Vibration structure and vibration mill

Abstract

The invention relates to the technical field of crushing equipment, and discloses a vibration structure and a vibration mill. The vibration structure comprises at least two vibration assemblies which are oppositely arranged. The vibration assembly comprises an eccentric wheel and a transmission shaft which is connected with the eccentric wheel and used for transmitting power. The oppositely arranged eccentric wheels can rotate in the same or opposite directions so as to weaken or counteract vibration of the opposite eccentric wheels on the machine body due to rotation. Based on the arrangement of the double eccentric wheels, vibration of the machine body caused by rotation of the opposite eccentric wheels is weakened or counteracted. The problems that due to the fact that forced vibration of a vibration mill in the prior art is large, all components are loosened due to forced vibration, abrasion is aggravated, and the service life is shortened are solved.

Description

Technical Field

[0001] The invention relates to the technical field of pulverizing equipment, in particular to a vibration structure and a vibration mill. Background Art

[0002] The particle size and morphology of magnesium chloride crushing and grinding in the activation method of magnesium chloride supported on polyolefin catalysts were studied. MgCl2, as an important carrier of polyolefin catalysts, can greatly improve the activity of catalysts. However, in anhydrous MgCl2 powder, the most common crystal form is α crystal form. This crystal form has a regular structure and no active groups on the surface, resulting in low catalyst activity. Therefore, it is necessary to use a grinding method to transform it into a δ lattice with higher disorder and more crystal defects to improve the activity of the catalyst.

[0003] Vibration mill is one of the most widely used equipment in the powder grinding industry. It is an important equipment for the activation of anhydrous MgCl2. Its manufacturing process is simple, and it has the advantages of high efficiency and energy saving, uniform product particle size distribution, and space saving. At the same time, its body has the characteristics of small swing amplitude, no rotary motion, and small impact force. It can achieve high filling rate and high frequency vibration rate, so that the productivity per unit volume is large and the energy utilization rate is higher. In addition, in addition to the impact crushing function, the vibration mill also has the function of grinding and crushing.

[0004] The existing vibration mill has a complex structure and high production cost. During the operation of the equipment, due to the large forced vibration of the equipment, the components will become loose due to the forced vibration, and the wear between the components will increase, which will greatly reduce the service life of the equipment and also pose certain safety hazards. Summary of the invention

[0005] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides a vibration structure and a vibration mill to solve the problem that the existing vibration mill is subjected to large forced vibration, which causes various components to loosen due to forced vibration, aggravates wear and reduces service life.

[0006] In order to achieve the above-mentioned object, the first aspect of the present invention provides a vibration structure, the vibration structure comprising at least two vibration components arranged opposite to each other; the vibration components comprising an eccentric wheel and a transmission shaft connected to the eccentric wheel for transmitting power;

[0007] The eccentric wheels arranged opposite to each other can rotate in the same or opposite directions to reduce or offset the vibration of the machine body caused by the rotation of the eccentric wheels in the opposite direction.

[0008] Based on the above technical solution, the vibration of the machine body caused by the rotation of the opposite eccentric wheel can be weakened or offset, thereby solving the problem that the vibration grinding in the prior art is caused by large forced vibration, resulting in loosening of components, increased wear and shortened service life.

[0009] Furthermore, the two eccentric wheels arranged opposite to each other are arranged to rotate in opposite directions.

[0010] Further:

[0011] The eccentric wheels arranged opposite to each other have the same initial state position;

[0012] or,

[0013] The eccentric wheels arranged relatively to each other have initial positions which are rotationally symmetrical;

[0014] Preferably, the rotational symmetry point of rotation and the power input point of the transmission shaft are located at the same position.

[0015] Furthermore, the initial positions of the eccentric wheels arranged opposite to each other are rotationally symmetrical; and the two eccentric wheels arranged opposite to each other are arranged to rotate in the same direction.

[0016] Furthermore, in the same vibration assembly, the rotation direction of the eccentric wheel is the same as the rotation direction of the transmission shaft.

[0017] Furthermore, the rotation speeds of the eccentric wheels arranged opposite to each other are the same.

[0018] Furthermore, the vibration assembly also includes a vibration wall connected to the eccentric wheel.

[0019] Preferably, the vibration wall is arranged on a side of the eccentric wheel facing away from the transmission shaft.

[0020] Preferably, a buffer spring is provided between the vibration wall and the machine body.

[0021] Further, the transmission shaft comprises a first shaft body, a first universal joint, a second shaft body, a second universal joint and a third shaft body which are connected in sequence;

[0022] Preferably, the second shaft is a telescopic connecting rod;

[0023] Preferably, a sleeve is slidably sleeved on the second shaft, and the sleeve is connected to the body via an elastic member.

[0024] A second aspect of the present invention provides a vibration mill, which includes a drive motor and the vibration structure; the drive motor is used to drive the eccentric wheels arranged opposite to each other to rotate simultaneously.

[0025] Based on the above technical solution, the vibration of the machine body caused by the rotation of the opposite eccentric wheel can be weakened or offset, thereby solving the problem that the vibration grinding in the prior art is caused by large forced vibration, resulting in loosening of components, increased wear and shortened service life.

[0026] Furthermore, the vibration mill also includes a material bowl, and the material bowl is arranged on the working surface of the vibration wall.

[0027] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an implementation mode of the vibration structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of another embodiment of the vibration structure of the present invention.

[0030] Description of Reference Numerals

[0031] 1 body; 2 vibration assembly; 2a transmission shaft; 2a1 first shaft body; 2a2 first universal joint; 2a3 second shaft body; 2a4 second universal joint; 2a5 third shaft body; 2b eccentric wheel; 2c vibration wall; 2d vibration shaft; 3 buffer spring; 4 input shaft; 5 sleeve. DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention are described in detail below. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] In the present invention, unless otherwise stated, the directional words such as "upper" and "lower" usually refer to the orientation in the assembled state. "Inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] The first aspect of the present invention provides a vibration structure. Figure 1 and Figure 2As shown, the vibration structure includes at least two vibration components 2 arranged opposite to each other. The vibration component 2 includes an eccentric wheel 2b and a transmission shaft 2a connected to the eccentric wheel 2b for transmitting power. The eccentric wheels 2b arranged opposite to each other can rotate in the same or opposite directions to weaken or offset the vibration of the opposite eccentric wheel 2b on the machine body 1 caused by the rotation.

[0036] Based on the setting of the double eccentric wheels, the vibration of the opposite eccentric wheel 2b on the machine body 1 due to rotation is weakened or offset, thereby solving the problem that the vibration grinding in the prior art is caused by large forced vibration, resulting in loosening of components, increased wear and reduced service life.

[0037] During operation, the rotation directions of the eccentric wheels 2b arranged opposite to each other can be the same direction or opposite directions. If the rotation directions of the eccentric wheels 2b are different, the initial position requirements of the eccentric wheels 2b are different. Specifically, if Figure 2 As shown, if the rotation directions of the eccentric wheels 2b arranged relatively to each other are the same and the initial positions of the eccentric wheels 2b are the same, the vibration cannot be reduced or offset, but the vibration will be aggravated. Therefore, when the initial positions of the eccentric wheels 2b are the same, the eccentric wheels 2b cannot rotate in the same direction. If the initial positions of the eccentric wheels 2b arranged relatively to each other are rotationally symmetrical (such as Figure 1 As shown), the rotation direction of the eccentric wheel 2b is the same or opposite, which can reduce or offset the vibration.

[0038] In a preferred embodiment of the present invention, Figure 1 As shown, the initial positions of the eccentric wheels 2b arranged relatively to each other are rotationally symmetrical, and the rotation directions of the eccentric wheels 2b are opposite during operation. Based on the design of the horizontal double eccentric wheels 7, since the double eccentric wheels on the same horizontal axis rotate in opposite directions, the forced vibrations applied to the inside of the device are opposite, and the two offset and reduce vibration wear, effectively reducing the forced vibration inside the device.

[0039] In the same vibration assembly 2, the rotation direction of the eccentric wheel 2b is the same as that of the transmission shaft 2a. The rotation speeds of the eccentric wheels 2b arranged opposite to each other are the same.

[0040] Furthermore, the vibration structure also includes a vibration wall 2c connected to the eccentric wheel 2b. The vibration wall 2c is arranged on the side of the eccentric wheel 2b away from the transmission shaft 2a. A buffer spring 3 is arranged between the vibration wall 2c and the body 1. One end of the buffer spring 3 is connected to the body 1, and the other end is connected to the vibration wall 2c. The buffer spring 3 plays the role of fixing the vibration wall 2c and transmitting vibration and resetting buffering to the vibration wall 2c. Furthermore, a vibration shaft 2d is fixed to the back of the vibration wall 2c. The eccentric wheel 2b is provided with an axial hole, and the vibration shaft 2d is sleeved in the axial hole; and a bearing is arranged between the vibration shaft 2d and the axial hole.

[0041] like Figure 1 or Figure 2 As shown, the transmission shaft 2a comprises a first shaft body 2a1, a first universal joint 2a2, a second shaft body 2a3, a second universal joint 2a4 and a third shaft body 2a5 which are connected in sequence. The third shaft body 2a5 is fixedly connected to the back of the main body of the eccentric wheel 2b.

[0042] The second shaft 2a3 is a telescopic connecting rod. The telescopic connecting rod can transmit the circumferential rotational force, and also has a certain telescopic space, so that the vibration wall 2c can vibrate up and down. The first shaft 2a1 and the third shaft 2a5 can also perform multi-angle torsion while transmitting the circumferential rotational force, so that the telescopic connecting rod can not only provide the rotational force, but also perform multi-angle torsion motion while following the eccentric wheel 2b / vibration wall 2c.

[0043] Furthermore, a sleeve 5 is slidably sleeved on the second shaft 2a3, and the sleeve 5 is connected to the body 1 via an elastic member (such as a spring). That is, one end of the elastic member is connected to the sleeve 5, and the other end is connected to the body 1.

[0044] The second aspect of the present invention provides a vibration mill, which includes a drive motor and the vibration structure. The drive motor is used to drive the eccentric wheels 2b arranged opposite to each other to rotate simultaneously.

[0045] In a preferred embodiment, the power input point of the transmission shaft 2a is located at the same position as the rotational symmetry point of the double eccentric wheel. After the drive motor is connected to the eccentric wheel 2b through the transmission shaft 2a, it only provides power. Since it is located at the center of the device, it will not vibrate, and is least affected by the forced vibration caused by the eccentric wheel 2b, and its service life is greatly extended.

[0046] It should be noted that the two vibration components 2 arranged opposite to each other may share a driving motor or be equipped with separate driving motors. Considering that the eccentric wheels 2b arranged opposite to each other preferably rotate simultaneously. Therefore, in a preferred embodiment of the present invention, the two vibration components 2 share a driving motor. Figure 1 or Figure 2 As shown, the power output end of the driving motor is connected to an input shaft 4. A gear or other transmission structure is connected to the input shaft 4. The input shaft 4 is simultaneously connected to the transmission shafts 2a of the two vibration components 2, so that the two vibration components 2 share one driving motor.

[0047] In addition, the vibration mill also includes a material bowl, which is arranged on the working surface of the vibration wall 2c. The material bowl is used to place material samples that need to be vibrated and crushed.

[0048] The vibration mill of the present invention has a simple overall structure and low manufacturing cost. Based on the setting of the vibration structure, the vibration of the opposite eccentric wheel 2b on the machine body 1 due to rotation is weakened or offset. The problem that the vibration mill in the prior art is caused by large forced vibration, resulting in loosening of components due to forced vibration, increased wear and reduced service life is solved.

[0049] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0051] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A vibration structure, characterized in that: The vibration structure comprises at least two vibration components (2) arranged opposite to each other; the vibration component (2) comprises an eccentric wheel (2b) and a transmission shaft (2a) connected to the eccentric wheel (2b) and used for transmitting power; The eccentric wheels (2b) arranged opposite to each other can rotate in the same or opposite directions to reduce or offset the vibration of the machine body (1) caused by the rotation of the eccentric wheels (2b) in the opposite direction.

2. The vibration structure according to claim 1, characterized in that The two eccentric wheels (2b) arranged opposite to each other are arranged to rotate in opposite directions.

3. The vibration structure according to claim 1 or 2, characterized in that: The eccentric wheels (2b) arranged opposite to each other are in the same initial position; or, The eccentric wheels (2b) arranged relatively to each other are rotationally symmetrical in their initial state positions; Preferably, the rotational symmetry point of rotation and the power input point of the transmission shaft (2a) are located at the same position.

4. The vibration structure according to claim 1, characterized in that The eccentric wheels (2b) arranged opposite to each other are rotationally symmetrical in their initial state positions; and the two eccentric wheels (2b) arranged opposite to each other are arranged to rotate in the same direction.

5. The vibration structure according to claim 1, characterized in that In the same vibration component (2), the rotation direction of the eccentric wheel (2b) is the same as the rotation direction of the transmission shaft (2a).

6. The vibration structure according to claim 1, characterized in that The rotation speeds of the eccentric wheels (2b) arranged opposite to each other are the same.

7. The vibration structure according to claim 1, characterized in that The vibration assembly (2) further comprises a vibration wall (2c) connected to the eccentric wheel (2b); Preferably, the vibration wall (2c) is arranged on a side of the eccentric wheel (2b) facing away from the transmission shaft (2a); Preferably, a buffer spring (3) is provided between the vibration wall (2c) and the machine body (1).

8. The vibration structure according to claim 1, characterized in that The transmission shaft (2a) comprises a first shaft body (2a1), a first universal joint (2a2), a second shaft body (2a3), a second universal joint (2a4) and a third shaft body (2a5) which are connected in sequence; Preferably, the second shaft (2a3) is a telescopic connecting rod; Preferably, a sleeve (5) is slidably sleeved on the second shaft (2a3), and the sleeve (5) is connected to the body (1) via an elastic member.

9. A vibration mill, characterized in that: The vibration mill comprises a driving motor and a vibration structure as claimed in any one of claims 1 to 8; the driving motor is used to drive the eccentric wheels (2b) arranged opposite to each other to rotate simultaneously.

10. The vibration mill according to claim 9, characterized in that: The vibration mill also includes a material bowl, which is arranged on the working surface of the vibration wall (2c).

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