Grate driving mechanism and waste incinerator
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-30
- Publication Date
- 2026-08-11
AI Technical Summary
[0033]从以上技术方案可以看出，本申请提供一种炉排传动机构与垃圾焚烧炉；其中，炉排传动机构包括：动力组件、驱动臂、调心滚子轴承组件、传动轴与轴封；所述传动轴的输入端伸出炉排壁的外部；所述轴封设置于所述传动轴与所述炉排壁之间；所述调心滚子轴承组件能够拆卸地连接所述传动轴的输入端；所述驱动臂能够拆卸地连接所述传动轴的输入端；所述动力组件的输出端连接所述驱动臂。
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Figure CN224622890U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of waste treatment equipment technology, and in particular to a grate drive mechanism and a waste incinerator. Background Technology
[0002] A waste incinerator is a device used to incinerate waste. Its core function is to reduce the volume and amount of waste through combustion, thereby reducing the land area occupied by waste and achieving the goal of waste reduction. Simultaneously, the heat generated during waste incineration can be used for heating and power generation, realizing the resource recovery of waste.
[0003] The grate is one of the core components of a waste incinerator. It is connected to a hydraulic drive through a transmission mechanism and can reciprocate back and forth under the drive of the hydraulic drive.
[0004] During incineration, the waste comes into contact with the grate surface. After the hydraulic actuator is activated, the grate agitates the waste, loosening it and continuously pushing it to flatten and move it forward, ensuring that the waste makes full contact with the preheated air on the grate surface to complete the drying and combustion process until the waste is completely burned.
[0005] In a waste incinerator, the grate's transmission mechanism typically includes a hydraulic cylinder, a drive arm, a drive shaft, self-aligning roller bearings, and multiple support bearings. The grate comprises a movable grate beam. The drive arm is detachably fitted onto one end of the drive shaft. Both the self-aligning roller bearing and the support bearings are fitted onto the drive shaft, with the self-aligning roller bearing located at the end closest to the drive arm. The output end of the hydraulic cylinder is connected to the drive arm. When the hydraulic cylinder is activated, it drives the drive arm to move back and forth, which in turn rotates the drive shaft; the rotating drive shaft then drives the movable grate beam on the grate to move back and forth.
[0006] When the self-aligning roller bearing is worn to the point of needing replacement, the furnace must be shut down before maintenance can be performed. The specific procedure involves shutting down the furnace, removing the sealing device between the drive shaft and the furnace body, the fixing bolts of the self-aligning roller bearing, and the drive arm, then lifting the drive shaft so that workers can remove and replace the self-aligning roller bearing. This replacement is difficult and labor-intensive, and it also results in economic losses due to the furnace shutdown, as well as an increased risk of ash leakage due to the removal and installation of the sealing device. Utility Model Content
[0007] In view of this, the purpose of this application is to provide a grate drive mechanism and a waste incinerator to solve the problems of large workload, large economic losses and increased risk of ash leakage when replacing self-aligning roller bearings in existing waste incinerators.
[0008] To achieve the above-mentioned technical objectives, the first aspect of this application provides a grate transmission mechanism, including: a power component, a drive arm, a self-aligning roller bearing assembly, a transmission shaft, and a shaft seal;
[0009] The input end of the drive shaft extends outside the grate wall;
[0010] The shaft seal is disposed between the drive shaft and the grate wall;
[0011] The self-aligning roller bearing assembly can be detachably connected to the input end of the drive shaft;
[0012] The drive arm is detachably connected to the input end of the drive shaft;
[0013] The output end of the power component is connected to the drive arm.
[0014] Furthermore, the self-aligning roller bearing assembly includes: a self-aligning roller bearing, a bearing base, and a bearing cover;
[0015] The self-aligning roller bearing can be detachably mounted on the bearing base;
[0016] The self-aligning roller bearing is detachably fitted onto the input end of the drive shaft;
[0017] The bearing cover is mounted above the self-aligning roller bearing and is detachably connected to the bearing base.
[0018] Furthermore, the bearing base can be detachably connected to the outer wall of the grate wall.
[0019] Furthermore, the self-aligning roller bearing assembly includes: a support;
[0020] The support can be detachably connected to the outer wall of the grate wall;
[0021] The bearing base is placed on the support.
[0022] Furthermore, the support is bolted to the outer wall of the grate wall.
[0023] Furthermore, the bearing base is bolted to the outer wall of the grate wall.
[0024] Furthermore, the power component is a hydraulic cylinder.
[0025] A second aspect of this application provides a waste incinerator, including the grate drive mechanism described in any of the above claims.
[0026] Furthermore, it also includes: movable grate beams;
[0027] A fork is fixed on the drive shaft of the grate drive mechanism;
[0028] The movable grate beam can be swayed back and forth;
[0029] The shift fork abuts against the drive shaft.
[0030] Furthermore, it also includes: support bearings;
[0031] The support bearing is located inside the grate wall and is sleeved on the drive shaft.
[0032] The supporting bearing is a split bearing.
[0033] As can be seen from the above technical solutions, this application provides a grate drive mechanism and a waste incinerator; wherein, the grate drive mechanism includes: a power component, a drive arm, a self-aligning roller bearing assembly, a drive shaft, and a shaft seal; the input end of the drive shaft extends outside the grate wall; the shaft seal is disposed between the drive shaft and the grate wall; the self-aligning roller bearing assembly is detachably connected to the input end of the drive shaft; the drive arm is detachably connected to the input end of the drive shaft; the output end of the power component is connected to the drive arm.
[0034] When the self-aligning roller bearing assembly needs replacement, workers can directly disassemble the assembly by removing the drive arm. During replacement, workers do not need to disassemble the shaft seal and the sealing devices on the grate wall, reducing workload, simplifying replacement, and improving efficiency. Furthermore, replacement only requires shutting down the power unit without stopping the waste incinerator, effectively minimizing economic losses. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 A side view of a grate drive mechanism provided in an embodiment of this application;
[0037] Figure 2 For along Figure 1 A cross-sectional view of AA in the diagram;
[0038] In the diagram: 10, power assembly; 20, drive arm; 30, self-aligning roller bearing assembly; 31, self-aligning roller bearing; 32, bearing base; 33, bearing cover; 34, support; 40, drive shaft; 41, shift fork; 50, shaft seal; 60, grate wall; 61, connecting frame; 70, movable grate beam; 80, support bearing. Detailed Implementation
[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.
[0040] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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 the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable 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 the embodiments of this application according to the specific circumstances.
[0042] Please see Figure 1 and Figure 2 In a first aspect of this application, a grate drive mechanism is provided, comprising: a power assembly 10, a drive arm 20, a self-aligning roller bearing assembly 30, a drive shaft 40, and a shaft seal 50. The input end of the drive shaft 40 extends outside the grate wall 60; the shaft seal 50 is disposed between the drive shaft 40 and the grate wall 60; the self-aligning roller bearing assembly 30 is detachably connected to the input end of the drive shaft 40; the drive arm 20 is detachably connected to the input end of the drive shaft 40; and the output end of the power assembly 10 is connected to the drive arm 20.
[0043] The grate wall 60 can serve as the outer wall of the furnace body. The interior of the grate wall 60 belongs to the furnace body. In this embodiment, the shaft seal 50 can provide a rotational seal for the drive shaft 40 and the grate wall 60, and it can be a shaft seal using existing technology; therefore, its specific structure will not be described in detail in this embodiment. Similarly, in this embodiment, the way the drive arm 20 is detachably connected to the drive shaft 40 can also follow existing technology, for example, by locking the drive arm to the drive shaft 40 with a tightening coupling sleeve, and the drive arm 20 can be disassembled after the bolts are loosened.
[0044] In this embodiment, since the input end of the drive shaft 40 is located outside the grate wall 60, the power assembly 10, drive arm 20, and self-aligning roller bearing assembly 30 can all be located outside the grate wall 60. This not only facilitates the disassembly and replacement of the self-aligning roller bearing assembly 30, but also makes maintenance of the power assembly 10 and drive arm 20 easier.
[0045] In this embodiment, the self-aligning roller bearing assembly 30 includes: a self-aligning roller bearing 31, a bearing base 32, and a bearing cover 33; the self-aligning roller bearing 31 is detachably mounted on the bearing base 32; the self-aligning roller bearing 31 is detachably sleeved on the input end of the drive shaft 40; the bearing cover 33 is mounted above the self-aligning roller bearing 31 and is detachably connected to the bearing base 32.
[0046] When it is necessary to replace the self-aligning roller bearing assembly 30, the operator only needs to shut down the power assembly 10 and then disassemble the drive arm 20, bearing base 32 and bearing cover 33 in sequence. This will disconnect the upper and lower parts of the self-aligning roller bearing 31 from the drive shaft 40. After heating to increase the inner diameter of the self-aligning roller bearing 31, the self-aligning roller bearing 31 can be removed without damaging the shaft seal 50 and the original sealing device of the furnace body. This can effectively reduce the workload of the operator and reduce the difficulty of operation, while avoiding the economic losses caused by the shutdown of the incinerator.
[0047] In one implementation, the self-aligning roller bearing 31 and the drive shaft 40 are connected by a sleeve and an interference fit. When disassembly is required, the self-aligning roller bearing 31 can be removed from the drive shaft 40 by heating it.
[0048] In this embodiment, the bearing base 32 and the bearing cover 33 can be detachably connected by bolts. The bearing base 32 and the bearing cover 33 provide protection and support for the self-aligning roller bearing 31.
[0049] In one implementation, the bearing base 32 can be detachably connected to the outer wall of the grate wall 60; specifically, the bearing base 32 can be detachably connected to the outer wall of the grate wall 60 by bolts.
[0050] The weight of the drive shaft 40 can be transmitted to the grate wall 60 through the self-aligning roller bearing 31 and the bearing base 32, thereby providing support for the input end of the drive shaft 40.
[0051] In one embodiment, the self-aligning roller bearing assembly 30 includes: a support 34; the support 34 is detachably connected to the outer wall of the grate wall 60; and a bearing base 32 is placed on the support 34.
[0052] Specifically, a connecting frame 61 can be welded onto the grate wall 60. The support 34 is detachably mounted on the connecting frame 61 by bolts to provide support for the bearing base 32.
[0053] In one implementation, the power assembly 10 can be mounted on the connecting frame 61.
[0054] In one implementation, the power unit 10 is a hydraulic cylinder.
[0055] When the hydraulic cylinder is started, the output end of the hydraulic cylinder can reciprocate, thereby driving the transmission shaft 40 to perform forward and reverse reciprocating motion, and then driving the movable grate beam to reciprocate back and forth through the transmission shaft 40.
[0056] The second aspect of this application provides a waste incinerator, including the grate drive mechanism of any of the above.
[0057] In one embodiment, the waste incinerator includes: a movable grate beam 70; a fork 41 fixed on a drive shaft 40 in the grate drive mechanism; the movable grate beam 70 is configured to swing back and forth; and the fork 41 abuts against the drive shaft 40.
[0058] When the power assembly 10 drives the transmission shaft 40 to perform forward and reverse reciprocating motion, the shift fork 41 will swing back and forth under the drive of the transmission shaft 40, thereby enabling the movable grate beam 70 to move back and forth.
[0059] In one embodiment, the system further includes a support bearing 80; the support bearing 80 is disposed inside the grate wall 60 and is sleeved on the drive shaft 40. As one implementation, the support bearing 80 is a split bearing.
[0060] In this application, the waste incinerator is equipped with an openable and closable door. When the support bearing 80 needs to be disassembled and replaced, workers can enter the furnace through the door, loosen the screws on the support bearing 80, and then remove it. When the self-aligning roller bearing assembly 30 needs to be replaced, since this is done outside the furnace, it does not affect the use of the support bearing 80.
[0061] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A grate drive mechanism, characterized in that, include: Power assembly (10), drive arm (20), self-aligning roller bearing assembly (30), drive shaft (40) and shaft seal (50); The input end of the drive shaft (40) extends outside the grate wall (60); The shaft seal (50) is disposed between the drive shaft (40) and the grate wall (60); The self-aligning roller bearing assembly (30) is detachably connected to the input end of the drive shaft (40); The drive arm (20) is detachably connected to the input end of the drive shaft (40); The output end of the power assembly (10) is connected to the drive arm (20). The self-aligning roller bearing assembly (30) includes: a self-aligning roller bearing (31), a bearing base (32), and a bearing cover (33). The self-aligning roller bearing (31) can be detachably mounted on the bearing base (32); The self-aligning roller bearing (31) is detachably fitted onto the input end of the drive shaft (40); The bearing cover (33) is mounted above the self-aligning roller bearing (31) and is detachably connected to the bearing base (32).
2. The grate transmission mechanism according to claim 1, characterized in that, The bearing base (32) is detachably connected to the outer wall of the grate wall (60).
3. The grate drive mechanism according to claim 1 or 2, characterized in that, The self-aligning roller bearing assembly (30) includes: a support (34); The support (34) can be detachably connected to the outer wall of the grate wall (60); The bearing base (32) is placed on the support (34).
4. The grate transmission mechanism according to claim 3, characterized in that, The support (34) is bolted to the outer wall of the grate wall (60).
5. The grate transmission mechanism according to claim 2, characterized in that, The bearing base (32) is bolted to the outer wall of the grate wall (60).
6. The grate drive mechanism according to claim 1, characterized in that, The power component is a hydraulic cylinder.
7. A waste incinerator, characterized in that, Includes the grate drive mechanism as described in any one of claims 1 to 6.
8. The waste incinerator according to claim 7, characterized in that, Also includes: Movable grate beam (70); A fork (41) is fixed on the drive shaft (40) of the grate drive mechanism. The movable grate beam (70) can be swayed back and forth; The shift fork (41) abuts against the drive shaft (40).
9. The waste incinerator according to claim 7, characterized in that, Also includes: Support bearing (80); The support bearing (80) is located inside the grate wall (60) and is sleeved on the drive shaft (40).
10. The waste incinerator according to claim 9, characterized in that, The support bearing (80) is a split bearing.