Linear vibrating screen with screen cloth capable of being replaced quickly

Abstract

The linear vibrating screen comprises a base, an outer screen box, a vibrating motor, an inner screen box and a box cover, the outer screen box is connected with the base through a damping spring, the vibrating motor is arranged on the outer screen box, the outer screen box comprises a bottom plate and a surrounding plate, the inner screen box comprises a supporting plate, a screening net and a vertical plate, the screening net is installed on the supporting plate, and the vertical plate is arranged on the bottom plate. The outer screen box and the inner screen boxes are each in a dustpan shape with an upper opening and a front opening, a lower flange is arranged on the outer side of the upper end of the surrounding plate, an upper flange is arranged at the lower end of the box cover, a hanging lug plate is arranged on the outer side of the upper end of the vertical plate, a first discharging port is formed in the end, away from the feeding port, of the bottom plate, and a second discharging port is formed in the end, away from the feeding port, of the supporting plate. The multiple inner screen boxes are sequentially stacked in the outer screen box in the vertical direction, material guide baffles are arranged beside the first discharging port and the second discharging port, and buckling assemblies are arranged on the outer screen box and the box cover. Screening nets of the multi-layer linear vibrating screen can be rapidly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a linear vibrating screen with fast screen replacement. Background Art

[0002] Linear vibration screening machines generally consist of three parts: a high-frequency vibration motor, a screening screen structure and a casing. The casing relies on the high-frequency vibration motor to generate vibrations, and the material jumps and moves downward on the screen surface. Due to the different particle sizes of the materials, small particles fall through the screen mesh during the vibration process and are separated from large particles, thereby achieving screening of material particles of different sizes.

[0003] In order to ensure that the material does not fall out of the device during the screening process and to reduce noise, the linear vibration screening machine in the prior art has a fully sealed casing, and the screening mesh structure is set inside the casing. Since the material is vibrated and screened for a long time, the screening mesh is easily worn, resulting in a decrease in the screening accuracy. In order to ensure the screening accuracy and efficiency, the screen needs to be replaced regularly. At the same time, when changing the material to be screened, it is also necessary to replace the screen with a different aperture. However, the linear vibration screening machine in the prior art has a fully sealed casing and the screening mesh is set inside the casing, especially the multi-level linear vibration screen, which is very inconvenient to replace the screen. Utility Model Content

[0004] In view of this, the present invention aims to solve the deficiencies in the prior art, and its main purpose is to provide a linear vibrating screen with a fast screen replacement, which can quickly replace the screening mesh of a multi-level linear vibrating screen.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A linear vibrating screen with a quick screen replacement comprises a base, an outer screen box, a vibration motor, an inner screen box and a box cover, wherein the outer screen box is connected to the base through a shock-absorbing spring, the vibration motor is arranged on the outer screen box, a feed port is arranged at one end of the box cover, the outer screen box comprises a bottom plate and a surrounding plate, the bottom plate is arranged on the inner side of the lower end of the surrounding plate, the inner screen box comprises a support plate, a screening net and a vertical plate, the support plate is arranged on the inner lower end of the vertical plate, the screening net is mounted on the support plate, the outer screen box and the inner screen box are both in the shape of a dustpan with an upper opening and a front opening, the outer side of the upper end of the surrounding plate is provided with a lower flange extending outward, the lower end edge of the box cover is provided with an upper flange corresponding to the lower flange, the outer side of the upper end of the vertical plate is provided with There is an outwardly extending ear plate, a first discharge port is provided at one end of the bottom plate away from the feed port, a second discharge port is provided at one end of the support plate away from the feed port, there are multiple inner screen boxes, and the multiple inner screen boxes are stacked in the outer screen box in the vertical direction in turn, the first discharge port and the multiple second discharge ports are staggered in the vertical position, and the first discharge port and the second discharge port are provided with material guide baffles on the sides, and the outer screen box and the box cover are provided with snap-fit ​​components; during assembly, the multiple inner screen boxes are sequentially embedded in the outer screen box from the upper opening of the outer screen box, and then the box cover is closed, and the ear plates of the inner screen boxes are fixed between the upper flange of the box cover and the lower flange of the outer screen box through the snap-fit ​​components.

[0007] Furthermore, a material guide pipe is provided at the lower end of each of the first discharge port and the second discharge port.

[0008] Furthermore, an escape space for the material guide pipe to pass through is provided at one end of the bottom plate away from the material feed port.

[0009] Further, the screen box comprises a front side plate, and the front side plate is arranged at the front opening of the outer screen box.

[0010] Further, the snap-fit ​​assembly includes a first snap-fit ​​component, a second snap-fit ​​component, a handle and a connecting rod, the first snap-fit ​​component is fixed to the outer side of the box cover, the first snap-fit ​​component is provided with a snap-fit ​​groove, the second snap-fit ​​component is fixed to the outer side of the screen box, the second snap-fit ​​component is provided with a first rotating shaft, one end of the handle is connected to the first rotating shaft, the handle is provided with a second rotating shaft, one end of the connecting rod is connected to the second rotating shaft, and the other end of the connecting rod extends into the snap-fit ​​groove.

[0011] Furthermore, one end of the connecting rod is inserted into the second rotating shaft, and a limit nut and a fixing nut are screwed on the connecting rod, and the limit nut and the fixing nut are respectively arranged on both sides of the second rotating shaft.

[0012] Furthermore, the screening net is detachably mounted on the support plate, an inner edge of the support plate is provided with a mounting groove, the edge of the screening net is embedded in the mounting groove, and a fixing mechanism for fixing the screening net is also provided on the support plate.

[0013] Furthermore, the fixing mechanism includes a third rotating shaft and a fixing block arranged on the third rotating shaft, and one end of the fixing block away from the third rotating shaft can be rotated to above the mounting groove.

[0014] Furthermore, the support plate is provided with reinforcing ribs.

[0015] The above-mentioned quick-change screen linear vibrating screen achieves the effect of multi-level screening of materials by arranging multiple screen assemblies which are installed in the screen box in sequence from bottom to top; when installing the screen assemblies, the ear plates of the multiple screen assemblies are hung on the lower flange of the screen box in sequence, and then each ear plate is fixed between the upper flange of the box cover and the lower flange of the screen box through the snap-fit ​​assembly, thereby fixing the multiple screen assemblies; when replacing, disassembling and installing the screen assembly, the snap-fit ​​assembly is opened, the box cover is removed to take out the screen assembly, thereby achieving the effect of quickly and conveniently replacing multiple screen assemblies, simplifying the operation steps and greatly improving the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 It is another overall structural schematic diagram of an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the exploded structure of an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the screen assembly of an embodiment of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the installation method of the screen assembly of the embodiment of the utility model;

[0021] Figure 6 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0022] Figure 7 yes Figure 4 A magnified schematic diagram of point B in the middle.

[0023] Description of reference numerals:

[0024] 100, base; 110, shock absorbing spring;

[0025] 200, outer screen box; 210, bottom plate; 220, enclosure; 230, lower flange; 240, avoidance space; 250, front side plate;

[0026] 300, vibration motor;

[0027] 400, box cover; 410, feed port; 420, upper flange;

[0028] 500, inner screen box; 511, ear plate; 512, vertical plate; 520, screening net; 530, support plate; 531, mounting groove; 532, fixing mechanism; 533, third rotating shaft; 534, fixing block; 535, reinforcing rib;

[0029] 600, material guide baffle; 610, material guide pipe;

[0030] 700, snap-fit ​​assembly; 710, first snap-fit ​​member; 711, snap-fit ​​groove; 720, second snap-fit ​​member; 721, first rotating shaft; 722, second rotating shaft; 730, handle; 740, connecting rod; 741, limiting nut; 742, fixing nut. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] See also Figures 1 to 7, shows a fast-changing screen linear vibrating screen provided by an embodiment of the utility model, which includes a base 100, an outer screen box 200, a vibration motor 300, an inner screen box 500 and a box cover 400, the outer screen box 200 is connected to the base 100 through a shock-absorbing spring 110, the vibration motor 300 is arranged on the outer screen box 200, and a feed port 410 is arranged at one end of the box cover 400, the outer screen box 200 includes a bottom plate 210 and a surrounding plate 220, the bottom plate 210 is arranged on the inner side of the lower end of the surrounding plate 220, and the inner screen box 500 The outer screen box 200 and the inner screen box 500 are both in the shape of a dustpan with an upper opening and a front opening. The outer side of the upper end of the enclosure 220 is provided with a lower flange 230 extending outward. The lower end edge of the box cover 400 is provided with an upper flange 420 corresponding to the lower flange 230. The outer side of the upper end of the vertical plate 512 is provided with an outwardly extending ear plate 511. The ear plate 511 is stacked on the upper end of the lower flange 230 of the screen box 200, and plays a role in supporting the inner screen box 500. The end of the bottom plate 210 away from the feed port 410 is provided with a first discharge port (not shown in the figure), and the end of the support plate 530 away from the feed port 410 is provided with a second discharge port (not shown in the figure). There are multiple inner screen boxes 500, and the multiple inner screen boxes 500 are sequentially stacked in the outer screen box 200 in the vertical direction. The first discharge port and the multiple second discharge ports are staggered in the vertical direction. That is, the first discharge port and The vertical projections of the multiple second discharge ports on the horizontal plane do not overlap, and the first discharge port and the second discharge port are both provided with material guide baffles 600, and the outer screen box 200 and the box cover 400 are provided with snap-fit ​​components 700; during assembly, the multiple inner screen boxes 500 are sequentially embedded in the outer screen box 200 from the upper opening of the outer screen box 200, and then the box cover 400 is closed, and the ear plates 511 of the inner screen box 500 are fixed between the upper flange 420 of the box cover 400 and the lower flange 230 of the outer screen box 200 through the snap-fit ​​components 700.

[0033] Furthermore, a material guide pipe 610 is provided at the lower end of the first discharge port and the second discharge port to facilitate the collection or turnover of the screened materials.

[0034] Furthermore, an escape space 240 for the material guide pipe 610 to pass through is provided at one end of the bottom plate 210 away from the feed port 410, thereby reducing the space occupied by the linear vibrating screen.

[0035] Further, the screen box 200 includes a front side plate 250, which is disposed at the front opening of the outer screen box 200. The front side plate 250 is used to seal the screen box 200 to prevent dust from overflowing during the screening process, and also to reduce noise generated during the screening process.

[0036] Furthermore, if Figure 6As shown, the fastening assembly 700 includes a first fastening member 710, a second fastening member 720, a handle 730 and a connecting rod 740. The first fastening member 710 is fixed to the outer side of the box cover 400, and the first fastening member 710 is provided with a fastening groove 711. The second fastening member 720 is fixed to the outer side of the screen box 200, and the second fastening member 720 is provided with a first rotating shaft 721. One end of the handle 730 is connected to the first rotating shaft 721, and the handle 730 is provided with a second rotating shaft 722. One end of the connecting rod 740 is connected to the second rotating shaft 722, and the other end of the connecting rod 740 can be driven by the rotation of the second rotating shaft 722 to extend into the fastening groove 711. In other embodiments, the first fastener 710 can be fixed to the outside of the screen box 200, and the second fastener 720 can be fixed to the outside of the screen cover, which can also achieve the same effect of fixing the box cover 400 and the screen assembly 500, thereby preventing dust and reducing noise while fixing the screen assembly 500.

[0037] Further, one end of the connecting rod 740 is passed through the second rotating shaft 722, and a limit nut 741 and a fixing nut 742 are screwed on the connecting rod 740, and the limit nut 741 and the fixing nut 742 are respectively arranged on both sides of the second rotating shaft 722. Therefore, the connection position of the connecting rod 740 and the second rotating shaft 722 can be adjusted to adapt to the number of placed screen assemblies 500. The length of the connecting rod 740 from the second rotating shaft 722 to the other end of the connecting rod 740 can be adjusted according to the number of placed screen assemblies 500, so that the box cover 400 and the screen box 200 are sealed more tightly, and the relative sliding between the screen assembly 500 and the screen box 200 is reduced, thereby reducing noise.

[0038] Furthermore, if Figure 4 , Figure 7 As shown, the support plate 530 extends inward from the lower end of the self-supporting plate 512, and the screening net 520 is detachably mounted on the support plate 530. The inner edge of the support plate 530 is provided with a mounting groove 531, and the edge of the screening net 520 is embedded in the mounting groove 531. The support plate 530 is also provided with a fixing mechanism 532 for fixing the screening net 520. By further setting the screening net 520 in a detachable mounting mode, when the screening net 520 is damaged, the adapted screening net 520 can be directly replaced without replacing the entire screening net assembly 500, thereby reducing the use cost of the linear vibrating screen of the present application and also improving the scope of application.

[0039] Furthermore, there are a plurality of fixing mechanisms 532, and the fixing mechanisms 532 include a fixing block 534 disposed on the third rotating shaft 533, and one end of the fixing block 534 away from the third rotating shaft 533 can be rotated to the top of the mounting groove 531. It can be understood that the thickness of the screening net 520 is not greater than the distance from the upper surface of the mounting groove 531 to the lower surface of the fixing block 534, and the screening net 520 is clamped between the upper surface of the mounting groove 531 and the lower surface of the fixing block 534 by the fixing block 534, so as to prevent the screening net 520 from falling off during the screening process.

[0040] Furthermore, a reinforcing rib 535 is provided on the support plate 530 , and the reinforcing rib 535 is arranged at the lower end of the screening net 520 to prevent the screening net 520 from being broken due to excessive weight of the material.

[0041] The above-mentioned quick-change screen linear vibrating screen achieves the effect of multi-level screening of materials by arranging multiple screen assemblies which are installed in the screen box in sequence from bottom to top; when installing the screen assemblies, the ear plates of the multiple screen assemblies are hung on the lower flange of the screen box in sequence, and then each ear plate is fixed between the upper flange of the box cover and the lower flange of the screen box through the snap-fit ​​assembly, thereby fixing the multiple screen assemblies; when replacing, disassembling and installing the screen assembly, the snap-fit ​​assembly is opened, the box cover is removed to take out the screen assembly, thereby achieving the effect of quickly and conveniently replacing multiple screen assemblies, simplifying the operation steps and greatly improving the replacement efficiency.

[0042] It should be noted that the present invention is not limited to the above-mentioned embodiments. According to the creative spirit of the present invention, those skilled in the art may also make other changes. These changes made according to the creative spirit of the present invention should be included in the scope of protection required by the present invention.

Claims

1. A linear vibrating screen with quick screen replacement, characterized in that: The invention comprises a base (100), an outer screen box (200), a vibration motor (300), an inner screen box (500) and a box cover (400), wherein the outer screen box (200) is connected to the base (100) via a shock absorbing spring (110), the vibration motor (300) is arranged on the outer screen box (200), one end of the box cover (400) is provided with a feed port (410), the outer screen box (200) comprises a bottom plate (210) and a surrounding plate (220), the bottom plate (210) is arranged on the inner side of the lower end of the surrounding plate (220), and the inner screen box (500) is provided with a vibration motor (300) on the outer screen box (200). The box (500) comprises a support plate (530), a screening net (520) and a vertical plate (512), wherein the support plate (530) is arranged at the inner lower end of the vertical plate (512), and the screening net (520) is installed on the support plate (530). The outer screen box (200) and the inner screen box (500) are both in the shape of a dustpan with an upper opening and a front opening. The outer side of the upper end of the enclosure (220) is provided with a lower flange (230) extending outward, and the lower end edge of the box cover (400) is provided with an upper flange (420) corresponding to the lower flange (230). ), an outer side of the upper end of the vertical plate (512) is provided with an outwardly extending ear plate (511), an end of the bottom plate (210) away from the feed port (410) is provided with a first discharge port, an end of the support plate (530) away from the feed port (410) is provided with a second discharge port, there are a plurality of inner screen boxes (500), and the plurality of inner screen boxes (500) are sequentially stacked in the outer screen box (200) in the vertical direction, the first discharge port and the plurality of second discharge ports are staggered in the vertical direction, and the first discharge port and the second discharge port are arranged in a staggered manner. A material guide baffle (600) is provided on each side of the opening, and a buckle assembly (700) is provided on the outer screen box (200) and the box cover (400); during assembly, a plurality of the inner screen boxes (500) are stacked in sequence in the outer screen box (200) from the upper opening of the outer screen box (200), and then the box cover (400) is covered, and the ear plates (511) of the inner screen boxes (500) are fixed between the upper flange (420) of the box cover (400) and the lower flange (230) of the outer screen box (200) through the buckle assembly (700).

2. The linear vibrating screen with rapid screen replacement according to claim 1, characterized in that: A material guide pipe (610) is provided at the lower ends of the first discharge port and the second discharge port.

3. The linear vibrating screen with rapid screen replacement according to claim 2, characterized in that: An escape space (240) for the material guide pipe (610) to pass through is provided at one end of the bottom plate (210) away from the material feed port (410).

4. The linear vibrating screen with rapid screen replacement according to claim 1, characterized in that: The screen box (200) comprises a front side plate (250), and the front side plate (250) is arranged at the front opening of the outer screen box (200).

5. The linear vibrating screen with rapid screen replacement according to claim 1, characterized in that: The fastening assembly (700) comprises a first fastening member (710), a second fastening member (720), a handle (730) and a connecting rod (740); the first fastening member (710) is fixed to the outer side of the box cover (400); the first fastening member (710) is provided with a fastening groove (711); the second fastening member (720) is fixed to the outer side of the screen box (200); the second fastening member (720) is provided with a first rotating shaft (721); one end of the handle (730) is connected to the first rotating shaft (721); the handle (730) is provided with a second rotating shaft (722); one end of the connecting rod (740) is connected to the second rotating shaft (722); the other end of the connecting rod (740) extends into the fastening groove (711).

6. The linear vibrating screen with rapid screen replacement according to claim 5, characterized in that: One end of the connecting rod (740) is inserted into the second rotating shaft (722), and a limit nut (741) and a fixing nut (742) are screwed onto the connecting rod (740), and the limit nut (741) and the fixing nut (742) are respectively arranged on two sides of the second rotating shaft (722).

7. The linear vibrating screen with rapid screen replacement according to claim 1, characterized in that: The screening net (520) is detachably mounted on the support plate (530); an inner edge of the support plate (530) is provided with a mounting groove (531); an edge of the screening net (520) is embedded in the mounting groove (531); and a fixing mechanism (532) for fixing the screening net (520) is also provided on the support plate (530).

8. The linear vibrating screen with rapid screen replacement according to claim 7, characterized in that: The fixing mechanism (532) comprises a third rotating shaft (533) and a fixing block (534) arranged on the third rotating shaft (533); one end of the fixing block (534) away from the third rotating shaft (533) can be rotated to the top of the installation groove (531).

9. The linear vibrating screen with rapid screen replacement according to claim 7, characterized in that: The support plate (530) is provided with reinforcing ribs (535).

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