Vibration dewatering device

Abstract

The utility model provides a vibration dewatering device which comprises a base, a vibration dewatering device body and a vibration dewatering device body. Springs are arranged on the lower portions of the two sides of the screen box and connected with the upper portion of the base, a transverse frame is arranged on the upper portion of the screen box and stretches across the screen box, and the two ends of the transverse frame are fixed to the screen box; the number of the vibration motors is two, and the two vibration motors are symmetrically installed on the transverse frame; wherein the vibration motor comprises a main body, an output shaft, a first eccentric block and a second eccentric block, and the output shaft is installed in the main body. The first eccentric block and the second eccentric block which can adjust the included angle are arranged on the vibration motor, the eccentric position of the mass center can be adjusted by adjusting the positions of the first eccentric block and the second eccentric block, and the amplitude of the screen box can be adjusted under the condition that the rotating speed of the vibration motor is not changed; therefore, the amplitude and the vibration strength of the screen box can be adjusted in a larger range, and the dewatering requirements of different gravels are met.

Description

Technical Field

[0001] The present application relates to the technical field of sand and gravel dehydration equipment, and in particular to a vibration dehydration device. Background Art

[0002] In sand and gravel plants, ore dressing plants, water treatment plants and other enterprises, it is often necessary to dehydrate the mud. Among them, the dehydration vibrating screen is a commonly used equipment. After the eccentric block is driven by two vibrating motors to rotate and generate vibration, the vibrations in the vertical direction are superimposed on each other, and the vibrations in the horizontal direction offset each other, so that the screen box with the screen plate installed vibrates in the vertical direction. When the mud flows through the screen plate, the solid matter will be separated from the water, and the dehydrated solid matter will continue to slide out from the bottom of the screen plate under the action of vibration to complete the dehydration. For example, a Chinese patent with application number 202210182606.6 discloses a high-efficiency sand and gravel dewatering screen, which includes a frame and a screen box. The screen box is tilted on the frame by four front and rear springs. A screen body is provided at the bottom of the screen box. A vibration motor is provided near the middle of the screen box. The structure of the eccentric hammer of the vibration motor in the existing equipment is fixed, and the amplitude and vibration intensity of the screen box are adjusted by the speed of the motor. However, the rated speed of the motor is relatively fixed, and the adjustable speed range is small. Simply by increasing the speed of the motor, the adjustable range is also small. Therefore, a vibration dewatering device is provided, and the eccentric block on the vibration motor is adjustable, so as to adjust the amplitude and vibration intensity of the screen box within a larger range to meet the dehydration needs of different sand and gravel. Utility Model Content

[0003] In order to solve the above problems, the present application proposes a vibration dehydration device, in which the eccentric block on the vibration motor is adjustable so as to adjust the amplitude and vibration intensity of the screen box within a larger range to meet the dehydration requirements of different sand and gravel.

[0004] This application is implemented through the following technical solutions:

[0005] The present application proposes a vibration dehydration device, comprising:

[0006] A base, the base being mounted on the ground via supporting feet;

[0007] A screen box, wherein the lower parts of both sides of the screen box are provided with springs connected to the upper part of the base, and the upper part of the screen box is provided with a cross frame, which spans the screen box, and the two ends of the cross frame are fixed on the screen box;

[0008] Vibration motors, there are two vibration motors, and the two vibration motors are symmetrically mounted on a horizontal frame;

[0009] Among them, the vibration motor includes a main body, an output shaft, a first eccentric block, and a second eccentric block. The output shaft is installed in the main body, and both ends of the output shaft extend symmetrically from both sides of the main body. The first eccentric block is nested inside the second eccentric block, and the first eccentric block and the second eccentric block are installed on both sides of the output shaft.

[0010] Furthermore, a mounting groove is provided in the middle of the second eccentric block, and the first eccentric block is mounted in the mounting groove.

[0011] Furthermore, the center of mass of the first eccentric block and the center of mass of the second eccentric block are both on the central plane of the mounting groove.

[0012] Furthermore, the output shaft is provided with an external spline portion and a threaded portion, one side of the first eccentric block and the second eccentric block is connected to the external spline portion via a connecting ring, and the threaded portion clamps the second eccentric block via a nut.

[0013] Furthermore, an inner spline matching the outer spline portion is provided on the inner wall of the connecting ring.

[0014] Furthermore, the nut is provided with a slot, and the threaded portion is provided with a radial through hole. After the nut is tightened, the nut is connected to the radial through hole through a pin shaft.

[0015] Furthermore, a sieve plate is provided in the sieve box, the sieve plate is obliquely installed at the lower part of the sieve box, the upper end surface of the cross frame is parallel to the sieve plate, and the vibration motor is installed parallel to the upper end surface of the cross frame.

[0016] The beneficial effects of the present application are as follows: by arranging a first eccentric block and a second eccentric block whose mutual angles can be adjusted on the vibration motor, the eccentric position of the center of mass can be adjusted by adjusting the positions of the first eccentric block and the second eccentric block, and the amplitude of the screen box can be adjusted without changing the rotation speed of the vibration motor, so that the amplitude and vibration intensity of the screen box can be adjusted within a larger range to meet the dehydration requirements of different sand and gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of the vibration motor of the utility model;

[0019] Figure 3 This is a schematic diagram when the first eccentric block and the second eccentric block have an included angle;

[0020] Figure 4 is a schematic diagram of the first eccentric block and the second eccentric block overlapping;

[0021] In the figure: 1-base, 2-supporting foot, 3-screen box, 4-cross frame, 5-vibration motor, 6-spring, 7-main body, 8-output shaft, 9-first eccentric block, 10-second eccentric block, 11-installing groove, 12-external spline part, 13-threaded part, 14-connecting ring, 15-nut. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0025] like Figures 1 to 4 As shown, an embodiment of the utility model provides a vibration dehydration device, comprising: a base 1, which is installed on the ground through supporting feet 2; a screen box 3, wherein the lower parts of both sides of the screen box 3 are provided with springs 6 connected to the upper part of the base 1, and the upper part of the screen box 3 is provided with a cross frame 4, which spans the screen box 3, and both ends of the cross frame 4 are fixed on the screen box 3; a vibration motor 5, wherein there are two vibration motors 5, and the two vibration motors 5 are symmetrically installed on the cross frame 4; wherein the vibration motor 5 comprises a main body 7, an output shaft 8, a first eccentric block 9, and a second eccentric block 10, wherein the output shaft 8 is installed in the main body 7, and both ends of the output shaft 8 extend symmetrically from both sides of the main body 7, the first eccentric block 9 is nested in the second eccentric block 10, and the first eccentric block 9 and the second eccentric block 10 are installed on both sides of the output shaft 8.

[0026] When the equipment is running, the output shaft 8 on the vibration motor 5 drives the first eccentric block 9 and the second eccentric block 10 to rotate. Since the center of mass of the first eccentric block 9 and the second eccentric block 10 is not on the center of the circle of the output shaft 8, the first eccentric block 9 and the second eccentric block 10 will vibrate under the action of centrifugal force after rotation. The vibration motors 5 are symmetrically installed on the cross frame 4. By adjusting the rotation phase of the two vibration motors 5, the lateral vibrations of the two vibration motors 5 offset each other, and the longitudinal vibrations are superimposed on each other, so that the screen box 3 vibrates in a straight line. When the mud flows through the sieve plate on the screen box 3, it shakes under the action of vibration, and the water in the mud quickly flows into the sump on the base 1 through the sieve holes on the sieve plate, while the sand and gravel in the mud stay on the sieve plate and continue to vibrate before sliding from the bottom of the sieve plate into the aggregate trough.

[0027] For sand and gravel with different particle sizes and mud with different water content, the optimal dehydration amplitude and frequency are also different. The worker can adjust the speed of the vibration motor 5 or adjust the offset distance of the center of mass through the position of the first eccentric block 9 and the second eccentric block 10. The operation method is that after the worker removes the protective covers on both sides of the vibration motor 5, pulls out the pin shaft in the radial through hole, loosens the nut 15, and then removes the first eccentric block 9 and the second eccentric block 10, and then adjusts the angle between the first eccentric block 9 and the second eccentric block 10. When the angle between the two eccentric blocks is 180°, the center of mass of the two eccentric blocks is located on both sides of the output shaft 8. At this time, the center of mass of the two eccentric blocks after superposition is the smallest distance from the axis of the output shaft 8, and the amplitude generated at the same speed is also the smallest. When the two eccentric blocks overlap each other, the center of mass of the two eccentric blocks is located on the same side of the output shaft 8. At this time, the center of mass of the two eccentric blocks after superposition is the largest distance from the axis of the output shaft 8, and the amplitude generated at the same speed is also the largest. Since the output shaft 8 is provided with an external spline portion 12, workers can adjust the angle of the first eccentric block 9 and the second eccentric block 10 by one grid, and fix the first eccentric block 9 and the second eccentric block 10 by the external spline portion 12 to prevent the angle between the two eccentric blocks from changing during rotation. After the first eccentric block 9 and the second eccentric block 10 are adjusted, tighten the nut 15 and insert the pin to prevent the nut 15 from loosening during the rotation of the motor.

[0028] Specifically, a mounting groove 11 is provided in the middle of the second eccentric block 10, and the first eccentric block 9 is mounted in the mounting groove 11, so that the first eccentric block 9 is conveniently nested in the second eccentric block 10, so that the center of mass offset distance after superposition is maximized.

[0029] Preferably, the center of mass of the first eccentric block 9 and the center of mass of the second eccentric block 10 are both on the central plane of the mounting groove 11, so that after the centers of mass of the two eccentric blocks are superimposed, they are both located on the central plane of the mounting groove 11, avoiding the center of mass being offset to other planes, which affects the vibration superposition and offset effect of the two vibration motors 5.

[0030] Specifically, an external spline portion 12 and a threaded portion 13 are provided on the output shaft 8. The first eccentric block 9 and the second eccentric block 10 are connected to the external spline portion 12 on one side through a connecting ring 14. The threaded portion 13 clamps the second eccentric block 10 through a nut 15. Two vibration motors 5 are installed on the cross frame 4. Each vibration motor 5 is provided with two groups of eccentric blocks. Therefore, there are more eccentric blocks on the equipment. By setting the external spline portion 12, workers can adjust the angle between the eccentric blocks one by one, and change the stepless adjustment into stepped adjustment, so that multiple groups of eccentric blocks match each other and make the screen box 3 vibrate in a straight line.

[0031] In a preferred embodiment, an internal spline matching the external spline portion 12 is provided on the inner wall of the connecting ring 14. After the connecting ring 14 is sleeved on the connecting ring 14, the angle of the connecting ring 14 can be fixed by the external spline portion 12 to prevent the angle between the two eccentric blocks from changing during rotation.

[0032] In a preferred embodiment, a slot is provided on the nut 15 and a radial through hole is provided on the threaded portion 13. After the nut 15 is tightened, the nut 15 is connected to the radial through hole through a pin shaft. The pin shaft adopts an existing commercially available slotted pin shaft, which can clamp the slot on the nut 15 to prevent loosening during rotation and improve reliability.

[0033] Specifically, a sieve plate is provided in the screen box 3, and the sieve plate is obliquely installed at the lower part of the screen box 3. The moisture in the mud is separated by the vibrating sieve plate. The upper end surface of the cross frame 4 is parallel to the sieve plate. The vibration motor 5 is parallelly installed on the upper end surface of the cross frame 4. The linear vibration generated by the two vibration motors 5 is transmitted to the sieve plate through the screen box 3, so that the sieve plate vibrates, and the mud is quickly dehydrated.

[0034] Of course, the present application may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present application.

Claims

1. A vibration dehydration device, characterized in that: include: A base (1), wherein the base (1) is mounted on the ground via supporting feet (2); A screen box (3), wherein the lower parts of both sides of the screen box (3) are provided with springs (6) connected to the upper part of the base (1), and the upper part of the screen box (3) is provided with a cross frame (4), the cross frame (4) spans the screen box (3), and the two ends of the cross frame (4) are fixed on the screen box (3); A vibration motor (5), wherein there are two vibration motors (5), and the two vibration motors (5) are symmetrically mounted on the horizontal frame (4); The vibration motor (5) comprises a main body (7), an output shaft (8), a first eccentric block (9), and a second eccentric block (10); the output shaft (8) is installed in the main body (7), and two ends of the output shaft (8) extend symmetrically from both sides of the main body (7); the first eccentric block (9) is nested inside the second eccentric block (10), and the first eccentric block (9) and the second eccentric block (10) are installed on both sides of the output shaft (8).

2. A vibration dehydration device according to claim 1, characterized in that: A mounting groove (11) is provided in the middle of the second eccentric block (10), and the first eccentric block (9) is mounted in the mounting groove (11).

3. A vibration dehydration device according to claim 2, characterized in that: The center of mass of the first eccentric mass (9) and the center of mass of the second eccentric mass (10) are both on the central plane of the mounting groove (11).

4. A vibration dehydration device according to claim 1, characterized in that: The output shaft (8) is provided with an external spline portion (12) and a threaded portion (13); one side of the first eccentric block (9) and the second eccentric block (10) is connected to the external spline portion (12) via a connecting ring (14); and the threaded portion (13) clamps the second eccentric block (10) via a nut (15).

5. A vibration dehydration device according to claim 4, characterized in that: An inner spline matching the outer spline portion (12) is provided on the inner wall of the connecting ring (14).

6. A vibration dehydration device according to claim 4, characterized in that: The nut (15) is provided with a slot, and the threaded portion (13) is provided with a radial through hole. After the nut (15) is tightened, the nut (15) is connected to the radial through hole via a pin shaft.

7. A vibration dehydration device according to claim 1, characterized in that: The screen box (3) is provided with a screen plate, which is obliquely installed at the lower part of the screen box (3). The upper end surface of the cross frame (4) is parallel to the screen plate, and the vibration motor (5) is installed parallel to the upper end surface of the cross frame (4).

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