Lump coal screening device

Abstract

The lump coal screening device comprises a screening box and a plurality of screening bars, the screening box is obliquely arranged, the screening bars are arranged at the upper end of the screening box, a plurality of first mounting assemblies are slidably arranged at the upper end of the left portion of the screening box, and a plurality of second mounting assemblies are slidably arranged at the upper end of the right portion of the screening box; the screen rod is arranged between the first mounting assembly and the second mounting assembly, a locking assembly is arranged on the first mounting assembly, a third mounting plate is fixedly arranged on the screen box, and the locking assembly is connected with the third mounting plate; through the arrangement of the first mounting assembly, the second mounting assembly and the locking assembly, a worker can conveniently adjust the gaps of the screen bars according to actual use requirements so as to change the screening granularity, the device applicability is improved, the worker can conveniently disassemble the screen bars to overhaul or replace the abraded screen bars, and the use convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of screening equipment, and in particular to a lump coal screening device. Background Art

[0002] In the coal production process, the finished coal blocks produced after crushing are of different sizes. In order to ensure that the particle size of the coal blocks is uniform, the coal blocks need to be screened. When the existing coal block screening device is in use, the coal blocks fall onto the screen surface, and the coal blocks with the particle size that meets the requirements slide along the screen surface, while the coal blocks with the particle size that does not meet the requirements pass through the gap between the screen rods and fall down, thereby realizing the screening of the coal blocks. However, the screen rods of the current screening device are mostly fixed and welded, which is not convenient for adjusting the gap between the screen rods to change the screening particle size according to actual use needs. The device has poor applicability and is not convenient for disassembly to inspect or replace worn screen rods, and is not convenient to use. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a lump coal screening device, which can solve the technical problems that the screen rods of the current screening device are mostly fixed and welded, which makes it inconvenient to adjust the gap between the screen rods to change the screening particle size according to actual use requirements, the device has poor applicability, and is not convenient to disassemble for inspection or replacement of worn screen rods, and is not convenient to use.

[0004] An embodiment of the present application provides a lump coal screening device, comprising a screen box and a plurality of screen rods, the screen box being arranged at an angle, the screen rods being arranged at the upper end of the screen box, a plurality of first mounting assemblies being slidingly arranged at the upper left end of the screen box, and a plurality of second mounting assemblies being slidingly arranged at the upper right end of the screen box, the screen rods being arranged between the first mounting assemblies and the second mounting assemblies, a locking assembly being arranged on the first mounting assembly, a third mounting plate being fixedly arranged on the screen box, and the locking assembly being connected to the third mounting plate.

[0005] Among them, the first mounting assembly includes a first mounting plate, a first slider, a first screw and an abutment plate, a first slide groove is opened at the upper left end of the screen box, the first slider is fixedly set on the first mounting plate, and the first slider is slidingly connected with the first slide groove, the first screw thread passes through the first mounting plate, the abutment plate is fixedly set on the first screw, the screen rod can be placed on the first mounting plate, and the abutment plate can be fitted with the screen rod.

[0006] Among them, the second mounting assembly includes a second mounting plate and a second slider, a second slide groove is opened at the upper right end of the screen box, the second slider is fixedly set on the second mounting plate, and the second slider is slidingly connected to the second slide groove, and the screen rod can be placed on the second mounting plate.

[0007] In which, the locking assembly includes a fourth mounting plate, a second screw, a first nut, a second nut, a first clamping plate and a second clamping plate, the fourth mounting plate is fixedly connected to the first mounting plate, the fourth mounting plate is provided with a third sliding groove, the second screw is rotatably arranged in the third sliding groove through a bearing, and the second screw extends to the outside of the fourth mounting plate, the first nut and the second nut are both threadedly arranged on the second screw, and the first nut and the second nut are both limitedly slidably connected to the third sliding groove, the thread of the first nut is opposite to the thread of the second nut, the first clamping plate is arranged on the left of the third mounting plate, the second clamping plate is arranged on the right of the third mounting plate, the first clamping plate is fixedly connected to the first nut, and the second clamping plate is fixedly connected to the second nut.

[0008] The first mounting assembly further includes a first pressing plate and a first elastic member. The first elastic member is pre-pressed between the first pressing plate and the first mounting plate. The first pressing plate can fit the screen rod.

[0009] The second mounting assembly further includes a second pressing plate and a second elastic member, the second elastic member is pre-pressed between the second pressing plate and the second mounting plate, and the second pressing plate can fit the sieve rod.

[0010] Wherein, a handle is fixedly provided on one end of the first screw rod away from the abutting plate and one end of the second screw rod away from the fourth mounting plate.

[0011] Wherein, a support rod is fixedly provided at the middle upper end of the screen box, and the screen rod can be fitted with the support rod.

[0012] Wherein, baffles are fixedly provided at the front and rear ends of the upper part of the screen box.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a lump coal screening device. When in use, the screen rod is installed and fixed between the first mounting assembly and the second mounting assembly, and then the position of the screen rod can be moved according to actual use requirements. The first mounting assembly and the third mounting plate are then locked and fixed by the locking assembly, so that the screen rod can be locked and fixed on the screen box, and then the lump coal is put onto the screen surface. The lump coal with the particle size meeting the requirements slides along the screen surface, and the lump coal with the particle size not meeting the requirements passes through the gap of the screen rod and falls, thereby realizing the screening of the lump coal. The present application provides a first mounting assembly, a second mounting assembly and a locking assembly, so that the staff can adjust the gap of the screen rod to change the screening particle size according to actual use requirements, thereby improving the applicability of the device, and also making it convenient for the staff to disassemble to inspect or replace worn screen rods, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic cross-sectional view of the overall main structure in some embodiments of the present application;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at point B;

[0019] Figure 4 Schematic diagram of the overall top view structure in some embodiments of the present application;

[0020] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at point C;

[0021] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at D.

[0022] The reference numerals are:

[0023] 1. Screen box; 11. Third mounting plate; 12. First chute; 13. Second chute; 14. Support rod; 15. Baffle;

[0024] 2. Screen rod;

[0025] 3. First mounting assembly; 31. First mounting plate; 32. First slider; 33. First screw; 34. Abutment plate; 35. First pressure plate; 36. First elastic member;

[0026] 4. Second mounting assembly; 41. Second mounting plate; 42. Second slider; 43. Second pressure plate; 44. Second elastic member;

[0027] 5. Locking assembly; 51. Fourth mounting plate; 52. Second screw; 53. First screw sleeve; 54. Second screw sleeve; 55. First clamping plate; 56. Second clamping plate; 57. Third slide;

[0028] 6. Handle. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0034] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0035] like Figures 1 to 6As shown, an embodiment of the present application provides a lump coal screening device, including a screen box 1 and a plurality of screen rods 2. The screen box 1 is arranged at an angle, and the screen rods 2 are arranged at the upper end of the screen box 1. A plurality of first mounting components 3 are slidingly arranged on the upper left end of the screen box 1, and a plurality of second mounting components 4 are slidingly arranged on the upper right end of the screen box 1. The screen rods 2 are arranged between the first mounting components 3 and the second mounting components 4. A locking component 5 is arranged on the first mounting component 3. A third mounting plate 11 is fixedly arranged on the screen box 1, and the locking component 5 is connected to the third mounting plate 11.

[0036] During use, the screen rod 2 is installed and fixed between the first mounting assembly 3 and the second mounting assembly 4, and then the position of the screen rod 2 can be moved according to actual use requirements, and then the first mounting assembly 3 and the third mounting plate 11 are locked and fixed by the locking assembly 5, so that the screen rod 2 can be locked and fixed on the screen box 1, and then the coal blocks are put onto the screen surface, and the coal blocks with the required particle size slide along the screen surface, and the coal blocks with the particle size not meeting the requirements pass through the gap of the screen rod 2 and fall, thereby realizing the screening of the coal blocks; the present application provides a first mounting assembly 3, a second mounting assembly 4 and a locking assembly 5, so that the staff can adjust the gap of the screen rod 2 to change the screening particle size according to actual use requirements, thereby improving the applicability of the device, and also making it convenient for the staff to disassemble to inspect or replace the worn screen rod 2, thereby improving the convenience of use.

[0037] like Figures 1 to 6 As shown, in this embodiment, the first mounting assembly 3 includes a first mounting plate 31, a first slider 32, a first screw 33 and an abutment plate 34. A first slide groove 12 is opened at the upper left end of the screen box 1. The first slider 32 is fixedly arranged on the first mounting plate 31, and the first slider 32 is slidingly connected with the first slide groove 12. The first screw 33 is threaded through the first mounting plate 31. The abutment plate 34 is fixedly arranged on the first screw 33. The screen rod 2 can be placed in contact with the first mounting plate 31, and the abutment plate 34 can be in contact with the screen rod 2.

[0038] When in use, the right end of the sieve rod 2 is installed on the second mounting assembly 4, and then the left end of the sieve rod 2 is placed on the first mounting plate 31, and then the first screw 33 is rotated. Under the threaded cooperation between the first screw 33 and the first mounting plate 31, the first screw 33 drives the abutment plate 34 to move to abut against the sieve rod 2. At this time, the left end of the sieve rod 2 abuts against the abutment plate 34, and the right end of the sieve rod 2 abuts against the second mounting assembly 4, and the sieve rod 2 can be installed and fixed between the first mounting plate 31 and the second mounting assembly 4.

[0039] like Figures 1 to 6As shown, in this embodiment, the second mounting assembly 4 includes a second mounting plate 41 and a second slider 42. A second slide groove 13 is opened at the upper right end of the screen box 1. The second slider 42 is fixedly arranged on the second mounting plate 41, and the second slider 42 is slidingly connected with the second slide groove 13 in a limited position. The screen rod 2 can be placed on the second mounting plate 41.

[0040] When in use, the right end of the sieve rod 2 is placed on the second mounting plate 41, and then the left end of the sieve rod 2 is placed on the first mounting plate 31, and then the first screw 33 is rotated. Under the threaded cooperation between the first screw 33 and the first mounting plate 31, the first screw 33 drives the abutment plate 34 to move to abut against the sieve rod 2. At this time, the left end of the sieve rod 2 abuts against the abutment plate 34, and the right end of the sieve rod 2 abuts against the second mounting plate 41, and the sieve rod 2 can be installed and fixed between the first mounting plate 31 and the second mounting plate 41.

[0041] like Figures 1 to 6 As shown, in this embodiment, the locking assembly 5 includes a fourth mounting plate 51, a second screw 52, ​​a first screw sleeve 53, a second screw sleeve 54, a first clamping plate 55 and a second clamping plate 56. The fourth mounting plate 51 is fixedly connected to the first mounting plate 31. The fourth mounting plate 51 is provided with a third sliding groove 57. The second screw 52 is rotatably arranged in the third sliding groove 57 through a bearing, and the second screw 52 extends to the outside of the fourth mounting plate 51. The first screw sleeve 53 and the second screw sleeve 54 are both threadedly sleeved on the second screw 52, ​​and the first screw sleeve 53 and the second screw sleeve 54 are both limitedly slidably connected with the third sliding groove 57. The thread of the first screw sleeve 53 is opposite to the thread of the second screw sleeve 54. The first clamping plate 55 is arranged on the left side of the third mounting plate 11, and the second clamping plate 56 is arranged on the right side of the third mounting plate 11. The first clamping plate 55 is fixedly connected to the first screw sleeve 53, and the second clamping plate 56 is fixedly connected to the second screw sleeve 54.

[0042] During use, after the screen rod 2 is installed and fixed between the first mounting plate 31 and the second mounting plate 41, the position of the screen rod 2 can be moved according to actual use requirements. Under the sliding cooperation of the first slider 32 and the first slide groove 12, and the sliding cooperation of the second slider 42 and the second slide groove 13, the screen rod 2 moves and drives the first mounting plate 31 and the second mounting plate 41 to move synchronously. After moving the screen rod 2 to the target position, the second screw 52 is rotated to drive the first screw sleeve 53 and the second screw sleeve 54 to move toward each other, thereby driving the first clamping plate 55 and the second clamping plate 56 to move toward each other, until the first clamping plate 55 and the second clamping plate 56 are both in contact with the third mounting plate 11, the fourth mounting plate 51 and the third mounting plate 11 can be locked and fixed, that is, the first mounting plate 31 and the screen box 1 are locked and fixed, thereby locking the screen rod 2 on the screen box 1.

[0043] like Figures 1 to 6As shown, in this embodiment, the first mounting assembly 3 further includes a first pressing plate 35 and a first elastic member 36 . The first elastic member 36 is pre-pressed between the first pressing plate 35 and the first mounting plate 31 . The first pressing plate 35 can fit with the screen rod 2 .

[0044] The first elastic member 36 is a spring; when in use, the first pressing plate 35 is pulled upward, at which time the first elastic member 36 is stretched, and then the left end of the screen rod 2 is placed on the first mounting plate 31, and then the first pressing plate 35 is released. Under the elastic force of the first elastic member 36, the first elastic member 36 drives the first pressing plate 35 to press the screen rod 2 downward; the coordinated use of the first elastic member 36 and the first pressing plate 35 can further lock and fix the screen rod 2 to prevent the screen rod 2 from shifting or falling off when screening lump coal, thereby improving the stability of use.

[0045] like Figures 1 to 6 As shown, in this embodiment, the second mounting assembly 4 further includes a second pressing plate 43 and a second elastic member 44 . The second elastic member 44 is pre-pressed between the second pressing plate 43 and the second mounting plate 41 . The second pressing plate 43 can fit the screen rod 2 .

[0046] The second elastic member 44 is a spring; when in use, the second pressing plate 43 is pulled upwards, at which time the second elastic member 44 is stretched, and then the right end of the screen rod 2 is placed on the second mounting plate 41, and then the second pressing plate 43 is released. Under the elastic force of the second elastic member 44, the second elastic member 44 drives the second pressing plate 43 to press the screen rod 2 downward; the coordinated use of the second elastic member 44 and the second pressing plate 43 can further lock and fix the screen rod 2 to prevent the screen rod 2 from shifting or falling off when screening lump coal, thereby improving the stability of use.

[0047] like Figures 1 to 6 As shown, in this embodiment, a handle 6 is fixedly provided on one end of the first screw 33 away from the abutment plate 34 and one end of the second screw 52 away from the fourth mounting plate 51; the handle 6 facilitates the staff to rotate the first screw 33 or the second screw 52, ​​thereby improving the convenience of use.

[0048] like Figure 1 and 4 As shown, in this embodiment, a support rod 14 is fixedly provided at the middle upper end of the screen box 1, and the screen rod 2 can be fitted with the support rod 14; the support rod 14 supports the screen rod 2 and improves the stability in use.

[0049] like Figure 1 and 4 As shown, in this embodiment, baffles 15 are fixedly provided at the front and rear ends of the upper portion of the screen box 1; the baffles 15 can prevent the coal blocks from falling from the front and rear sides of the screen box 1, thereby improving the stability in use.

[0050] Working principle: When the lump coal screening device provided by the present application is in use, the second pressing plate 43 is pulled upward, at which time the second elastic member 44 is stretched, and then the right end of the screen rod 2 is placed on the second mounting plate 41, and then the second pressing plate 43 is released. Under the elastic force of the second elastic member 44, the second elastic member 44 drives the second pressing plate 43 to press the screen rod 2 downward, and then the first pressing plate 35 is pulled upward, at which time the first elastic member 36 is stretched, and then the left end of the screen rod 2 is placed on the first mounting plate 31, and then released. The first pressing plate 35, under the elastic force of the first elastic member 36, drives the first pressing plate 35 to press the screen rod 2 downward, and then rotates the first screw 33. Under the threaded cooperation between the first screw 33 and the first mounting plate 31, the first screw 33 drives the abutting plate 34 to move to abut against the screen rod 2. At this time, the left end of the screen rod 2 abuts against the abutting plate 34, and the right end of the screen rod 2 abuts against the second mounting plate 41, so that the screen rod 2 can be installed and fixed between the first mounting plate 31 and the second mounting plate 41;

[0051] After the screen rod 2 is installed and fixed between the first mounting plate 31 and the second mounting plate 41, the position of the screen rod 2 can be moved according to actual use requirements. Under the sliding cooperation of the first slider 32 and the first slide groove 12, and the sliding cooperation of the second slider 42 and the second slide groove 13, the screen rod 2 moves and drives the first mounting plate 31 and the second mounting plate 41 to move synchronously. After the screen rod 2 is moved to the target position, the second screw 52 is rotated to drive the first screw sleeve 53 and the second screw sleeve 54 to move toward each other, thereby driving the first clamping plate 55 and the second clamping plate 56 to move toward each other, until the first clamping plate 55 and the second clamping plate 56 are both in contact with the third mounting plate 11, the fourth mounting plate 51 and the third mounting plate 11 can be locked and fixed, that is, the first mounting plate 31 and the screen box 1 are locked and fixed, thereby locking and fixing the screen rod 2 on the screen box 1;

[0052] Then the coal lump is put onto the screen surface, and the coal lump with the required particle size slides along the screen surface, while the coal lump with the unsatisfactory particle size passes through the gap of the screen rod 2 and falls, thereby realizing the screening process of the coal lump.

[0053] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A lump coal screening device, characterized in that: The invention comprises a screen box (1) and a plurality of screen rods (2), wherein the screen box (1) is arranged at an angle, the screen rods (2) are arranged at the upper end of the screen box (1), a plurality of first mounting assemblies (3) are slidably arranged at the upper left end of the screen box (1), and a plurality of second mounting assemblies (4) are slidably arranged at the upper right end of the screen box (1), the screen rods (2) are arranged between the first mounting assemblies (3) and the second mounting assemblies (4), a locking assembly (5) is arranged on the first mounting assembly (3), a third mounting plate (11) is fixedly arranged on the screen box (1), and the locking assembly (5) is connected to the third mounting plate (11).

2. The lump coal screening device according to claim 1, characterized in that: The first mounting assembly (3) includes a first mounting plate (31), a first slider (32), a first screw (33) and an abutment plate (34); a first chute (12) is provided at the upper left end of the screen box (1); the first slider (32) is fixedly arranged on the first mounting plate (31), and the first slider (32) is connected to the first chute (12) in a limited sliding manner; the first screw (33) is threadedly passed through the first mounting plate (31); the abutment plate (34) is fixedly arranged on the first screw (33); the screen rod (2) can be placed on the first mounting plate (31), and the abutment plate (34) can be in contact with the screen rod (2).

3. The lump coal screening device according to claim 1, characterized in that: The second mounting assembly (4) includes a second mounting plate (41) and a second slider (42). A second chute (13) is provided at the upper right end of the screen box (1). The second slider (42) is fixedly arranged on the second mounting plate (41), and the second slider (42) is connected to the second chute (13) in a limited sliding manner. The screen rod (2) can be placed on the second mounting plate (41).

4. The lump coal screening device according to claim 2, characterized in that: The locking assembly (5) includes a fourth mounting plate (51), a second screw rod (52), a first screw sleeve (53), a second screw sleeve (54), a first clamping plate (55) and a second clamping plate (56). The fourth mounting plate (51) is fixedly connected to the first mounting plate (31). The fourth mounting plate (51) is provided with a third sliding groove (57). The second screw rod (52) is rotatably arranged in the third sliding groove (57) through a bearing, and the second screw rod (52) extends to the outside of the fourth mounting plate (51). The first screw sleeve (53) and the second screw sleeve (54) are both The threaded sleeve is arranged on the second screw rod (52), and the first threaded sleeve (53) and the second threaded sleeve (54) are both connected to the third slide groove (57) in a limited sliding manner. The thread of the first threaded sleeve (53) is opposite to the thread of the second threaded sleeve (54). The first clamping plate (55) is arranged on the left side of the third mounting plate (11), and the second clamping plate (56) is arranged on the right side of the third mounting plate (11). The first clamping plate (55) is fixedly connected to the first threaded sleeve (53), and the second clamping plate (56) is fixedly connected to the second threaded sleeve (54).

5. The lump coal screening device according to claim 2, characterized in that: The first mounting assembly (3) further comprises a first pressing plate (35) and a first elastic member (36), wherein the first elastic member (36) is pre-pressed between the first pressing plate (35) and the first mounting plate (31), and the first pressing plate (35) can be fitted with the screen rod (2).

6. The lump coal screening device according to claim 3, characterized in that: The second mounting assembly (4) further comprises a second pressing plate (43) and a second elastic member (44), wherein the second elastic member (44) is pre-pressed between the second pressing plate (43) and the second mounting plate (41), and the second pressing plate (43) can fit the sieve rod (2).

7. The lump coal screening device according to claim 4, characterized in that: A handle (6) is fixedly provided on one end of the first screw rod (33) away from the abutting plate (34) and one end of the second screw rod (52) away from the fourth mounting plate (51), respectively.

8. The lump coal screening device according to claim 1, characterized in that: A support rod (14) is fixedly provided at the middle upper end of the screen box (1), and the screen rod (2) can fit in contact with the support rod (14).

9. The lump coal screening device according to claim 1, characterized in that: Baffles (15) are fixedly provided at the front and rear ends of the upper portion of the screen box (1).

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