Structure-improved vibrating screen main shaft synchronizing device

Abstract

The utility model discloses a vibrating screen spindle synchronizer with an improved structure, which comprises a vibrating screen, a vibrator connecting component arranged on the side wall of the vibrating screen, a fixing frame arranged on the outer side of the vibrator connecting component, a first motor and a second motor arranged at the front end and the rear end of the fixing frame, and a sealing box arranged between the first motor and the second motor. A driving gear and a driven gear which are in meshed transmission connection are arranged in the sealing box, and the two sides of the driving gear are connected with the vibrator connecting assembly, the first motor and the second motor respectively. The sealing box is arranged between the first motor and the second motor, the driving gear and the driven gear which are meshed with each other are arranged in the sealing box, and an existing synchronous belt mode is replaced with a gear transmission mode, so that the synchronous transmission structure is more stable; by adopting a gear transmission mode, the installation error range does not need to be very accurate when the eccentric shaft is installed, and assembling is convenient; the number of the slave gears can be adjusted according to requirements, and different vibration modes are achieved. The device is novel in structure and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a main shaft synchronizing device of a vibrating screen with an improved structure. Background Art

[0002] Vibrating screens are generally composed of vibrators, screen boxes, vibration isolation devices, transmission devices and other parts. They are suitable for screening and grading loose materials in industries such as coal, metallurgy, mineral processing, electricity, water conservancy, building materials, light industry and chemical industry. The rectangular screen surface (screen mesh) of the vibrating screen is installed on the screen box. Under the action of the vibrator, the screen box and the screen surface produce circular, elliptical or linear trajectory vibrations. Due to the vibration of the screen surface, the material layer on the screen surface is loosened and thrown away from the screen surface, so that the fine particles can pass through the material layer and fall through the screen holes. The particles stuck in the screen holes are vibrated out, not only producing a screening effect, but also making the material move forward. In the existing vibrating screen equipment, the motor is one of the most important parts of the vibrating screen. It is a device used to drive the vibration of the vibrating screen or adjust the size of the exciting force of the vibrating screen. The vibrating screen equipped with dual motors generally connects the motor to the two eccentric shafts inside the vibrating screen, and installs a synchronous wheel and a synchronous belt on the side of the eccentric shaft where the motor is not installed to ensure that the two eccentric shafts have the same speed when working, as shown in the attached manual. Figure 1 And the instruction manual Figure 2 . However, the synchronous belt itself is elastic. After a period of use, the synchronous belt will become loose, which will cause the rotation speeds of the two eccentric shafts to be out of sync when the vibrating screen is running. This will not only cause vibration deviation during the operation of the vibrating screen, affecting the screening effect, but also cause the synchronous belt to slip and fall in severe cases, thereby affecting the stable operation of the vibrating screen. In view of this, the inventor proposes a structurally improved vibrating screen main shaft synchronization device, which improves the synchronous belt structure to a gear transmission structure, which can effectively increase the service life of the vibrating screen and reduce the failure rate.

[0003] In order to prevent the synchronous belt from slipping and falling between the two driving motors and ensure the stable operation of the vibrating screen, a Chinese patent (authorization announcement number: CN219309333U) discloses a dual-motor adjustment structure of a vibrating screen. The utility model includes a vibrating screen, and a dual-motor adjustment mechanism is arranged on the side wall of the vibrating screen. The dual-motor adjustment mechanism includes two synchronous wheels arranged in parallel, a synchronous belt for connecting the two synchronous wheels, two driving motors for driving the two synchronous wheels to rotate, and a pressure roller structure arranged between the two synchronous wheels for tensioning the synchronous belt. The synchronous wheels and the driving motor are respectively arranged on the two outer side walls of the vibrating screen. The pressure roller structure includes two fixed plates for connecting the side walls of the vibrating screen, a connecting plate connected between the two fixed plates, a pressure roller slidably connected to the center of the connecting plate, and an adjusting rod vertically arranged between the two fixed plates for driving the pressure roller to lift and adjust; the adjusting rod is parallel to the connecting plate, and the pressure roller passes through the connecting plate and is connected to the adjusting rod, so that when the adjusting rod rotates, the pressure roller can be driven to slide up and down along the connecting plate and the adjusting rod, and the synchronous belt is pressed between the two synchronous wheels by the pressure roller. The utility model uses a clamping wheel adjustment mechanism to enable the synchronous belt to be stably clamped in the gear teeth of the driving wheel and to enable the two synchronous wheels to rotate synchronously, thereby effectively preventing the synchronous wheels from vibrating and deviating during operation.

[0004] This solution still has some shortcomings in application. Since the vibrating screen usually runs for a long time or runs at a high frequency with intermittent use, the synchronous belt can easily be stretched due to heat caused by long-term operation, or it may break due to frequent switching in hot and cold modes. All of the above will result in a short service life of the synchronous belt. At the same time, the synchronous belt connection method can only achieve unidirectional rotation, which makes the vibration mode of the material single and also affects the screening effect. Therefore, it is necessary to improve the structure of the vibrating screen main shaft synchronization device so that it can achieve long-term operation, improve the working efficiency of the vibrating screen, and improve practicality. Utility Model Content

[0005] The utility model discloses a structurally improved vibration screen main shaft synchronization device, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the prior art.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A structurally improved vibration screen main shaft synchronization device comprises a vibration screen, wherein two vibrator connecting assemblies are arranged on one side wall of the vibration screen, a fixing frame is arranged on the outside of the vibrator connecting assembly, a first motor and a second motor are arranged on the front and rear ends of the fixing frame respectively, a sealing box is arranged between the first motor and the second motor, a main gear and a slave gear are built into the sealing box, the main gear has two front main gears and a rear main gear respectively arranged on the front and rear ends of the sealing box, the front main gear and the rear main gear are respectively connected to the two vibrator connecting assemblies on the inner side, and are connected to the first motor and the second motor through a chain on the outer side, and a plurality of slave gears are in mutually meshing transmission connection.

[0008] Furthermore, the diameter of the master gear is consistent with the diameter of the slave gear and they are in a mutually meshing structure.

[0009] Furthermore, the two vibrator connecting assemblies are rotated respectively through the front main gear and the rear main gear.

[0010] Furthermore, the two vibrator connecting components achieve synchronous rotation through the main gear and the slave gear.

[0011] Furthermore, the slave gears include three front gears, middle gears and rear gears, and the front main gear and the rear main gear rotate in the same direction.

[0012] Furthermore, the slave gears have four gears, which include a first gear, a second gear, a third gear and a fourth gear from front to back, and the front master gear and the rear master gear rotate in opposite directions.

[0013] It can be seen from the above description of the utility model that, compared with the prior art, the advantages of the utility model are:

[0014] The utility model firstly sets a sealing box between the first motor and the second motor, and the sealing box has a main gear and a slave gear meshing with each other, and replaces the existing synchronous belt method by the gear transmission method, so that the synchronous transmission structure is more stable, avoiding the problem that the synchronous belt is easy to heat up and become loose and easy to break after long-term use, and prolonging the service life of the vibrating screen; then, when the gear transmission method is used to install the eccentric shaft, the position installation error range between the eccentric shafts does not need to be very precise, while the synchronous belt method requires the position between the eccentric shafts to be very precise, otherwise the synchronous belt is prone to slippage, so the gear transmission method can effectively reduce the difficulty of assembly and reduce the failure rate; finally, the gear transmission method is used, and the number and type of slave gears can be installed according to actual needs, which are divided into odd numbers and even numbers. When the even number is used, jumping linear vibration screening can be realized, and the screening is better. The utility model has a novel structure and a clever design, can prolong the service life of the vibrating screen and improve the screening efficiency, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top view structure of the existing vibrating screen.

[0016] Figure 2 It is a side view structural schematic diagram of an existing vibrating screen.

[0017] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0018] Figure 4 This is a side view of the structure of the utility model Figure 1 (Three from the gears).

[0019] Figure 5 This is a side view of the structure of the utility model Figure 2 (four slave gears). DETAILED DESCRIPTION

[0020] The specific implementation of the present utility model will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 5 As shown, a structurally improved vibration screen main shaft synchronization device comprises a vibration screen 1, two vibrator connecting assemblies 2 are arranged on one side wall of the vibration screen 1, a fixing frame 3 is arranged outside the vibrator connecting assembly 2, a first motor 4 and a second motor 5 are arranged at the front and rear ends of the fixing frame 3 respectively, a sealing box 6 is arranged between the first motor 4 and the second motor 5, a main gear 7 and a slave gear 8 are built in the sealing box 6, the main gear 7 has two front main gears 71 and a rear main gear 72 which are respectively arranged at the front and rear ends of the sealing box 6, the front main gear 71 and the rear main gear 72 are respectively connected to the two vibrator connecting assemblies 2 on the inner side, and are connected to the first motor 4 and the second motor 5 on the outer side through a chain, the slave gear 8 has a plurality of mutually meshing transmission connections, the diameter of the main gear 7 is consistent with the diameter of the slave gear 8 and is in a mutually meshing structure, the two vibrator connecting assemblies 2 are respectively rotated by the front main gear 71 and the rear main gear 72, and the two vibrator connecting assemblies 2 are synchronously rotated by the main gear 7 and the slave gear 8. Transmission is achieved by setting a plurality of slave gears 8 between the front main gear 71 and the rear main gear 72. Compared with the synchronous belt connection method, the structure is more stable and the synchronous belt will not slip, thereby improving the operating stability of the equipment.

[0022] like Figures 1 to 5As shown, the slave gear 8 has three gears including a front gear 81, a middle gear 82 and a rear gear 83, and the front main gear 71 and the rear main gear 72 rotate in the same direction. The slave gear 8 has four gears including a first gear 84, a second gear 85, a third gear 86 and a fourth gear 87 from front to back, and the front main gear 71 and the rear main gear 72 rotate in opposite directions. The slave gear 8 can be set to an odd or even number according to production requirements. When the slave gear 8 is an odd number, the front main gear 71 and the rear main gear 72 rotate in the same direction. When the slave gear 8 is an even number, the front main gear 71 and the rear main gear 72 rotate in opposite directions. When rotating in the opposite direction, the material on the vibrating screen 1 moves in a jumping linear motion, which can achieve better material screening.

[0023] [Example 1]

[0024] Three slave gears 8 are provided between the front main gear 71 and the rear main gear 72, namely the front gear 81, the middle gear 82 and the rear gear 83. When the first motor 4 and the second motor 5 are started, the front main gear 71 and the rear main gear 72 drive the vibrator connecting assembly 2 to rotate clockwise. At this time, the front gear 81, the middle gear 82 and the rear gear 83 rotate counterclockwise, clockwise and counterclockwise respectively, and the front main gear 71 and the rear main gear 72 rotate synchronously in the same direction to realize linear vibration screening.

[0025] [Example 2]

[0026] Four slave gears 8 are provided between the front main gear 71 and the rear main gear 72, namely the first gear 84, the second gear 85, the third gear 86 and the fourth gear 87. At this time, the first motor 4 and the second motor 5 are started, and the front main gear 71 drives one of the vibrator connecting components 2 to rotate clockwise, and the rear main gear 72 drives the other vibrator connecting component 2 to rotate counterclockwise. At this time, the first gear 84, the second gear 85, the third gear 86 and the fourth gear 87 rotate counterclockwise, clockwise, counterclockwise and clockwise respectively, and the front main gear 71 and the rear main gear 72 rotate synchronously in opposite directions to realize jumping linear vibration screening.

[0027] It can be seen from the above description of the utility model that, compared with the prior art, the advantages of the utility model are:

[0028] The utility model firstly sets a sealing box between the first motor and the second motor, and the sealing box has a main gear and a slave gear meshing with each other, and replaces the existing synchronous belt method by the gear transmission method, so that the synchronous transmission structure is more stable, avoiding the problem that the synchronous belt is easy to heat up and become loose and easy to break after long-term use, and prolonging the service life of the vibrating screen; then, when the gear transmission method is used to install the eccentric shaft, the position installation error range between the eccentric shafts does not need to be very precise, while the synchronous belt method requires the position between the eccentric shafts to be very precise, otherwise the synchronous belt is prone to slippage, so the gear transmission method can effectively reduce the difficulty of assembly and reduce the failure rate; finally, the gear transmission method is used, and the number and type of slave gears can be installed according to actual needs, which are divided into odd numbers and even numbers. When the even number is used, jumping linear vibration screening can be realized, and the screening is better. The utility model has a novel structure and a clever design, can prolong the service life of the vibrating screen and improve the screening efficiency, and is suitable for promotion.

[0029] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial improvement of the utility model using this concept should be regarded as an infringement of the protection scope of the utility model.

Claims

1. A structurally improved vibration screen main shaft synchronization device, characterized in that: It comprises a vibrating screen, wherein two vibrator connecting assemblies are arranged on a side wall of one side of the vibrating screen, a fixing frame is arranged on the outside of the vibrator connecting assembly, a first motor and a second motor are arranged on the front and rear ends of the fixing frame respectively, a sealing box is arranged between the first motor and the second motor, a main gear and a slave gear are built in the sealing box, the main gear has two front main gears and a rear main gear respectively arranged on the front and rear ends of the sealing box, the front main gear and the rear main gear are respectively connected to the two vibrator connecting assemblies on the inner side, and are connected to the first motor and the second motor through a chain on the outer side, and a plurality of slave gears are connected to each other in a meshing transmission manner.

2. According to the structurally improved vibration screen main shaft synchronization device of claim 1, it is characterized in that: The diameter of the main gear is consistent with that of the slave gear and they are in a mutually meshing structure.

3. According to the structurally improved vibration screen main shaft synchronization device of claim 1, it is characterized in that: The two vibrator connecting assemblies are respectively rotated through the front main gear and the rear main gear.

4. The structurally improved vibration screen main shaft synchronization device according to claim 1 is characterized in that: The two vibrator connecting assemblies realize synchronous rotation through the main gear and the slave gear.

5. The structurally improved vibration screen main shaft synchronization device according to claim 1 is characterized in that: The slave gears include three front gears, a middle gear and a rear gear, and the front main gear and the rear main gear rotate in the same direction.

6. The structurally improved vibration screen main shaft synchronization device according to claim 1, characterized in that: The slave gears include four gears, which include a first gear, a second gear, a third gear and a fourth gear from front to back, and the front master gear and the rear master gear rotate in opposite directions.

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