Vibrating screen protection device

Abstract

The utility model discloses a protective device of a vibrating screen, which relates to the technical field of vibrating screens, and aims to solve the problem that a screen mesh of an existing vibrating screen is easy to damage due to material impact during feeding, and comprises a vibrating screen body, a top plate is arranged at the top of the rear side of the vibrating screen body, and a feeding hopper is arranged on the top plate; due to the arrangement of the upper guide plate, the lower guide plate and the connecting rod, materials can be guided by the double-layer guide plates when entering the screen mesh, the falling angle of the materials during feeding is reduced, the force of directly impacting the screen mesh is reduced, and the material feeding efficiency is improved. Therefore, the screen located at the feeding position is effectively protected, the production cost is effectively reduced, the production efficiency is improved, the service life of equipment is prolonged, meanwhile, the spring supporting mechanism can achieve automatic reset of the lower guide plate, materials completely fall into the vibrating screen, and it is guaranteed that the materials are fully screened.

Description

Technical Field

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

[0002] Vibrating screen is a common solid material screening equipment used for screening and grading materials. It uses vibration force to make the material move on the screen, separate or classify the material according to particle size, and plays an important role in the screening, grading, and impurity removal of powders, particles, and liquids.

[0003] The screen is an important component on the vibrating screen. When the material is vibrated and screened on the screen, it will cause wear to the screen, so the screen needs to be replaced regularly. In the actual production process, the screen at the feeding position is more prone to damage due to the continuous impact of the falling material during feeding, which shortens the service life of the screen and increases production costs.

[0004] Therefore, the present application provides a vibrating screen protection device to meet the needs. Utility Model Content

[0005] The purpose of the present application is to provide a vibrating screen protection device, in which a linked material guide plate is arranged at the feed inlet to reduce the impact on the screen while ensuring the feed flow rate.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a vibrating screen protection device, comprising a vibrating screen body, a top plate is provided on the top of the rear side of the vibrating screen body, and a feed hopper is provided on the top plate;

[0007] An upper guide plate and a lower guide plate are hinged in the vibrating screen body, the upper guide plate is located below the feed hopper, the lower guide plate is located below the upper guide plate, a connecting rod is hinged between the upper guide plate and the lower guide plate, and the two can be linked in the feeding process;

[0008] A spring support mechanism is provided between the bottom of the lower guide plate and the vibrating screen body, and the spring support mechanism is used to support the lower guide plate and reset the lower guide plate;

[0009] When the lower guide plate is in the initial position, the angle between the upper guide plate and the horizontal plane is smaller than the angle between the lower guide plate and the horizontal plane.

[0010] Preferably, the upper guide plate and the lower guide plate are both hinged to the left and right side walls of the vibrating screen body at the rear side, and there is a material passing gap between the rear side of the lower guide plate and the rear side wall of the vibrating screen body.

[0011] Preferably, the spring support mechanism includes a sliding sleeve, a support rod, and a support spring. The sliding sleeve has two groups and is symmetrically hinged on the left and right side walls of the vibrating screen body. The support rod is slidably connected to the sliding sleeve. The top of the support rod is hinged to the lower guide plate. A positioning ring is provided on the support rod. The positioning ring is located between the sliding sleeve and the lower guide plate. A support spring is pressed between the positioning ring and the sliding sleeve.

[0012] Preferably, a telescopic rod is provided at the bottom of the top plate, a buffer spring is sleeved on the telescopic rod, a buffer block is provided at the telescopic end of the telescopic rod, and the buffer block abuts against the top surface of the upper guide plate to stably limit the upper guide plate.

[0013] Preferably, a baffle is provided on the front side of the lower guide plate, and the baffle is used to block the material sliding down the upper guide plate.

[0014] In summary, the technical effects and advantages of the utility model are:

[0015] The utility model arranges an upper guide plate, a lower guide plate and a connecting rod so that the material can be guided by the double-layer guide plate when entering the screen, thereby reducing the falling angle of the material during feeding and reducing the force of direct impact on the screen, thereby effectively protecting the screen at the feeding position and preventing it from being damaged too quickly due to continuous impact, effectively reducing production costs, and improving production efficiency and equipment service life. At the same time, the spring support mechanism at the bottom of the lower guide plate can realize the automatic resetting of the lower guide plate when the feeding is completed, so that the material falls completely into the vibrating screen, ensuring that the material is fully screened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 This is an enlarged structural diagram of the utility model at A;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0020] In the figure: 1. vibrating screen body; 2. upper guide plate; 3. lower guide plate; 4. connecting rod; 5. sliding sleeve; 6. supporting rod; 10. top plate; 11. feed hopper; 12. telescopic rod; 13. buffer spring; 30. baffle; 50. support spring; 60. positioning ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Reference Figure 1-3 A vibrating screen protection device shown in the figure comprises a vibrating screen body 1, a top plate 10 is provided on the top of the rear side of the vibrating screen body 1, and a feed hopper 11 is provided on the top plate 10;

[0023] An upper guide plate 2 and a lower guide plate 3 are hinged in the vibrating screen body 1. The upper guide plate 2 is located below the feed hopper 11, and the lower guide plate 3 is located below the upper guide plate 2. A connecting rod 4 is hinged between the upper guide plate 2 and the lower guide plate 3.

[0024] A spring support mechanism is provided between the bottom of the lower guide plate 3 and the vibrating screen body 1, and the spring support mechanism is used to support the lower guide plate 3 and reset the lower guide plate 3;

[0025] When the lower guide plate 3 is in the initial position, the angle between the upper guide plate 2 and the horizontal plane is smaller than the angle between the lower guide plate 3 and the horizontal plane, which can ensure that when feeding, at least one of the upper guide plate 2 and the lower guide plate 3 maintains a relatively gentle feeding angle, thereby reducing the impact force during feeding.

[0026] As an implementation method in this embodiment, in order to allow the material to enter from the rear of the vibrating screen body 1 and be fully screened, Figure 1 As shown, the upper guide plate 2 and the lower guide plate 3 are both hinged to the left and right side walls of the vibrating screen body 1 at the rear side, and there is a material passing gap between the rear side of the lower guide plate 3 and the rear side wall of the vibrating screen body 1 .

[0027] As an implementation method in this embodiment, in order to make the upper guide plate 2 and the lower guide plate 3 rotate smoothly during feeding, as shown in FIG. Figure 2 As shown, the spring support mechanism includes a sliding sleeve 5, a support rod 6, and a support spring 50. The sliding sleeve 5 has two groups and is symmetrically hinged on the left and right side walls of the vibrating screen body 1. The sliding sleeve 5 is slidably connected with the support rod 6. The top of the support rod 6 is hinged to the lower guide plate 3. A positioning ring 60 is provided on the support rod 6. The positioning ring 60 is located between the sliding sleeve 5 and the lower guide plate 3. A support spring 50 is pressed between the positioning ring 60 and the sliding sleeve 5.

[0028] As an implementation method in this embodiment, in order to reduce the impact on the upper guide plate 2 and the lower guide plate 3 when they are reset, as shown in FIG. Figure 3As shown, a telescopic rod 12 is provided at the bottom of the top plate 10 , a buffer spring 13 is sleeved on the telescopic rod 12 , a buffer block is provided at the telescopic end of the telescopic rod 12 , and the buffer block abuts against the top surface of the upper guide plate 2 .

[0029] As an implementation method in this embodiment, in order to allow the material to be smoothly fed along the upper guide plate 2 and the lower guide plate 3, as shown in FIG. Figure 1 As shown, a baffle 30 is provided on the front side of the lower guide plate 3 , and the baffle 30 is used to block the material sliding down from the upper guide plate 2 .

[0030] Working principle of the utility model: when the vibrating screen body 1 is not started, due to the supporting effect of the supporting spring 50 between the positioning ring 60 and the sliding sleeve 5, the support rod 6 lifts up the lower guide plate 3, and the lower guide plate 3 lifts up the upper guide plate 2 through the connecting rod 4. Due to the limit of the telescopic rod 12 driven by the buffer spring 13, the front side of the upper guide plate 2 is turned down, and the front side of the lower guide plate 3 is turned up, and the angle between the upper guide plate 2 and the horizontal plane is smaller than the angle between the lower guide plate 3 and the horizontal plane. At this time, the upper guide plate 2 forms a relatively gentle slope. When the vibrating screen body 1 is started and the material is fed, the material enters from the feed hopper 11 on the top plate 10, first falls on the upper guide plate 2 and slowly slides down along the upper guide plate 2 to reduce the impact, then falls on the lower guide plate 3 and slides down along the lower guide plate 3 to the screen at the bottom of the vibrating screen body 1, and is screened with the vibration of the vibrating screen body 1; during the feeding process, due to the weight of the material and the impact force of the fall, the upper guide plate 2 drives the lower guide plate 3 to flip downward through the connecting rod 4, and in this process, the support spring 50 The support rod 6 is compressed, and the lower guide plate 3 is continuously supported by the support rod 6, so that the upper guide plate 2 and the lower guide plate 3 can be stably turned over. The upper guide plate 2 is separated from the telescopic rod 12 during the turning process. After the support spring 50 is compressed to the limit, the lower guide plate 3 is supported to maintain a relatively gentle slope. Due to the synchronous driving of the connecting rod 4, the angle between the lower guide plate 3 and the horizontal plane is smaller than the angle between the upper guide plate 2 and the horizontal plane, so that the material slides slowly along the lower guide plate 3, reducing the impact force on the screen when falling, and the baffle 30 blocks the material from The material sliding down on the upper guide plate 2 can continue to slide along the lower guide plate 3 to ensure that the feeding path of the material is controllable; after the feeding is completed, since the material on the upper guide plate 2 and the lower guide plate 3 gradually decreases, the support spring 50 gradually bounces up, causing the front sides of the upper guide plate 2 and the lower guide plate 3 to flip upward, and the material on the lower guide plate 3 falls completely, completing the feeding, and the upper guide plate 2 contacts the buffer block at the end of the telescopic rod 12 when flipping, and under the elastic support of the buffer spring 13, the upper guide plate 2 is smoothly reset.

[0031] The electromechanical connection involved in the present utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0032] Components not described in detail herein are prior art.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A vibrating screen protection device, comprising a vibrating screen body (1), a top plate (10) being provided at the top of the rear side of the vibrating screen body (1), a feed hopper (11) being provided on the top plate (10), characterized in that: An upper guide plate (2) and a lower guide plate (3) are hingedly connected in the vibrating screen body (1), the upper guide plate (2) is located below the feed hopper (11), the lower guide plate (3) is located below the upper guide plate (2), and a connecting rod (4) is hingedly connected between the upper guide plate (2) and the lower guide plate (3); A spring support mechanism is provided between the bottom of the lower guide plate (3) and the vibrating screen body (1), the spring support mechanism being used to support the lower guide plate (3) and reset the lower guide plate (3); When the lower guide plate (3) is in the initial position, the angle between the upper guide plate (2) and the horizontal plane is smaller than the angle between the lower guide plate (3) and the horizontal plane.

2. A vibrating screen protection device according to claim 1, characterized in that: The upper guide plate (2) and the lower guide plate (3) are both hingedly connected to the left and right side walls of the vibrating screen body (1) at the rear side, and a material passing gap exists between the rear side of the lower guide plate (3) and the rear side wall of the vibrating screen body (1).

3. A vibrating screen protection device according to claim 1, characterized in that: The spring support mechanism comprises a sliding sleeve (5), a support rod (6), and a support spring (50); the sliding sleeve (5) has two groups and is symmetrically hinged on the left and right side walls of the vibrating screen body (1); the support rod (6) is slidably connected to the sliding sleeve (5); the top end of the support rod (6) is hinged to the lower guide plate (3); a positioning ring (60) is provided on the support rod (6); the positioning ring (60) is located between the sliding sleeve (5) and the lower guide plate (3); and a support spring (50) is press-fitted between the positioning ring (60) and the sliding sleeve (5).

4. A vibrating screen protection device according to claim 1, characterized in that: A telescopic rod (12) is provided at the bottom of the top plate (10), a buffer spring (13) is sleeved on the telescopic rod (12), a buffer block is provided at the telescopic end of the telescopic rod (12), and the buffer block abuts against the top surface of the upper guide plate (2).

5. A vibrating screen protection device according to claim 1, characterized in that: A baffle (30) is provided on the front side of the lower guide plate (3), and the baffle (30) is used to block materials sliding down the upper guide plate (2).

Images