Segmented gear sealing and lubricating device

Abstract

The utility model discloses a sectional type gear sealing and lubricating device which comprises a sealing shell and a lubricating oil pool, the sealing shell is arranged on an open type gear in a covering mode, the two sides of the sealing shell are matched with a rotary kiln provided with the open type gear in a sealing mode, a small gear is arranged on the lower portion in the sealing shell in a rotating mode, and a rotating shaft of the small gear extends out of the sealing shell and is connected with a driving motor. The small gear is meshed with the open gear, the lubricating oil pool is arranged below the sealing shell and communicated with the sealing shell, the small gear rotates to stir lubricating oil in the lubricating oil pool to lubricate the open gear, the sealing shell comprises a plurality of sealing shell units A, the sealing shell units A are connected end to end, every two adjacent sealing shell units A are detachably connected, and the sealing shell units A and the sealing shell units B are detachably connected. The sealing shell unit A located on the lower portion extends downwards to form a sealing shell unit B. The small gear is rotationally arranged in the sealing shell unit B. The lubricating oil pool is communicated with the sealing shell unit B. The device is convenient to manufacture and install, and is easy to overhaul and clean.

Description

Technical Field

[0001] The utility model relates to a segmented gear sealing and lubricating device, belonging to the technical field of cement processing equipment. Background Art

[0002] Open gear drives are widely used in large production equipment in industries such as metallurgy, cement, electric power, paper making, and chemical industry, such as ball mills, rotary kilns, dryers, granulators, etc. Especially in the cement industry, due to the large size, high load, harsh operating conditions of open gear drives, and the special conditions of being easily eroded by dust and water, it affects the service life of gears. Therefore, it is very important to carry out dust and water proof sealing and gear lubrication for gears.

[0003] In the prior art, the diameter specifications of open gears are getting larger and larger, which increases the manufacturing difficulty of gear seals, makes installation and adjustment difficult, and leads to poor sealing effects due to installation problems, resulting in problems such as dust, rainwater infiltration, and oil leakage. The existing gear lubrication uses oil bath lubrication. Affected by the gear speed, when the gear speed is too high, the gear lubricating oil is thrown away from the lubricating tooth surface and the lubricating oil consumption increases. When the gear speed is too low, an oil film cannot be generated and effective lubrication cannot be achieved. Summary of the Invention

[0004] The purpose of the utility model is to provide a segmented gear sealing and lubricating device to solve the technical defect that the sealing and lubricating device of open gears in the prior art is difficult to manufacture and install.

[0005] To solve the above problems, the technical solution adopted by the utility model is: a segmented gear sealing and lubricating device, including a sealing shell and a lubricating oil pool. The sealing shell covers the open gear, and both sides of the sealing shell are hermetically matched with the rotary kiln on which the open gear is installed. And in the use state, the rotary kiln can rotate relative to the sealing shell. A small gear is rotatably arranged at the lower part inside the sealing shell. The rotating shaft of the small gear extends out of the sealing shell and is connected to a driving motor. The small gear meshes with the open gear to drive the rotary kiln to rotate. The lubricating oil pool is arranged below the sealing shell and is communicated with the sealing shell. The small gear rotates to stir the lubricating oil in the lubricating oil pool to lubricate the open gear. The sealing shell includes a plurality of sealing shell units A. The plurality of sealing shell units A are connected end to end. Adjacent two sealing shell units A are detachably connected. One of the sealing shell units A located below extends downward to form a sealing shell unit B. The small gear is rotatably arranged in the sealing shell unit B. The lubricating oil pool is communicated with the sealing shell unit B. The sealing shell in the utility model is composed of a plurality of sealing shell units A. Each single sealing shell unit A is manufactured separately, which is more convenient for manufacturing. And the weight of each sealing shell unit A in the utility model is small. The utility model is convenient for assembly, thus facilitating the overall installation of the utility model.

[0006] As a further improvement of the present utility model, an oil ladle is rotatably arranged in the lubricating oil sump. The oil ladle is in contact with the pinion gear. The rotation of the pinion gear drives the oil ladle to rotate, which is used to scoop up the lubricating oil in the lubricating oil sump upward to the pinion gear, and then lubricate the open gear through the contact between the pinion gear and the open gear. The present utility model is provided with an oil ladle. The rotation of the pinion gear drives the oil ladle to rotate. The oil ladle scoops up the lubricating oil upward to the pinion gear, and then the open gear is lubricated through the meshing of the pinion gear and the open gear. The present utility model does not need to add lubricating oil in time when the liquid level of the lubricating oil drops, reducing the number of times of adding lubricating oil. At the same time, an oil film can be generated on the pinion gear through the oil ladle, and the lubrication effect is better.

[0007] As a further improvement of the present utility model, the sealing shell unit A includes a sealing shell bottom plate and two sealing shell side plates. The two sealing shell side plates are fixedly connected to both sides of the two sealing shell bottom plates respectively. A sealing shell end face flange is fixedly connected to each end of the sealing shell bottom plate and the two sealing shell side plates, which is used for the detachable connection of two adjacent sealing shell units A. In the present utility model, the sealing shell bottom plate and the sealing shell side plates of the sealing shell unit A enclose the open gear for sealing, and the adjacent sealing shell units A are connected by the sealing shell end face flanges, which is more convenient for the assembly of the present utility model.

[0008] As a further improvement of the present utility model, two oil baffle plates are fixed on the sealing shell bottom plate, and an oil guide plate is fixed on each side of the two sealing shell side plates facing each other. The end of the oil guide plate close to the open gear is bent towards the direction of the oil baffle plate. When the open gear rotates, the lubricating oil on it splashes onto the oil baffle plate, drips downward onto the oil guide plate, and flows back to the lubricating oil sump through the oil guide plate. In the present utility model, the rotation of the open gear throws the lubricating oil onto the oil baffle plate, then drips along the oil baffle plate onto the oil guide plate, and flows downward along the oil guide plate back to the lubricating oil sump, realizing the recycling of the lubricating oil.

[0009] As a further improvement of the present utility model, an end face sealing ring is arranged at the part where the two sealing side plates contact the rotary kiln. The present utility model is provided with an end face sealing ring to enhance the sealing effect between the present utility model and the rotary kiln and prevent the lubricating oil from flowing out along the rotary kiln.

[0010] As a further improvement of the present utility model, the lubricating oil sump is arranged on a fixed object. The top and one side of the lubricating oil sump are open. An inspection door A is detachably installed at the side opening of the lubricating oil sump, which is used to block the opening on one side of the lubricating oil sump. The top of the lubricating oil sump far from the inspection door A is detachably connected to the sealing shell unit B by bolts, and the top of the inspection door A is detachably connected to the sealing shell unit B. By removing the inspection door A, the lubricating oil sump can be pulled out from under the sealing shell unit B in the direction away from the inspection door A. The present utility model is provided with an inspection door A, which can facilitate the inspection and cleaning of the lubricating oil sump itself and the oil ladle therein.

[0011] As a further improvement of the present utility model, a plurality of oil drain ports are provided at the lower part of the inspection door A, which are used to drain the lubricating oil in the lubricating oil pool before opening the inspection door A. The present utility model discharges the lubricating oil in the lubricating oil pool through the oil drain ports, avoiding the overflow of the lubricating oil when the inspection door is opened.

[0012] As a further improvement of the present utility model, an inspection door B is provided on the sealing shell unit A. Opening the inspection door B is used to inspect and clean the open gear. The present utility model is provided with the inspection door B, which can conveniently inspect and clean the open gear.

[0013] As a further improvement of the present utility model, an oil filling port is provided on the sealing shell unit B, which is used to add lubricating oil to the lubricating oil pool. The present utility model is convenient to add lubricating oil to the lubricating oil pool through the oil filling port.

[0014] As a further improvement of the present utility model, it further includes two support columns respectively located on both sides of the sealing shell. The bottom end of the support column is fixed on the ground, and the top end of the support column is fixedly connected with the sealing shell unit A, which is used to support the sealing shell upward. The present utility model is supported by the support column, improving the overall stability of the present utility model.

[0015] In summary, the beneficial effects of the present utility model are as follows: The present utility model is convenient to manufacture and install, and is easy to be inspected and cleaned. The present utility model also has the advantage of simple structure. Brief Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of the present utility model.

[0017] Figure 2 is Figure 1 the A-A cross-sectional view of

[0018] Figure 3 is Figure 1 the partial enlarged view at B in

[0019] Wherein: 1. Sealing shell; 2. Lubricating oil pool; 3. Open gear; 4. Rotary kiln; 5. Pinion; 6. Sealing shell unit A; 7. Sealing shell unit B; 8. Oil ladle; 9. Sealing shell bottom plate; 10. Sealing shell side plate; 11. Sealing shell end face flange; 12. Oil baffle; 13. Oil guide plate; 14. End face sealing ring; 15. Inspection door A; 16. Oil drain port; 17. Inspection door B; 18. Oil filling port; 19. Support column. Detailed Description of the Preferred Embodiment

[0020] The following further describes the specific embodiments of the present utility model with reference to the drawings.

[0021] Such as Figures 1 to 3The segmented gear sealing and lubricating device shown includes a sealing housing 1 and a lubricating oil sump 2. The sealing housing 1 covers an open gear 3, where the open gear 3 is installed on a rotary kiln 4 and is used to drive the rotary kiln 4 to rotate. Both sides of the sealing housing 1 are located on both sides of the open gear 3 and are in sealing cooperation with the rotary kiln 4 on which the open gear 3 is installed. In the present utility model, the sealing housing 1 is fixed in the use state, while the rotary kiln 4 can rotate relative to the sealing housing 1. In the present utility model, a pinion 5 is rotatably arranged in the lower part of the sealing housing 1. The rotating shaft of the pinion 5 is rotatably connected to the sealing housing 1, and the rotating shaft of the pinion 5 extends out of the sealing housing 1 and is connected to a driving motor (not shown in the figure). The driving motor drives the pinion 5 to rotate. The pinion 5 meshes with the open gear 3, and the rotation of the pinion 5 drives the meshing open gear 3 to rotate, thereby driving the rotary kiln 4 and the open gear 3 to rotate synchronously. In the present utility model, the lubricating oil sump 2 is arranged below the sealing housing 1 and is communicated with the sealing housing 1. The rotation of the pinion 5 stirs the lubricating oil in the lubricating oil sump 2 to lubricate itself and the open gear 3.

[0022] The sealing housing 1 in the present utility model includes a plurality of sealing housing units A6. The part of the sealing housing unit A6 for contacting the rotary kiln 4 is arc-shaped. The plurality of sealing housing units A6 are connected end to end, and two adjacent sealing housing units A6 are detachably connected by bolts. The lowermost sealing housing unit A6 extends downward to form a sealing housing unit B7 with an open bottom end. The pinion 5 is rotatably arranged in the sealing housing unit B7. The rotating shaft of the pinion 5 is rotatably connected to the sealing housing unit B7 by a bearing. The lubricating oil sump 2 is communicated with the sealing housing unit B7, and the sealing oil sump 2 has a structure with an open top.

[0023] In the present utility model, an oil spoon 8 is rotatably arranged in the lubricating oil sump 2. Both ends of the oil spoon 8 are rotatably connected to connecting seats fixed on the inner wall of the lubricating oil sump 2, and the length direction of the oil spoon 2 is parallel to the rotating shaft of the pinion 5. The oil spoon 8 is located directly below the pinion 5, and the distance between the center line of the oil spoon 8 and the center line of the pinion 5 is such that the pinion 5 can contact the oil spoon 8. In this way, the rotation of the pinion 5 can stir the oil spoon 8 to rotate, thereby stirring the lubricating oil in the lubricating oil sump 2 upward. In the present utility model, at least the bottom of the oil spoon 8 is immersed in the lubricating oil. In the present utility model, a plurality of grooves are evenly arranged on the oil spoon 8 in the circumferential direction. On the one hand, it is convenient for the pinion 5 to stir the oil spoon 8 to rotate, and on the other hand, it is also convenient for the oil spoon 8 to stir the lubricating oil in the lubricating oil sump 2 upward. In the present utility model, it is only necessary for the oil spoon 8 to contact the pinion 5. The rotation of the pinion 5 stirs the oil spoon 8 to rotate, which is used to stir the lubricating oil in the lubricating oil sump 2 upward to the pinion 5, and then lubricate the open gear 3 through the contact between the pinion 5 and the open gear 3. In the present utility model, a gear can also be used as the oil spoon 8. Through the meshing of this gear with the pinion 5, the lubricating oil in the lubricating oil sump is smeared on the pinion 5.

[0024] The sealing shell unit A6 in the present utility model includes a sealing shell bottom plate 9 and two sealing shell side plates 10. The two sealing shell side plates 10 are fixedly connected to both sides of the two sealing shell bottom plates 9 respectively. The present utility model can use a metal plate to form the sealing shell unit A6 through two 90-degree bends. At both ends of the sealing shell bottom plate 9 and the two sealing shell side plates 10, a sealing shell end flange 11 is fixedly connected by welding. The sealing shell end flange 11 is used to detachably connect two adjacent sealing shell units A6 by using bolts and nuts. To improve the sealing performance, the present utility model can set a sealing sheet between the sealing shell end flanges 11.

[0025] In the present utility model, two oil baffle plates 12 are fixedly welded on the sealing shell bottom plate 9. The two oil baffle plates 12 are symmetrically arranged and are located near the sealing shell side plates 10. On one side of the two sealing shell side plates 10 facing each other, an oil guide plate 13 is fixed. The part of the oil guide plate 13 fixedly connected to the sealing shell side plate 10 is perpendicular to the oil baffle plate. One end of the oil guide plate 13 close to the open gear 3 is bent in the direction of the oil baffle plate 12 and is parallel to the oil baffle plate 12. Therefore, the cross-sectional shape of the oil guide plate 13 in the present utility model is L-shaped. After multiple sealing shell units A6 are connected, the oil guide plates 13 in the sealing shell unit A6 are spliced to form an oil guide groove. When the open gear 3 rotates, the lubricating oil on it splashes onto the oil baffle plate 12 of the upper sealing shell unit A6 and drips downward onto the oil guide plate 13, and then flows back downward into the lubricating oil pool 2 through the oil guide plate 13, realizing the recycling of the lubricating oil. In the present utility model, an end face sealing ring 14 is provided at the part where the two sealing shell side plates 10 contact the rotary kiln 4. The structure of the end face sealing ring 14 is prior art, and the end face sealing ring 14 is detachably installed on the sealing shell side plate 10 by bolts.

[0026] The lubricating oil pool 2 is arranged on a fixed object. The fixed object in the present utility model is the ground. The top and one side of the lubricating oil pool 2 are open. An inspection door A15 is detachably installed at the side opening of the lubricating oil pool 2 by bolts. The inspection door A15 is used to block the opening on one side of the lubricating oil pool 2. The top of the lubricating oil pool 2 away from the inspection door A15 is detachably connected to the sealing shell unit B7 by bolts. The height of the inspection door A15 is greater than the height of the lubricating oil pool 2. The top of the inspection door A15 is detachably connected to the sealing shell unit B7 by bolts. After removing the inspection door A15, the lubricating oil pool 2 can be pulled out from below the sealing shell unit B7 in the direction away from the inspection door A15, so as to facilitate the inspection and cleaning of the oil scoop 8 in the lubricating oil pool 2. In the present utility model, a plurality of oil drain ports 16 are opened at the lower part of the inspection door A15. The oil drain ports 16 are welded with oil drain pipes, and a valve is arranged at the end of the oil drain pipe. Opening the valve is used to drain the lubricating oil in the lubricating oil pool 2 before opening the inspection door A15.

[0027] In the utility model, a maintenance door B17 is provided on the sealing shell bottom plate 9 of the sealing shell unit A6. Opening the maintenance door B17 can be used for the maintenance and cleaning of the open-type gear 3. Optimally, the utility model is provided with a maintenance door B17 on each sealing shell unit A6 except for the one communicating with the sealing shell unit B7. In order to facilitate the addition of lubricating oil into the lubricating oil sump 2, an oil filling port 18 is provided on the sealing shell unit B7. Opening the oil filling port 18 can add lubricating oil into the lubricating oil sump 2.

[0028] In order to improve the stability of the sealing shell 1 in the utility model, two support columns 19 are provided on both sides of the sealing shell 1 respectively. The bottom ends of the support columns 19 are fixed to the ground, and the top ends of the support columns 19 are fixedly welded to the sealing shell bottom plate 9 of the sealing shell unit A6. The support columns 19 are used to support the sealing shell 1 upward.

[0029] Parts not specifically described in the above specification are all prior arts or can be realized by prior arts. Moreover, the specific implementation cases described in the utility model are only the preferred implementation cases of the utility model, and are not used to limit the implementation scope of the utility model. That is, equivalent changes and modifications made to the content within the scope of the patent application of the utility model should all be regarded as the technical scope of the utility model.

Claims

1. A segmented gear sealing and lubricating device, comprising a sealing shell (1) and a lubricating oil pool (2), wherein the sealing shell (1) is covered on an open gear (3), and both sides of the sealing shell (1) are sealed and matched with a rotary kiln (4) on which the open gear (3) is installed, and the rotary kiln (4) can rotate relative to the sealing shell (1) in a state of use, and a small gear (5) is rotatably arranged at the lower part of the sealing shell (1), and the rotating shaft of the small gear (5) extends out of the sealing shell (1) and is connected to a driving motor, and the small gear (5) is meshed with the open gear (3) to drive the rotary kiln (4) to rotate, and the lubricating oil pool (2) is arranged below the sealing shell (1) and communicates with the sealing shell (1), and the small gear (5) rotates to move the lubricating oil in the lubricating oil pool (2) to lubricate the open gear (3), characterized in that: The sealing shell (1) comprises a plurality of sealing shell units A (6), the plurality of sealing shell units A (6) being connected end to end, two adjacent sealing shell units A (6) being detachably connected, a sealing shell unit A (6) located at a lower position extending downward to form a sealing shell unit B (7), a pinion (5) being rotatably disposed in the sealing shell unit B (7), and a lubricating oil pool (2) being in communication with the sealing shell unit B (7).

2. The segmented gear sealing lubrication device according to claim 1 is characterized in that: An oil spoon (8) is rotatably arranged in the lubricating oil pool (2), and the oil spoon (8) is in contact with the pinion gear (5). The pinion gear (5) rotates to drive the oil spoon (8) to rotate, so as to drive the lubricating oil in the lubricating oil pool (2) upward onto the pinion gear (5), and then lubricate the open gear (3) through the contact between the pinion gear (5) and the open gear (3).

3. The segmented gear seal lubrication device according to claim 1 is characterized in that: The sealing shell unit A (6) comprises a sealing shell bottom plate (9) and two sealing shell side plates (10), wherein the two sealing shell side plates (10) are respectively fixedly connected to two sides of the two sealing shell bottom plates (9), and a sealing shell end face flange (11) is fixedly connected to each end of the sealing shell bottom plate (9) and the two sealing shell side plates (10) for detachably connecting two adjacent sealing shell units A (6).

4. The segmented gear seal lubrication device according to claim 3 is characterized in that: Two oil baffle plates (12) are fixed on the bottom plate (9) of the sealing housing, and an oil guide plate (13) is fixed on each of the two sealing housing side plates (10) facing each other. One end of the oil guide plate (13) close to the open gear (3) is bent toward the oil baffle plate (12). When the open gear (3) rotates, lubricating oil thereon splashes onto the oil baffle plate (12), drips downward onto the oil guide plate (13), and flows downward back into the lubricating oil pool (2) through the oil guide plate (13).

5. The segmented gear seal lubrication device according to claim 3 is characterized in that: End face sealing rings (14) are provided at the locations where the two sealing shell side plates (10) contact the rotary kiln (4).

6. The segmented gear seal lubrication device according to claim 1 is characterized in that: The lubricating oil pool (2) is arranged on a fixed object. The top and one side of the lubricating oil pool (2) are open. An inspection door A (15) is detachably installed at the side opening of the lubricating oil pool (2) for blocking the opening on one side of the lubricating oil pool (2). The top of the side of the lubricating oil pool (2) away from the inspection door A (15) is detachably connected to the sealing shell unit B (7) by bolts. The top of the inspection door A (15) is detachably connected to the sealing shell unit B (7). After the inspection door A (15) is removed, the lubricating oil pool (2) can be pulled out from under the sealing shell unit B (7) in a direction away from the inspection door A (15).

7. The segmented gear seal lubrication device according to claim 6 is characterized in that: A plurality of oil drain ports (16) are provided at the lower portion of the inspection door A (15) for draining the lubricating oil in the lubricating oil pool (2) before the inspection door A (15) is opened.

8. The segmented gear seal lubrication device according to claim 1, characterized in that: An inspection door B (17) is provided on the sealing housing unit A (6). The inspection door B (17) is opened to inspect and clean the open gear (3).

9. The segmented gear seal lubrication device according to claim 1, characterized in that: The sealing shell unit B (7) is provided with an oil filling port (18) for adding lubricating oil into the lubricating oil pool (2).

10. The segmented gear seal lubrication device according to claim 1, characterized in that: It also comprises two support columns (19) respectively located on both sides of the sealing shell (1), the bottom ends of the support columns (19) are fixed on the ground, and the top ends of the support columns (19) are fixedly connected to the sealing shell unit A (6) for supporting the sealing shell (1) upwards.

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