Linear vibrating screening apparatus

Abstract

This utility model belongs to the technical field of screening devices, specifically relating to a linear vibrating screening device, including a base support and a screen frame. The screen frame is equipped with a vibrating motor and includes a receiving plate and a discharge port. The screen frame also includes a screen mechanism, which includes: a first screen, with a sliding connection component and a locking component jointly provided between the first screen and the screen frame; and a second screen, with the first screen and the second screen overlapping vertically. The aperture of the first screen is smaller than that of the second screen. This utility model sets up a first screen and a second screen with different apertures, enabling three-stage screening of particulate materials. At the same time, the first screen and the second screen can slide relative to each other to change the overlap area of ​​the first screen and the second screen, thereby controlling the screening time of the first screen and the second screen. This allows for fine screening based on the proportion of small and medium-sized particles in the particulate material.

Description

Technical Field

[0001] This utility model belongs to the technical field of screening devices, specifically relating to a linear vibrating screening device. Background Technology

[0002] When screening granular materials, specialized screening equipment is often required. Among them, linear vibrating screens are a common type of granular material screening equipment. Linear screens are mostly used for screening granular materials such as sand and gravel. The structure of a linear screen mainly consists of a base, a screen frame, and a vibrating motor. Its principle is that the vibrating motor causes the screen frame to vibrate obliquely from the feed side to the discharge side, thereby causing the material inside the screen frame to jump obliquely, thus achieving vibratory discharge and screening of the material.

[0003] For current linear vibrating screen equipment, the screen frame is generally equipped with only one set of screens to achieve secondary screening of granular materials. It is not convenient to perform multi-stage screening of granular materials, and it cannot adjust the screening process according to the type and proportion of granular materials. Therefore, we have made improvements based on the existing linear screening equipment and proposed a linear vibrating screen equipment. Utility Model Content

[0004] The purpose of this invention is to provide a linear vibrating screening device to solve the problems existing in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A linear vibrating screening device includes a base support and a screen frame. The screen frame is spring-mounted to the top of the base support. Vibrating motors are also installed on both sides of the lower end of the screen frame. The screen frame includes:

[0007] A receiving plate, which is fixedly installed on the feed side of the screen frame;

[0008] The discharge port is fixedly disposed on the discharge side of the screen frame;

[0009] The sieve frame further includes a sieve mechanism, which includes:

[0010] A first screen is provided with a sliding connection component and a locking component together with the screen frame, and one side of the first screen is located on the bottom side of the receiving plate.

[0011] The second screen is fixedly connected to the discharge side of the screen frame, and the other side of the first screen overlaps with the second screen.

[0012] The aperture of the first screen is smaller than that of the second screen, and the spacing between the apertures of the first screen and the second screen are the same.

[0013] As a further explanation of the technical solution of this utility model, the feed side of the screen frame is provided with a transverse sliding groove, and the sliding connection assembly includes:

[0014] The U-shaped slide is fixed at both ends of the first screen near the feed side, and the U-shaped slide is slidably connected to the transverse slide groove.

[0015] The U-shaped carriage is also equipped with an operating handle.

[0016] As a further explanation of the technical solution of this utility model, the locking component includes:

[0017] A locking frame is fixedly installed at one end of the first screen near the discharge side;

[0018] A locking bolt, which is threadedly connected to the locking frame;

[0019] A pressure plate is fixedly disposed at the end of the locking bolt, and is used to press and lock the screen frame.

[0020] As a further explanation of the technical solution of this utility model, the first screen is also provided with a discharge component, the discharge component including:

[0021] Two sets of connecting frames, both sets of connecting frames being fixedly installed at the bottom of the first screen;

[0022] The upper end of the V-shaped material distribution plate is fixedly connected to the ends of the two sets of connecting frames, and the lower ends of the V-shaped material distribution plate extend to the feeding side and the discharging side, respectively.

[0023] As a further explanation of the technical solution of this utility model, inclined guide plates corresponding to the V-shaped material distribution plate are fixedly installed on both the feed side and the discharge side of the screen frame.

[0024] As a further explanation of the technical solution of this utility model, protective plates are also provided on both sides of the lower end of the V-shaped material distribution plate.

[0025] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0026] ① A first screen and a second screen with different screen apertures are set up so that the granular material can be screened in three stages to screen out granular materials of three sizes: small, medium and large.

[0027] ② The first screen and the second screen can slide relative to each other to change the overlap area of ​​the first screen and the second screen, thereby controlling the screening time of the first screen and the second screen, and thus achieving fine screening based on the proportion of small particles and medium particles in the granular material. Attached Figure Description

[0028] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a partial cross-sectional view of the feed side of this utility model.

[0031] Figure 3 This is a schematic diagram of the installation structure of the screen mechanism of this utility model;

[0032] Figure 4 This is a schematic diagram of the initial state of this utility model;

[0033] Figure 5 This is a schematic diagram of the state during the fine screening of small particulate materials according to this utility model.

[0034] Figure 6 This is a schematic diagram of the state during the fine screening of medium-sized particulate materials according to this utility model;

[0035] The symbols for the main components are explained below:

[0036] Base support 100, screen frame 110, spring 111, vibrating motor 112, receiving plate 113, discharge port 114, transverse chute 115, inclined guide plate 116, screen mechanism 120, first screen 121, second screen 122, U-shaped slide 130, operating handle 131, locking frame 140, locking bolt 141, pressure plate 142, connecting frame 150, V-shaped material distribution plate 151, protective plate 152. Detailed Implementation

[0037] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Example:

[0039] like Figures 1 to 6 The linear vibrating screening device shown includes a base support 100 and a screen frame 110. The screen frame 110 is installed on the top of the base support 100 by springs 111. Vibrating motors 112 are also installed on both sides of the lower end of the screen frame 110.

[0040] This utility model is based on the design of existing linear vibrating screening equipment. Its principle is the same as that of existing linear vibrating screening equipment. Both are generated by the vibration motor 112, which causes the screen frame 110 to vibrate obliquely, thereby causing the material in the screen frame 110 to jump obliquely, thus realizing the movement and screening of the material in the screen frame 110.

[0041] The sieve frame 110 includes:

[0042] The receiving plate 113 is fixedly installed on the feed side of the screen frame 110;

[0043] The discharge port 114 is fixedly installed on the discharge side of the screen frame 110;

[0044] The sieve frame 110 also includes a sieve mechanism 120, which includes:

[0045] The first screen 121 and the screen frame 110 are provided with a sliding connection component and a locking component. One side of the first screen 121 is located on the bottom side of the receiving plate 121.

[0046] The second screen 122 is fixedly connected to the discharge side of the screen frame 110, and the other side of the first screen 121 overlaps with the second screen 122.

[0047] The aperture of the first screen 121 is smaller than that of the second screen 122, and the spacing between the apertures of the first screen 121 and the second screen 122 is the same.

[0048] Specifically, in this embodiment, the granular material to be screened, such as sand and gravel, is poured into the receiving plate 113. The vibrating motor 112 vibrates the screen frame 110, causing the material to jump from the receiving plate 113 to the discharge port 114. This embodiment is equipped with a first screen 121 and a second screen 122 with two different screen apertures. In this way, during the movement of the material, small particles are screened out by the first screen 121, medium particles are screened out by the second screen 122, and large particles are discharged through the discharge port 114, thus realizing three-stage screening of the material.

[0049] Meanwhile, the technical solution of this utility model further improves the screening of particulate materials, mainly by designing the screening process based on the different proportions of small and medium-sized particles in the particulate materials. Specifically:

[0050] like Figure 4As shown, the first screen 121 and the second screen 122 are in the initial state. At this time, the overlapping part between the first screen 121 and the second screen 122 can only screen out small particles of material, and the screening distance between the first screen 121 and the second screen 122 is approximately the same.

[0051] If the proportion of small particles in the granular material is larger, then a longer screening time is required for the small particles. In this case, the first screen 121 can be moved towards the second screen 122, increasing the overlap area between them. Since the mesh spacing of the first screen 121 and the second screen 122 is the same, the meshes of the first screen 121 and the second screen 122 can be aligned. Figure 5 As shown, the screening length of the first screen 121 is increased and the screening length of the second screen 122 is decreased. In the screening process of granular materials, the screening time of small granular materials can be effectively increased and the screening time of medium granular materials can be reduced, so as to achieve fine screening of small granular materials.

[0052] If the proportion of medium-sized particles in the particulate material is larger, then the first screen 121 can be moved away from the second screen 122 to reduce the overlap area between the first screen 121 and the second screen 122. Figure 6 As shown, the screening length of the second screen 122 is increased and the screening length of the first screen 121 is decreased. In the screening process of granular materials, the screening time of medium granular materials can be effectively increased and the screening time of small granular materials can be reduced, so as to achieve fine screening of medium granular materials.

[0053] This invention, based on existing linear screening devices, incorporates a first screen and a second screen with different aperture sizes, enabling three-stage screening of granular materials to produce small, medium, and large granular materials. Simultaneously, the first and second screens can slide relative to each other, altering their overlap area and thus allowing for control over the screening time. This, in turn, enables precise screening based on the proportion of small and medium-sized granules in the material.

[0054] As a further example illustrating the sliding connection component and locking component in this embodiment, such as Figures 1 to 3 As shown, the feed side of the screen frame 110 is provided with a transverse sliding groove 115, and the sliding connection assembly includes:

[0055] U-shaped slide 130, with both ends of the U-shaped slide 130 fixedly disposed at one end of the first screen 121 near the feed side, and the U-shaped slide 130 slidably connected to the transverse slide 115;

[0056] The U-shaped carriage 130 is also equipped with an operating handle 131;

[0057] The locking components include:

[0058] Locking frame 140 is fixedly installed at one end of the first screen 121 near the discharge side;

[0059] Locking bolt 141 is threadedly connected to locking bracket 140;

[0060] The pressure plate 142 is fixedly installed at the end of the locking bolt 141 and is pressed against the screen frame 110 for locking and fixing.

[0061] The sliding connection between the U-shaped slide 130 and the transverse slide groove 115 allows the first screen 121 to slide stably relative to the screen frame 110. When adjusting the sliding of the first screen 121, the first screen 121 can slide relative to the second screen 122 to change the overlapping area by pushing and pulling the operating handle 131. After the sliding adjustment is completed, the pressure plate 142 is pressed against the outer wall of the screen frame 110 by rotating the locking bolt 141, thereby fixing the first screen 121. This makes it easy to operate the sliding adjustment and locking of the first screen 121.

[0062] As a further design of the discharge structure during the screening process in this embodiment, such as Figures 3 to 6 As shown, the first screen 121 is also equipped with a discharge component, which includes:

[0063] Two sets of connecting frames 150 are fixedly installed at the bottom of the first screen 121;

[0064] V-shaped material distribution plate 151, the upper end of V-shaped material distribution plate 151 is fixedly connected to the ends of two sets of connecting frames 150, and the lower ends of V-shaped material distribution plate 151 extend to the feeding side and the discharging side respectively.

[0065] Both the feed side and the discharge side of the screen frame 110 are fixedly equipped with inclined guide plates 116 corresponding to the V-shaped material distribution plate 151.

[0066] Because the V-shaped material distribution plate 151 is fixed to the first screen 121 by the connecting frame 150, the V-shaped material distribution plate 151 can move along with the first screen 121. When small particles are screened out through the first screen 121, they are discharged through the V-shaped material distribution plate 151 and the inclined guide plate 116 on the feed side. When medium particles are screened out through the second screen 122, they are discharged through the V-shaped material distribution plate 151 and the inclined guide plate 116 on the discharge side.

[0067] Meanwhile, to ensure that the material does not leak from the side of the V-shaped distribution plate 151 after discharge, the following optimizations are made, such as... Figures 3 to 6As shown, protective plates 152 are also provided on both sides of the lower end of the V-shaped distribution plate 151; the protective plates 152 prevent the screened granular material from leaking out from the side of the V-shaped distribution plate 151, making it easier for the granular material to be discharged uniformly.

[0068] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A linear vibrating screening device, comprising a base support and a screen frame, wherein the screen frame is spring-mounted to the top of the base support, and a vibrating motor is mounted on both sides of the lower end of the screen frame, characterized in that: The sieve frame includes: A receiving plate, which is fixedly installed on the feed side of the screen frame; The discharge port is fixedly disposed on the discharge side of the screen frame; The sieve frame further includes a sieve mesh mechanism, which includes: A first screen is provided with a sliding connection component and a locking component together with the screen frame, and one side of the first screen is located on the bottom side of the receiving plate. The second screen is fixedly connected to the discharge side of the screen frame, and the other side of the first screen overlaps with the second screen. The aperture of the first screen is smaller than that of the second screen, and the spacing between the apertures of the first screen and the second screen are the same.

2. A linear vibrating sieving apparatus according to claim 1, characterized in that: The feed side of the screen frame is provided with a transverse sliding groove, and the sliding connection assembly includes: The U-shaped slide is fixed at both ends of the first screen near the feed side, and the U-shaped slide is slidably connected to the transverse slide groove. The U-shaped carriage is also equipped with an operating handle.

3. A linear vibrating sieving apparatus according to claim 2, characterized in that: The locking component includes: A locking frame is fixedly installed at one end of the first screen near the discharge side; A locking bolt, which is threadedly connected to the locking frame; A pressure plate is fixedly disposed at the end of the locking bolt, and is used to press and lock the screen frame.

4. A linear vibrating sieving apparatus as claimed in claim 3, characterized in that: The first screen is further provided with a discharge component, the discharge component including: Two sets of connecting frames, both sets of connecting frames being fixedly installed at the bottom of the first screen; The upper end of the V-shaped material distribution plate is fixedly connected to the ends of the two sets of connecting frames, and the lower ends of the V-shaped material distribution plate extend to the feeding side and the discharging side, respectively.

5. A linear vibrating sieving apparatus as claimed in claim 4, characterized in that: Both the feed side and discharge side of the screen frame are fixedly equipped with inclined guide plates corresponding to the V-shaped material distribution plate.

6. A linear vibrating sieving apparatus as claimed in claim 5, characterized in that: Protective plates are also provided on both sides of the lower end of the V-shaped material distribution plate.

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