Vibrating screen with low noise

Abstract

The utility model discloses a low-noise vibrating screen which comprises a vibrating screen body and a fixing block, a plurality of movable grooves are formed in the upper end face of the fixing block, a cavity is formed in the fixing block, a driving motor is arranged in the cavity, a driving gear is installed on an output shaft of the driving motor, transverse screw rods extending into the cavity are arranged in the movable grooves, and the transverse screw rods are arranged in the fixing block. A transverse screw is installed on the vibrating screen body and connected with a driving gear through a rotating mechanism, a connecting sleeve is installed at the bottom of the vibrating screen body, the driving gear is connected with the connecting sleeve through a connecting mechanism, the transverse screw is sleeved with a movable frame in a threaded mode, and a universal wheel assembly is arranged on the movable frame through a damping shock absorber. According to the vibrating screen, the fixing block, the driving motor, the vertical screw rod, the connecting sleeve, the transverse screw rod, the movable frame, the damping shock absorber, the universal wheel assembly and the like are arranged and used in cooperation, so that the shock absorption operation can be achieved when the vibrating screen body works, and the height of the vibrating screen body can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a vibrating screen with low noise. Background Art

[0002] Vibrating screen is a device used to separate particles or materials of different sizes. It classifies and screens materials according to particle size through the principle of vibration. It is usually composed of screen, vibrator, support structure and drive device. The material is vibrated on the screen, and smaller particles fall through the screen, while larger particles remain on the screen. Vibrating screen is widely used in mining, chemical, construction, food and other industries to screen ore, coal, sand, fertilizer, grain and other materials. It can improve the purity and quality of materials, improve production efficiency and economic benefits.

[0003] The vibrating screen will vibrate when it is working. This is the key mechanism for it to achieve the screening function. Through continuous vibration, the material is caused to jump and roll on the screen surface, so that materials of different particle sizes can be separated and graded. This vibration will not only affect the stability of the components on the equipment, but also generate certain noise that affects the working environment. In order to deal with the above problems, a low-noise vibrating screen is proposed here. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a vibration screen with low noise.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A low-noise vibration screen comprises a vibration screen body and a fixed block, wherein the upper end surface of the fixed block is provided with a plurality of movable grooves, a cavity is provided inside the fixed block, a driving motor is provided inside the cavity, a driving gear is installed on the output shaft of the driving motor, a transverse screw extending into the cavity is provided in the movable groove, the transverse screw is connected to the driving gear through a rotating mechanism, a connecting sleeve is installed at the bottom of the vibration screen body, the driving gear is connected to the connecting sleeve through a connecting mechanism, a movable frame is threadedly sleeved on the transverse screw, and a universal wheel assembly is provided on the movable frame through a damping shock absorber.

[0007] Preferably, the rotating mechanism comprises a transmission gear arranged on the transverse screw, and the driving gear is vertically meshed with the transmission gear.

[0008] Preferably, the connecting mechanism comprises a vertical screw rod mounted on the fixing block and connected to the driving gear, and the vertical screw rod is threadedly connected to the connecting sleeve.

[0009] Preferably, a transverse limiting rod is provided in the movable groove, the transverse limiting rod is parallel to the transverse screw rod, and the transverse limiting rod slides through the movable frame.

[0010] Preferably, a vertical limiting rod is provided on the fixing block, the vertical limiting rod is parallel to the vertical screw rod, and a connecting groove cooperating with the vertical limiting rod is provided on the connecting sleeve.

[0011] Preferably, the bottom wall of the fixing block is provided with a heat dissipation port connected to the cavity, and a heat dissipation net is installed on the inner thread of the heat dissipation port.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting a fixed block, a driving motor, a vertical screw, a connecting sleeve, a horizontal screw, a movable frame, a damping shock absorber and a universal wheel assembly, the above components can be used together to realize the shock absorption operation of the vibrating screen body when it is working, and the height adjustment of the vibrating screen body can be realized.

[0014] 2. By setting the driving gear and the transmission gear, the spacing of multiple universal wheel assemblies can be adjusted synchronously when the height of the vibrating screen body changes, so as to adapt to the height change of the vibrating screen body and provide corresponding support stability synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a low-noise vibrating screen proposed by the utility model;

[0016] Figure 2 It is a schematic diagram of the vertical section structure of the fixed block and other components;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at B.

[0019] In the figure: 1 vibrating screen body, 2 fixed block, 3 movable frame, 4 universal wheel assembly, 5 damping shock absorber, 6 vertical screw, 7 connecting sleeve, 8 movable groove, 9 cavity, 10 driving motor, 11 driving gear, 12 horizontal screw, 13 transmission gear, 14 horizontal limit rod, 15 vertical limit rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4A low-noise vibration screen comprises a vibration screen body 1 and a fixed block 2. The upper end surface of the fixed block 2 is provided with a plurality of movable grooves 8. A cavity 9 is provided inside the fixed block 2. A driving motor 10 is provided in the cavity 9. A driving gear 11 is installed on the output shaft of the driving motor 10. A horizontal screw 12 extending into the cavity 9 is provided in the movable groove 8. The horizontal screw 12 is connected to the driving gear 11 through a rotating mechanism. A connecting sleeve 7 is installed at the bottom of the vibration screen body 1. The driving gear 11 is connected to the connecting sleeve 7 through a connecting mechanism. A movable frame 3 is threadedly sleeved on the horizontal screw 12.

[0022] A universal wheel assembly 4 is provided on the movable frame 3 through a damping shock absorber 5. The universal wheel assembly 4 consists of a bogie, a wheel and a locking assembly. The wheel can realize a direction change operation by relying on the bogie, and the wheel can be locked with the help of the locking assembly. As shown in the figure, the wheel is lower than the fixed block 2, and the fixed block 2 does not contact the ground.

[0023] The rotating mechanism includes a transmission gear 13 arranged on the horizontal screw 12, and the driving gear 11 is vertically meshed with the transmission gear 13. As shown in the figure, the driving gear 11 and the transmission gear 13 are both bevel gears, which cooperate with each other to ultimately realize the power transmission of the drive motor 10.

[0024] The connecting mechanism includes a vertical screw rod 6 installed on the fixed block 2 and connected to the driving gear 11. The vertical screw rod 6 is threadedly connected to the connecting sleeve 7. A horizontal limit rod 14 is provided in the movable groove 8. The horizontal limit rod 14 is parallel to the horizontal screw rod 12. The horizontal limit rod 14 slides through the movable frame 3. A vertical limit rod 15 is provided on the fixed block 2. The vertical limit rod 15 is parallel to the vertical screw rod 6. A connecting groove that cooperates with the vertical limit rod 15 is provided on the connecting sleeve 7. The above-mentioned horizontal limit rod 14 and vertical limit rod 15 both play a limiting role, thereby preventing the movable frame 3 from rotating with the horizontal screw rod 12, and preventing the connecting sleeve 7 from rotating with the vertical screw rod 6.

[0025] The bottom wall of the fixing block 2 is provided with a heat dissipation port connected to the cavity 9, and a heat dissipation net is installed on the inner thread of the heat dissipation port. The heat dissipation port and the heat dissipation net are used to facilitate heat dissipation of the drive motor 10 in the cavity 9.

[0026] When the utility model is in use, the vibrating screen body 1 is supported and moved by a plurality of universal wheel assemblies 4. When it is not necessary to move, the universal wheel assembly 4 can be locked by the locking assembly. The vibration generated during operation can be damped by the damping shock absorber 5, thereby reducing the noise generated when the equipment is working.

[0027] In this solution, the height of the vibration screen body 1 can be adjusted. The driving motor 10 can be started to drive the driving gear 11 and the vertical screw 6 to rotate. When the vertical screw 6 rotates, the connecting sleeve 7 moves on the vertical screw 6 and drives the vibration screen body 1 to rise. At the same time, the rotation of the driving gear 11 can also drive the transmission gear 13 to rotate, and the rotation of the transmission gear 13 can drive the horizontal screw 12 to rotate. When the horizontal screw 12 rotates, the movable frame 3 threadedly connected thereto drives the universal wheel assembly 4 to move, so multiple universal wheel assemblies 4 move and expand to provide more stable support for the vibration screen body 1.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-noise vibrating screen, comprising a vibrating screen body (1) and a fixing block (2), characterized in that: The upper end surface of the fixed block (2) is provided with a plurality of movable grooves (8), a cavity (9) is provided inside the fixed block (2), a driving motor (10) is provided inside the cavity (9), a driving gear (11) is installed on the output shaft of the driving motor (10), a transverse screw (12) extending into the cavity (9) is provided inside the movable groove (8), the transverse screw (12) is connected to the driving gear (11) through a rotating mechanism, a connecting sleeve (7) is installed at the bottom of the vibration screen body (1), the driving gear (11) is connected to the connecting sleeve (7) through a connecting mechanism, a movable frame (3) is threadedly sleeved on the transverse screw (12), and a universal wheel assembly (4) is provided on the movable frame (3) through a damping shock absorber (5).

2. A low-noise vibrating screen according to claim 1, characterized in that: The rotating mechanism comprises a transmission gear (13) arranged on a transverse screw (12), and the driving gear (11) is vertically meshed with the transmission gear (13).

3. A low-noise vibrating screen according to claim 2, characterized in that: The connection mechanism comprises a vertical screw rod (6) mounted on a fixed block (2) and connected to a driving gear (11); the vertical screw rod (6) is threadedly connected to a connection sleeve (7).

4. A low-noise vibrating screen according to claim 3, characterized in that: A transverse limiting rod (14) is arranged in the movable groove (8), the transverse limiting rod (14) is parallel to the transverse screw rod (12), and the transverse limiting rod (14) slides through the movable frame (3).

5. A low-noise vibrating screen according to claim 4, characterized in that: The fixing block (2) is provided with a vertical limiting rod (15), the vertical limiting rod (15) is parallel to the vertical screw rod (6), and the connecting sleeve (7) is provided with a connecting groove matched with the vertical limiting rod (15).

6. A low-noise vibrating screen according to claim 5, characterized in that: The bottom wall of the fixing block (2) is provided with a heat dissipation port which is in communication with the cavity (9), and a heat dissipation net is installed on the inner thread of the heat dissipation port.

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