Synchronous device for forced synchronous vibrating screen without vibration

Abstract

A synchronization device for a forced synchronous vibrating screen without vibration participation belongs to the field of vibrating screening machinery and eliminates the disadvantages of vibration participation of the synchronization device. It includes a motor transmission device, a synchronization device and an exciter, the synchronization device is installed on a base, and the exciter is installed on a screen frame. The synchronization device is a synchronous gearbox, which is composed of 2 to 3 gearboxes connected together. A driving shaft that passes through the box is arranged in the gearbox, and a bevel gear is arranged on the driving shaft. The input end of the driving shaft is connected to the motor transmission device, and the output end is connected to the exciter through a universal transmission shaft; the gearbox is also equipped with 1 to 2 cantilever driven shafts perpendicular to the driving shaft, and the bevel gear on the driven shaft is meshed with the bevel gear on the driving shaft. The cantilever driven shafts on two adjacent gearboxes are connected together through a synchronous transmission shaft. It has the characteristics of convenient adjustment and maintenance, high reliability of the synchronization device and long service life. It can be applied to circular vibrating screens, linear vibrating screens and large elliptical vibrating screens.

Description

Technical Field

[0001] The utility model belongs to the field of vibrating screening machinery, and mainly relates to a synchronous device for a forced synchronous vibrating screen without vibration. Background Art

[0002] The existing large-scale vibrating screen (screen surface width ≥ 3m) generally has 2 or 3 groups of exciters installed in parallel in the length direction of the screen frame, and each group of exciters is connected in series in the width direction of the screen frame to form a combined force to achieve the required exciting force. In order to enable each parallel independent exciter group to rotate synchronously during operation, each group of exciters is connected by a synchronous toothed belt device or a gear transmission device, which participates in the synchronous operation vibration together with the exciter. The disadvantages of this prior art are: since the synchronization device participates in the vibration, the vibration load of the screen machine is increased, and the vibration will also increase the failure rate of the synchronization device, shortening the service life of the transmission device, and maintenance and adjustment are also more troublesome. It is also not suitable for connecting transmissions with large spans between parallel exciter groups. Summary of the invention

[0003] The utility model aims to provide a synchronization device for a forced synchronous vibrating screen without vibration participation, which can keep 2 to 3 vibrators installed in parallel in the length direction of the vibrating screen frame to keep synchronous operation in the same or different directions without vibration participation.

[0004] The utility model is realized by the following technical scheme, including a motor transmission device, a synchronization device and an exciter, the synchronization device is fixedly installed on a base, and the exciter is installed on a vibrating screen frame, and is characterized in that: the synchronization device is a synchronous gear box, which is composed of 2 to 3 gear boxes connected together; a driving shaft penetrating the box body is arranged in the gear box, an active bevel gear is arranged on the driving shaft, the input end of the driving shaft is connected to the motor transmission device, and the output end is connected to the exciter through a universal transmission shaft; 1 to 2 cantilever driven shafts perpendicular to the driving shaft are also arranged in the gear box, and the driven bevel gear on the driven shaft is meshed with the active bevel gear on the driving shaft; the cantilever driven shafts on two adjacent gear boxes are connected together through a synchronous transmission shaft.

[0005] The number of teeth of the driving bevel gear on the driving shaft of each gearbox is equal; the number of teeth of the driven bevel gear on the driven shaft of each gearbox is equal. The driving bevel gears on the driving shaft in each gearbox are respectively arranged on the same side or different sides of the gearbox, that is, at the input end or output end of the driving shaft, or one is arranged at the input end of the driving shaft and the other is arranged at the output end of the driving shaft.

[0006] According to the vibration track of the vibrating screen, determine the position of the active bevel gear on the active shaft in the gear box. When used for a linear vibrating screen, two vibrators are set in parallel in the length direction of the screen frame, corresponding to the two connected gear boxes, and the active bevel gears on the active shafts in the two gear boxes are located on the same side of the gear box; when used for a circular vibrating screen, 2 to 3 vibrators are set in parallel in the length direction of the screen frame, corresponding to the 2 to 3 connected gear boxes, and the two active bevel gears on the active shafts in the two adjacent gear boxes are located on different sides of the gear box; when used for a three-axis elliptical vibrating screen, 3 vibrators are set in parallel in the length direction of the screen frame, corresponding to the 3 connected gear boxes, and the active bevel gears on the active shafts in the 3 gear boxes are located on the same side of the gear box; to ensure the smooth and synchronous operation of the vibrating screen.

[0007] The beneficial effect of the utility model is that when the vibrating screen is working, its synchronization device does not participate in the vibration, and can accurately ensure the synchronous and stable operation of the parallel installed vibrators, and has the characteristics of convenient adjustment and maintenance, high reliability of the synchronization device and long service life. It can also realize the connection transmission of two parallel vibrators with a long span, and can also realize the connection transmission of multiple parallel vibrators. It can be applied to various large circular vibrating screens, large linear vibrating screens and large elliptical vibrating screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model, which is a schematic diagram for a circular vibrating screen;

[0009] Figure 2 It is a schematic diagram for a three-axis circular vibrating screen;

[0010] Figure 3 It is a schematic diagram for a three-axis elliptical vibrating screen.

[0011] In the figure, 1 is the vibrating screen frame, 2 is the vibrator, 3 is the universal joint transmission shaft, 4 is the gear box, 5 is the coupling, 6 is the motor transmission device, 7 is the driving shaft, 8 is the driven shaft, 9 is the synchronous transmission shaft, 10 is the driven bevel gear, and 11 is the driving bevel gear. DETAILED DESCRIPTION

[0012] The specific implementation of the utility model is described below in conjunction with the accompanying drawings:

[0013] It includes a motor transmission device 6, a synchronization device and an exciter 2. The synchronization device is installed and fixed on the base, and the exciter 2 is installed on the vibrating screen frame 1. The synchronization device is a synchronous gear box, which is composed of 2 to 3 gear boxes 4 connected together; a driving shaft 7 penetrating the box body is arranged in the gear box 4, and a driving bevel gear 11 is installed on the driving shaft 7. The input end of the driving shaft 7 is connected to the motor transmission device 6, and the output end is connected to the exciter 2 through the universal transmission shaft 3; the gear box 4 is also equipped with 1 to 2 cantilever driven shafts 8 perpendicular to the driving shaft 7, and the driven bevel gear 10 on the driven shaft 8 is meshed with the driving bevel gear 11 on the driving shaft 7; the cantilever driven shafts 8 on two adjacent gear boxes 4 are connected together through a synchronous transmission shaft 9.

[0014] The number of teeth of the driving bevel gear 11 on each gearbox driving shaft 7 is equal; the number of teeth of the driven bevel gear 10 on each gearbox driven shaft 8 is equal. The driving bevel gears 11 on the driving shaft 7 in each gearbox 4 are respectively arranged on the same side or different sides of the gearbox 4, that is, at the input end or output end of the driving shaft 7, or one is arranged at the input end of the driving shaft 7 and the other is arranged at the output end of the driving shaft 7.

[0015] According to the vibration trajectory of the vibrating screen, the position of the active bevel gear 11 on the active shaft 7 in the gear box 4 is determined. The specific embodiments are as follows: 1. When used for a linear vibrating screen, two vibrators 2 are arranged in parallel in the length direction of the screen frame, and the corresponding two gear boxes 4 are connected, and the active bevel gears 11 on the active shaft 7 in the two gear boxes 4 are located on the same side of the gear box 4; 2. When used for a circular vibrating screen, 2 to 3 vibrators 2 are arranged in parallel in the length direction of the screen frame, and the corresponding 2 to 3 gear boxes 4 are connected, and the two active bevel gears 11 on the active shaft 7 in the two adjacent gear boxes 4 are located on different sides of the gear box 4; 3. When used for a three-axis elliptical vibrating screen, three vibrators 2 are arranged in parallel in the length direction of the screen frame, and the corresponding three gear boxes 4 are connected, and the active bevel gears 11 on the active shaft 7 in the three gear boxes 4 are located on the same side of the gear box 4; to ensure the stable synchronous operation of the vibrating screen. The vibrator 2 described can be a vibrator group.

[0016] In the vibrating screen with a circular vibration trajectory of Example 2, when two exciters 2 are arranged side by side in the length direction of the screen frame, the output ends of the driving shafts 7 of the two gear boxes 4 are connected to each other through the universal joint transmission shaft 3. The two driving bevel gears 11 on the driving shafts 7 in the two gear boxes 4 are located on different sides of the gear boxes 4, that is, one is arranged at the input end of the driving shaft 7 and the other is arranged at the output end of the driving shaft 7, so that the two exciters rotate in the same direction.

Claims

1. A synchronization device for a forced synchronous vibrating screen without vibration, comprising a motor transmission device (6), a synchronization device and a vibration exciter (2), wherein the synchronization device is mounted and fixed on a base, and the vibration exciter (2) is mounted on a vibrating screen frame (1), wherein: The synchronizing device is a synchronous gearbox, which is composed of 2 to 3 gearboxes (4) connected together; a driving shaft (7) penetrating the gearbox (4) is arranged inside the gearbox (4), a driving bevel gear (11) is arranged on the driving shaft (7), the input end of the driving shaft (7) is connected to the motor transmission device (6), and the output end is connected to the exciter (2) through the universal transmission shaft (3); the gearbox (4) is also equipped with 1 to 2 cantilever driven shafts (8) perpendicular to the driving shaft (7), and the driven bevel gear (10) on the driven shaft (8) is meshed with the driving bevel gear (11) on the driving shaft (7); the cantilever driven shafts (8) on two adjacent gearboxes (4) are connected together through a synchronous transmission shaft (9).

2. The synchronization device for the forced synchronous vibrating screen without vibration according to claim 1 is characterized in that: The number of teeth of the driving bevel gear (11) on the driving shaft (7) of each gear box is equal; the number of teeth of the driven bevel gear (10) on the driven shaft (8) of each gear box is equal; the driving bevel gears (11) on the driving shaft (7) in each gear box (4) are respectively arranged on the same side or different sides of the gear box (4), that is, located at the input end or output end of the driving shaft (7), or one is arranged at the input end of the driving shaft (7) and the other is arranged at the output end of the driving shaft (7).

3. The synchronization device for the forced synchronous vibrating screen without vibration according to claim 1 or 2, characterized in that: The position of the driving bevel gear (11) on the driving shaft (7) in the gear box (4) is determined according to the vibration trajectory of the vibrating screen; when used in a linear vibrating screen, two vibration exciters (2) are arranged in parallel in the length direction of the screen frame, corresponding to the two connected gear boxes (4), and the driving bevel gears (11) on the driving shafts (7) in the two gear boxes (4) are located on the same side of the gear boxes (4); when used in a circular vibrating screen, two to three vibration exciters (2) are arranged in parallel in the length direction of the screen frame, corresponding to the two to three connected gear boxes (4), and the two driving bevel gears (11) on the driving shafts (7) in two adjacent gear boxes (4) are located on different sides of the gear boxes (4); when used in a three-axis elliptical vibrating screen, three vibration exciters (2) are arranged in parallel in the length direction of the screen frame, corresponding to the three connected gear boxes (4), and the driving bevel gears (11) on the driving shafts (7) in the three gear boxes (4) are located on the same side of the gear boxes (4).

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