A maintenance-friendly screen deck assembly for a heavy-duty screening station

Abstract

The utility model relates to the technical field of screening station, concretely relates to a convenient maintenance formula screen plate subassembly for heavy screening station, including screening station ontology and screen plate subassembly, the screen plate subassembly includes left wallboard assembly and right wallboard assembly, be provided with four groups of adjusting structure between left wallboard assembly and right wallboard assembly, the inside surface of left wallboard assembly and right wallboard assembly is fixedly connected with a group of two -layer screen frame each, and two groups two -layer screen frame between setting has two -layer screen cloth. The utility model sets up adjusting structure, need not to remove grate screen plate first again to carry out the replacement to two -layer screen cloth, the maintenance of screen cloth is more convenient, sets up a layer of screen screen plate chassis, outer frame and grate screen plate, when the stone block rolls down on the grate screen plate, the angle of lift of grate screen plate can slow down the time of rolling down, is favorable to the quick shake -off flow of the soil or small material that sticks on the stone block, increases screening rate.

Description

Technical Field

[0001] This utility model belongs to the field of screening station technology, specifically relating to a maintenance-friendly screen plate assembly for heavy-duty screening stations. Background Technology

[0002] Tracked mobile crushing and screening equipment is one of the key pieces of equipment in quarries, construction waste treatment, and mineral mining. In terms of screening equipment, existing tracked mobile crushing and screening stations have relatively simple functions. Different equipment is needed for screening materials of different sizes. For example, existing technologies require two different screening station products to achieve the two working conditions of screening and crushing mixed raw materials of soil and stones before crushing and screening and crushing finished aggregates.

[0003] Traditional tracked mobile equipment requires operators to enter the screen box to replace screens. Replacing a two-layer screen necessitates removing the first layer, then disassembling the locking mechanism of the second layer before replacing it, and finally installing the second layer before installing the next layer. The internal space of the screen box is very confined, making maintenance extremely difficult. Both replacement and maintenance require significant time and manpower. To address this, we propose a maintainable screen plate assembly for heavy-duty screening plants. Utility Model Content

[0004] To overcome the aforementioned technical problems, the purpose of this utility model is to provide a maintenance-friendly screen plate assembly for heavy-duty screening stations. This addresses the issues raised in the background section regarding the traditional tracked mobile equipment's screen replacement process. Specifically, it requires operators to enter the screen box to replace screens, and replacing two layers of screens necessitates first removing one layer, then disassembling the locking components of the second layer before replacement, and finally installing the second layer before installing the next. Furthermore, the screen box's internal space is very limited, making maintenance extremely difficult and requiring significant time and manpower for both replacement and maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a maintenance-friendly screen plate assembly for a heavy-duty screening station, comprising a screening station body and a screen plate assembly. The screen plate assembly is installed on the top of the screening station body. The screen plate assembly includes a left wall plate assembly and a right wall plate assembly. Spring supports are installed on the side surfaces of the left and right wall plate assemblies. A main shaft excitation assembly is fixedly connected to the side surfaces of the left and right wall plate assemblies. Four sets of adjustment structures are provided between the left and right wall plate assemblies. Each adjustment structure includes two sets of screen tensioning seats. A fixing plate is fixedly connected to the outer surface of the two sets of screen tensioning seats. Sliding grooves are formed on the surface of the two sets of screen tensioning seats. Screen tensioning plates are slidably connected inside the sliding grooves. A slotted pull plate is abutting the surface of the screen tensioning plate, and a tensioning bolt is rotatably connected to the surface of the slotted pull plate. A frame main beam is fixedly connected between the left wall panel assembly and the right wall panel assembly. A layer of screen plate base frame is fixedly connected to the top of the left wall panel assembly and the right wall panel assembly. An outer frame is installed on the top of the layer of screen plate base frame. A grate screen plate is fixedly connected to the surface of the outer frame. A set of two-layer screen frames is fixedly connected to the inner surface of each of the left wall panel assembly and the right wall panel assembly. A crossbeam clamp is fixedly connected to the surface of the two sets of two-layer screen frames. Two layers of screens are arranged between the two sets of two-layer screen frames. A material receiving rubber plate is fixedly connected to the bottom of the left wall panel assembly and the right wall panel assembly. Multiple sets of support rods are fixedly connected between the two sets of two-layer screen frames.

[0006] Preferably, the two ends of the main frame beam are fixedly connected to the left wall panel assembly and the right wall panel assembly, respectively, and the two ends of the main shaft excitation assembly are fixedly connected to the left wall panel assembly and the right wall panel assembly, respectively.

[0007] Preferably, the screen tensioning plate has a first groove at both ends, and the slot pull plate has a second groove on its surface. The slot pull plate is engaged with both ends of the screen tensioning plate through the cooperation of the first groove and the second groove, and the slot pull plate is slidably connected to the outer surface of the screen tensioning seat.

[0008] Preferably, one end of the tensioning bolt penetrates the surface of the slotted pull plate, the other end of the tensioning bolt penetrates the surface of the fixing plate, and a locking nut is provided at the end of the tensioning bolt near the fixing plate.

[0009] Preferably, the left end of the second-layer screen is attached to the surface of the screen tensioning plate, the right end of the second-layer screen is attached to the surface of the crossbeam clamping plate, and the surface of the second-layer screen is in contact with the surface of the support rod.

[0010] Preferably, the outer frame is bolted to the top of the first-layer screen plate base frame, the first-layer screen plate base frame is bolted to the top of the left wall panel assembly and the right wall panel assembly, and the outer frame and the grate screen plate are provided with an included angle of twelve degrees.

[0011] Preferably, multiple sets of grate screen plates are provided on the outer frame, the multiple sets of grate screen plates are equidistant, and the gaps between the multiple sets of grate screen plates are narrower at the bottom and wider at the top.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This easy-to-maintain screen plate assembly for heavy-duty screening stations features an adjustment structure. Through the sliding grooves on the screen tensioning seat, both ends of the screen tensioning plate are inserted into the grooves on both sides. The locking plate engages with both ends of the screen tensioning plate, limiting its movement and preventing wobbling. The right end of the second-layer screen is hooked onto the crossbeam locking plate inside the second-layer screen frame, and the left end is hooked onto the screen tensioning plate. By adjusting and loosening the tensioning bolts on the locking plate, the distance between the locking plate and the fixed plate can be changed, thereby moving the screen tensioning plate and altering the distance between it and the crossbeam locking plate, thus changing the tension of the second-layer screen. This allows for quick tensioning or release of the screen without first removing the grate screen plate and replacing the second-layer screen, making screen maintenance more convenient.

[0014] 2. This easy-to-maintain screen plate assembly for heavy-duty screening stations consists of a screen plate base frame, an outer frame, and grate screen plates. The grate screen plates are designed to be raised 12 degrees on the outer frame and are composed of multiple plates. When stones roll down the grate screen plates, the upward angle of the grate screen plates can slow down the rolling time. The gaps of the grate screen plates adopt a "trumpet mouth" design that is narrow at the bottom and wide at the top, which is conducive to quickly shaking off and circulating the soil or small materials adhering to the stones, increasing the screening rate. The design of multiple steps can increase the impact force of rolling down, which is conducive to the rapid separation of materials. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the sieve plate assembly of this utility model;

[0017] Figure 3 This is a structural cross-sectional view of the two-layer screen, the crossbeam clamping plate, the screen tensioning plate, and the two-layer screen of this utility model;

[0018] Figure 4 This is an exploded view of the sieve plate assembly of this utility model;

[0019] Figure 5 This is an exploded view of the adjusting structure of this utility model;

[0020] Figure 6 This is a top view schematic diagram of the structure of the outer frame and the grate screen plate of this utility model.

[0021] In the diagram: 1. Screening station body; 2. Screen plate assembly; 21. Left wall panel assembly; 22. Right wall panel assembly; 23. Spring support; 24. Main shaft vibration assembly; 25. Adjustment structure; 251. Screen tensioning seat; 252. Fixing plate; 253. Slide groove; 254. Screen tensioning plate; 255. Slot pull plate; 256. Tensioning bolt; 26. Frame main beam; 27. First-layer screen plate base frame; 271. Outer frame; 272. Grate screen plate; 28. Second-layer screen frame; 281. Crossbeam clamping plate; 29. ​​Second-layer screen; 210. Receiving rubber plate; 211. Support rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 One embodiment provided by this utility model:

[0024] A maintenance-friendly screen plate assembly for a heavy-duty screening station includes a screening station body 1 and a screen plate assembly 2. The screen plate assembly 2 is installed on top of the screening station body 1. The screen plate assembly 2 includes a left wall plate assembly 21 and a right wall plate assembly 22. Spring supports 23 are installed on the side surfaces of the left wall plate assembly 21 and the right wall plate assembly 22. A main shaft excitation assembly 24 is fixedly connected to the side surfaces of the left wall plate assembly 21 and the right wall plate assembly 22. Four sets of adjustment structures 25 are provided between the left wall plate assembly 21 and the right wall plate assembly 22. The adjustment structure 25 includes two sets of screen tension seats 251. Fixed plates 252 are fixedly connected to the outer surfaces of the two sets of screen tension seats 251. Sliding grooves 253 are formed on the surfaces of the two sets of screen tension seats 251, and screens are slidably connected inside the sliding grooves 253. Tensioning plate 254, with slotted pull plate 255 abutting against the surface of screen tensioning plate 254, and tensioning bolt 256 rotatably connected to the surface of slotted pull plate 255. A frame main beam 26 is fixedly connected between left wall panel assembly 21 and right wall panel assembly 22. A layer of screen plate base frame 27 is fixedly connected to the top of left wall panel assembly 21 and right wall panel assembly 22. An outer frame 271 is installed on the top of the layer of screen plate base frame 27. A grate screen plate 272 is fixedly connected to the surface of the outer frame 271. A set of two-layer screen frames 28 is fixedly connected to the inner surfaces of left wall panel assembly 21 and right wall panel assembly 22. A crossbeam clamping plate 281 is fixedly connected to the surfaces of the two sets of two-layer screen frames 28. A two-layer screen 29 is set between the two sets of two-layer screen frames 28. Left wall panel assembly 21 and... A receiving rubber plate 210 is fixedly connected to the bottom of the right wall panel assembly 22. Multiple support rods 211 are fixedly connected between the two sets of double-layer screen frames 28. An adjustment structure 25 is provided. Through the sliding groove 253 opened on the screen tensioning seat 251, the two ends of the screen tensioning plate 254 are respectively inserted into the sliding groove 253 on both sides. The slot pull plate 255 is locked into the two ends of the screen tensioning plate 254 to limit the screen tensioning plate 254 and prevent the screen tensioning plate 254 from shaking. The right end of the double-layer screen 29 is hooked onto the crossbeam clamping plate 281 inside the double-layer screen frame 28, and the left end is hooked onto the screen tensioning plate 254. By adjusting and loosening the tensioning bolt 256 on the slot pull plate 255, the distance between the slot pull plate 255 and the fixed plate 252 can be changed, thereby driving the screen to tension. The tension plate 254 moves, changing the distance between the screen tensioning plate 254 and the crossbeam clamping plate 281, thereby changing the tension of the second-layer screen 29. This allows for quick tensioning or release of the screen without first removing the grate screen plate 272 and then replacing the second-layer screen 29, making screen maintenance more convenient. The system consists of a screen plate base frame 27, an outer frame 271, and grate screen plates 272. The grate screen plates 272 are designed to be raised 12 degrees on the outer frame 271, and are composed of multiple pieces. When stones roll off the grate screen plates 272, the upward angle of the grate screen plates 272 slows down the rolling time. The gaps in the grate screen plates 272 are designed with a narrow bottom and a wide top, creating a "trumpet mouth" shape, which helps to quickly shake off and allow small materials adhering to the stones to flow freely.Increasing the screening rate and using a multi-step design can amplify the impact force of the rolling material, facilitating rapid separation.

[0025] Furthermore, the two ends of the frame main beam 26 are fixedly connected to the left wall panel assembly 21 and the right wall panel assembly 22 respectively, and the two ends of the main shaft vibration assembly 24 are fixedly connected to the left wall panel assembly 21 and the right wall panel assembly 22 respectively. The overall strength can be enhanced through the frame main beam 26 and the main shaft vibration assembly 24. Vibration screening is performed through the main shaft vibration assembly 24. The main shaft vibration assembly 24 is existing technology and will not be described in detail hereafter.

[0026] Furthermore, the screen tensioning plate 254 has a first groove at both ends, and the slot pull plate 255 has a second groove on its surface. The slot pull plate 255 is engaged with both ends of the screen tensioning plate 254 through the cooperation of the first groove and the second groove. The slot pull plate 255 is slidably connected to the outer surface of the screen tensioning seat 251. The slot pull plate 255 is engaged with the screen tensioning plate 254 through the first groove and the second groove, thereby limiting the movement of the screen tensioning plate 254 and preventing the screen tensioning plate 254 from shaking.

[0027] Furthermore, one end of the tension bolt 256 penetrates the surface of the slot pull plate 255, and the other end of the tension bolt 256 penetrates the surface of the fixing plate 252. A locking nut is provided at the end of the tension bolt 256 near the fixing plate 252. Adjusting the tension bolt 256 changes the distance between the slot pull plate 255 and the fixing plate 252, thereby changing the position of the screen tension plate 254 in the slide groove 253 and changing the distance between the screen tension plate 254 and the crossbeam clamping plate 281.

[0028] Furthermore, the left end of the second-layer screen 29 is attached to the surface of the screen tensioning plate 254, and the right end of the second-layer screen 29 is attached to the surface of the crossbeam clamping plate 281. The surface of the second-layer screen 29 is in contact with the surface of the support rod 211. By adjusting and loosening the tensioning bolts 256 on the slot pull plate 255, the distance between the slot pull plate 255 and the fixed plate 252 can be changed, thereby driving the screen tensioning plate 254 to move and changing the distance between the screen tensioning plate 254 and the crossbeam clamping plate 281, thereby changing the tension of the second-layer screen 29. The second-layer screen 29 is supported by the support rod 211.

[0029] Furthermore, the outer frame 271 is bolted to the top of the first-layer screen plate base frame 27, and the first-layer screen plate base frame 27 is bolted to the top of the left wall panel assembly 21 and the right wall panel assembly 22. The outer frame 271 and the grate screen plate 272 are provided with an angle of twelve degrees. When stones roll on the grate screen plate 272, the upward angle of the grate screen plate 272 can slow down the rolling time.

[0030] Furthermore, multiple sets of grate screen plates 272 are provided on the outer frame 271. The multiple sets of grate screen plates 272 are equidistantly arranged, and the gaps between the multiple sets of grate screen plates 272 are narrow at the bottom and wide at the top, which is conducive to quickly shaking off and circulating the soil or small materials adhering to the stones, thereby increasing the screening rate.

[0031] Working principle: The two ends of the screen tensioning plate 254 are inserted into the grooves 253 on both sides of the screen tensioning seat 251. The locking plate 255 engages with both ends of the screen tensioning plate 254, limiting its movement and preventing it from shaking. The right end of the second-layer screen 29 is hooked onto the crossbeam locking plate 281 inside the second-layer screen frame 28, and the left end is hooked onto the screen tensioning plate 254. By adjusting and loosening the tensioning bolts 256 on the locking plate 255, the distance between the locking plate 255 and the fixed plate 252 can be changed, thereby moving the screen tensioning plate 254 and changing its tension. The distance between 254 and the crossbeam clamp 281 changes the tension of the second-layer screen 29, allowing for quick tightening or loosening of the screen, making screen maintenance more convenient. The grate screen 272 adopts an upward 12-degree design on the outer frame 271, and the grate screen 272 is composed of multiple pieces. When stones roll on the grate screen 272, the upward angle of the grate screen 272 can slow down the rolling time. The gap of the grate screen 272 adopts a "trumpet mouth" design with a narrow bottom and a wide top, which is conducive to quickly shaking off and circulating the mud or small materials adhering to the stones, increasing the screening rate. The design of multiple steps can increase the impact force of rolling, which is conducive to the rapid separation of materials.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A maintenance-friendly screen plate assembly for a heavy-duty screening station, comprising a screening station body (1) and a screen plate assembly (2), characterized in that: The screen plate assembly (2) is installed on the top of the screening station body (1). The screen plate assembly (2) includes a left wall plate assembly (21) and a right wall plate assembly (22). Spring supports (23) are installed on the side surfaces of the left wall plate assembly (21) and the right wall plate assembly (22). A main shaft excitation assembly (24) is fixedly connected to the side surfaces of the left wall plate assembly (21) and the right wall plate assembly (22). A space is provided between the left wall plate assembly (21) and the right wall plate assembly (22). There are four sets of adjustment structures (25), each set including two sets of screen tensioning seats (251). A fixing plate (252) is fixedly connected to the outer surface of each of the two sets of screen tensioning seats (251). A sliding groove (253) is formed on the surface of each of the two sets of screen tensioning seats (251). A screen tensioning plate (254) is slidably connected inside the sliding groove (253). A slotted pull plate (255) is abutted against the surface of the screen tensioning plate (254). The surface of the left wall panel assembly (21) is rotatably connected with tension bolts (256). A frame main beam (26) is fixedly connected between the left wall panel assembly (21) and the right wall panel assembly (22). A layer of sieve plate base frame (27) is fixedly connected to the top of the left wall panel assembly (21) and the right wall panel assembly (22). An outer frame (271) is installed on the top of the layer of sieve plate base frame (27). A grate sieve plate (272) is fixedly connected to the surface of the outer frame (271). The left wall panel assembly (21) is rotatably connected with tension bolts (256). A frame main beam (26) is fixedly connected between the left wall panel assembly (21) and the right wall panel assembly (22). 1) A set of two-layer screen frames (28) is fixedly connected to the inner surface of the right wall panel assembly (22). A crossbeam clamp plate (281) is fixedly connected to the surface of the two sets of two-layer screen frames (28). A two-layer screen mesh (29) is provided between the two sets of two-layer screen frames (28). A material receiving rubber plate (210) is fixedly connected to the bottom of the left wall panel assembly (21) and the right wall panel assembly (22). Multiple sets of support rods (211) are fixedly connected between the two sets of two-layer screen frames (28).

2. The easy-to-maintain screen plate assembly for heavy-duty screening stations according to claim 1, characterized in that: The two ends of the main beam (26) of the frame are fixedly connected to the left wall panel assembly (21) and the right wall panel assembly (22) respectively, and the two ends of the main shaft excitation assembly (24) are fixedly connected to the left wall panel assembly (21) and the right wall panel assembly (22) respectively.

3. The easy-to-maintain screen plate assembly for heavy-duty screening stations according to claim 1, characterized in that: The screen tensioning plate (254) has a groove 1 at both ends, and the slot pull plate (255) has a groove 2 on its surface. The slot pull plate (255) is engaged with both ends of the screen tensioning plate (254) by the cooperation of the groove 1 and the groove 2. The slot pull plate (255) is slidably connected to the outer surface of the screen tensioning seat (251).

4. The easy-to-maintain screen plate assembly for heavy-duty screening stations according to claim 1, characterized in that: One end of the tension bolt (256) penetrates the surface of the slot pull plate (255), and the other end of the tension bolt (256) penetrates the surface of the fixing plate (252). A locking nut is provided at the end of the tension bolt (256) near the fixing plate (252).

5. A maintenance-friendly screen plate assembly for heavy-duty screening stations according to claim 1, characterized in that: The left end of the second-layer screen (29) is attached to the surface of the screen tensioning plate (254), the right end of the second-layer screen (29) is attached to the surface of the crossbeam clamping plate (281), and the surface of the second-layer screen (29) is in contact with the surface of the support rod (211).

6. A maintenance-friendly screen plate assembly for heavy-duty screening stations according to claim 1, characterized in that: The outer frame (271) is bolted to the top of the first-layer screen plate base frame (27), and the first-layer screen plate base frame (27) is bolted to the top of the left wall plate assembly (21) and the right wall plate assembly (22). The outer frame (271) and the grate screen plate (272) are provided with an angle of twelve degrees.

7. A maintenance-friendly screen plate assembly for heavy-duty screening stations according to claim 1, characterized in that: The sieve bar (272) is provided in multiple sets on the outer frame (271). The multiple sets of sieve bar (272) are equidistant from each other, and the gap between the multiple sets of sieve bar (272) is narrow at the bottom and wide at the top.

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