CN212441931U - Shaking equipment for adjusting phase angle by utilizing spiral spline - Google Patents

Abstract

The utility model belongs to the technical field of shaking equipment, in particular to shaking equipment for adjusting a phase angle by utilizing a helical spline, which is provided with a first eccentric block component and a second eccentric block component which are arranged oppositely; the first eccentric block component is connected with a first driving component, and the first driving component drives the first eccentric block component to operate; the first driving assembly is provided with a first transmission assembly used for transmitting driving force; the first transmission assembly is used for driving the second eccentric block assembly; the first transmission assembly is provided with a spiral spline assembly; the spiral spline assembly is used for adjusting the phase angle of the second eccentric block assembly. According to the invention, the phase angle of the eccentric block assembly is adjusted through the spiral spline assembly, and parts are integrated in the spiral spline nut, so that the spiral spline assembly occupies less volume and has the advantage of being unavailable to a paper mill with precious space. In addition, the operation of adjusting the eccentric block by the spiral spline assembly is simple.

Description

Shaking equipment for adjusting phase angle by utilizing spiral spline

Technical Field

The utility model belongs to the technical field of shake equipment, concretely relates to utilize spiral spline to transfer equipment of shaking at phase angle.

Background

There are two general ways of adjusting the phase angle of the eccentric mass that are currently commercially available. One is that the adjustment is carried out by respectively installing a servo motor on two groups of eccentric block components, but the high-end servo motor has higher control requirement, the control system is more complicated, once a problem occurs at a fine part of the control system, the common electrician is more troublesome to handle, and the electromagnetic wave interference is easy to be caused. The other is to adjust the phase angle of the eccentric block by a mechanical adjustment mode, and the Chinese patent application No. 201810370815.7 discloses an amplitude-adjustable high-speed shaking box device and an amplitude adjustment method, wherein the device uses a pair of carrier gears to connect two pairs of left gears and two pairs of right gears together, thereby achieving the purposes of reducing the use of a servo motor and simplifying a control system thereof. However, the high-speed shaking box device has the defect that the high-speed shaking box device transmits between four pairs of gears through a pair of carrier gears, and because the carrier gears have high motion frequency and large contact area with the four pairs of gears, and meanwhile, the carrier gears are generally small and easy to damage, the maintenance frequency for the carrier gears is very high, and the aim of reducing the maintenance cost of the whole device cannot be effectively achieved in practice. In addition, for the transmission shaft where each right gear (including the upper right gear and the lower right gear) is located, electromagnetic clutches need to be installed at two ends of the transmission shaft respectively, so that the control system correspondingly needs to increase the control of the clutches, and the cost of the shaking device is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an utilize spiral spline to transfer equipment of shaking at phase angle through setting up spiral spline subassembly, solves the problem that the regulation structure is complicated that the tradition adjusted the phase angle.

The purpose of the utility model is realized like this:

a shaking device for adjusting a phase angle by utilizing a helical spline is provided with a first eccentric block assembly and a second eccentric block assembly which are oppositely arranged; the first eccentric block component is connected with a first driving component, and the first driving component drives the first eccentric block component to operate; the first driving assembly is provided with a first transmission assembly used for transmitting driving force; the first transmission assembly is used for driving the second eccentric block assembly; the first transmission assembly is provided with a spiral spline assembly; the spiral spline assembly is used for adjusting the phase angle of the second eccentric block assembly.

Preferably, the helical spline assembly comprises a helical spline nut and a spline spindle; the spline main shaft is fixedly connected with the second eccentric block component; the helical spline nut is sleeved on the spline main shaft, a helical area is arranged on the surface of the spline main shaft, and the axial movement of the helical spline nut is converted into the rotary motion of the spline main shaft.

Preferably, the inner wall of the helical spline nut is provided with an external thread groove, and the surface of the spline spindle is provided with an internal thread groove matched with the external thread groove.

Preferably, the shaking device further comprises a second motor which is fixed in position when in operation; a first threaded part is arranged in the spiral spline nut, and a first push-pull bearing is connected between the first threaded part and the inner side of the spiral spline nut; a second motor shaft of the second motor is fixedly connected with a second threaded part matched with the first threaded part; and the second motor shaft drives the helical spline nut to axially move when rotating.

Preferably, the first threaded member is an internal thread; the first threaded piece is provided with a first bearing groove; the first push-pull bearing is positioned in the first bearing groove; a gland is formed on the first threaded part; the gland is attached to one side of the helical spline nut.

Preferably, the first transmission assembly further comprises a driving wheel and a driven wheel; the driving wheel is connected with the first driving assembly; the driven wheel is meshed with the driving wheel; the spiral spline nut is provided with a straight key groove; and the driven wheel is provided with a straight key matched with the straight key groove.

Preferably, the shaking apparatus further comprises a core frame; the core frame is provided with a through hole; a first fixed seat and a second fixed seat are respectively arranged on two sides of the through hole; the first fixing seat and the second fixing seat are matched to form a sealed cavity for accommodating the first transmission assembly and the spiral spline assembly.

Preferably, a second motor seat is arranged on the first fixing seat, and the second motor is fixedly connected with the second motor seat.

Preferably, the first drive assembly further comprises a first motor and a first parallel coupling; the first motor and the second motor are both speed reducing motors; and two ends of the first parallel coupling are respectively connected with the first motor and the first eccentric block component.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. according to the invention, the phase angle of the eccentric block assembly is adjusted through the spiral spline assembly, and parts are integrated in the spiral spline nut, so that the spiral spline assembly occupies less volume and has the advantage of being unavailable to a paper mill with precious space. In addition, the operation of adjusting the eccentric block by the spiral spline assembly is simple. The invention can adjust the second eccentric block component in the running process of the machine, thereby avoiding the loss caused by the stopping of the machine.

2. The invention adopts a mode that the second motor, namely the speed reducing motor, drives the spiral spline assembly to realize the automatic operation of shaking. The speed reducing motor has the advantages of low rotating speed, large torque, small occupied volume, economy, durability, lower price, simple operation and control, difficult damage and no electromagnetic interference, and can meet the requirements of mass economical customers.

3. According to the invention, the first threaded part and the first push-pull bearing are arranged in the threaded spline nut for modularized integration, so that the threaded spline nut can be directly installed or disassembled, and is convenient to maintain and replace.

Drawings

FIG. 1 is a schematic view of a rocking structure with a spiral spline assembly according to a first embodiment.

FIG. 2 is a schematic diagram of a shaking structure with a spiral spline assembly according to the first embodiment.

Fig. 3 is a cross-sectional view of a second motor and spiral spline assembly connection in accordance with one embodiment.

Fig. 4 is an enlarged view of a in fig. 3.

Fig. 5 is an exploded view of a spiral spline assembly according to one embodiment.

Reference numerals: 1. a first eccentric block assembly; 2. a second eccentric block assembly; 3. a first drive assembly; 31. a first motor; 32. a first parallel coupling; 4. a first transmission assembly; 41. a second parallel coupling; 42. a driving wheel; 43. a driven wheel; 5. a spiral spline assembly; 51. a helical spline nut; 511. a first screw member; 5111. a first bearing groove; 5112. a gland; 512. a first push-pull bearing; 513. a straight key groove; 52. a splined main shaft; 6. a second motor; 61. a second motor mount; 62. a second motor shaft; 63. a second threaded member; 7. a core frame; 72. a first fixed seat; 73. a second fixed seat.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

As shown in figures 1-5, the shaking equipment for adjusting the phase angle by using the helical spline is connected with the breast roll, and can vibrate the breast roll by using the axial force so as to drive the mesh cloth sleeved on the breast roll to vibrate, and the pulp is uniformly distributed by using the physical action, so that the paper formation uniformity is improved, and the physical index is improved.

As shown in fig. 1 and 2, the shaking apparatus has a first eccentric block assembly 1 and a second eccentric block assembly 2 which are oppositely arranged. The first eccentric block component 1 and the second eccentric block component 2 both comprise two eccentric blocks which are oppositely arranged up and down. Thus, when in operation, the eccentric blocks arranged oppositely up and down can counteract the up and down eccentric force. The first eccentric block component 1 and the second eccentric block component 2 are both provided with a pair of gears which are positioned on two sides of the eccentric block, and the two gears are distributed up and down and are meshed for linkage. When the phase angles of the first eccentric block component 1 and the second eccentric block component 2 are symmetrical and consistent, the whole shake is in a balanced and stable state, and the amplitude generated by shake is zero at the moment. When the phase angles of the eccentric blocks of the first eccentric block assembly 1 and the second eccentric block assembly 2 are staggered, the balance is broken. The whole shaking generates regular axial amplitude operation under the action of axial centrifugal force. The structure has no reaction force, can not generate destructive force on the foundation, only needs to provide a platform for bearing the weight of the shake, does not need to be additionally reinforced and installed, and can be installed at a higher position away from the ground. The detailed principle can be found in the paper published in china journal of 2, month and 15 in 2015 [ structural features and performance analysis of the net shaking device ].

The first eccentric block component 1 is connected with a first driving component 3, and the first driving component 3 comprises a first parallel coupling 32 and a first motor 31. Two ends of the first parallel coupling 32 are respectively connected with the first eccentric block assembly 1 and the first motor 31. The first motor 31 drives the first eccentric block assembly 1 to operate through a first parallel coupling 32.

The first driving assembly 3 is provided with a first transmission assembly 4 for transmitting driving force; the first transmission assembly 4 is used for driving the second eccentric block assembly 2; the first transmission component 4 is provided with a spiral spline component 5; the spiral spline assembly 5 is used for adjusting the phase angle of the second eccentric block assembly 2. As shown in fig. 2, further, the first transmission assembly 4 includes a second parallel coupling 41; the second parallel coupling 41 is connected with the second eccentric block assembly 2; the helical spline assembly 5 comprises a helical spline nut 51 and a spline spindle 52; the spline main shaft 52 is fixedly connected with the second parallel coupling 41; the helical spline nut 51 is sleeved on the spline main shaft 52; the surface of the spline main shaft 52 is provided with a spiral area, the inner wall of the spiral spline nut 51 is provided with an external thread groove, and the surface of the spline main shaft 52 is provided with an internal thread groove matched with the external thread groove. Axial movement of the helical spline nut 51 is converted into rotational movement of the spline spindle 52. The traditional mode of mechanically adjusting the phase angle has complex structure and large volume. In contrast, the helical spline assembly 5 has a simple structure, and the parts are integrated in the helical spline nut 51, so that the volume of the phase angle adjusting device is greatly reduced, and the helical spline assembly is convenient to operate and maintain and has the advantage of being unavailable to paper mills with precious space.

As shown in fig. 3 and 4, further, a first threaded member 511 is installed in the helical spline nut 51, and the first threaded member 511 is an internal thread; a first bearing groove 5111 is formed in the first threaded part 511; a first push-pull bearing 512 is connected between the first screw 511 and the inner side of the helical spline nut 51; the outer race of the first push-pull bearing 512 closely fits the inside of the helical spline nut 51. A press cover 5112 is formed on the first screw piece 511; the gland 5112 is fitted to the side of the helical spline nut 51. The first screw 511 and the first push-pull bearing 512 of the present embodiment are modular in design, and are relatively tight during installation, and can be removed with the help of a tool after installation, which is relatively convenient.

In order to realize the automatic operation of the shaking equipment. The shaking of the embodiment further comprises a second motor 6; a second motor shaft 62 of the second motor 6 is fixedly connected with a second screw 63 matched with the first screw 511; the second screw 63 is an external thread; when the second motor shaft 62 rotates, the helical spline nut 51 is driven to move axially; when the second motor 6 is operated, the position of the second motor 6 is fixed. Thus, when the second motor shaft 62 of the second motor 6 is operated, the second motor 6 can drive the helical spline nut 51 to axially move through the threaded connection between the second screw 63 and the first screw 511. When the second motor 6 rotates forwards, the helical spline nut 51 moves forwards, so that the spline main shaft 52 is driven to rotate forwards; when the second motor 6 is reversed, the helical spline nut 51 moves backward, thereby reversing the spline spindle 52. The principle of the helical spline nut 51 moving axially to rotate the spline spindle 52 is prior art, and therefore the present embodiment will not be described in detail.

Further, in order to better transmit the driving force generated by the first driving assembly 3 to the second eccentric block assembly 2. The first transmission assembly 4 further comprises a driving wheel 42 and a driven wheel 43; the driving wheel 42 is connected and fixedly connected with a first motor shaft of the first motor 31. The driven wheel 43 is engaged with the driving wheel 42; the helical spline nut 51 is provided with a straight key groove 513; the driven wheel 43 is provided with a straight key matched with the straight key groove 513. Therefore, the driven wheel 43 is rigidly connected with the spiral spline nut 51, the driven wheel 43 and the spiral spline nut 51 are prevented from rotating relatively in the operation process to influence the operation of shaking, and in addition, the driving force can be better transmitted. When the helical spline nut 51 is not subjected to the axial force, the helical spline nut 51 drives the spline main shaft 52 to rotate at the same speed as the driven wheel 43. When the screw spline nut 51 rotates at the same speed as the driven pulley 43, the screw spline nut 51 can move along the straight key groove 513. The straight key groove 513 limits the range of axial movement of the helical spline nut 51.

Further, the shaking device of the present embodiment further includes a core frame 7; the core frame 7 is provided with a through hole; a first fixed seat 72 and a second fixed seat 73 are respectively arranged at two sides of the through hole; the first fixing seat 72 and the second fixing seat 73 cooperate to form a sealed cavity for accommodating the first transmission assembly 4 and the spiral spline assembly 5. The sealed cavity acts as a dust seal and helps to prolong the service life of the first transmission assembly 4 and the spiral spline assembly 5.

Further, a second motor base 61 is arranged on the first fixing base 72, and the second motor 6 is fixedly connected with the second motor base 61. Therefore, the second motor 6 is firmly fixed on the shaking, and the position of the second motor 6 is prevented from moving when the second motor runs, so that the helical spline nut 51 is driven to move axially better.

Further, the first motor 31 and the second motor 6 are both speed reduction motors. The speed reducing motor has low rotating speed and large torque, and is very suitable for being used as the driving force during shaking operation.

The specific working process of the scheme is as follows:

when the shake starts to operate, the first motor 31 starts to rotate. The first motor 31 operates the first eccentric block assembly 1 via a first parallel coupling 32. Simultaneously, the driving wheel 42 and the driven wheel 43 start to rotate together; the driven wheel 43 drives the helical spline nut 51 to rotate; the helical spline nut 51 drives the spline spindle 52 to rotate; the splined main shaft 52 runs the second eccentric block assembly 2 through the second parallel coupling 41. When the second motor 6 is not operated, the phase angles of the first eccentric block assembly 1 and the second eccentric block assembly 2 are consistent.

When the second motor 6 starts to run and the second motor shaft 62 rotates in the forward direction, the helical spline nut 51 moves forward, thereby rotating the spline spindle 52, and the rotation direction of the spline spindle 52 is consistent with the rotation direction of the driven wheel 43. The helical spline nut 51 thus accelerates the rotational speed of the splined spindle 52 and thus of the eccentric mass of the second eccentric mass assembly 2, so that the phase angle of said eccentric mass is increased. Therefore, the phase angle of the second eccentric block assembly 2 connected with the spline main shaft 52 is different from the phase angle of the first eccentric block assembly 1, balance among the eccentric block assemblies in the same state originally is broken, and phase difference is generated. The entire shake begins to run at regular axial amplitudes. If the second motor 6 stops running, the rotation speed of the spline spindle 52 is consistent with that of the first motor 31. But the phase difference between the first eccentric block assembly 1 and the second eccentric block assembly 2 remains unchanged. So that the entire shake continues to run at regular axial amplitudes. When the phase difference is 180 degrees, the shaking generates the maximum direction shaking force and the maximum amplitude.

Further, when the second motor shaft 62 is reversed, the helical spline nut 51 moves rearward, thereby rotating the spline spindle 52, the direction of rotation of the spline spindle 52 being opposite to the direction of rotation of the driven wheel 43. In this way, the helical spline nut 51 slows down the rotation speed of the spline main shaft 52, and further slows down the rotation speed of the eccentric block in the second eccentric block assembly 2, so that the phase angle of the eccentric block of the second eccentric block assembly 2 is reduced. At this time, the shaking force of the whole shaking is weakened.

Example two:

the present embodiment is substantially the same as the first embodiment, and the difference is: in the present embodiment, the outer ring of the first push-pull bearing is welded to the inner side of the helical spline nut, and the inner ring of the first push-pull bearing is welded to the first screw. When the position of the first push-pull bearing is positioned at the rear end of the first threaded part, the thread position of the first threaded part is not limited, and the first push-pull bearing can be designed into an external thread or an internal thread.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (9)

1. A shaking device for adjusting a phase angle by utilizing a helical spline is provided with a first eccentric block assembly (1) and a second eccentric block assembly (2) which are oppositely arranged; the first eccentric block component (1) is connected with a first driving component (3), and the first driving component (3) drives the first eccentric block component (1) to operate; the method is characterized in that: a first transmission assembly (4) for transmitting driving force is mounted on the first driving assembly (3); the first transmission assembly (4) is used for driving the second eccentric block assembly (2); the first transmission component (4) is provided with a spiral spline component (5); the spiral spline assembly (5) is used for adjusting the phase angle of the second eccentric block assembly (2).

2. The apparatus of claim 1, wherein the apparatus comprises: the helical spline assembly (5) comprises a helical spline nut (51) and a spline spindle (52); the spline main shaft (52) is fixedly connected with the second eccentric block assembly (2); the spiral spline nut (51) is sleeved on the spline main shaft (52), a spiral area is arranged on the surface of the spline main shaft (52), and the axial movement of the spiral spline nut (51) is converted into the rotary motion of the spline main shaft (52).

3. The apparatus of claim 2, wherein the apparatus comprises: the inner wall of the spiral spline nut (51) is provided with an external thread groove, and the surface of the spline main shaft (52) is provided with an internal thread groove matched with the external thread groove.

4. The apparatus of claim 2, wherein the apparatus comprises: the shaking equipment also comprises a second motor (6) with a fixed position when in operation; a first threaded part (511) is arranged in the spiral spline nut (51), and a first push-pull bearing (512) is connected between the first threaded part (511) and the inner side of the spiral spline nut (51); a second motor shaft (62) of the second motor (6) is fixedly connected with a second threaded part (63) matched with the first threaded part (511); the second motor shaft (62) drives the helical spline nut (51) to move axially when rotating.

5. The apparatus of claim 4, wherein the apparatus comprises: the first screw (511) is an internal thread; a first bearing groove (5111) is formed in the first threaded piece (511); the first push-pull bearing (512) is located within the first bearing groove (5111); a gland (5112) is formed on the first threaded piece (511); the gland (5112) is attached to one side of the spiral spline nut (51).

6. A shaking apparatus for adjusting the phase angle using helical splines as claimed in any one of claims 2-5, wherein: the first transmission assembly (4) further comprises a driving wheel (42) and a driven wheel (43); the driving wheel (42) is connected with the first driving component (3); the driven wheel (43) is engaged with the driving wheel (42); the spiral spline nut (51) is provided with a straight key groove (513); the driven wheel (43) is provided with a straight key matched with the straight key groove (513).

7. The apparatus of claim 6, wherein the apparatus comprises: the shaking device further comprises a core frame (7); the core frame (7) is provided with a through hole; a first fixed seat (72) and a second fixed seat (73) are respectively arranged at two sides of the through hole; the first fixing seat (72) and the second fixing seat (73) are matched to form a sealed cavity for accommodating the first transmission assembly (4) and the spiral spline assembly (5).

8. The apparatus of claim 7, wherein the helical spline is used to adjust the phase angle of the shake machine, and the apparatus further comprises: and a second motor base (61) is arranged on the first fixing base (72), and the second motor (6) is fixedly connected with the second motor base (61).

9. The apparatus of claim 8, wherein the helical spline is used to adjust the phase angle of the shake machine, and the apparatus further comprises: the first drive assembly (3) further comprises a first motor (31) and a first parallel coupling (32); the first motor (31) and the second motor (6) are both speed reducing motors; two ends of the first parallel coupling (32) are respectively connected with the first motor (31) and the first eccentric block assembly (1).

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