Bearing heat resistance structure of middle roll crusher of grate cooler

Abstract

The utility model provides a heat-resistant structure of a middle roll crusher bearing of a grate cooler, which belongs to the technical field of grate coolers and comprises a rotating rod rotationally arranged on a grate bed, a rotating shaft rotationally arranged on a bearing seat and a spoiler positioned between the grate bed and the bearing seat, the rotating shaft is connected with the rotating rod through a coupling structure, and the spoiler is provided with a blocking surface. The area of the blocking surface is larger than that of a gap between the rotating rod and the grate bed, and the blocking surface is used for blocking hot airflow discharged from the gap; according to the utility model, hot air flow discharged between the grate bed and the rotating rod can be guided, so that the hot air flow is prevented from being directly blown to the bearing seat, and the service life of the bearing can be indirectly prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of grate cooler equipment, specifically to the heat-insulating structure of the bearing of the central roller crusher in the grate cooler. Background Technology

[0002] In the production process of cement clinker, the grate cooler plays a crucial role, responsible for cooling the high-temperature clinker to a suitable temperature for subsequent grinding and packaging. With the continuous advancement of cement industry technology, the design of grate coolers has become increasingly sophisticated. Among them, the central roller crusher cooler, as an advanced type of grate cooler, is highly favored for its efficient cooling effect and excellent heat recovery capability.

[0003] However, during the actual operation of a centrally located roller crusher cooler, the bearings themselves generate frictional heat, causing a rapid increase in bearing temperature. This is especially true in summer or when there is raw material in the grate. The hot air generated inside the grate blows through the gap between the rotating rod and the grate towards the bearing housing, further increasing the bearing temperature. Excessive operating temperature not only affects the bearing's lubrication and reduces its service life but may also cause bearing failure, thus affecting the stable operation of the entire grate cooler. Utility Model Content

[0004] In view of this, the present invention provides a heat-insulating structure for the bearing of the central roller crusher in a grate cooler. The present invention can guide the hot airflow discharged between the grate bed and the rotating rod, thereby preventing the hot airflow from blowing directly onto the bearing seat, and thus indirectly increasing the service life of the bearing.

[0005] To solve the above-mentioned technical problems, this utility model provides a heat-insulating structure for a roller crusher bearing in a grate cooler, including a rotating rod rotatably mounted on the grate and a rotating shaft rotatably mounted on the bearing seat. The rotating shaft and the rotating rod are coaxially arranged and connected by a coupling structure. The rotating rod can indirectly drive the rotating shaft to rotate. It also includes a baffle plate located between the grate and the bearing seat. The rotating rod can directly or indirectly drive the baffle plate to rotate. The baffle plate has a blocking surface with an area larger than the gap between the rotating rod and the grate, which is used to block the hot airflow discharged from the gap, so that the hot air will not be blown to the bearing seat and increase the bearing temperature.

[0006] The baffle plate has a circular structure and is coaxially arranged with the rotating rod.

[0007] The baffle plate is also equipped with an inclined surface, which has a ring-shaped hopper structure and can guide the hot airflow.

[0008] The baffle plate has an annular hopper-shaped structure, and the annular hopper also has a sloping structure that can guide the hot airflow.

[0009] The baffle is detachably installed at the coupling structure, meaning it can be removed for replacement or maintenance.

[0010] The baffle is assembled from multiple plates, making it easy to install each baffle individually.

[0011] Multiple clamping plates are fixed to the coupling structure with bolts, which allows for quick installation or removal of the clamping plates.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Effective Hot Airflow Blocking: By installing a baffle plate between the grate and the bearing housing, the hot airflow exiting through the gap between the rotating rod and the grate is blocked, significantly reducing the direct impact of the hot airflow on the bearing housing and bearing. This design effectively avoids reduced lubrication, shortened service life, and potential malfunctions caused by high temperatures, thus ensuring the stable operation of the grate cooler.

[0014] 2. Improved Equipment Reliability: The baffle plate design not only reduces damage to the bearings from hot airflow but also indirectly improves the overall reliability and durability of the grate cooler. This helps reduce downtime and maintenance costs due to equipment failure, further enhancing production efficiency and economic benefits.

[0015] 3. Flexibility and Maintainability: The detachable installation method of the baffle allows users to easily replace or maintain it. Furthermore, the baffle's structure, assembled from multiple clamping plates, not only facilitates installation and disassembly but also allows for localized adjustments or replacements according to actual needs, improving the equipment's flexibility and adaptability.

[0016] 4. Innovative Design, Easy to Promote: The heat-insulating structure of this utility model is novel and highly practical. It is not only suitable for existing grate cooler equipment, but can also be used as an improvement solution in other similar equipment. Its simple structure and low cost make it easy to promote and apply in the cement industry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heat-insulating structure of the central roller crusher bearing in the grate cooler of this utility model;

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A;

[0019] Figure 3 This is a schematic diagram of the structure of the bowl-shaped flow baffle of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the bowl-shaped flow baffle of this utility model;

[0021] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point B

[0022] Figure 6 This is a schematic diagram of the structure of the conical flow baffle of this utility model;

[0023] Figure 7 This is a schematic diagram of the conical flow barrier of this utility model;

[0024] Figure 8 This utility model Figure 7 A schematic diagram of the cross-sectional view of the middle baffle plate.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Grate bed; 101. Rotating rod; 200. Bearing seat; 201. Rotating shaft; 300. Coupling structure; 400. Baffle plate; 401. Barrier surface; 402. Inclined surface; 403. Clamping plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-8 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0028] Example 1

[0029] A heat-insulating structure for a roller crusher bearing in a grate cooler includes multiple rotating rods 101 rotatably mounted on a grate bed 100. Each rotating rod 101 has an annular gap between itself and the grate bed 100, through which the hot air generated during the operation of the grate bed 100 is discharged. Simultaneously, multiple bearing seats 200 are provided corresponding to the grate bed 100, with the number of bearing seats 200 matching the number of rotating rods 101. Each bearing seat 200 contains a rotating shaft 201, the end of which is connected to the end of the rotating rod 101 via a coupling structure 300. Thus, the bearing seat 200 and the rotating shaft 201 provide support for the rotating rod 101. The coupling structure 300 can be a coupling or a flange connection structure.

[0030] It also includes a baffle plate 400 located between the grate 100 and the bearing housing 200. The baffle plate 400 is fixed to the rotating shaft 201 or the rotating rod 101. That is, when the rotating rod 101 rotates, it can directly or indirectly drive the baffle plate 400 to rotate. The baffle plate 400 has a blocking surface 401 on the opposite side of the machine tool. The cross-section of the blocking surface 401 is larger than the gap between the rotating rod 101 and the grate 100. It is used to block the hot airflow discharged from the gap. That is, when the grate 100 is working, the hot airflow can be discharged through the gap between the rotating rod 101 and the grate 100. Some of the hot airflow will flow towards the bearing housing 200. During the flow, this part of the hot airflow will come into contact with the blocking surface 401 on the baffle plate 400, thereby passively changing the airflow direction. In this way, the hot air will not flow to the bearing housing 200, thus avoiding the impact of the bearing being heated by the hot airflow.

[0031] like Figure 1 , 2 As shown, the baffle plate 400 has a circular structure. The baffle plate 400 and the rotating rod 101 or the rotating shaft 201 are located on the same axis. That is, the circular structure can be perfectly matched with the circular gap, thereby effectively reducing the material consumption generated in manufacturing the baffle plate 400 and reducing the space occupied by the baffle plate 400 when rotating.

[0032] like Figure 1 , 2 As shown, the baffle plate 400 is detachably installed at the coupling structure 300, meaning that the baffle plate 400 can be removed from the coupling structure 300, allowing users to easily replace or maintain it.

[0033] In practice, the flow baffle 400 can be assembled from multiple clamping plates 403, such as... Figure 2 As shown, the flow baffle 400 consists of two identical semi-circular ring-shaped clamping plates 403, and each clamping plate 403 is fixed to the coupling structure 300 by bolts. At the same time, the clamping plate 403 can also be fixed to the coupling structure 300 by a snap-fit ​​structure. This allows for quick installation or removal of the clamping plate 403, and also facilitates local adjustments or replacements according to actual needs, improving the flexibility and adaptability of the equipment.

[0034] It is worth mentioning that the coupling structure 300 is preferably designed as a flange structure, and the clamping plate 403 is fixed to the flange with bolts. Since the flange itself has multiple bolts, during installation, several bolts on the flange can be removed directly, the clamping plate 403 can be placed in the designated position, and then the clamping plate 403 can be installed using these bolts. This eliminates the need to modify the coupling structure 300, increasing the practicality and applicability of the device.

[0035] Example 2

[0036] The difference from Embodiment 1 is that the baffle plate 400 is also provided with an inclined surface 402, which is an annular hopper-shaped structure. That is, the baffle plate 400 is composed of an annular part and a hopper-shaped part. The narrower end of the hopper-shaped part is connected to the outer edge of the annular structure. That is, the baffle plate 400 as a whole is a bowl-shaped structure. The bottom of the bowl-shaped structure is connected to the coupling structure 300. The bowl-shaped structure also has an opening, and both the inner and outer walls of the bowl-shaped structure have inclined surfaces 402.

[0037] like Figure 4 As shown; when the opening faces the bearing housing 200, when the hot air blows onto the baffle plate 400, part of the air will blow onto the inclined surface 402 outside the bowl-shaped structure, and the hot air will diffuse into the ambient air along the inclined surface 402. Another part of the air will blow onto the flat structure at the bottom of the bowl and be dispersed, thus stopping the flow and waiting to be carried by the subsequent hot air. That is, the hot air can perfectly avoid the bearing housing 200.

[0038] like Figure 3 , 5 As shown; when the opening faces the grate bed 100, when the hot air blows onto the baffle plate 400, part of the air will blow into the inside of the bowl-shaped structure. As the hot air continues to advance, the hot air inside the bowl will be discharged towards the grate bed 100 along the inclined surface 402 of the inner wall of the bowl, thereby preventing the hot air from blowing onto the bearing seat 200.

[0039] Furthermore, unlike Embodiment 1, this bowl-shaped structure is also composed of multiple card plates 403 spliced ​​together, such as... Figure 5 As shown, the flow deflector 400 consists of two identical clamping plates 403. Both clamping plates 403 have an L-shaped cross-section, and the planar portion of the clamping plates 403 is connected to the coupling structure 300, which allows for quick installation or removal of the clamping plates 403.

[0040] Example 3

[0041] The difference from Embodiment 1 is that the baffle plate 400 is in the shape of a hopper, that is, the baffle plate 400 is in the shape of a cone. The cone has an opening, and the inner and outer walls of the cone baffle plate 400 are both formed with inclined surfaces 402.

[0042] like Figure 7 As shown; when the opening is facing the bearing housing 200, the hot airflow will directly hit the inclined surface 402 on the outside of the cone when it blows onto the baffle plate 400. As a result, the hot airflow will diffuse into the ambient air along the inclined surface 402, thus preventing the hot airflow from blowing directly onto the bearing housing 200.

[0043] like Figure 6 As shown; when the opening faces the bearing housing 200, the hot airflow will blow inside the conical structure. As the subsequent hot airflow continues to advance, the hot airflow inside the cone will be discharged towards the grate bed 100 along the inclined surface 402 of the inner wall of the cone, thereby preventing the hot airflow from blowing onto the bearing housing 200.

[0044] Furthermore, unlike Embodiment 1, this conical structure is also composed of multiple clamping plates 403 spliced ​​together, such as... Figure 8 As shown, the flow-blocking plate 400 consists of two identical clamping plates 403. The cross-section of both clamping plates 403 is a semi-conical arc structure, and the middle of the inner wall of the clamping plate 403 is connected to the coupling structure 300.

[0045] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A heat-insulating structure for a roller crusher bearing in a grate cooler, comprising a rotating rod (101) rotatably mounted on a grate bed (100) and a rotating shaft (201) rotatably mounted on a bearing seat (200), wherein the rotating shaft (201) and the rotating rod (101) are connected by a coupling structure (300), characterized in that: Includes a baffle plate (400) located between the grate and the bearing seat (200), the baffle plate (400) having a blocking surface (401) with a cross-section larger than the gap between the rotating rod (101) and the grate, for blocking the hot airflow discharged from the gap.

2. The heat-resistant structure for the centrally located roller crusher bearing in the grate cooler as described in claim 1, characterized in that: The flow barrier (400) has a circular ring structure.

3. The heat-resistant structure for the centrally located roller crusher bearing in the grate cooler as described in claim 2, characterized in that: The flow baffle (400) is also provided with an inclined surface (402), which has an annular hopper-shaped structure.

4. The heat-resistant structure for the centrally located roller crusher bearing in the grate cooler as described in claim 1, characterized in that: The flow baffle (400) has an annular hopper-shaped structure.

5. The heat-resistant structure for the centrally located roller crusher bearing in a grate cooler as described in claim 1, characterized in that: The flow deflector (400) is detachably mounted on the coupling structure (300).

6. The heat-resistant structure for the centrally located roller crusher bearing in a grate cooler as described in claim 3 or 4, characterized in that: The flow barrier (400) is assembled from multiple plates (403).

7. The heat-resistant structure for the centrally located roller crusher bearing in a grate cooler as described in claim 6, characterized in that: The multiple clamping plates (403) are all fixed to the coupling structure (300) by bolts.

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