Improved shaft seal for a roller screen

Abstract

The utility model relates to the technical field of the axle end sealing of roller screen, and proposes an improved roller screen axle end sealing device, which comprises: a box body, a connecting shaft penetratingly and rotatably connected to one side of the box body, a hoop one, a hoop two, an annular plate one, a sealing element one and an annular plate two, the hoop one is moved vertically downward along the box body, the inner side wall of the hoop one is in contact with the sealing element one, the blocking plate on the inner side wall of the hoop one is clamped into the annular groove on the annular plate two and in contact with the sealing element two, the hoop two is moved vertically downward along the box body, the inner side wall of the hoop two is in contact with the sealing element one, the blocking plate on the inner side wall of the hoop two is clamped into the annular groove on the annular plate two and in contact with the sealing element two, the hoop one and the hoop two are tightly installed together by bolts and nuts, the hoop one and the hoop two extrude the sealing element one to realize sealing, dust is not easy to enter the gap between the connecting shaft and the box body, thereby avoiding the problem that dust is easy to enter the gap between the connecting shaft and the box body and cause abrasion.

Description

Technical Field

[0001] This utility model relates to the field of roller screen shaft end sealing technology, specifically to an improved roller screen shaft.

[0002] End sealing device. Background Technology

[0003] The screen surface of a roller screen consists of many parallel rollers with screen discs mounted on them in an alternating pattern. The rollers rotate via sprockets or gears, and their rotation direction is the same as the material flow direction. Because the screen rollers are arranged at different working angles, the material moves faster at higher working angles and slower at lower working angles. When the material moving at these two different speeds converges at a certain point on the screen surface, it begins to move axially, thus ensuring that the material is evenly distributed on the screen surface.

[0004] This achieved the goal of improving screening efficiency.

[0005] A Chinese utility model patent (publication number: CN221869168U) discloses a roller screen housing shaft head sealing device, which significantly improves the sealing effect. The device includes a housing with several rollers inside, each roller having several stacked discs. Corresponding protective plates are fixedly installed on the inner walls of both sides of the housing. Each protective plate has a slot at its bottom. A first clamp is fixedly installed on the side of each protective plate near the inner wall of the housing and at the top of the slot. A second clamp is installed at the bottom of the first clamp. The first and second clamps are connected by bolts and nuts. Mounting holes for bolts are provided on both sides of the first and second clamps. A sealing ring is provided inside each of the first and second clamps. A downward-sloping ramp is provided in the middle of each protective plate. The sealing ring is made of rubber, and its inner diameter is...

[0006] The outer diameter of the shaft is matched, and the bottom of the slot has an opening.

[0007] However, during the implementation of the relevant technology, the following problems were found with the aforementioned roller screen housing shaft head sealing device:

[0008] In the existing technology, there is a lack of a sealing structure between the first and second clamps and the housing, allowing dust to easily enter the rollers.

[0009] To address the problem of wear caused by gaps in the casing, an improved roller screen shaft end sealing design is proposed.

[0010] Sealing device. Utility Model Content

[0011] This utility model proposes an improved roller screen shaft end sealing device, which solves the problem in related technologies where the lack of a sealing structure between the first and second clamps and the housing allows dust to easily enter the gap between the roller and the housing.

[0012] This leads to wear and tear.

[0013] The technical solution of this utility model is as follows: An improved roller screen shaft end sealing device, comprising:

[0014] The housing and the connecting shaft that rotatably connects to one side of the housing;

[0015] Ring plate one, the ring plate one is fixedly installed on one side of the box body, the outer side of the ring plate one

[0016] A sealing element is fixedly installed on the side wall;

[0017] A rotary sealing ring is disposed on the outer side wall of the connecting shaft.

[0018] An annular plate II is fixedly installed on the outer wall of the ring, and a sealing element II is fixedly installed inside the annular plate II;

[0019] Clamp one and clamp two are respectively installed on one side of the box body.

[0020] The first clamp and the second clamp are detachably connected;

[0021] The baffle plate is fixedly installed on the inner sidewalls of the first clamp and the second clamp, respectively.

[0022] The blocking plate and the second annular plate are engaged.

[0023] Preferably, a protective plate is detachably connected to one side of the housing, a positioning block is fixedly installed on one side of the protective plate, and a positioning groove is formed on one side of the housing, with the positioning block and the positioning groove being aligned.

[0024] Card connection.

[0025] Preferably, a threaded groove is formed through one side of the protective plate, and a threaded groove is formed on one side of the housing.

[0026] A second thread groove that matches the first thread groove.

[0027] Preferably, each of the outer walls of the connecting shaft is fixedly equipped with a sieve plate, and the sieve plates are arranged in a linear array.

[0028] Preferably, a limiting groove is provided on one side of the housing.

[0029] Preferably, limit blocks are fixedly installed on the outer side walls of clamp one and clamp two, respectively.

[0030] The limiting block is in contact with the limiting groove.

[0031] Preferably, mounting plates are fixedly installed on the outer side walls of the first clamp and the second clamp, respectively.

[0032] A fixing groove is provided through the top of the mounting plate.

[0033] The working principle and beneficial effects of this utility model are as follows:

[0034] By using clamp one, clamp two, annular plate one, and seal one and annular plate two, clamp one is moved vertically downwards along the housing, so that its inner wall contacts seal one. The baffle plate on the inner wall of clamp one engages in the annular groove on annular plate two, contacting seal two. Clamp two is then moved vertically downwards along the housing, so that its inner wall contacts seal one. The baffle plate on its inner wall engages in the annular groove on annular plate two, contacting seal two. Clamp one and clamp two are then tightly installed together with bolts and nuts. Clamp one and clamp two compress seal one to achieve a seal, preventing dust from easily entering the gap between the connecting shaft and the housing.

[0035] This design avoids dust easily entering the gap between the connecting shaft and the housing, thus preventing wear. Attached Figure Description

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0038] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0039] Figure 3 This is a three-dimensional structural diagram of the protective plate of this utility model;

[0040] Figure 4 This is a three-dimensional structural diagram of the clamp of this utility model.

[0041] In the diagram: 1. Housing; 2. Connecting shaft; 3. Annular plate one; 4. Seal one; 5. Rotary sealing ring; 6. Annular plate two; 7. Seal two; 8. Clamp one; 9. Clamp two; 10. Baffle plate; 11. Protective plate; 12. Positioning block; 13. Positioning groove; 14. Threaded groove one; 15. Threaded groove two; 16. Screen plate; 17.

[0042] 18. Limiting groove; 19. Limiting block; 20. Mounting plate; 21. Fixing groove. Detailed Implementation

[0043] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0044] Please see Figure 1 - Figure 4 This utility model provides an improved roller screen shaft end sealing device, comprising:

[0045] Box 1, and connecting shaft 2 rotatably connected to one side of box 1;

[0046] Annular plate 3 is fixedly installed on one side of the housing 1, and the outer wall of annular plate 3 is fixed.

[0047] The installation is equipped with a sealing element 4;

[0048] Rotary sealing ring 5 is disposed on the outer side wall of connecting shaft 2.

[0049] An annular plate 26 is fixedly installed on the side wall, and a sealing element 27 is fixedly installed inside the annular plate 26.

[0050] Clamp 1 (8) and clamp 2 (9) are respectively installed on one side of housing 1.

[0051] The connection between clamp 18 and clamp 29 is detachable;

[0052] Baffle 10 and baffle 10 are respectively fixedly installed on the inner side walls of clamp 8 and clamp 9, blocking

[0053] Plate 10 is snapped together with annular plate 6;

[0054] A limiting groove 17 is provided on one side of the housing 1, and the outer side walls of clamp 1 8 and clamp 2 9 are respectively fixed and installed.

[0055] A limit block 18 is installed, and the limit block 18 is in contact with the limit groove 17;

[0056] In use, insert the limiting block 18 on clamp 8 into the limiting groove 17 and move it downwards along the limiting groove 17, so that the inner wall of clamp 8 contacts seal 4. The baffle plate 10 on the inner wall of clamp 8 is engaged in the annular groove on annular plate 6 and contacts seal 7. Insert the limiting block 18 on clamp 9 into the limiting groove 17 and move it upwards along the limiting groove 17, so that the inner wall of clamp 9 contacts seal 4. The baffle plate 10 on the inner wall of clamp 9 is engaged in the annular groove on annular plate 6 and contacts seal 7. Use bolts and nuts to tightly install clamp 8 and clamp 9 together. The baffle plate 10 squeezes seal 7, causing deformation and filling the annular groove to achieve a seal. Clamp 8 and clamp 9 squeeze seal 4.

[0057] A seal is achieved to prevent dust from easily entering the gap between the connecting shaft 2 and the housing 1.

[0058] Specifically, a protective plate 11 is detachably connected to one side of the housing 1, a positioning block 12 is fixedly installed on one side of the protective plate 11, a positioning groove 13 is opened on one side of the housing 1, the positioning block 12 is engaged with the positioning groove 13, a threaded groove 14 is opened through one side of the protective plate 11, and a groove 14 is opened on one side of the housing 1 that corresponds to the threaded groove 14.

[0059] 14 Matching thread groove 2 15;

[0060] Insert the positioning block 12 on one side of the protective plate 11 into the positioning groove 13. At this time, the first thread groove 14 and the second thread groove 15 are aligned. Connect the first thread groove 14 and the second thread groove 15 with bolts so that the protective plate 11 is installed on one side of the box body 1. The protective plate 11 is provided with a downward sloping ramp to reduce the downward flow of material into the box.

[0061] Hoop 1 (8) moves in the same direction as Hoop 2 (9).

[0062] Specifically, sieve plates 16 are fixedly installed on the outer side wall of the connecting shaft 2, and the sieve plates 16 are arranged in a linear array;

[0063] The 16-screen plate effectively agitates and disperses the material, achieving efficient screening.

[0064] Specifically, mounting plates 19 are fixedly installed on the outer walls of clamp 8 and clamp 9 respectively.

[0065] A fixing groove 20 is provided through the top of 19;

[0066] The bolt and nut connect to the fixing groove 20 on the mounting plate 19, so that clamp 8 and clamp 9 are tightly installed.

[0067] Together.

[0068] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included.

[0069] It is included within the protection scope of this utility model.

Claims

1. An improved roller screen shaft end sealing device, characterized in that, include: Box body (1), and connecting shaft (2) rotatably connected to one side of the box body (1); Annular plate 1 (3) is fixedly installed on one side of the box body (1), and a sealing element 1 (4) is fixedly installed on the outer side wall of the annular plate 1 (3). A rotary sealing ring (5) is provided on the outer side wall of the connecting shaft (2). An annular plate (6) is fixedly installed on the outer side wall of the rotary sealing ring (5). A sealing element (7) is fixedly installed inside the annular plate (6). Clamp 1 (8) and clamp 2 (9) are respectively provided on one side of the box body (1), and clamp 1 (8) and clamp 2 (9) are detachably connected; The blocking plate (10) is fixedly installed on the inner sidewalls of the first clamp (8) and the second clamp (9), respectively, and the blocking plate (10) is engaged with the second annular plate (6).

2. The improved roller screen shaft end sealing device according to claim 1, characterized in that: A protective plate (11) is detachably connected to one side of the box (1), and a positioning block (12) is fixedly installed on one side of the protective plate (11). A positioning groove (13) is opened on one side of the box (1), and the positioning block (12) and the positioning groove (13) are engaged.

3. The improved roller screen shaft end sealing device according to claim 2, characterized in that: The protective plate (11) has a threaded groove (14) through one side, and the box body (1) has a threaded groove (15) matching the threaded groove (14) on one side.

4. The improved roller screen shaft end sealing device according to claim 1, characterized in that: The outer side wall of the connecting shaft (2) is fixedly equipped with sieve plates (16), which are arranged in a linear array.

5. The improved roller screen shaft end sealing device according to claim 1, characterized in that: A limiting groove (17) is provided on one side of the box (1).

6. The improved roller screen shaft end sealing device according to claim 5, characterized in that: Limiting blocks (18) are fixedly installed on the outer walls of clamp one (8) and clamp two (9), and the limiting blocks (18) are in contact with the limiting groove (17).

7. The improved roller screen shaft end sealing device according to claim 1, characterized in that: Mounting plates (19) are fixedly installed on the outer walls of the first clamp (8) and the second clamp (9), and a fixing groove (20) is provided through the top of the mounting plate (19).

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