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CN-224208496-U - Screening device with comprehensive vibration reduction function

CN224208496UCN 224208496 UCN224208496 UCN 224208496UCN-224208496-U

Abstract

The utility model belongs to the technical field of screening machines, and particularly relates to a screening device with comprehensive vibration reduction, which comprises a screening box, wherein a screening channel with a feeding end higher than a discharging end is arranged on the screening box, a vibrating motor connected with the screening box is arranged above the screening channel, a plurality of pairs of supporting spring groups connected to the screening box are arranged on opposite supports on two sides of the screening channel, at least one torsion damper is arranged in the supporting spring groups in parallel with springs, and the torsion damper has a rebound frequency different from that of the supporting spring groups. On the basis of traditional spring vibration reduction, the novel parallel torsional damper is used for carrying out double-frequency tuning on vibration, the original rebound frequency of the supporting spring set is changed through participation of the torsional damper, and the screen box can be separated from the resonance frequency to rapidly reach a stop state after the power supply of the vibration motor is closed, so that the service life of the supporting spring set is greatly prolonged, and the maintenance cost is reduced.

Inventors

  • ZHANG YONGZHI
  • Que Yinji
  • WU JIANGUO
  • KANG WEIGUO
  • ZHANG XIANFA

Assignees

  • 辰丰矿山工程机械(福建)有限公司

Dates

Publication Date
20260508
Application Date
20250423

Claims (10)

  1. 1. The utility model provides a divide screen assembly with synthesize damping, includes divides screen box (1), its characterized in that, divide to be provided with on screen box (1) and divide the sieve way that the feed end is higher than the discharge end, divide the sieve way top be provided with divide vibrating motor (2) that screen box (1) are connected, divide the both sides of sieve way to prop and be provided with a plurality of pairs of supporting spring group (3) of connecting on dividing screen box (1), still be provided with at least one torsion damper (4) side by side with the spring in supporting spring group (3), torsion damper (4) have with supporting spring group (3) different rebound frequency.
  2. 2. The screening device with comprehensive vibration reduction according to claim 1, wherein the supporting spring set (3) comprises a connecting block (31), a base (32) and a plurality of springs (33), two ends of each spring (33) are connected with the connecting block (31) and the base (32), the connecting block (31) is rotationally connected with the screening box (1), and the base (32) is fixedly connected with the ground.
  3. 3. The screening device with comprehensive vibration reduction according to claim 2, wherein a connecting channel steel (34) is arranged on the side wall of the screening box (1), a connecting shaft (35) extending outwards is rotatably arranged at the bottom of the connecting channel steel (34), and the connecting shaft (35) is connected in the connecting block (31).
  4. 4. A screening device with integrated vibration damping according to claim 3, characterized in that the connection of the connection shaft (35) with the connection channel (34) is provided with a reinforcing rib (36), which reinforcing rib (36) extends radially with the connection shaft (35) onto the channel wall of the connection channel (34).
  5. 5. A screening device with integrated vibration damping according to claim 3, characterized in that a detachable fixing clamping block (37) is arranged on one side of the connecting block (31) far away from the spring (33), and a simulated groove for clamping the connecting shaft (35) is formed between the fixing clamping block (37) and the connecting block (31).
  6. 6. The screening device with integrated vibration damping according to claim 2, characterized in that one end of the torsional damper (4) is connected to the connecting block (31), and the other end of the torsional damper (4) is connected to a groove formed in the base (32).
  7. 7. The screening device with integrated vibration damping according to claim 2, wherein the torsional damper (4) comprises a torsion bar (41) and support swing arms (42), one end parts of the two support swing arms (42) are rotatably connected to the same connector (43), and the other end parts of the two support swing arms (42) are respectively connected with the connecting block (31) or the bottom bracket (32) through the torsion bar (41).
  8. 8. The screen separation device with integrated vibration damping according to claim 7, characterized in that the support swing arm (42) is also connected with the connector (43) by a torsion bar (41), the connector (43) limiting the torsion bar (41) from rotating circumferentially.
  9. 9. The screening device with comprehensive vibration reduction according to claim 1, wherein the screening box (1) comprises a support panel (11) and a screening panel (12), the support panel (11) is arranged on two sides of the screening panel (12) to form a screening path, and the vibration motor (2) and the support spring group (3) are arranged on the support panel (11).
  10. 10. The screening device with integrated vibration damping according to claim 9, characterized in that the vibration motor (2) is clamped in a fixed frame (21), and the fixed frame (21) is connected with the support panel (11) through multi-point bolts.

Description

Screening device with comprehensive vibration reduction function Technical Field The utility model belongs to the technical field of screening machines, and particularly relates to a screening device with comprehensive vibration reduction. Background The process of breaking up material into different fractions by one or more layers of screening surface is called screening. The sieving machine is vibration sieving mechanical equipment which utilizes the relative motion of the granular materials and the sieving surface to enable partial particles to penetrate through sieve holes and divide the materials such as sand, gravel, broken stone and the like into different grades according to the particle size. The screening process of a screening machine is generally continuous, and after screening raw materials are applied to a screening machine (called a screen for short), the materials smaller than the screen mesh size penetrate through the screen mesh to be called as undersize products, and the materials larger than the screen mesh size are continuously discharged from the screen surface to be called as oversize products. The heavy-duty feeding screening machine disclosed in the patent CN203356061U mainly comprises a feeding screening machine body, damping springs, side plate type vibrating motors and an electric cabinet, wherein two side plate type vibrating motors are respectively arranged on two sides of the feeding screening machine body, the two side plate type vibrating motors on the same central line are connected together through universal couplings, the feeding screening machine body is arranged on a support through the damping springs, the damping springs are positioned through spring guide posts, the input ends of the electric cabinet are connected with a main control power supply through cables, and the output ends of the electric cabinet are connected with the side plate type vibrating motors through cables. According to the plane single body vibration synchronization theory, the utility model utilizes the superposition component force in the direction vertical to the central connecting line when the two groups of side plate type vibration motors synchronously and reversely run to enable the feeding screening machine body to carry out simple harmonic motion along the resultant force direction, thereby achieving the purpose of feeding screening, and being suitable for uniform and quantitative feeding of the primary breaking crusher in industries such as mines, water and electricity, building materials and the like. In the scheme, the electric cabinet can adopt energy consumption braking to enable the heavy screening feeder to rapidly stop and rapidly pass through the resonance area, and the heavy screening box can continuously shake under the inertia effect through the vibration reduction spring support although the vibration source is removed after the power supply of the vibration motor is cut off, and the service life of equipment is seriously influenced in a long time through the resonance area. Disclosure of utility model The utility model aims to solve the problems and provides a screening device with comprehensive vibration reduction. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a divide sieve device with synthesize damping, includes divides the sieve case, divide to be provided with the branch sieve way that the feed end is higher than the discharge end on the sieve case, divide the sieve way top be provided with divide the vibrating motor that the sieve case is connected, divide the both sides of sieve way to prop and be provided with a plurality of pairs of supporting spring group who connects on the sieve case, still be provided with at least one torsion damper side by side with the spring in the supporting spring group, torsion damper have with the different rebound frequency of supporting spring group. In the screening device with comprehensive vibration reduction, the supporting spring group comprises a connecting block, a bottom support and a plurality of springs, two ends of each spring are connected with the connecting block and the bottom support, the connecting block is rotationally connected with the screening box, and the bottom support is fixedly connected with the ground. In the screening device with comprehensive vibration reduction, a connecting channel steel is arranged on the side wall of the screening box, a connecting shaft extending outwards is arranged at the bottom of the connecting channel steel in a rotating mode, and the connecting shaft is connected in the connecting block. In the screening device with comprehensive vibration reduction, a reinforcing rib is arranged at the joint of the connecting shaft and the connecting channel steel, and the reinforcing rib radially extends to the groove wall of the connecting channel steel through the connecting shaft. In the screening device w