Axial positioning transmission for a screw dregger

Abstract

The utility model discloses a spiral slag remover axial positioning transmission device relates to spiral slag remover technical field. Including spiral slag remover cylinder, the inner wall fixedly connected with support seat of spiral slag remover cylinder, the inside rotatable connection of spiral slag remover cylinder has spiral shaft, and one end of spiral shaft is located inside support seat, and one side fixed mounting of spiral slag remover cylinder has motor, and the output of motor rotatory extension is in the inside of spiral slag remover cylinder and is fixedly connected with spiral shaft, and the structure of bearing is fixed by the installation of upper arc plate and lower arc plate and is bonded in support seat inside, when bearing appears abrasion, and need to replace when jam or failure, need not to dismantle support seat whole structure, also need not to move spiral shaft body, only need to screw down screw rod no.

Description

Technical Field

[0001] This utility model relates to the technical field of spiral slag removers, and in particular to an axial positioning transmission device for spiral slag removers. Background Technology

[0002] Spiral slag removers are key slag removal equipment for boilers, incinerators and other similar facilities. They use the rotation of a spiral shaft to transport slag axially to a designated location, enabling continuous slag removal.

[0003] In existing axial positioning transmission devices for spiral slag removers, the assembly structure of the support base and bearing is mostly direct press-fit or interference fit, with the bearing cavity of the support base being fixed tightly. The inner wall of the bearing cavity is tightly fitted to the outer ring of the bearing. During long-term use, the bearing is prone to wear, jamming, or failure due to the effects of slag dust, high-temperature conditions, and the impact of the spiral shaft rotation. Regular disassembly and replacement are required to ensure the normal operation of the equipment. However, the existing assembly method requires disassembly of the entire support base structure and even the spiral shaft body, which is cumbersome. At the same time, the disassembly process requires the use of special tools to forcibly push out or knock the bearing, which is not only time-consuming and laborious but also easily causes damage to the inner wall of the bearing cavity, the spiral shaft shoulder, and other components, thus affecting the transmission stability and service life of the spiral slag remover. Therefore, we propose an axial positioning transmission device for spiral slag removers. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an axial positioning transmission device for a spiral slag remover. This device addresses the issue that in existing axial positioning transmission devices for spiral slag removers, the assembly structure of the support base and bearing is mostly direct press-fit or interference fit, with the bearing fixed within the bearing cavity of the support base. The inner wall of the bearing cavity is tightly fitted to the outer ring of the bearing. During long-term use, the bearing is easily worn, jammed, or fails due to the influence of slag dust, high-temperature conditions, and the impact of the spiral shaft rotation. Regular disassembly and replacement are necessary to ensure normal equipment operation. However, the existing assembly method requires disassembling the entire support base structure and even moving the spiral shaft itself, making the operation cumbersome. Furthermore, the disassembly process requires the use of specialized tools to forcibly eject or strike the bearing, which is not only time-consuming and labor-intensive but also prone to damaging the inner wall of the bearing cavity and the spiral shaft shoulder, thus affecting the transmission stability and service life of the spiral slag remover.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an axial positioning transmission device for a spiral slag remover, comprising: The spiral slag remover cylinder has a support base fixedly connected to its inner wall. A spiral shaft is rotatably connected inside the spiral slag remover cylinder, with one end of the spiral shaft located inside the support base. A motor is fixedly installed on one side of the spiral slag remover cylinder, and the output end of the motor extends rotatably into the interior of the spiral slag remover cylinder and is fixedly connected to the spiral shaft. Spiral blades are threaded around the outer surface of the spiral shaft. A bearing replacement structure is provided on the support base. The bearing replacement structure includes an upper arc plate, a bearing, a screw, and a lower arc plate. The upper and lower arc plates are fitted together and installed inside the support base and outside the screw shaft. The inner walls of the upper and lower arc plates are respectively provided with mounting grooves. The bearing is fixedly installed inside the two mounting grooves and sleeved on the outer surface of the screw shaft. A positioning ring is fixedly sleeved on the outer surface of the lower arc plate. A through hole is provided on the outer surface of the positioning ring. A threaded hole is provided on the outer surface of the upper arc plate. The screw passes through the through hole and is threadedly connected to the threaded hole.

[0006] Preferably, the bearing replacement structure further includes multiple screws, multiple through holes are provided on the side of the positioning ring away from the support seat, and multiple threaded holes are provided on the side of the support seat near the positioning ring. The multiple screws pass through the interior of the corresponding through holes and are threadedly connected to the corresponding threaded holes.

[0007] Preferably, the lower arc plate has two mounting grooves on the side near the upper arc plate, and the upper arc plate has two mounting slides fixedly connected to the side near the lower arc plate, with the two mounting slides slidingly connected to the interior of the corresponding mounting grooves.

[0008] Preferably, a rubber pad is fixedly connected to the side of the upper arc plate away from the support base, and the rubber pad is in contact with the side of the lower arc plate away from the support base.

[0009] Preferably, the cross-sections of the mounting groove and the mounting slide are both convex structures.

[0010] Preferably, the positioning ring is slidably connected to the outer surface of the upper arc-shaped plate.

[0011] Preferably, the inner walls of the upper arc plate and the lower arc plate are respectively fixedly connected with two sealing gaskets, and the four sealing gaskets are respectively attached to the outer surface of the spiral shaft.

[0012] Preferably, the outer surface of the spiral slag remover barrel is fixedly connected to a feed inlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The axial positioning transmission device of this spiral slag remover uses an upper arc plate and a lower arc plate fitted together inside the support base to fix the bearing. When the bearing is worn, stuck, or fails and needs to be replaced, there is no need to disassemble the entire support base structure or move the spiral shaft body. Simply unscrew the screw to separate the upper and lower arc plates, and the damaged bearing can be easily removed and replaced with a new one. This greatly simplifies the operation and ensures the transmission stability and service life of the spiral slag remover. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rubber pad structure of this utility model; Figure 3 This is a schematic diagram of the upper arc-shaped plate structure of this utility model; Figure 4 This is a schematic diagram of the lower arc-shaped plate structure of this utility model; Figure 5 This is a schematic diagram of the support structure of this utility model.

[0015] Reference numerals in the attached diagram: 1. Spiral slag remover barrel; 2. Spiral blade; 3. Motor; 4. Spiral shaft; 5. Support base; 6. Rubber pad; 7. Upper arc plate; 8. Lower arc plate; 9. Positioning ring; 10. Bearing; 11. Mounting groove; 12. Mounting slide plate; 13. Sealing gasket; 14. Mounting slide groove; 15. Screw one; 16. Through hole one; 17. Threaded hole one; 18. Screw two; 19. Through hole two; 20. Threaded hole two. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Spiral slag remover cylinder 1: provides a closed space for slag removal operations. Material enters the cylinder from the feed port fixedly connected to its outer surface. The spiral shaft 4 is rotatably connected inside, and a support seat 5 is fixedly connected to the inner wall at one end. Spiral blade 2: It is threaded around the outer surface of the spiral shaft 4 and pushes the material along the axial direction of the cylinder as the spiral shaft 4 rotates, thereby achieving the slag removal function; Motor 3: It is fixedly installed on one side of the spiral slag remover cylinder 1, and its output end extends into the cylinder and is fixedly connected to the spiral shaft 4. After starting, it drives the spiral shaft 4 to rotate. Spiral shaft 4: One end is located inside the support base 5, and rotates inside the spiral slag remover barrel 1 under the drive of motor 3, with spiral blades 2 wrapped around its outer surface; Support 5: It is fixedly connected to the inner wall of the spiral slag remover cylinder 1, and the upper arc plate 7 and the lower arc plate 8 are fitted inside to provide an installation position for components such as bearing 10; Rubber pad 6: It is fixedly connected to the side of the upper arc plate 7 away from the support base 5 and fits against the side of the lower arc plate 8 away from the support base 5, so as to play a role in buffering and sealing. Upper arc plate 7: It is fitted and installed inside the support base 5 and outside the spiral shaft 4, with an installation groove 11 on the inner wall to fix the bearing 10. The mounting slide plate 12 and rubber pad 6 are fixedly connected on one side, and a threaded hole 17 is opened on the outer surface. The lower arc plate 8 is fitted and installed inside the support base 5 and outside the spiral shaft 4. The inner wall has an installation groove 11 to fix the bearing 10, the outer surface is fixedly fitted with a positioning ring 9, and an installation slide groove 14 is opened on one side. Positioning ring 9: It is fixedly sleeved on the outer surface of the lower arc plate 8. A through hole 16 is opened on the outer surface, and multiple through holes 19 are opened on the side away from the support base 5. It is slidably connected to the outer surface of the upper arc plate 7, and plays a role in positioning and assisting installation. Bearing 10: It is fixedly installed in the mounting groove 11 on the inner wall of the upper arc plate 7 and the lower arc plate 8, and is sleeved on the outer surface of the spiral shaft 4. It supports and positions the spiral shaft 4 and prevents it from having excessive axial displacement. Mounting slots 11 are respectively opened on the inner walls of the upper arc plate 7 and the lower arc plate 8 for fixing and mounting bearings 10; Installing slide plate 12: It is fixedly connected to the side of the upper arc plate 7 near the lower arc plate 8. There are two of them, which are slidably connected to the corresponding mounting slide groove 14 on the lower arc plate 8. The cross section is a "convex" structure to ensure stable connection and prevent it from falling off. Sealing gasket 13: Two gaskets are fixedly connected to the inner walls of the upper arc plate 7 and the lower arc plate 8 respectively, and are respectively attached to the outer surface of the spiral shaft 4 to prevent impurities from entering the bearing 10 and affecting its operation; Installation groove 14: It is opened on the side of the lower arc plate 8 near the upper arc plate 7. There are two grooves, which are slidably connected to the corresponding installation slide plate 12 on the upper arc plate 7. The cross section is a "convex" shaped structure. Screw 15: Passes through the through hole 16 on the positioning ring 9 and is threaded to the threaded hole 17 on the upper arc plate 7, further fixing the upper arc plate 7 and the lower arc plate 8; Screw 2 18: Multiple screws pass through the corresponding through hole 2 19 on the positioning ring 9 and are threaded to the corresponding threaded hole 20 on the support base 5 to initially fix the lower arc plate 8 on the support base 5.

[0021] Example 1: like Figure 1-5 As shown, during the installation process, the positioning ring 9 on the outer surface of the lower arc plate 8 plays a role in positioning and assisting installation. First, the upper arc plate 7 is brought close to the lower arc plate 8, so that the two mounting slide plates 12 on the upper arc plate 7 slide into the corresponding mounting grooves 14 on the lower arc plate 8. Since the cross-sections of the mounting grooves 14 and the mounting slide plates 12 are "convex" structures, it can ensure that the two are stably connected and will not easily separate. Then, the closed upper arc plate 7 and lower arc plate 8 are installed into the support base 5. Subsequently, the screw 15 passes through the through hole 16 on the positioning ring 9 and is threaded to the threaded hole 17 on the upper arc plate 7 to further fix the upper arc plate 7 and lower arc plate 8, so that the two fit tightly together. The bearing 10 is firmly installed in the upper arc plate 7 and lower arc plate 8. Multiple screws 18 pass through the through hole 19 and are threaded to the threaded hole 20 to initially fix the lower arc plate 8 on the support base 5.

[0022] Example 2: like Figure 3 As shown, the rubber pad 6 helps to form a tighter fit between the upper arc plate 7 and the lower arc plate 8. This tight fit helps to reduce the entry of impurities such as dust and slag into the equipment from the gaps at the connection of the arc plates, especially preventing impurities from entering the bearing 10 area. The good sealing effect can avoid the wear and jamming of the bearing 10 by impurities, and ensure the normal operation of the bearing 10.

[0023] Furthermore, when using this device, during operation, the motor 3 starts and drives the spiral shaft 4 to rotate inside the spiral slag remover cylinder 1. The spiral blades 2, which are threaded around the outer surface of the spiral shaft 4, rotate accordingly. The material enters the cylinder from the feed port fixedly connected to the outer surface of the spiral slag remover cylinder 1 and moves along the cylinder axis under the push of the spiral blades 2, thereby achieving the slag removal function.

[0024] The upper arc plate 7 and the lower arc plate 8 are fitted together and installed inside the support base 5 and outside the spiral shaft 4. The bearing 10 is fixedly installed in the mounting groove 11 opened in the inner wall of the two. The bearing 10 is sleeved on the outer surface of the spiral shaft 4, which supports and positions the spiral shaft 4 and prevents it from displacing too much in the axial direction.

[0025] During installation, the positioning ring 9 on the outer surface of the lower arc plate 8 serves to position and assist in installation. First, the upper arc plate 7 is brought close to the lower arc plate 8, so that the two mounting slide plates 12 on the upper arc plate 7 slide into the corresponding mounting grooves 14 on the lower arc plate 8. Since the cross-sections of the mounting grooves 14 and the mounting slide plates 12 are convex, they can be stably connected and will not easily detach. Then, the closed upper arc plate 7 and lower arc plate 8 are installed into the support base 5. Subsequently, the screw 15 is threaded through the through hole 16 on the positioning ring 9 and threaded into the threaded hole 17 on the upper arc plate 7 to further fix the upper arc plate 7 and lower arc plate 8, so that they fit tightly together. The bearing 10 is then securely installed in the upper arc plate 7 and lower arc plate 8.

[0026] By threading multiple screws 18 through through holes 19 and threaded holes 20, the lower arc plate 8 is initially fixed on the support base 5.

[0027] The rubber pad 6 fixedly connected to the side of the upper arc plate 7 away from the support seat 5 is attached to the side of the lower arc plate 8 away from the support seat 5, which plays a role in buffering and sealing. The two sealing pads 13 fixedly connected to the inner walls of the upper arc plate 7 and the lower arc plate 8 are respectively attached to the outer surface of the spiral shaft 4 to prevent impurities from entering the bearing 10 and affecting its normal operation.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A screw dregger axial positioning transmission device, characterized in that, include: The spiral slag remover cylinder (1) has a support base (5) fixedly connected to its inner wall. The spiral slag remover cylinder (1) is rotatably connected to a spiral shaft (4). One end of the spiral shaft (4) is located inside the support base (5). A motor (3) is fixedly installed on one side of the spiral slag remover cylinder (1). The output end of the motor (3) rotates and extends into the interior of the spiral slag remover cylinder (1) and is fixedly connected to the spiral shaft (4). Spiral blades (2) are threaded around the outer surface of the spiral shaft (4). A bearing replacement structure is provided on the support base (5). The bearing replacement structure includes an upper arc plate (7), a bearing (10), a screw (15) and a lower arc plate (8). The upper arc plate (7) and the lower arc plate (8) are fitted together and installed inside the support base (5) and outside the screw shaft (4). The inner walls of the upper arc plate (7) and the lower arc plate (8) are respectively provided with mounting grooves (11). The bearing (10) is fixedly installed inside the two mounting grooves (11) and the bearing (10) is sleeved on the outer surface of the screw shaft (4). Among them, the outer surface of the lower arc plate (8) is fixedly fitted with a positioning ring (9), the outer surface of the positioning ring (9) is provided with a through hole (16), the outer surface of the upper arc plate (7) is provided with a threaded hole (17), and the screw (15) passes through the interior of the through hole (16) and is threadedly connected to the threaded hole (17).

2. The axial positioning transmission device for the spiral slag remover according to claim 1, characterized in that: The bearing replacement structure also includes multiple screws (18), and multiple through holes (19) are provided on the side of the positioning ring (9) away from the support seat (5). Multiple threaded holes (20) are provided on the side of the support seat (5) close to the positioning ring (9). The multiple screws (18) pass through the interior of the corresponding through holes (19) and are threadedly connected to the corresponding threaded holes (20).

3. The axial positioning transmission device for the spiral slag remover according to claim 1, characterized in that: The lower arc plate (8) has two mounting grooves (14) on the side near the upper arc plate (7). The upper arc plate (7) has two mounting slide plates (12) fixedly connected to the side near the lower arc plate (8). The two mounting slide plates (12) are slidably connected to the interior of the corresponding mounting grooves (14).

4. The axial positioning transmission device for the spiral slag remover according to claim 1, characterized in that: A rubber pad (6) is fixedly connected to the side of the upper arc plate (7) away from the support base (5), and the rubber pad (6) is in contact with the side of the lower arc plate (8) away from the support base (5).

5. The axial positioning transmission device for the spiral slag remover according to claim 1, characterized in that: The cross-sections of the mounting groove (14) and the mounting slide plate (12) are convex structures.

6. The axial positioning transmission device for the spiral slag remover according to claim 1, characterized in that: The positioning ring (9) is slidably connected to the outer surface of the upper arc plate (7).

7. The axial positioning transmission device for the spiral slag remover according to claim 1, characterized in that: The inner walls of the upper arc plate (7) and the lower arc plate (8) are respectively fixedly connected with two sealing gaskets (13), and the four sealing gaskets (13) are respectively attached to the outer surface of the spiral shaft (4).

8. The axial positioning transmission device for the spiral slag remover according to claim 1, characterized in that: The outer surface of the spiral slag remover cylinder (1) is fixedly connected to the feed port.

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