CN102431009A - Circular vibrating screen vibration exciter maintenance equipment - Google Patents

Abstract

The invention belongs to the technical field of tools for mechanical assembly, and particularly relates to a special tool for overhauling a vibration exciter of a circular vibrating screen. The lifting and pressing device comprises a base platform with a round hole, two vertical stand columns, a lifting and pressing plate, a jack, an adjusting limiting plate, a screw rod, a fixed top plate, a fastening nut, two vertical springs, a bearing dismounting and pushing sleeve and a bearing mounting and pushing sleeve, wherein the two vertical stand columns are connected with the lifting and pressing plate in a sliding mode, the fixed top plate is fixedly connected with the tops of the two vertical stand columns, the two vertical stand columns are symmetrically arranged on two sides of a center hole in the base platform, and the two vertical springs are symmetrically arranged on two sides of the jack. The screw rod and the round hole on the base platform are the same central line. The invention can effectively avoid the damage of the rotating shaft and the deformation of the outer sleeve caused by misoperation when the vibration exciter is disassembled and assembled, avoid the biting abrasion among the bearing, the outer sleeve of the vibration exciter and the rotating shaft, effectively prolong the service cycle of the vibration exciter and reduce the cost of mineral processing equipment.

Description

Circular vibrating screen vibration exciter maintenance equipment

technical field

The invention belongs to the technical field of tools for mechanical assembly, and in particular relates to a special tool for inspection and maintenance of a circular vibrating screen vibration exciter.

Background technique

Circular vibrating screen is a mineral processing and screening equipment widely used in China. The equipment is mainly composed of plate type screen box, vibration exciter, transmission system, vibration reduction system and screen mesh. And the main part of the vibrator has the vibrator cover 17 with the outer ring boss 18 as shown in accompanying drawing 2, the bearing group 16 that is connected with this vibrator cover 17 and the stepped rotating shaft that is connected with this bearing group 15. Since the bearing group is in the working state of high-speed rotation and vibration for a long time, and the cooperation between the bearing group, the stepped shaft and the outer casing of the vibrator is generally a high-precision transition fit, and it is in a state of vibration for a long time, the bearing is vulnerable. Parts must be regularly maintained or replaced with new ones. However, due to the relatively large volume and weight of the vibrator, it is not convenient to carry, disassemble and assemble. It is also impossible to disassemble using conventional tools and conventional straight-pull methods. Therefore, during disassembly, maintenance workers often use sledgehammers to repeatedly hit the parts connected to the bearing, or use destructive cutting methods to divide the bearing. Not only makes the maintenance process time-consuming and laborious. Moreover, this destructive disassembly method is easy to cause deformation of the exciter jacket and scratches on the stepped shaft, reducing the service life of the jacket and the stepped shaft. When assembling the vibrator, the bearing needs to be manually placed on the stepped shaft, and then use a sledgehammer to tap left and right to move it to the correct position on the stepped shaft, and then the stepped shaft with the bearing group needs to be installed in the same way. Inside the vibrator jacket. Therefore, during the knocking process, due to the uneven axial force on the bearing, the parallel movement cannot be guaranteed, and it is easy to cause gnawing wear between the stepped shaft and the outer casing of the exciter, resulting in damage to the exciter components, reducing the smoothness between components or even Damage will lead to the reduction of the service life of the exciter, resulting in huge economic losses and increasing the cost of mineral processing equipment.

Contents of the invention

The object of the present invention is to provide a special tool for checking and repairing the vibration exciter of the circular vibrating screen with simple structure, convenient operation and time-saving and labor-saving.

The purpose of the present invention is achieved through the following technical solutions:

The special equipment for inspection and maintenance of the circular vibrating screen exciter of the present invention is characterized in that it consists of a base platform with a round hole, two vertical columns fixed on the base platform, and lifting pressure plates slidingly connected with the two vertical columns, The jack set on the lifting pressure plate, the adjustment limit plate set above the jack, the screw rod fixedly connected with the adjustment limit plate, the fixed top plate and the fastening nut threaded with the screw rod respectively, and the two ends are respectively connected with the set The two vertical springs connected to the fixed top plate and the lifting pressure plate are composed of a bearing-removing push sleeve and a bearing-installed push sleeve placed on the base platform for use. The fixed top plate is connected to the two vertical columns. The top is fixedly connected, the two vertical columns are symmetrically arranged on both sides of the central hole on the base platform, and the two vertical springs are symmetrically arranged on both sides of the jack. The screw rod and the round hole on the base platform are on the same center line.

A peripheral frame for fixing the position of the jack is arranged on the lifting pressure plate.

The vertical spring is an extension spring with connectors at both ends.

Advantages of the present invention:

1) The structure of the present invention is simple, easy to use by maintenance workers, and greatly reduces the labor intensity of workers. It takes 6 hours to disassemble and assemble a vibration exciter before, which can be shortened to 1.5 hours, effectively improving the maintenance efficiency;

2. The application of the present invention can effectively avoid damage to the rotating shaft and deformation of the casing due to misoperation during the disassembly and assembly of the exciter, avoid gnawing wear between the bearing and the casing of the exciter, and the rotating shaft, and ensure the integrity of the components. The smoothness effectively prolongs the service life of the exciter and reduces the cost of mineral processing equipment. the

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the main components of the application object vibrator of the present invention.

Detailed ways

The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2: the special appliance for overhauling the exciter of the circular vibrating screen of the present invention is characterized in that by the base platform 2 with the circular hole 1, two vertical columns 3 fixed on the base platform are respectively connected with the The lifting pressure plate 4 that these two vertical columns 3 are slidably connected, the jack 6 that is arranged on this lifting pressure plate, the adjustment limit plate 10 that is arranged on the top of this jack, and the screw rod 8 that is fixedly connected with this adjustment limit plate are respectively connected with this The fixed top plate 11 and the fastening nut 9 threaded by the screw rod 8, two vertical springs 5 connected to the fixed top plate and the lifting pressure plate at both ends, and the bearing removal push sleeve 13 placed on the base platform 2 for use Composed of a bearing-mounted propulsion sleeve 14, the fixed top plate 11 is fixedly connected to the tops of the two vertical columns 3, and the two vertical columns are symmetrically arranged on both sides of the circular holes on the base platform, The two vertical springs are arranged symmetrically on both sides of the jack. The screw rod and the round hole on the base platform are on the same center line.

The lifting plate 4 is provided with a peripheral frame 12 for fixing the position of the jack.

The vertical spring is an extension spring with connectors 7 at both ends.

When using the present invention to disassemble the failed bearing on the exciter, put the sleeve with the boss on the exciter into the round hole 1 on the base platform 2, and the boss of the sleeve is stuck on the edge of the round hole 1 , put the bearing removal push sleeve 13 on the stepped shaft 15 on the vibrator, and the upper surface is higher than the upper end of the stepped shaft 15, after starting the jack 6, the lifting pressure plate 4 moves downwards, and slowly pushes the removed bearing The sleeve 13 exerts force, thereby driving the stepped rotating shaft 15 to move down, and finally break away from the inner ring of the bearing.

When using the present invention to install new bearings on the vibrator, put the overcoat with the boss on the vibrator into the round hole 1 on the base platform 2, and the boss of the overcoat is stuck in the round hole 1. On the edge, first align the bearing to be installed with the outer casing hole, then push the bottom end of the bearing-installed sleeve 14 against the upper surface of the bearing, after starting the jack 6, the lifting and lowering plate 4 moves downward, and slowly align the bearing Push the sleeve 14 to apply force, thereby driving the stepped rotating shaft 15 to move down, and finally enter the outer casing of the vibrator.

When the bearing is disassembled and installed by using the present invention, the force exerted on the bearing is even, and the parts are not damaged. It is especially time-saving and labor-saving for the installation or maintenance of large-scale equipment, and is suitable for vigorous promotion in mining enterprises. the

Claims (3)

1. a circle shakes and sieves vibrator maintenance special implement, it is characterized in that by round-meshed base platform, is fixed on two vertical pillars on this base platform; Two up-down pressing plates that vertical pillars is slidingly connected therewith respectively; Be located at the jack on this up-down pressing plate, be located at the adjustment limiting plate of this jack top, adjust the screw rod that limiting plate is fixedly connected therewith; Difference is the fixedly top board and the clamp nut of screw flight connection therewith; Two uprighting springs that two ends are connected with the up-down pressing plate with described fixedly top board respectively are placed on the bearing propelling sleeve of tearing open for use on the base platform and form with dress bearing propelling sleeve, and described fixedly top board is fixedly connected with the top of described two vertical pillars; Described two vertical pillars are arranged symmetrically in the centre bore both sides on the said base platform; Described two uprighting springs are arranged symmetrically in described jack both sides, described jack, and the circular hole on screw rod and the said base platform is same center line.

2. circle according to claim 1 shakes and sieves vibrator maintenance special implement, it is characterized in that described up-down pressing plate is provided with the peripheral frame of fixing said jack position.

3. circle according to claim 1 shakes and sieves vibrator maintenance special implement, it is characterized in that described uprighting spring is the extension spring that two ends have connector respectively.

Images