CN210031429U

CN210031429U - Positive and negative switching directional vibrating wheel

Info

Publication number: CN210031429U
Application number: CN201920168111.1U
Authority: CN
Inventors: 黄方权
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-02-07
Anticipated expiration: 2029-01-30

Abstract

The utility model belongs to the technical field of the vibrated roller, concretely relates to positive and negative directional vibration wheel that switches. The directional vibration wheel comprises a vibration roller and a vibration excitation barrel arranged in the vibration roller, wherein a larger eccentric shaft II, two smaller eccentric shafts I and three eccentric shafts III are arranged in the vibration excitation barrel, the three eccentric shafts are arranged in parallel, the eccentric shafts II and the vibration excitation barrel are coaxially arranged, and the eccentric shafts I and the eccentric shafts III are symmetrically arranged on two sides of the eccentric shaft II; the eccentric shaft II is connected with a vibration motor; the eccentric shaft II drives the eccentric shaft I and the eccentric shaft III to synchronously and reversely move through a transmission mechanism respectively; and the centrifugal force generated when the eccentric shaft II rotates is equal to the sum of the centrifugal forces generated when the eccentric shaft I and the eccentric shaft III rotate. Through the initial position of adjusting three eccentric shafts and the positive reverse switching of vibrating motor, the utility model discloses can realize the directional vibration in two kinds of not equidirectional directions on the comparatively simple basis of structure.

Description

Positive and negative switching directional vibrating wheel

Technical Field

The utility model belongs to the technical field of the vibrated roller, concretely relates to positive and negative directional vibration wheel that switches.

Background

The road roller is a construction machine mainly used for increasing the compactness of a working medium (a soil-rock filling and pavement paving mixed material). The earliest rollers were compacted using static force, i.e. the working medium was forced to compact by the static pressure generated by the self weight of the roller, with the development of the technology, it was found that the vibration load was able to put the working medium in a high frequency vibration state, which lost the internal friction between the working medium particles, thus achieving higher compaction efficiency and better compaction effect. Therefore, vibratory rollers are becoming the mainstream.

The vibration wheel is one of key parts of the vibration roller, and is a working device of the vibration roller and a walking device of the vibration roller.

The vibration wheel of a typical vertical vibration road roller consists of a vibration roller, a vibration excitation cylinder, a vibration mechanism arranged in the vibration excitation cylinder and other auxiliary components. However, the existing vibration mechanism has a complex structure and a single vibration function, and can only realize vertical vibration, so that improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

To the weak point among the above-mentioned prior art, the to-be-solved technical problem of the utility model is to provide a positive and negative directional vibration wheel that switches, the utility model discloses a be equipped with three eccentric shafts of laying along excitation section of thick bamboo axle orientation in the excitation section of thick bamboo, through the positive and negative switching of the initial position of adjusting three eccentric shafts and vibrating motor, can realize the directional vibration on two kinds of not equidirectional on the comparatively simple basis of structure.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

a positive and negative switching directional vibrating wheel comprises a vibrating roller and a vibration exciting cylinder arranged in the vibrating roller, wherein a larger eccentric shaft II, two smaller eccentric shafts I and three eccentric shafts III are arranged in the vibration exciting cylinder, the three eccentric shafts are arranged in parallel, the eccentric shaft II and the vibration exciting cylinder are coaxially arranged, and the eccentric shaft I and the eccentric shaft III are symmetrically arranged on two sides of the eccentric shaft II;

the eccentric shaft II is connected with a vibration motor; the eccentric shaft II drives the eccentric shaft I and the eccentric shaft III to synchronously and reversely move through a transmission mechanism respectively; and the centrifugal force generated when the eccentric shaft II rotates is equal to the sum of the centrifugal forces generated when the eccentric shaft I and the eccentric shaft III rotate.

As a preferred scheme of the utility model, two sides of the interior of the vibration roller are provided with supporting plates, and the vibration exciting cylinder is fixedly connected on the supporting plates through supporting bearings arranged at the outer sides of two axial ends of the cylinder body; the two ends of the eccentric shaft I, the eccentric shaft II and the eccentric shaft III are respectively fixed at the corresponding positions of the left bearing block and the right bearing block.

As a preferable scheme of the arrangement mode of the eccentric shafts, the sizes, the shapes and the materials of the first eccentric shaft and the third eccentric shaft are all completely the same.

As another preferable scheme of the arrangement mode of the eccentric shafts, the projection of the axis connecting line of the first eccentric shaft and the third eccentric shaft in the direction perpendicular to the axial direction of the excitation cylinder is any straight line passing through the center of the excitation cylinder.

As the first preferred scheme that the eccentric shaft constitutes, in the utility model, the eccentric shaft two is established including rotating the main shaft and rotationally overlapping rotating the epaxial movable eccentric block of main. The second eccentric shaft in the preferred scheme is of a combined structure, and the first eccentric shaft and the third eccentric shaft which are smaller in size can be of an eccentric integral structure or can be of a combined structure similar to the second eccentric shaft.

In the first preferred embodiment of the eccentric shaft, it is further preferred that the rotating main shaft of the eccentric shaft b includes a rotating shaft and a fixed eccentric block fixedly disposed on the rotating shaft, and the movable eccentric block is rotatably sleeved on the corresponding rotating shaft. In the preferred scheme, the rotating main shaft of the eccentric shaft II is also of a combined structure consisting of a rotating shaft and a fixed eccentric block, so that the fixed eccentric block can be replaced conveniently, and the excitation effect of different forces can be realized.

In the first preferred embodiment of the eccentric shaft, it is further preferred that a surface of the movable eccentric block, which is attached to the rotating main shaft, is provided with a rotation angle limiting groove, and the rotating main shaft is provided with a limiting block which is matched with the rotation angle limiting groove.

In the first preferred embodiment of the eccentric shaft, it is further preferred that, by adjusting the rotation angle of the movable eccentric block on the rotation main shaft, the vibration motor drives the eccentric shaft two to rotate forward and backward to realize any two directional vibrations of vertical vibration, different-angle oblique vibration and horizontal vibration of the vibration wheel, i.e. the vibration motor drives the eccentric shaft two to rotate forward and backward to realize any one of vertical vibration and horizontal vibration phase switching, vertical vibration and oblique vibration phase switching, horizontal vibration and oblique vibration phase switching and two different-angle oblique vibration phase switching.

As the second preferred scheme that the eccentric shaft constitutes, the utility model provides an arbitrary eccentric shaft in eccentric shaft one, eccentric shaft two and the eccentric shaft three all includes to rotate the main shaft and rotationally overlaps and establish rotate the epaxial movable eccentric block of owner. The first eccentric shaft, the second eccentric shaft and the third eccentric shaft in the optimal selection scheme are all of a combined structure, and the flexibility of the eccentric shaft is reflected.

In the second preferred embodiment of the present invention, it is further preferred that the rotating main shaft of any one of the eccentric shafts includes a rotating shaft and a fixed eccentric block fixedly disposed on the rotating shaft, and the movable eccentric block is rotatably sleeved on the corresponding rotating shaft.

In the second preferred embodiment of the present invention, it is further preferred that the eccentric shaft is driven by the vibration motor to rotate forward and backward by adjusting the rotation angle of the movable eccentric block on the corresponding rotation main shaft, so as to realize any two directional vibrations of vertical vibration, oblique vibration with different angles, vibration with the same angle and size, and horizontal vibration of the vibration wheel, that is, the vibration motor drives the eccentric shaft to rotate forward and backward so as to realize any one of the phase switching between vertical vibration and horizontal vibration, the phase switching between vertical vibration and oblique vibration, the phase switching between horizontal vibration and oblique vibration, the phase switching between oblique vibration with two different angles, and the phase switching between large vibration and small vibration with the same angle.

As a preferred scheme of the transmission mechanism, the transmission mechanism is a synchronous reverse transmission mechanism, the transmission mechanism comprises a first gear, a second gear and a third gear, the first gear is sleeved at a cylindrical section shaft body coaxial with the first eccentric shaft, the second gear is sleeved at a cylindrical section shaft body coaxial with the second eccentric shaft, the third gear is sleeved at a cylindrical section shaft body coaxial with the third eccentric shaft, and the second gear is respectively meshed with the first gear and the third gear. Because the three gears are all arranged at the cylindrical section shaft body of the corresponding eccentric shaft, good meshing can be realized between the second gear and the first gear and between the second gear and the third gear. When the eccentric shaft II is driven to rotate, the gear II rotates along with the cylindrical section shaft body coaxial with the eccentric shaft II, the gear II simultaneously pushes the gear I and the gear III to synchronously and reversely rotate, the gear I correspondingly drives the eccentric shaft I to rotate through the cylindrical section shaft body coaxial with the eccentric shaft I, and the gear III correspondingly drives the eccentric shaft III to rotate through the cylindrical section shaft body coaxial with the eccentric shaft III, so that the synchronous and reverse rotation of the eccentric shaft I, the eccentric shaft III and the eccentric shaft II is finally realized.

As a preferable scheme of the combination of the supporting device and the transmission mechanism of the utility model, two inner sides of the vibration roller are both provided with supporting plates, and the vibration cylinder is fixedly connected on the supporting plates through supporting bearings arranged at the outer sides of two axial ends of the cylinder body; the two ends of the eccentric shaft I, the eccentric shaft II and the eccentric shaft III are respectively fixed at the corresponding positions of the left bearing block and the right bearing block; the transmission mechanism is a synchronous reverse transmission mechanism and comprises a first gear, a second gear and a third gear, the first gear is sleeved at the cylindrical section shaft body coaxial with the first eccentric shaft, the second gear is sleeved at the cylindrical section shaft body coaxial with the second eccentric shaft, the third gear is sleeved at the cylindrical section shaft body coaxial with the third eccentric shaft, and the second gear is respectively meshed with the first gear and the third gear.

As a further preferable scheme of the foregoing scheme, an oil cylinder is arranged outside the excitation cylinder, the oil cylinder and the support plates on both sides enclose a closed lubricating oil cavity together, and a left oil pouring box and a right oil pouring box are respectively arranged on the inner wall of the oil cylinder along both ends of the excitation cylinder in the axial direction; the left oil pouring box corresponds to a support bearing and a left bearing seat on the left side of the lubricating and exciting cylinder, and the right oil pouring box corresponds to a support bearing and a right bearing seat on the right side of the lubricating and exciting cylinder; and the position of the transmission mechanism is arranged corresponding to the position of the left oil pouring box or the right oil pouring box.

The beneficial effects of the utility model reside in that:

1) the utility model discloses be equipped with three eccentric shafts in the excitation section of thick bamboo, wherein great one is eccentric shaft two, and less two then are eccentric shaft one and eccentric shaft three respectively. The eccentric shaft II is arranged at the center of the cylinder of the vibration exciting cylinder, and the axis of the eccentric shaft II is coincided with the cylinder shaft of the vibration exciting cylinder; the utility model discloses with eccentric shaft one and the three symmetric distribution in the both sides of eccentric shaft two. The second eccentric shaft in the utility model is directly driven by the vibrating motor, and the second eccentric shaft respectively drives the first eccentric shaft and the third eccentric shaft to do synchronous reverse motion through the transmission mechanism; and the centrifugal force generated when the eccentric shaft II rotates is equal to the sum of the centrifugal forces generated when the eccentric shaft I and the eccentric shaft III rotate.

Because the three eccentric shafts are arranged in parallel, the structure is relatively simple, and the installation is convenient. Through the adjustment to the initial position of three eccentric shafts, switching through vibrating motor's positive and negative rotation, the utility model discloses can realize the directional vibration of two kinds of not equidirectional enterprising in the comparatively simple basis of structure.

2) The size, shape and material of the first eccentric shaft and the third eccentric shaft are all completely the same, namely the first eccentric shaft and the third eccentric shaft in the scheme are completely the same. Because the eccentric shaft I and the eccentric shaft III are completely the same and are symmetrically distributed, the vibration of the eccentric shaft I and the eccentric shaft III in the vibration exciting cylinder mutually corresponds, and the reliability of the vibration is ensured.

3) The projection of the axis connecting line of the first eccentric shaft and the third eccentric shaft in the direction vertical to the axial direction of the excitation cylinder is any straight line passing through the center of the excitation cylinder, namely the projection of the axis connecting line of the first eccentric shaft and the third eccentric shaft in the direction vertical to the axial direction of the excitation cylinder and the shaft of the excitation cylinder can be at any angle. The utility model discloses a this kind of structural design, can realize the slant vibration of different angles better.

4) The utility model discloses an among the first preferred scheme about the eccentric shaft constitutes, will eccentric shaft two sets up to integrated configuration, and the eccentric shaft two is established including rotating the main shaft and rotationally the cover promptly rotate the epaxial movable eccentric block of owner. The position of the movable eccentric block relative to the rotating main shaft is adjustable, so that the vibration state in the whole vibration exciting cylinder has greater flexibility. In this first preferred embodiment, the rotating main shaft of the second eccentric shaft is composed of a rotating shaft and a fixed eccentric block fixed on the rotating shaft, the movable eccentric block is rotatably arranged on the rotating shaft, and the combination of the fixed eccentric block and the movable eccentric block realizes greater flexibility of the vibration state. Specifically, any two directional vibrations of vertical vibration, oblique vibration at different angles and horizontal vibration of the vibrating wheel can be realized by adjusting the rotating angle of the movable eccentric block on the rotating main shaft, namely adjusting the position of the movable eccentric block on the rotating main shaft, and driving the eccentric shaft to rotate forward and backward through the vibrating motor. The method can realize any two directional vibration states by the positive and negative rotation of the vibration motor, and can switch between any two directional vibration states, namely, realize any one vibration switching among vertical vibration and horizontal vibration phase switching, vertical vibration and oblique vibration phase switching, horizontal vibration and oblique vibration phase switching of two different angles.

The utility model provides an among the second preferred scheme about the eccentric shaft constitutes, will eccentric shaft one, eccentric shaft two, three of eccentric shaft all set up to integrated configuration, and arbitrary eccentric shaft all establishes including rotating the main shaft and rotationally overlapping promptly rotate the epaxial movable eccentric block of main, and arbitrary rotation main shaft again by the axis of rotation with set firmly in the epaxial fixed eccentric block of rotation and constitute, the movable eccentric block then rotationally sets up in the axis of rotation. In this second preferred embodiment, since the positions of the movable eccentric masses of the three eccentric shafts are adjustable relative to the main axis of rotation, the vibration state in the entire vibration-exciting cylinder is more flexible than in the first preferred embodiment formed by the eccentric shafts. Specifically, any two directional vibrations of vertical vibration, oblique vibration at different angles, large and small vibration at the same angle and horizontal vibration of the vibrating wheel can be realized by adjusting the rotating angle of the movable eccentric block on the rotating main shaft, namely adjusting the position of the movable eccentric block on the rotating main shaft, and driving the eccentric shaft to rotate forward and backward through the vibrating motor. The method can realize any two directional vibrations, namely, can realize any two directional vibration states through the forward and reverse rotation of the vibration motor, and can switch between any two directional vibration states, namely, realize any one vibration switching among vertical vibration and horizontal vibration phase switching, vertical vibration and oblique vibration phase switching, horizontal vibration and oblique vibration phase switching, oblique vibration phase switching of two different angles, and large and small vibration phase switching of the same angle.

5) The utility model discloses be provided with lubricating oil chamber in the inside of vibration gyro wheel, lubricating oil chamber is the closed area that encloses jointly by the backup pad of excitation section of thick bamboo, oil cylinder and both sides. In order to facilitate the oil injection into the lubricating oil cavity, an oil injection port can be arranged on the supporting plate, and the oil injection port is closed after lubricating oil is injected to prevent the oil from leaking. The utility model is provided with a left oil pouring box and a right oil pouring box respectively at the two ends of the inner wall of the oil cylinder along the axial direction of the excitation cylinder; the left oil pouring box corresponds to a support bearing and a left bearing seat on the left side of the lubricating and exciting cylinder, and the right oil pouring box corresponds to a support bearing and a right bearing seat on the right side of the lubricating and exciting cylinder; and the position of the transmission mechanism is arranged corresponding to the position of the left oil pouring box or the right oil pouring box. Through the arrangement of the lubricating oil cavity, the vibration work of the excitation cylinder can be continuously and stably carried out.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2a is a schematic side view of the inside of the exciting cylinder in fig. 1.

Fig. 2b is a partially enlarged view of the second eccentric shaft in fig. 2 a.

The three eccentric shafts in fig. 2c and 2d are all combined by a rotating main shaft and an eccentric block set, and the eccentric block set of any eccentric shaft is formed by combining a fixed eccentric block and a movable eccentric block, wherein the fixed eccentric blocks in the same eccentric shaft are fixed on the corresponding rotating shafts, and the movable eccentric blocks forming the same eccentric shaft can rotate around the corresponding rotating shafts by a set angle. Fig. 2c is a schematic view of a rotation state when the fixed eccentric block and the movable eccentric block are positioned on the same side of the rotation main shaft, and fig. 2d is a schematic view of a rotation state when the fixed eccentric block and the movable eccentric block are positioned on different sides of the rotation main shaft.

Fig. 2e and 2f are schematic views of rotation states of the three eccentric shafts in fig. 2c and 2d when the three eccentric shafts are respectively in forward large vibration and reverse small vibration, where the forward large vibration includes vertical forward large vibration, oblique forward large vibration and horizontal forward large vibration, and the reverse small vibration includes vertical reverse small vibration, oblique reverse small vibration and horizontal reverse small vibration.

FIG. 3a is a schematic structural diagram of an arrangement mode in which the plane where the axes of the three eccentric shafts are located in the vibration exciting cylinder is perpendicular to the horizontal plane.

FIG. 3b is a schematic structural diagram of an arrangement mode in which the plane where the axes of the three eccentric shafts are located in the vibration exciting cylinder intersects with the horizontal plane at an oblique angle.

Fig. 3c is a schematic structural diagram of an arrangement mode in which the plane where the axes of the three eccentric shafts in the vibration exciting cylinder are located is a horizontal plane.

FIG. 4 is a schematic view of the rotation angle of each eccentric shaft in the process of realizing vertical vibration by forward rotation of the eccentric shaft two and synchronous reverse rotation of the eccentric shaft one and the eccentric shaft three.

FIG. 5 is a schematic view of the rotation angle of each eccentric shaft in the process of realizing horizontal vibration by the reverse rotation of the eccentric shaft II and the triple synchronous forward rotation of the eccentric shaft I and the eccentric shaft.

Fig. 6 is a schematic structural diagram of switching between any two directional vibration states.

The notations in the figures have the following meanings:

1-vibrating roller 2-supporting bearing 3-left oil pouring box 4-left bearing seat

5- -first gear 6- -second gear 7- -third gear 8- -eccentric shaft I

9- -eccentric shaft two 10- -eccentric shaft three 11- -excitation barrel 12- -oil cylinder

13-vibrating bearing 14-right bearing seat 15-right oil pouring box 16-vibrating motor

17-movable eccentric block 18-rotating main shaft 19-limiting block 20-angle limiting groove

21- -fixed eccentric block 22- -rotating shaft

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments.

As shown in fig. 1 to 2a, the forward-reverse switching directional vibration wheel includes a vibration roller 1 and a vibration excitation cylinder 11 disposed inside the vibration roller 1, wherein three eccentric shafts are disposed in the vibration excitation cylinder 11: the eccentric shaft II 9 is a larger eccentric shaft II, the eccentric shaft I8 is two smaller eccentric shafts III 10, the three eccentric shafts are arranged in parallel, the eccentric shaft II 9 and the excitation cylinder 11 are coaxially arranged, namely, the axis of the eccentric shaft II 9 is coincided with the rotation center of the excitation cylinder 11; the eccentric shaft I8 and the eccentric shaft III 10 are symmetrically arranged on two sides of the eccentric shaft II 9.

As shown in fig. 1, the eccentric shaft II 9 is directly connected with the vibration motor 16; the second eccentric shaft 9 drives the first eccentric shaft 8 and the third eccentric shaft 10 to synchronously and reversely move through a transmission mechanism respectively; the centrifugal force generated when the eccentric shaft II 9 rotates is equal to the sum of the centrifugal forces generated when the eccentric shaft I8 and the eccentric shaft III 10 rotate.

As shown in fig. 1, support plates are arranged on both sides of the interior of the vibration roller 1, and the vibration drum 11 is fixedly connected to the support plates through support bearings 2 arranged on the outer sides of the two axial ends of the drum body; the two axial ends of the interior of the cylinder body of the excitation cylinder 11 are respectively provided with a left bearing seat 4 and a right bearing seat 14, and the two ends of the eccentric shaft I8, the eccentric shaft II 9 and the eccentric shaft III 10 are respectively fixed at the corresponding positions of the left bearing seat 4 and the right bearing seat 14.

Further, as shown in fig. 1, the excitation cylinder 11 of the present invention is integrally formed in a cylindrical shape, the excitation cylinder 11 is provided with overhanging-shaped placing ends along its axial two ends, and the excitation cylinder 11 is rotatably mounted on the support bearings 2 on both sides through the placing ends at its two ends. The inside of the excitation cylinder 11 is a cylindrical cavity, two end parts of the cylindrical cavity are respectively provided with a left bearing seat 4 and a right bearing seat 14, wherein the left bearing seat 4 is provided with three bearings which are respectively matched with the end parts of the eccentric shaft I8, the eccentric shaft II 9 and the eccentric shaft III 10, and the right bearing seat 14 is also correspondingly provided with three bearings. The mounting end of the vibration drum 11 is also cylindrical, and the vibration motor is disposed at one of the mounting ends.

As shown in fig. 1 and 2, the transmission mechanism is a synchronous reverse transmission mechanism, the transmission mechanism includes a first gear 5, a second gear 6 and a third gear 7, the first gear 5 is sleeved on a cylindrical section shaft coaxial with a first eccentric shaft 8, the second gear 6 is sleeved on a cylindrical section shaft coaxial with a second eccentric shaft 9, the third gear 7 is sleeved on a cylindrical section shaft coaxial with a third eccentric shaft 10, and the second gear 6 is respectively engaged with the first gear 5 and the third gear 7. The position of the transmission mechanism can be set at will, and the transmission mechanism can be arranged at the left end of the eccentric shaft, at the right end of the eccentric shaft and in the middle of the eccentric shaft. The transmission mechanism in this embodiment is disposed at the left end of the excitation cylinder 11.

As shown in fig. 1, an oil cylinder 12 is arranged outside the excitation cylinder 11, the oil cylinder 12 and the support plates at two sides together enclose a closed lubricating oil cavity, and a left oil pouring box 3 and a right oil pouring box 15 are respectively arranged at two ends of the inner wall of the oil cylinder 12 along the axial direction of the excitation cylinder 11; the left oil pouring box 3 corresponds to the support bearing 2 and the left bearing seat 4 on the left side of the lubricating vibration cylinder 11, and the right oil pouring box 15 corresponds to the support bearing 2 and the right bearing seat 14 on the right side of the lubricating vibration cylinder 11; the position of the transmission mechanism is arranged corresponding to the position of the left oil pouring box 3 or the right oil pouring box 15.

In the embodiment, the sizes, the shapes and the materials of the eccentric shafts I8 and III 10 are completely the same, so that the eccentric shaft is convenient to produce and replace and is beneficial to the balance and the reliability of vibration.

As shown in fig. 3a to 3c, the projection of the connecting line of the axes of the eccentric shafts 8 and the eccentric shafts 10 in the direction perpendicular to the axial direction of the excitation cylinder 11 is any straight line passing through the center of the excitation cylinder 11. Specifically, the projection of the line connecting the axes of the eccentric shafts 8 and 10 in the direction perpendicular to the axial direction of the vibration exciting cylinder 11 may be a perpendicular line passing through the center of the vibration exciting cylinder 11 (see fig. 3a), a horizontal line (see fig. 3c), or a slant line (see fig. 3b) forming an arbitrary angle with the perpendicular line.

The vibration process of the present invention will be briefly described by taking the projection of the axis connecting line of the eccentric shaft i 8 and the eccentric shaft i 10 in the direction perpendicular to the axial direction of the vibration exciting cylinder 11 as an example, i.e. the perpendicular line passing through the center of the vibration exciting cylinder 11:

as shown in fig. 4, the forward rotation movement of the three eccentric shafts is from 0 to 360 degrees. Firstly, all the three eccentric shafts are in a free sagging state (namely, the static initial state shown in fig. 4), then the eccentric shaft II 9 rotates forwards under the action of the vibration motor 16, the eccentric shaft I8 and the eccentric shaft III 10 rotate backwards synchronously under the action of the transmission mechanism, and finally the rotation of 360 degrees is completed, so that the vertical vibration is realized (see the schematic angle states of 180 degrees and 360 degrees in fig. 4).

As shown in fig. 5, the reverse motion of the three eccentric shafts is from 0 ° to 360 °. Firstly, all the three eccentric shafts are in a free sagging state (namely, the static initial state shown in fig. 5), then the eccentric shaft II 9 is reversely rotated under the action of the vibration motor 16, the eccentric shaft I8 and the eccentric shaft III 10 are synchronously and forwardly rotated under the action of the transmission mechanism, and finally, the rotation of 360 degrees is completed, and the horizontal vibration is realized (see the angle state schematic diagrams at 90 degrees and 270 degrees in fig. 5).

In order to realize better vibration state, as the utility model discloses a first embodiment of eccentric shaft, the utility model provides an eccentric shaft two 9 sets up to integrated configuration, as shown in fig. 2a, 2b promptly, eccentric shaft two 9 is established including rotating main shaft 18 and rotationally the cover movable eccentric block 17 on the main shaft 18 rotates.

In this first embodiment, referring to fig. 2c and 2d, the eccentric shaft two 9 may further comprise a rotating shaft 22, and a fixed eccentric block 21 and a movable eccentric block 17 rotatably sleeved on the rotating shaft 22, wherein the fixed eccentric block 21 is fixedly disposed on the rotating shaft 22, and the movable eccentric block 17 is rotatably disposed on the rotating shaft 22. The fixed eccentric block 21 is detachably connected with the rotating shaft 22, so that the fixed eccentric block 21 can be replaced conveniently.

In this first embodiment, as shown in fig. 2a, the smaller sized eccentric shafts one 8 and three 10 are both of a unitary construction.

Specifically, as shown in fig. 2a and 2b, a rotation angle limiting groove 20 is disposed on a surface of the movable eccentric block 17, which is attached to the rotation main shaft 18, and a limiting block 19, which is matched with the rotation angle limiting groove 20, is disposed on the rotation main shaft 18. Of course, it is also possible to provide a rotation angle limiting groove on the rotation main shaft 18 and a limiting block 19 on the movable eccentric block 17.

Through the combined structure, the position of the movable eccentric block 17 is limited by the rotation angle limiting groove 20 when rotating, thereby realizing the adjustment of different vibration states.

Specifically, by adjusting the rotation angle of the movable eccentric block 17 on the rotation main shaft 18, the vibration motor 16 drives the eccentric shaft two 9 to rotate forward and backward to realize any two kinds of directional vibration of the vertical vibration, the oblique vibration with different angles and the horizontal vibration of the vibration wheel, namely, the vibration motor 16 drives the eccentric shaft two 9 to rotate forward and backward to realize any one kind of vibration switching among the vertical vibration, the horizontal vibration, the oblique vibration and the horizontal vibration, and the oblique vibration with two different angles.

The arrows in fig. 6 point in the direction of the resultant of the centrifugal forces, i.e. three eccentric shafts. Fig. 6 shows the switching of four different vibration states, respectively: switching between forward rotation vertical vibration and reverse rotation oblique vibration, switching between forward rotation vertical vibration and reverse rotation horizontal vibration, switching between forward rotation horizontal vibration and reverse rotation oblique vibration, and switching between forward rotation oblique vibration and reverse rotation oblique vibration.

In order to realize more better vibration states, as the utility model discloses a second kind of embodiment of eccentric shaft, the utility model provides an eccentric shaft 8, eccentric shaft two 9 and eccentric shaft three 10 all set up to integrated configuration to explain for example the eccentric shaft two 9 shown in figure 2c, 2d, eccentric shaft two 9 include axis of rotation 22 and rotationally overlap and establish fixed eccentric block 21 and the activity eccentric block 17 in axis of rotation 22, wherein fixed eccentric block 21 is fixed to be set up in axis of rotation 22, and activity eccentric block 17 then rotationally set up in axis of rotation 22 is last. It should be noted that the fixed eccentric block 21 and the rotating shaft 22 in this embodiment are detachably connected to facilitate replacement of the fixed eccentric block 21. The structure of the eccentric shaft I8 and the eccentric shaft III 10 is similar to that of the eccentric shaft II 9, and the description is omitted.

In this second embodiment, the fixed eccentric blocks 21 of the three eccentric shafts can be easily replaced with different sizes, and the movable eccentric blocks 17 can be rotated by a set angle according to the design, so that the fixed eccentric blocks 21 and the movable eccentric blocks 17 are combined, and the vibration state of the vibration exciter is more diversified and flexible.

The fitting relationship between the movable eccentric mass 17 and the rotating shaft 22 can be found in the description of the first embodiment.

In the second embodiment, by adjusting the rotation angle of the movable eccentric block on the corresponding rotation main shaft, the vibration motor 16 drives the eccentric shaft two 9 to rotate forward and backward to realize vertical vibration of the vibration wheel, different-angle oblique vibration, vibration with the same angle and horizontal vibration, namely, the vibration motor 16 drives the eccentric shaft two 9 to rotate forward and backward to realize any one of vertical vibration and horizontal vibration phase switching, vertical vibration and oblique vibration phase switching, horizontal vibration and oblique vibration phase switching, two different-angle oblique vibration phase switching and same-angle large-small vibration phase switching.

That is, the three combined eccentric shafts one 8, two 9 and three 10 in the second embodiment can also realize the vibration switching shown in fig. 6.

However, in this second embodiment, it is also possible to switch between the normal rotation large vibration as shown in fig. 2e and the reverse rotation small vibration as shown in fig. 2 f. Specifically, the method comprises the following steps: in the vertical direction positive rotation large vibration shown in fig. 2e, the fixed eccentric block and the movable eccentric block of the three eccentric shafts vibrate downwards, so that the maximum vibration effect is realized; in the vertical direction reversal small vibration shown in fig. 2e, the fixed eccentric blocks of the three eccentric shafts are all vibrated downwards, and the movable eccentric blocks are all lifted upwards, and the fixed eccentric blocks and the movable eccentric blocks are overlapped to realize the minimum vibration effect. In the large oblique forward rotation vibration shown in fig. 2e, the fixed eccentric blocks and the movable eccentric blocks of the three eccentric shafts are overlapped together and are vibrated downwards, so that the maximum vibration effect at the oblique angle is realized; in the small obliquely inverted vibration shown in fig. 2e, the fixed eccentric mass and the movable eccentric mass of the three eccentric shafts are all separated from each other, achieving the minimum vibration effect at this same oblique angle. In the horizontal direction positive rotation large vibration shown in fig. 2e, the fixed eccentric blocks and the movable eccentric blocks of the three eccentric shafts are overlapped together to realize the maximum vibration effect in the horizontal direction; in the horizontal direction reversal small vibration shown in fig. 2e, the fixed eccentric masses of the three eccentric shafts are all separated from each other, achieving the minimum vibration effect in the horizontal direction.

Claims

1. The utility model provides a directional vibration wheel of positive and negative switching, includes vibration gyro wheel (1) and sets up at vibration gyro wheel (1) inside shock tube (11), its characterized in that: a larger eccentric shaft II (9), two smaller eccentric shafts I (8) and three eccentric shafts (10) are arranged in the excitation cylinder (11), the three eccentric shafts are arranged in parallel, the eccentric shafts II (9) and the excitation cylinder (11) are coaxially arranged, and the eccentric shafts I (8) and the eccentric shafts III (10) are symmetrically arranged on two sides of the eccentric shaft II (9);

the eccentric shaft II (9) is connected with a vibration motor (16); the second eccentric shaft (9) drives the first eccentric shaft (8) and the third eccentric shaft (10) to synchronously and reversely move through a transmission mechanism respectively; and the centrifugal force generated when the eccentric shaft II (9) rotates is equal to the sum of the centrifugal forces generated when the eccentric shaft I (8) and the eccentric shaft III (10) rotate.

2. The vibrating wheel of claim 1, wherein: supporting plates are arranged on two sides of the interior of the vibration roller (1), and the vibration exciting cylinder (11) is fixedly connected to the supporting plates through supporting bearings (2) arranged on the outer sides of two axial ends of the cylinder body; the vibration exciter is characterized in that a left bearing seat (4) and a right bearing seat (14) are respectively arranged at two axial ends of the interior of the cylinder body of the vibration exciting cylinder (11), and two ends of the eccentric shaft I (8), the eccentric shaft II (9) and the eccentric shaft III (10) are respectively fixed at corresponding positions of the left bearing seat (4) and the right bearing seat (14).

3. The vibrating wheel of claim 1, wherein: the size, the shape and the material of the eccentric shaft I (8) and the eccentric shaft III (10) are completely the same.

4. The vibrating wheel of claim 1, wherein: the projection of the axis connecting line of the eccentric shaft I (8) and the eccentric shaft III (10) in the direction vertical to the axial direction of the excitation cylinder (11) is any straight line passing through the center of the excitation cylinder (11).

5. The vibration wheel according to any one of claims 1 to 4, wherein: the eccentric shaft II (9) comprises a rotating main shaft (18) and a movable eccentric block (17) which is rotatably sleeved on the rotating main shaft (18).

6. The vibrating wheel of claim 5, wherein: the rotating main shaft (18) of the eccentric shaft II (9) comprises a rotating shaft and a fixed eccentric block (21) fixedly arranged on the rotating shaft, and the movable eccentric block is rotatably sleeved on the corresponding rotating shaft.

7. The vibrating wheel of claim 5, wherein: the surface of the movable eccentric block (17) attached to the rotating main shaft (18) is provided with a rotating angle limiting groove (20), and the rotating main shaft (18) is provided with a limiting block (19) matched with the rotating angle limiting groove (20).

8. The vibrating wheel of claim 5, wherein: by adjusting the rotation angle of the movable eccentric block (17) on the rotation main shaft (18), the vibration motor (16) drives the eccentric shaft II (9) to rotate forward and backward to realize any two kinds of directional vibration of the vertical vibration, the oblique vibration with different angles and the horizontal vibration of the vibration wheel, namely the vibration motor (16) drives the eccentric shaft II (9) to rotate forward and backward to realize any one kind of vibration switching among the vertical vibration, the horizontal vibration, the oblique vibration, the horizontal vibration and the oblique vibration, and the oblique vibration with two different angles.

9. The vibration wheel according to any one of claims 1 to 4, wherein: any one of the eccentric shaft I (8), the eccentric shaft II (9) and the eccentric shaft III (10) comprises a rotating main shaft and a movable eccentric block which is rotatably sleeved on the rotating main shaft.

10. The vibrating wheel of claim 9, wherein: the rotating main shaft of any eccentric shaft comprises a rotating shaft and a fixed eccentric block (21) fixedly arranged on the rotating shaft, and the movable eccentric block is rotatably sleeved on the corresponding rotating shaft.

11. The vibrating wheel of claim 9, wherein: by adjusting the rotation angle of the movable eccentric block on the corresponding rotation main shaft, the vibration motor (16) drives the eccentric shaft II (9) to rotate forward and backward to realize any two kinds of directional vibration in vertical vibration, oblique vibration with different angles, vibration with the same angle and size and horizontal vibration of the vibration wheel, namely the vibration motor (16) drives the eccentric shaft II (9) to rotate forward and backward to realize any one kind of vibration switching among vertical vibration, horizontal vibration, vertical vibration phase switching, horizontal vibration, oblique vibration phase switching with two different angles and vibration phase switching with the same angle and size.

12. The vibrating wheel of claim 1, wherein: the transmission mechanism is a synchronous reverse transmission mechanism and comprises a first gear (5), a second gear (6) and a third gear (7), the first gear (5) is sleeved at a cylindrical section shaft body coaxial with the first eccentric shaft (8), the second gear (6) is sleeved at a cylindrical section shaft body coaxial with the second eccentric shaft (9), the third gear (7) is sleeved at a cylindrical section shaft body coaxial with the third eccentric shaft (10), and the second gear (6) is respectively meshed with the first gear (5) and the third gear (7).

13. The vibrating wheel of claim 2, wherein: the transmission mechanism is a synchronous reverse transmission mechanism and comprises a first gear (5), a second gear (6) and a third gear (7), the first gear (5) is sleeved at a cylindrical section shaft body coaxial with the first eccentric shaft (8), the second gear (6) is sleeved at a cylindrical section shaft body coaxial with the second eccentric shaft (9), the third gear (7) is sleeved at a cylindrical section shaft body coaxial with the third eccentric shaft (10), and the second gear (6) is respectively meshed with the first gear (5) and the third gear (7).

14. The vibrating wheel of claim 13, wherein: an oil cylinder (12) is arranged on the outer side of the excitation cylinder (11), a closed lubricating oil cavity is enclosed by the excitation cylinder (11), the oil cylinder (12) and the support plates on the two sides, and a left oil pouring box (3) and a right oil pouring box (15) are respectively arranged on the inner wall of the oil cylinder (12) at two ends in the axial direction of the excitation cylinder (11); the left oil pouring box (3) corresponds to the supporting bearing (2) and the left bearing seat (4) on the left side of the lubricating vibration cylinder (11), and the right oil pouring box (15) corresponds to the supporting bearing (2) and the right bearing seat (14) on the right side of the lubricating vibration cylinder (11); the position of the transmission mechanism corresponds to the position of the left oil pouring box (3) or the right oil pouring box (15).