Rotary kiln cement preparation device
By designing a gear lubrication system in the rotary kiln cement preparation device, the gears achieve self-lubrication and lubricate the large gear of the rotary kiln through their own rotation, which solves the problems of labor-intensive and uneven lubrication in traditional lubrication methods, and improves the service life and working efficiency of the gears.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ZHUOPANGMAI TECHNOLOGY CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-17
AI Technical Summary
In traditional rotary kiln cement preparation equipment, gear lubrication is labor-intensive and difficult to achieve even coverage, leading to increased localized wear on the gears.
A gear lubrication system was designed. By installing a lubrication box under the gear, the gear achieves self-lubrication through its rotation. The gear also lubricates the large gear on the rotary kiln by being coated with lubricating oil, thereby reducing friction and wear.
This achieves self-lubrication of the gears, reduces friction between the gears and the large gear of the rotary kiln, extends the service life of the gears, and improves working efficiency.
Smart Images

Figure CN224136335U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary kiln technology, and in particular to a rotary kiln cement preparation device. Background Technology
[0002] The rotary kiln involves processes such as gas flow, fuel combustion, heat transfer, and material movement. Its core function is to ensure complete fuel combustion, effectively transferring heat to the material, causing a series of physicochemical changes in the material after receiving heat, ultimately forming the finished clinker. The rotary kiln is an important processing equipment in cement production. It is primarily driven by an external drive unit that rotates a gear meshing with a large gear on the kiln shell.
[0003] Rotary kilns rely on gear transmission for operation, and traditional lubrication methods mostly involve periodically applying lubricating oil manually. Manual application not only consumes a lot of manpower and time, but also makes it difficult to ensure that the lubricating oil evenly covers the gears, easily creating lubrication dead zones and leading to accelerated local wear of the gears.
[0004] Therefore, it is necessary to provide a new rotary kiln cement preparation device to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a rotary kiln cement preparation device with good gear lubrication effect and high working efficiency.
[0006] The rotary kiln cement preparation device provided by this utility model includes: a base and two support seats symmetrically installed on the base, one of the support seats being welded to the base and the other support seat being detachably installed on the base. A transverse rotating shaft is rotatably connected to the two support seats. Two limiting rings are fixedly sleeved on the rotating shaft, and the two limiting rings are respectively located on both sides of the support seat welded to the base. A gear is sleeved on the rotating shaft. A limiting groove is opened on the inner ring wall of the gear, and a limiting strip is fixedly installed on the rotating shaft and engaged in the limiting groove. A limiting mechanism for limiting the sliding of the limiting gear is installed on the rotating shaft. A detachable mounting mechanism is installed on the base. A lubrication box is installed below the gear, and the lubrication box is restricted to the base by the mounting mechanism. The lower end of the gear is located in the lubrication box and close to its inner bottom.
[0007] Preferably, an L-shaped plate is welded to the side wall of the support base that is detachably connected to the base, and the L-shaped plate is fixedly connected to the base by fixing bolts.
[0008] Preferably, the L-shaped plate is welded with multiple reinforcing ribs.
[0009] Preferably, a positioning hole is provided on the side wall of the base, and a positioning rod inserted into the positioning hole is fixedly installed on the side wall of the support seat that is detachably connected to the base.
[0010] Preferably, the limiting mechanism includes a limiting cylinder sleeved on the rotating shaft. The limiting cylinder is in close contact with one side wall of the gear and is locked to the rotating shaft by a locking bolt. A fixing ring is fixedly sleeved on the rotating shaft, in close contact with the other side wall of the gear, and the fixing ring and the limiting ring are located on the same side.
[0011] Preferably, the mounting mechanism includes two symmetrical top plates, which are detachably connected to the base. Each top plate has a through hole. A connecting pipe is fixedly installed at the bottom of the lubrication box. A connecting bolt is inserted into the through hole and the corresponding connecting pipe. The top plate is fixedly connected to the connecting pipe by the connecting bolt.
[0012] Preferably, a connecting plate that fits the base is welded onto the top plate, and the connecting plate is fixedly connected to the base by connecting bolts.
[0013] Preferably, the lubrication box is fitted with the two top plates with a clearance.
[0014] Compared with related technologies, the rotary kiln cement preparation device provided by this utility model has the following beneficial effects:
[0015] In this invention, a support base and a lubrication box are detachable. By releasing the limiting mechanism from the gear, the gear can be removed from the rotating shaft, facilitating timely replacement of severely worn gears. When the gear rotates, it comes into contact with lubricating oil for self-lubrication. At the same time, the lubricating oil it picks up can also lubricate the large gear on the rotary kiln, effectively reducing friction between the gear and the large gear on the rotary kiln, reducing wear, and extending its service life. The lubrication operation of the gear itself and the large gear on the rotary kiln is achieved by utilizing the gear's rotation, which saves time and effort and has high work efficiency. Attached Figure Description
[0016] Figure 1 A schematic diagram of a preferred embodiment of the rotary kiln cement preparation device provided by this utility model;
[0017] Figure 2 for Figure 1 The diagram shows the structure of the installation mechanism.
[0018] Figure 3 for Figure 1 The diagram shows the structure of the lubrication box.
[0019] Figure 4 for Figure 1 The diagram shows the structure of the limiting mechanism.
[0020] Figure 5 for Figure 1 The diagram shows the structure of the support base;
[0021] Figure 6 for Figure 1 The diagram shows the structure of the gear.
[0022] Figure 7 for Figure 1 The diagram shows the structure of the rotating shaft.
[0023] The following are the labels in the diagram: 1. Base; 11. Positioning hole; 12. Connecting plate; 13. Connecting bolt; 2. Support seat; 21. Positioning rod; 3. Rotating shaft; 31. Limiting ring; 32. Limiting strip; 4. Gear; 41. Limiting slot; 5. Lubrication box; 6. Mounting mechanism; 61. Top plate; 62. Through hole; 63. Connecting pipe; 64. Connecting bolt; 7. Limiting mechanism; 71. Limiting cylinder; 72. Locking bolt; 73. Fixing ring; 8. L-shaped plate; 81. Fixing bolt; 82. Reinforcing rib. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0026] Please see Figures 1 to 7 This utility model provides a rotary kiln cement preparation device, which includes: a base 1 and two support seats 2 symmetrically installed on the base 1. One support seat 2 is welded to the base 1, and the other support seat 2 is detachably installed on the base 1. A transverse rotating shaft 3 is rotatably connected to the two support seats 2. Two limiting rings 31 are fixedly sleeved on the rotating shaft 3, and the two limiting rings 31 are respectively located on both sides of the support seat 2 welded to the base 1. A gear 4 is sleeved on the rotating shaft 3. A limiting groove 41 is opened on the inner ring wall of the gear 4, and a limiting strip 32 is fixedly installed on the rotating shaft 3 and engaged in the limiting groove 41. A limiting mechanism 7 for limiting the sliding of the gear 4 is installed on the rotating shaft 3. A detachable mounting mechanism 6 is installed on the base 1. A lubrication box 5 is installed below the gear 4, and the lubrication box 5 is restricted to the base 1 by the mounting mechanism 6. The lower end of the gear 4 is located in the lubrication box 5 and close to its inner bottom.
[0027] It should be noted that: the lubrication box 5 in this utility model is used to hold lubricating oil. The end of the rotating shaft 3 away from the detachable support 2 is connected to the drive equipment. The gear 4 meshes with the large gear on the rotary kiln to drive the rotation of the rotary kiln. The limiting strip 32 on the rotating shaft 3 is engaged in the limiting slot 41 on the gear 4, allowing the gear 4 to rotate with the rotating shaft 3. The limiting mechanism 7 then limits the gear 4 to prevent it from sliding along the rotating shaft 3. One side of the support 2 is detachable, and the lubrication box 5 is detachable. By releasing the limiting mechanism 7 from the gear 4, the gear 4 can be removed from the rotating shaft 3, facilitating timely cleaning of the severely worn gear 4. Replacement; simultaneously, lubricating oil is placed in the lubrication box 5. When gear 4 rotates, gear 4 will come into contact with the lubricating oil in the lubrication box 5, lubricating it. The lubricating oil adhering to gear 4 will also rotate and be adsorbed by the large gear on the rotary kiln, thus lubricating the large gear on the rotary kiln. When gear 4 rotates, it can come into contact with the lubricating oil to achieve self-lubrication, and at the same time, the lubricating oil adsorbed can also lubricate the large gear on the rotary kiln, effectively reducing the friction between gear 4 and the large gear on the rotary kiln, reducing wear, and extending its service life. The operation of lubricating gear 4 itself and the large gear on the rotary kiln by utilizing the rotation of gear 4 is time-saving, labor-saving, and highly efficient.
[0028] In the embodiments of this utility model, please refer to Figure 5 An L-shaped plate 8 is welded to the side wall of the support base 2, which is detachably connected to the base 1, and the L-shaped plate 8 is fixedly connected to the base 1 by fixing bolts 81.
[0029] It should be noted that the L-shaped plate 8 is fixed to the base 1 by fixing bolts 81, so as to realize the connection and fixation between the support 2 and the base 1, and at the same time make it detachable, so as to facilitate the replacement of the gear 4 later.
[0030] The L-shaped plate 8 has multiple reinforcing ribs 82 welded on it; the reinforcing ribs 82 enhance the overall strength of the L-shaped plate 8, thereby improving the connection stability between the support 2 and the base 1.
[0031] In the embodiments of this utility model, please refer to Figure 2 and Figure 5 A positioning hole 11 is provided on the side wall of the base 1, and a positioning rod 21 inserted into the positioning hole 11 is fixedly installed on the side wall of the support base 2 which is detachably connected to the base 1.
[0032] It should be noted that by opening the positioning hole 11 and installing the positioning rod 21 on the support 2, the support 2 can be positioned when installed with the base 1. At the same time, the positioning rod 21 is inserted into the positioning hole 11 to improve the connection stability between the support 2 and the base 1.
[0033] In the embodiments of this utility model, please refer to Figure 1 , Figure 4 and Figure 7 The limiting mechanism 7 includes a limiting cylinder 71 sleeved on the rotating shaft 3. The limiting cylinder 71 is close to one side wall of the gear 4 and locked to the rotating shaft 3 by a locking bolt 72. A fixing ring 73 is fixedly sleeved on the rotating shaft 3, which is close to the other side wall of the gear 4, and the fixing ring 73 and the limiting ring 31 are located on the same side.
[0034] It should be noted that: the retaining ring 73 limits one side of the gear 4, preventing the gear 4 from sliding to one side of the rotating shaft 3. On the other side, the locking bolt 72 locks and limits the limiting cylinder 71, preventing the gear 4 from sliding to the other side. The gear 4 is limited on the rotating shaft 3. When the gear 4 needs to be replaced, the locking bolt 72 is loosened and the limiting cylinder 71 can be removed from the rotating shaft 3. The operation is convenient and quick.
[0035] In the embodiments of this utility model, please refer to Figure 1 , Figure 2 and Figure 3 The mounting mechanism 6 includes two symmetrical top plates 61, which are detachably connected to the base 1. Both top plates 61 have through holes 62. The bottom of the lubrication box 5 is fixedly installed with a connecting pipe 63. Connecting bolts 64 are inserted into the through holes 62 and the corresponding connecting pipes 63. The top plates 61 are fixedly connected to the connecting pipes 63 through the connecting bolts 64.
[0036] It should be noted that the top plate 61 is connected and fixed to the connecting pipe 63 at the bottom of the lubrication box 5 by the connecting bolt 64. Unscrewing the connecting bolt 64 can limit the position of the lubrication box 5, making it easy to disassemble the lubrication box 5.
[0037] The top of the top plate 61 is located below the bottom of the gear 4, meaning that the top plate 61 will not obstruct the gear 4 from sliding and disassembling on the rotating shaft 3.
[0038] The top plate 61 is welded with a connecting plate 12 that fits the base 1, and the connecting plate 12 is fixedly connected to the base 1 by connecting bolts 13. The connecting plate 12 is fixed to the base 1 by connecting bolts 13. The top plate 61 of different heights can be replaced according to actual needs to achieve height adjustment of the lubrication box 5.
[0039] The lubrication box 5 is fitted with the two top plates 61 with a clearance; that is, the lubrication box 5 can move between the two top plates 61. After the connection between the mounting mechanism 6 and the lubrication box 5 is released, the lubrication box 5 falls onto the base 1 and can move between the two top plates 61, which facilitates the disassembly of the lubrication box 5 and the cleaning of impurities inside the lubrication box 5.
[0040] The working principle of the rotary kiln cement preparation device provided by this utility model is as follows:
[0041] In this invention, the lubrication box 5 is used to hold lubricating oil. The end of the rotating shaft 3 away from the detachable support 2 is connected to the drive equipment. The gear 4 meshes with the large gear on the rotary kiln to drive the rotation of the rotary kiln. The limiting strip 32 on the rotating shaft 3 is locked in the limiting slot 41 on the gear 4, allowing the gear 4 to rotate with the rotating shaft 3. The lubricating oil in the lubrication box 5 is used to lubricate the gear 4 when it rotates. The lubricating oil on the gear 4 is also picked up by the rotating shaft and then picked up by the large gear on the rotary kiln, thus lubricating the large gear on the rotary kiln. The gear 4 can contact the lubricating oil when it rotates, thus achieving self-lubrication. At the same time, the lubricating oil picked up can also lubricate the large gear on the rotary kiln, effectively reducing the friction between the gear 4 and the large gear on the rotary kiln, reducing wear, and extending its service life. The rotation of the gear 4 achieves the lubrication operation of the gear 4 itself and the large gear on the rotary kiln.
[0042] After prolonged use, gear 4 will wear out and needs to be replaced. First, the lubrication box 5 needs to be removed. Unscrew the connecting bolt 64, and the lubrication box 5 will fall between the two top plates 61. Remove the lubrication box 5 from the base 1. Then loosen the fixing bolt 81 to release the connection between the L-shaped plate 8 and the base 1, and it can slide to one side to remove the support seat 2. Then loosen the locking bolt 72 and remove the limiting cylinder 71 from the rotating shaft 3 to release the restriction on gear 4. Gear 4 can then be removed from the rotating shaft 3 for replacement. The operation is convenient and quick, and the bolts provide good stability for the connection between various components.
[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rotary kiln cement preparation device, comprising a base (1) and two support seats (2) symmetrically mounted on the base (1), characterized in that: One of the support seats (2) is welded to the base (1), and the other support seat (2) is detachably installed on the base (1). A transverse rotating shaft (3) is rotatably connected to the two support seats (2). Two limiting rings (31) are fixedly sleeved on the rotating shaft (3), and the two limiting rings (31) are respectively located on both sides of the support seat (2) welded to the base (1). A gear (4) is sleeved on the rotating shaft (3), and a limiting clip is opened on the inner ring wall of the gear (4). The groove (41) and the rotating shaft (3) are fixedly installed with a limiting strip (32) that is engaged in the limiting groove (41). The rotating shaft (3) is equipped with a limiting mechanism (7) for sliding the limiting gear (4). The base (1) is equipped with a detachable mounting mechanism (6). The gear (4) is equipped with a lubrication box (5) below it. The lubrication box (5) is restricted to the base (1) by the mounting mechanism (6). The lower end of the gear (4) is located in the lubrication box (5) and close to its inner bottom.
2. A rotary kiln cement manufacturing apparatus according to claim 1, characterised in that, An L-shaped plate (8) is welded to the side wall of the support base (2) which is detachably connected to the base (1), and the L-shaped plate (8) is fixedly connected to the base (1) by fixing bolts (81).
3. The rotary kiln cement preparation apparatus according to claim 2, characterized in that, Multiple reinforcing ribs (82) are welded onto the L-shaped plate (8).
4. The rotary kiln cement preparation apparatus according to claim 1, characterized in that, The base (1) has a positioning hole (11) on its side wall, and the support (2) which is detachably connected to the base (1) has a positioning rod (21) fixedly installed on its side wall, which is inserted into the positioning hole (11).
5. The rotary kiln cement production apparatus of claim 1, wherein, The limiting mechanism (7) includes a limiting cylinder (71) sleeved on the rotating shaft (3). The limiting cylinder (71) is close to one side wall of the gear (4) and locked to the rotating shaft (3) by a locking bolt (72). A fixing ring (73) is fixedly sleeved on the rotating shaft (3) and is close to the other side wall of the gear (4). The fixing ring (73) and the limiting ring (31) are located on the same side.
6. The rotary kiln cement production apparatus of claim 1, wherein, The mounting mechanism (6) includes two symmetrical top plates (61), which are detachably connected to the base (1). Both top plates (61) have through holes (62). A connecting pipe (63) is fixedly installed at the bottom of the lubrication box (5). A connecting bolt (64) is inserted into the through hole (62) and the corresponding connecting pipe (63). The top plate (61) is fixedly connected to the connecting pipe (63) by the connecting bolt (64).
7. A rotary kiln cement manufacturing apparatus according to claim 6, characterised in that, A connecting plate (12) that fits the base (1) is welded onto the top plate (61), and the connecting plate (12) is fixedly connected to the base (1) by connecting bolts (13).
8. A rotary kiln cement manufacturing apparatus according to claim 6, wherein, The lubrication box (5) is fitted with the two top plates (61) with a clearance.