Self-adapting aligning anti-channeling device for slag cooler

Abstract

The utility model discloses a kind of self-adapting alignment anti-channeling devices for slag cooler, belong to the technical field of slag cooler.The device includes wheel belt buffering centering mechanism symmetrically arranged at the both sides of drum wheel belt and supporting roller anti-channeling mechanism supported below drum raceway;Wheel belt buffering centering mechanism realizes radial buffering and automatic centering by base, support frame, guide pillar, spring and gyro wheel.Toothed roller anti-channeling mechanism is through fixed base, supporting roller shaft, the outer rotation sleeve of bearing alignment bearing, supporting roller and the pre-tightening anti-channeling component formed by compression ring, thrust bearing, butterfly spring group and end cover, jointly provide radial support, axial anti-channeling and self-aligning function.The utility model can effectively inhibit drum axial channeling and radial deviation by double synergistic effect, with self-adapting alignment ability, significantly improve the stability and reliability of slag cooler operation.

Description

Technical Field

[0001] This utility model relates to the field of cold slag machine technology, and in particular to an adaptive self-aligning and anti-channeling device for cold slag machines. Background Technology

[0002] The slag cooler is a key piece of equipment in circulating fluidized bed boilers and other similar facilities, used for cooling and conveying high-temperature slag. Its core component is a low-speed rotating drum. The drum is typically supported on idler rollers by tires at both ends. In actual operation, due to factors such as installation errors, foundation settlement, uneven heating and deformation of the drum, and uneven distribution of slag material inside, the drum is prone to axial movement and radial misalignment. Severe movement and misalignment can lead to abnormal wear of the tires and idler rollers, increased equipment vibration, overload of the drive motor, and even major shutdown accidents such as the tires detaching from the idler rails.

[0003] In existing technologies, common anti-slip devices are mostly rigid retaining rollers or simple friction limiting mechanisms. While rigid retaining rollers can limit axial movement, they cannot absorb impact and vibration, easily causing point contact stress concentration and rapid local wear. They also lack self-aligning capabilities and have poor adaptability to roller runout. Simple friction limiting mechanisms, on the other hand, suffer from problems such as unadjustable preload, easy loosening, and unstable friction coefficient, resulting in limited anti-slip effectiveness. They also lack effective radial buffering and centering capabilities. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems and provide an adaptive self-aligning and anti-channeling device for slag coolers.

[0005] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is: an adaptive self-aligning and anti-slip device for a slag cooler, including a tire buffer centering mechanism, which is symmetrically arranged on both sides of the tire of the slag cooler drum to provide radial buffering and automatic centering; The idler roller anti-slip mechanism is supported below the roller raceway and is used to provide radial support, axial anti-slip and self-aligning. The tire buffer centering mechanism includes a base, a support frame, a guide assembly, a buffer element, and a roller assembly; The guide component is disposed on the base; The support frame is slidably mounted on the guide assembly; The buffer element acts between the base and the support frame; The roller assembly is mounted on the support frame for contact with the side of the roller's tire; The roller anti-slip mechanism includes a fixed base, roller shaft, outer rotating sleeve, self-aligning bearing, roller, anti-slip friction assembly, and pre-tightening device; The idler roller shaft is fixed on the fixed base. The outer rotating sleeve is rotatably mounted on the idler roller shaft via a self-aligning bearing; The idler roller is fixed on the outer rotating sleeve, and its outer surface has protrusions for contacting the raceway; The anti-slip friction assembly and pre-tightening device are located on both sides of the idler roller; The preload device provides axial preload to the anti-slip friction assembly, causing the mechanism to interact with the end of the idler roller.

[0006] Preferably, the guide assembly includes two parallel guide posts, and the support frame is provided with two sliding bearings or bushings that respectively cooperate with the two guide posts.

[0007] Preferably, the buffer element is a helical compression spring, which is sleeved on the guide assembly.

[0008] Preferably, the roller assembly is mounted on the support frame via a self-aligning bearing with a mounting seat.

[0009] Preferably, the anti-slip friction assembly includes a clamping ring axially slidably sleeved on the outer rotating sleeve, and a rolling element assembly disposed between the clamping ring and the end face of the idler roller.

[0010] Preferably, the rolling element assembly is a thrust tapered roller bearing; the inner side of the clamping ring is provided with a tapered surface that matches the rolling element assembly.

[0011] Preferably, the axial cross-sectional profile of the raised portion of the idler roller is arc-shaped, and its arc radius is adapted to the concave arc radius of the bottom surface of the roller raceway.

[0012] Preferably, the pre-tightening device includes a butterfly spring assembly and an end cap for pressing the butterfly spring assembly, the end cap being fixed to the end of the outer rotating sleeve.

[0013] Compared with the traditional structure, the beneficial effects of this utility model are: 1. This utility model achieves axial limiting and radial alignment through the buffer centering mechanism on both sides of the tire, and provides axial frictional resistance through the anti-slip mechanism of the lower idler roller. The combination of the two fundamentally suppresses roller slippage and deviation.

[0014] 2. The tire alignment mechanism adopts spring buffer and sliding guide, which can effectively absorb the radial impact and vibration generated during the operation of the drum, and protect the tire, idler roller and related support structure.

[0015] 3. The idler roller is supported by a self-aligning bearing, and the arc-shaped protrusion makes line contact with the concave arc raceway of the roller, which can automatically adapt to the sway and bending deformation of the roller and reduce edge stress.

[0016] 4. The idler roller anti-slip mechanism adopts a butterfly spring preload to provide constant and adjustable axial pressure. The pressure is converted into stable frictional resistance through the thrust bearing, which is reliable and can compensate for wear. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the tire buffer centering mechanism of this utility model; Figure 3 This is a schematic diagram of the anti-slip mechanism for the idler rollers of this utility model; In the diagram: 1. Tire buffer centering mechanism, 11. Base, 12. Guide assembly, 121. Guide post, 13. Support frame, 14. Buffer element, 15. Roller assembly, 151. Self-aligning bearing with seat, 152. Roller, 2. Idler roller anti-slip mechanism, 21. Fixed seat, 22. Idler roller shaft, 23. Outer rotating sleeve, 24. Self-aligning bearing, 25. Idler roller, 26. Pressure ring, 27. Rolling element assembly, 28. Disc spring assembly, 29. End cap, 3. Roller. Detailed Implementation

[0018] The present invention will be further described below.

[0019] See attached document Figure 1-3 The self-aligning anti-slip device for the slag cooler includes a tire buffer centering mechanism 1 and an idler roller anti-slip mechanism 2 supported below.

[0020] like Figure 1 and Figure 2 As shown, the tire buffer centering mechanism 1 is symmetrically installed on both sides of the tire of the roller 3. This mechanism includes a base 11, on which two parallel guide posts 121 are vertically fixed, forming a guide assembly 12. A support frame 13 cooperates with the guide posts 121 via sliding bearings (or bushings), allowing the support frame 13 to slide along the guide posts 121 in a direction perpendicular to the tire side. Each of the two guide posts 121 is fitted with a helical compression spring; the lower end of the spring abuts against the base 11, and the upper end abuts against the support frame 13, providing the support frame 13 with an elastic preload towards the tire. A roller 152 is mounted on the upper part of the support frame 13 via a self-aligning bearing 151. After installation, the rollers 152 on both sides remain in close contact with the two sides of the tire under the action of the springs.

[0021] Its working principle is as follows: When roller 3 moves axially, it squeezes one side of roller 152, which in turn compresses the spring on that side through the support frame 13. The reaction force of the spring constitutes the axial constraint force on roller 3, suppressing the movement. When roller 3 deviates radially, the contact force between the two rollers 152 and the tire changes, forcing the two support frames 13 to produce differential displacement. The spring force difference forms a corrective torque, helping roller 3 to automatically return to center. The entire process is flexible, avoiding rigid impact.

[0022] like Figure 1 , Figure 3 As shown, the idler roller anti-slip mechanism 2 is installed below the raceway of the roller 3. This mechanism includes a fixed base 21, on which a horizontal idler roller shaft 22 is fixed. An outer rotating sleeve 23 is supported on the idler roller shaft 22 by a self-aligning bearing 24 (such as a self-aligning roller bearing), allowing the outer rotating sleeve 23 to rotate freely relative to the idler roller shaft 22 and possessing a certain degree of self-aligning capability. The idler roller 25 is fixed to the outer rotating sleeve 23 by a key connection or interference fit, and its outer surface is machined with an arc-shaped protrusion. The radius of this arc matches the concave arc radius at the bottom of the raceway of the roller 3, forming good line contact, increasing the contact area, reducing contact stress, and facilitating automatic alignment.

[0023] Anti-slip friction components and pre-tightening devices are provided at both ends of the idler roller 25. The anti-slip friction components mainly include an axially sliding clamping ring 26 and a set of thrust tapered roller bearings. The inner hole of the clamping ring 26 is fitted onto the outer rotating sleeve 23, allowing axial sliding but preventing relative rotation (connected by a key or spline). Its inner end face is machined into a tapered surface to mate with the tapered surface of the thrust tapered roller bearing. The other end face of the bearing contacts the end face of the idler roller.

[0024] The pre-tensioning device includes a disc spring assembly 28 and an end cap 29. The end cap 29 is fixed to the end of the outer rotating sleeve 23 by bolts, pressing the disc spring assembly 28 against the outer end face of the clamping ring 26. The spring force of the disc spring is transmitted through the clamping ring and the thrust bearing, and finally applies an axial clamping force to the end face of the idler roller.

[0025] Its working principle is as follows: Idler roller 25 provides the main radial support for the drum. When the drum 3 has an axial tendency, the friction between the raceway and the protrusion of idler roller 25 will cause idler roller 25 to generate an axial force. This axial force acts on the end face of idler roller 25 and needs to overcome the frictional resistance acting on the end face of the idler roller generated by the preload of the disc spring assembly 28 (converted through the thrust bearing). The disc spring has the characteristics of high stiffness and stable clamping force, and can compensate for the wear of the friction surface, thus ensuring the long-term effectiveness of the anti-axial movement force. The self-aligning bearing 24 allows idler roller 25 to wobble within a certain angle to adapt to the bending deformation of the drum.

[0026] The above embodiments of this utility model are merely examples to clearly illustrate this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent technical solutions also fall within the scope of this utility model, and the patent protection scope of this utility model should be defined by each claim.

Claims

1. An adaptive self-aligning and anti-channeling device for a slag cooler, characterized in that, Includes a tire buffer centering mechanism (1), which is symmetrically arranged on both sides of the tire of the slag cooler drum (3) to provide radial buffering and automatic centering; The idler roller anti-slip mechanism (2) is supported below the raceway of the roller (3) and is used to provide radial support, axial anti-slip and self-aligning. The tire buffer centering mechanism includes a base (11), a support frame (13), a guide assembly (12), a buffer element (14), and a roller assembly (15). The guide component (12) is disposed on the base (11); The support frame (13) is slidably mounted on the guide assembly (12); The buffer element (14) acts between the base (11) and the support frame (13); The roller assembly (15) is mounted on the support frame (13) for contacting the side of the tire of the roller (3); The roller anti-slip mechanism (2) includes a fixed seat (21), roller shaft (22), outer rotating sleeve (23), self-aligning bearing (24), roller (25), anti-slip friction assembly and pre-tightening device; The idler roller shaft (22) is fixed on the fixed base (21). The outer rotating sleeve (23) is rotatably mounted on the idler roller shaft (22) via a self-aligning bearing (24); The idler roller (25) is fixed on the outer rotating sleeve (23), and its outer surface has a protrusion for contacting the raceway; The anti-slip friction assembly and pre-tightening device are located on both sides of the idler roller (25); The preload device provides axial preload to the anti-slip friction assembly, causing the mechanism to interact with the end of the idler roller (25).

2. The adaptive self-aligning and anti-channeling device for a slag cooler according to claim 1, characterized in that: The guide assembly (12) includes two parallel guide posts (121), and the support frame (13) is provided with two sliding bearings or bushings that respectively cooperate with the two guide posts (121).

3. The adaptive self-aligning and anti-channeling device for a slag cooler according to claim 1, characterized in that: The buffer element (14) is a helical compression spring, which is sleeved on the guide assembly (12).

4. The adaptive self-aligning and anti-channeling device for a slag cooler according to claim 1, characterized in that: The roller assembly (15) is mounted on the support frame (13) via a self-aligning bearing (151).

5. The adaptive self-aligning and anti-channeling device for a slag cooler according to claim 1, characterized in that: The anti-slip friction assembly includes a clamping ring (26) axially slidably sleeved on the outer rotating sleeve (23), and a rolling element assembly (27) disposed between the clamping ring (26) and the end face of the idler roller (25).

6. The adaptive self-aligning and anti-channeling device for a slag cooler according to claim 5, characterized in that: The rolling element assembly (27) is a thrust tapered roller bearing; the inner side of the clamping ring (26) is provided with a tapered surface that matches the rolling element assembly (27).

7. The adaptive self-aligning and anti-channeling device for a slag cooler according to claim 1, characterized in that: The axial cross-sectional profile of the protrusion of the idler roller (25) is arc-shaped, and its arc radius is adapted to the concave arc radius of the bottom surface of the roller raceway.

8. The adaptive self-aligning and anti-channeling device for a slag cooler according to claim 1, characterized in that: The pre-tightening device includes a butterfly spring assembly (28) and an end cap (29) for pressing the butterfly spring assembly, the end cap (29) being fixed to the end of the outer rotating sleeve (23).

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