricating oil and the sprayed lubricating oil dropped on the eccentric shaft return to the oil reservoir of the lubricating oil case after cooling the vibration mechanism. The heat in the lubricating oil that has cooled the vibration mechanism is efficiently transmitted to the rolling wheels through the lubricating oil case fixedly mounted on the rolling wheels and dissipated to the outside.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a plan sectional view of a rolling wheel of a biaxial vibration-vibration roller according to the present invention. Left and right end plates 3 and 3 are provided separately in the rolling wheel 1, and a vibration mechanism 4 is housed between the end plates 3 and 3. The vibrating mechanism 4 includes a vibrator support element 30 and the vibrator support element 30.
A pair of eccentric shafts 6 and 7 having eccentric weights 6a and 7a axially supported therein, a gear train 8 for rotationally driving the vibration generating shafts 6 and 7 and a vibration generating motor 9 are mainly configured. . Supports 10 are provided on the left and right frames 12 of the rolling wheels 1.
A and 10B are attached, and the vibrator support element 30 is
In this example, it is fixedly supported by the right support 10A. A shaft portion 32 having a shaft hole at the center is formed on a right side plate 31 which constitutes the vibrator support element 30, and a shaft hole 2a at the center of a support member 2 integral with the right end plate 3 is formed. The shaft portion 32 is supported via the rolling bearing 13. A drive shaft 16, which is connected to the rotary shaft of the vibration generating motor 9 via a coupling 15, is inserted through a roller bearing 17 into the shaft hole of the side plate 31. The vibration generating motor 9 is attached to the right support 10A, and this support 10A is attached to the frame 12 via a vibration isolation member 11A.

On the other hand, a rotation drive portion 14a of a traveling drive motor 14 with a speed reducer is fixed to the left end plate 3.
The drive motor 14 with a speed reducer is provided on the left side support 10B.
The support 10B is attached to the frame 12 via a vibration isolator 11B. The rolling wheel 1 is
The traveling drive is performed by the rotational drive of the traveling drive motor 14 with a speed reducer.

Between the end plates 3 and 3 of the rolling wheel 1, for example, a cylindrical lubricating oil case 50 is located inside the inner peripheral surface of the rolling wheel 1 so as to surround the vibration mechanism 4. It is fixed. Then, in the shaft hole 51a of the support member 51 fixed to the left end portion inside the lubricating oil case 50, the shaft portion 34 of the left side plate 33 that constitutes the vibrator support element 30 is inserted via the rolling bearing 13. It is supported.

The pair of eccentric shafts 6 and 7 supported by the vibrator support element 30 is in a horizontal positional relationship with the road surface, and the rolling bearings 18 are respectively provided on the left side plate 33 and the right side support plate 31 '. Is supported through. Power transmission to the pair of eccentric shafts 6 and 7 is performed by the gear train 8. That is, when the gear 20 fixed to the drive shaft 16 rotates, the driven gear 21 meshing with the gear 20 rotates and one eccentric shaft 6 rotates, and the drive gear fixed to the eccentric shaft 6 rotates. By means of 22, the gear 23 meshing with this rotates, and the other eccentric shaft 7 rotates in the opposite direction to the one eccentric shaft 6. At this time, the mutual relationship of the eccentric weights 6a and 7a of the eccentric shafts 6 and 7 and the eccentric position are eccentric with a phase difference of 180 degrees in the circumferential direction, and when they are rotated in the vertical state, they have the same vertical phase. Is set to.

With the above construction, the heat generated by the high-speed rotation of the pair of eccentric shafts 6 and 7 is the heat generated in FIG.
As shown in, the lubricating oil passes through the lubricating oil case and is transmitted to the rolling wheels as it is.

It is important that the vibrator support element 30 has a non-sealed structure. As shown in FIG. 2, a cylindrical member having bearing members 37 for supporting a pair of eccentric shafts 6 and 7 on both sides is arranged. Three
8 which has a large number of holes 38a,
As shown in FIG. 3, a bearing member 35 that supports a pair of vibrating shafts 6 and 7 may be disposed on both sides, and a plurality of frame members 36 may be used to connect the bearing members 35.

The lubricating oil case 50 fixed between the end plates 3 and 3 of the rolling wheel 1 has a lubricating oil 60 up to a predetermined level.
Built in. Vibration mechanism 4 inside the lubricating oil case 50
2 does not rotate, the lubricating oil case 50 rotates integrally with the rolling wheels 1, so that the lubricating oil adhered to the inner wall of the lubricating oil case 50 drips from above the vibrator support element 30, and In the case of, through the hole 38a, in the case of FIG.
Enter the exciter support element 30 towards the eccentric shafts 6, 7.
Further, the vibration of the vibration oscillating mechanism 4 also oscillates the lubricating oil 60 in the lubricating oil case 50, so that the lubricating oil 60 is partially atomized and enters from the opening of the vibration oscillating machine support element 30. The lubricating oil that has absorbed the heat returns to the oil reservoir of the lubricating oil case 50 from the lower opening of the vibrator support element 30.

FIG. 4 is a side view of the rolling wheel 1 as viewed from the right side in FIG. 1, in which a drain port 2c, a level port 2d and a filler port 2e are provided on a support member 2 which is integral with the end plate 3 and each of which is a plug. 2f, 2g and 2h are attached. The ports 2c, 2d, 2e are on the same surface as the end plate 3, and it is easy to change the oil and check the level of the lubricating oil.

In the above embodiment, the biaxial vibration vibrating roller constituted so that the vibration direction is only the vertical direction has been described, but as described above, in the rolling wheel,
The object of the present invention is a two-axis vibration vibrating roller that causes two eccentric shafts having a rotation axis in a direction parallel to the rolling wheel rotation center line to rotate in opposite directions to vibrate the ground portion of the rolling wheel. , It does not matter its vibration direction or vibration pattern. Further, although the rolling wheels provided with the driving motor for driving have been described, even the driven rolling wheels can sufficiently function without departing from the gist of the present invention.

[0021]

According to the biaxial vibration vibrating roller having the above structure, the following effects can be obtained. The heat generated by the rotation of the eccentric shaft is transferred from the lubricating oil to the lubricating oil case, and is also directly transferred from the lubricating oil case to the rolling wheels to be dissipated. The lubricating oil drain port, level port, and filler port are
Unlike the conventional case, it is not located inside the end plate, but is on the same surface as the end plate, so it is easy to perform oil replacement work and check the level of lubricating oil, and oil leaks can be immediately found from the outside, making it easy to check. Lubricating oil dripping from above the vibrating element support element becomes atomized due to the high speed rotation of the eccentric shaft,
In addition, the vibration of the vibration mechanism also causes the lubricating oil in the lubricating oil case to vibrate and become partly atomized, filling the lubricating oil case.
Lubrication of the bearing that supports the eccentric shaft and the rolling bearing that supports the vibrator support element is easy. Further, since the lubricating oil case is fixed inside the inner peripheral surface of the rolling wheel, it is not necessary to put a large amount of lubricating oil in the rolling wheel.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a rolling wheel of a biaxial vibration vibrating roller according to an embodiment of the present invention.

2 (a) and 2 (b) are a cross-sectional view of FIG. 1 and a transmission path diagram showing the ease of passing heat by the thickness of the path.

FIG. 3 is a cross-sectional view showing another example of FIG.

FIG. 4 is a side view of FIG.

FIG. 5 is a cross-sectional plan view of a rolling wheel of a conventional biaxial vibration-vibration roller.

6 (a) and 6 (b) are a lateral cross-sectional view of a rolling wheel of a conventional biaxially oscillating vibration roller and a diagram showing heat transfer by the thickness of a path.

7 is a sectional view taken along line VII-VII in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rolling wheel 2 ... Support member 2a ... Shaft hole 2b ... Round hole 2c ... Drain port 2d ... Level port 2e ... Filler port 2f ... Plug 2g ... Plug 2h ... Plug 3 ... End plate 4 ... Vibration mechanism 6 ... Excitation shaft 6a ... Eccentric weight 7 ... Excitation shaft 7a ... Eccentric weight 8 ... Gear train 9 ... Excitation motor 10A ... Support 10B ... Support 11A ... Anti-vibration member 11B ... Anti-vibration member 12 ... Frame 13 ... Rolling bearing 14 ... Motor for traveling drive with reduction gear 14a ... Rotation drive unit 15 ... Coupling 16 ... Drive shaft 17 ... Rolling bearing 18 ... Rolling bearing 20 ... Gear 21 ... Driven gear 22 ... Drive gear 23 ... Gear 30 ... Vibrator support element 31 ... Side plate 31 '... Support plate 32 ... Shaft part 33 ... Side plate 34 ... Shaft part 35 ... Bearing member 36 ... Frame body 37 ... Bearing member 38 ... Cylindrical member 8a ... hole 50 ... Lubricating oil case 51 ... support member 60 ... Lubricating oil

Claims (1)

[Claims] 1. A support member attached to left and right frames of a rolling wheel, a pair of eccentric shafts having a rotation axis in a direction parallel to a rolling wheel rotation center line, and a support member on at least one of the left and right supporting members. An oscillating machine support element that pivotally supports the pair of eccentric shafts, a rotation drive mechanism that is attached to the support and that rotates the pair of eccentric shafts, and an axis between the oscillating machine support element and the rolling wheels. In a vibrating roller having left and right rolling bearings to support, the vibration generator support element has a non-sealed structure, and a lubricating oil case containing a lubricating oil is surrounded by a rolling wheel so as to surround the pair of eccentric shafts. A two-axis vibration vibrating roller, which is positioned on the inner side of the inner peripheral surface of the above and is fixed to the rolling wheel.