Fan main shaft sealing device

Abstract

The utility model relates to the field of fan sealing, and discloses a fan main shaft sealing device which comprises an outer shell, a connecting seat is arranged on one side of the outer shell, main shafts are arranged in the outer shell and the connecting seat, an inner shell is arranged between the outer shell and the connecting seat, and one side of the inner shell is fixedly connected with the connecting seat. An abutting groove is formed in the side, close to the inner shell, of the outer shell, a connecting groove and a containing groove are formed in the outer shell, the connecting groove and the containing groove communicate with the abutting groove, the connecting groove is located above the containing groove, and a pressing ring is arranged on the side, close to the outer shell, of the inner shell. According to the technology, the actual service life of the sealing and filling mechanism can be greatly prolonged, rapid adjustment can be conducted in the first time when leakage occurs, adjustment can be rapidly completed only by rotating the multiple sets of connecting bolts, use is convenient, the structure is simple, and maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the fan seal field, concretely is a fan main shaft sealing device. BACKGROUND

[0002] The fan main shaft seal is the key part for ensuring that the fan main shaft bearing and internal structure are not invaded by external environment (such as dust, moisture, corrosive substance etc.). Its sealing performance directly influences the running efficiency, life and reliability of the fan.

[0003] When the main shaft of the fan is sealed, packing is needed, but the packing will cause poor sealing effect or leakage due to wear between the main shaft after long-term use, and when leakage occurs, only the packing can be simply replaced, which needs frequent maintenance and is very inconvenient to use. UTILITY MODEL CONTENTS

[0004] The utility model discloses a fan main shaft sealing device, solved the problem of the background art in the main shaft of the fan is sealed and needs to use packing, but the packing will cause poor sealing effect or leakage due to wear between the main shaft after long-term use, and when leakage occurs, only the packing can be simply replaced, which needs frequent maintenance and is very inconvenient to use.

[0005] The application embodiment provides a fan main shaft sealing device, which comprises an outer shell body, a connecting seat is arranged on one side of the outer shell body, a main shaft is arranged in the outer shell body and the connecting seat, an inner shell body is arranged between the outer shell body and the connecting seat, one side of the inner shell body is fixedly connected with the connecting seat, a abutment groove is formed in the side of the outer shell body close to the inner shell body, a connecting groove and a placing groove are formed in the inner shell body, the connecting groove and the placing groove are in communication with the abutment groove, the connecting groove is located above the placing groove, a compression ring is arranged on the side of the inner shell body close to the outer shell body, the size of the compression ring is matched with the size of the connecting groove, the bottom of the compression ring is arranged as an inclined surface, a sealing filling mechanism is installed in the inner shell body, the sealing filling mechanism comprises two groups of packing, a connecting rubber ring is arranged between the two groups of packing, one side of the compression ring is slidably connected in the connecting groove and the bottom is in abutment with the top of the sealing filling mechanism, a plurality of connecting bolts are arranged outside the outer shell body, a plurality of threaded holes are formed in the inner shell body, and one side of the plurality of connecting bolts is in threaded connection between the outer shell body and the threaded holes.

[0006] By adopting the technical scheme, the outer shell is arranged, in use, the outer shell and the inner shell are threadedly connected through the multiple groups of connecting bolts, and the compression ring is located in the connecting groove and has an inclined bottom surface, so that after long-term use of the sealing filling mechanism, the sealing filling mechanism may be loosened or leaked due to excessive gap caused by wear between the compression ring and the main shaft, at this time, the distance between the outer shell and the inner shell can be continuously reduced by tightening the multiple groups of oil feeding ports, the bottom surface of the compression ring continuously presses the sealing filling mechanism, the connection between the sealing filling mechanism and the main shaft is artificially made more compact, the actual service life of the sealing filling mechanism is greatly improved, and the sealing filling mechanism can be quickly adjusted at the first time in the case of leakage, the adjustment can be quickly completed by rotating the multiple groups of connecting bolts, the device is convenient to use, and the structure is simple and convenient to maintain.

[0007] Optionally, the outer shell is internally provided with a sealing oil groove, the sealing oil groove and the connecting groove are in communication with each other, and the outer shell is provided with an oil feeding port at the top, and the bottom of the oil feeding port extends into the outer shell and is in communication with the sealing oil groove.

[0008] By adopting the technical scheme, the oil feeding port is arranged, in use, lubricating oil can be directly added into the device through the oil feeding port, wear efficiency can be further reduced, and the lubricating oil can also play a sealing effect under the rotation of the main shaft and the sealing filling mechanism, so that the sealing efficiency is improved while wear is further reduced.

[0009] Optionally, a plurality of springs are arranged between the outer shell and the inner shell, and the plurality of springs are arranged in an interlaced manner with the plurality of connecting bolts.

[0010] By adopting the technical scheme, the spring is arranged, in use, a supporting force can be applied between the outer shell and the inner shell, the stability between the outer shell and the inner shell is improved during use of the device, and the practicability of the device is improved.

[0011] Optionally, an inner sealing ring is arranged between the outer shell and the inner shell, and the bottom surface of the inner sealing ring is located at the top of the compression ring and extends to the inside of the abutting groove on one side.

[0012] By adopting the technical scheme, the inner sealing ring is arranged, in use, the sealing property between the compression ring and the connecting groove can be further improved, the possibility of leakage is further reduced, and the inner sealing ring can serve as a buffer for movement between the outer shell and the inner shell, and the practicability is further improved.

[0013] Optionally, the lower part of the outer shell is provided with an oil outlet groove, one end of the oil outlet groove is in communication with the sealing oil groove, the other end is in communication with the outside, the outer side of the oil outlet groove is provided with a sealing cap, and the sealing cap is threadedly connected with one end of the oil outlet groove.

[0014] By adopting the above technical scheme, the oil outlet groove is arranged, and after frequent wear between the main shaft and the sealing filling mechanism during use, the lubricating property of the lubricating oil may be poor, the oil outlet groove can be matched with the oil outlet at the top to replace and clean the lubricating oil in the device, and the lubricating property is improved.

[0015] Optionally, the front surface of the outer shell is provided with an external connection groove, and the internal surface of the external connection groove is provided with an external sealing ring.

[0016] By adopting the above technical scheme, the external sealing ring is arranged, and the external shell can be sealed during use, so that the external dust and the like are prevented from entering between the external shell and the rotating shaft, and the practicability of the device is further improved.

[0017] Optionally, the internal surface of the connecting rubber ring is provided with a plurality of penetrating holes, and the plurality of penetrating holes penetrate the connecting rubber ring.

[0018] By adopting the above technical scheme, the penetrating holes are arranged, and the lubricating oil can be more fully spread between the sealing filling mechanism and the main shaft through the penetrating holes during use, and the lubricating effect is further improved.

[0019] Optionally, the internal surface of the plurality of springs is provided with a plurality of stable telescopic rods, and the two ends of the plurality of stable telescopic rods are fixedly connected with the outer shell and the internal shell respectively.

[0020] By adopting the above technical scheme, the stable telescopic rods are arranged, which can prevent the spring from deviating during use, prolong the service life of the spring, and improve the practicability of the device.

[0021] Compared with the prior art, the beneficial effects of the technical scheme of the present application are as follows:

[0022] 1、The technical scheme of the present application can better seal the filling mechanism. When in use, the outer shell and the inner shell are connected by multiple sets of connecting bolts, and the compression ring is located inside the connecting groove, and the bottom surface of the compression ring is inclined. Therefore, after long-term use, the sealing filling mechanism may be loose or have a large gap due to wear between the main shaft, which may cause leakage. At this time, the distance between the outer shell and the inner shell can be continuously reduced by tightening the multiple oil outlets, and the bottom inclined surface of the compression ring can continuously press the sealing filling mechanism, thereby making the connection between the sealing filling mechanism and the main shaft more secure. This can greatly improve the actual service life of the sealing filling mechanism, and can quickly adjust the device in the first time when leakage occurs. Only the multiple connecting bolts need to be rotated to quickly complete the adjustment, which is convenient to use and simple in structure and easy to maintain.

[0023] 2、By setting the spring, a supporting force can be applied between the outer shell and the inner shell during use, which can improve the stability between the outer shell and the inner shell during use of the device and improve the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features, objects and advantages of the present application will become more apparent after reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present application;

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the present application;

[0028] Figure 4 It is Figure 3 the enlarged structure schematic diagram of A;

[0029] Figure 5 It is Figure 3 the enlarged structure schematic diagram of B.

[0030] In the figure: 1, outer shell; 101, abutting groove; 102, placing groove; 103, connecting groove; 104, sealing oil groove; 105, external connecting groove; 106, external sealing ring; 107, internal sealing ring; 108, oil outlet groove; 2, connecting seat; 3, inner shell; 301, compression ring; 302, threaded hole; 4, sealing filling mechanism; 401, packing; 402, connecting rubber ring; 403, through hole; 5, oil outlet; 6, connecting bolt; 7, spring; 701, stable telescopic rod; 8, sealing cap. DETAILED DESCRIPTION

[0031] Referring to Figures 1-5 The utility model provides a technical scheme: including the shell body 1, the shell body 1 one side is provided with the connecting seat 2, the inside of shell body 1 and connecting seat 2 all is provided with main shaft, the inside of shell body 1 and connecting seat 2 is provided with internal housing 3, and the inside of internal housing 3 is fixedly connected between connecting seat 2, and the one side of shell body 1 is close to internal housing 3 and is provided with the abutment groove 101, the inside of shell body 1 is provided with the connecting groove 103 and the placing groove 102, and the connecting groove 103 and the placing groove 102 all with the abutment groove 101 between each other intercommunication, and the connecting groove 103 is located above the placing groove 102, and the one side of internal housing 3 is close to shell body 1 and is provided with the compression ring 301, and the size of compression ring 301 and the size of connecting groove 103 are mutually matched, and the bottom of compression ring 301 is provided as the inclined plane, and the inside of placing groove 102 is installed with sealing filling mechanism 4, and sealing filling mechanism 4 includes two groups of packing 401, and two groups of packing 401 are provided with connecting rubber ring 402, and the one side of compression ring 301 is slidably connected in the inside of connecting groove 103 and the bottom and the top of sealing filling mechanism 4 are mutually butted, and the outside of shell body 1 is provided with multiple connecting bolts 6, and the inside of internal housing 3 is provided with multiple threaded holes 302, and the one side of multiple connecting bolts 6 all is screwed and is connected between shell body 1 and threaded hole 302;

[0032] In this technical scheme, by setting up shell body 1, when using, since the shell body 1 and the internal housing 3 are connected by multiple connecting bolts 6, and the compression ring 301 is located in the connecting groove 103, and the bottom of the compression ring 301 is inclined, so after long-term use of the sealing filling mechanism 4, the wear between the sealing filling mechanism 4 and the main shaft may cause loosening or excessive gap, which may cause leakage. At this time, the distance between the shell body 1 and the internal housing 3 can be continuously shortened by tightening the multiple oil outlets 5. The bottom inclined surface of the compression ring 301 will continuously press the sealing filling mechanism 4, artificially making the connection between the sealing filling mechanism 4 and the main shaft more tight. This can greatly improve the actual service life of the sealing filling mechanism 4. In the case of leakage, the adjustment can be made in the first time. Only the multiple connecting bolts 6 need to be rotated to quickly complete the adjustment. The use is convenient, and the structure is simple and easy to maintain.

[0033] In some technical solutions, as shown in Figure 3 The inside of the shell body 1 is provided with a sealing oil groove 104, which is in communication with the connecting groove 103. The top of the shell body 1 is provided with an oil outlet 5, and the bottom of the oil outlet 5 extends into the inside of the shell body 1 and is in communication with the sealing oil groove 104.

[0034] When in use, by setting the oil inlet 5, in use, the lubricating oil can be directly added to the inside of the device through the oil inlet 5, which can further reduce the efficiency of wear and tear, and the lubricating oil will also play a sealing effect under the rotation between the main shaft and the sealing filling mechanism 4, which can further reduce wear and tear and improve sealing efficiency.

[0035] In some technical solutions, as shown in Figure 2 The outer shell 1 and the inner shell 3 are provided with a plurality of groups of springs 7, and the plurality of groups of springs 7 are staggered between the plurality of groups of connecting bolts 6.

[0036] When in use, by setting the spring 7, a supporting force can be applied between the outer shell 1 and the inner shell 3 during use, which can improve the stability between the outer shell 1 and the inner shell 3 during use of the device and improve the practicability of the device.

[0037] In some technical solutions, as shown in Figure 2 The outer shell 1 and the inner shell 3 are provided with an inner sealing ring 107, and the bottom surface of the inner sealing ring 107 is located at the top of the compression ring 301 and extends to the inside of the abutting groove 101 on one side.

[0038] When in use, by setting the inner sealing ring 107, the sealing property between the compression ring 301 and the connecting groove 103 can be further improved, and the possibility of leakage can be further reduced, and the inner sealing ring 107 can serve as a buffer between the outer shell 1 and the inner shell 3, further improving the practicability.

[0039] In some technical solutions, as shown in Figure 5 The lower part of the outer shell 1 is provided with an oil outlet groove 108, one end of the oil outlet groove 108 is in communication with the sealing oil groove 104, the other end is in communication with the outside, and the outer side of the oil outlet groove 108 is provided with a sealing cap 8, and the sealing cap 8 is threadedly connected with one end of the oil outlet groove 108.

[0040] When in use, after frequent wear and tear between the main shaft and the sealing filling mechanism 4, the lubricating property of the lubricating oil may be poor, and the oil outlet groove 108 can be matched with the oil inlet 5 at the top to realize replacement and cleaning of the lubricating oil inside the device, thereby improving the lubricating property.

[0041] In some technical solutions, as shown in Figure 2As shown, the front of the outer shell 1 is provided with an external connection groove 105, the inside of the external connection groove 105 is provided with an external sealing ring 106, the inside of the connecting rubber ring 402 is provided with a plurality of through holes 403, the plurality of through holes 403 all penetrate the connecting rubber ring 402, the inside of the plurality of springs 7 is all provided with a stable telescopic rod 701, the two ends of the plurality of stable telescopic rods 701 are respectively fixedly connected between the outer shell 1 and the inner shell 3.

[0042] In use, by setting the external sealing ring 106, the outside of the outer shell 1 can be sealed during use, which can prevent external dust and the like from entering between the outer shell 1 and the shaft from the outside, further improving the practicality of the device; by setting the through hole 403, the lubricating oil can be more fully spread between the sealing filling mechanism 4 and the main shaft through the through hole 403 during use, which can further improve the lubricating effect; by setting the stable telescopic rod 701, the spring 7 can be prevented from deviating during use, the service life of the spring 7 is improved, and the practicality of the device is improved.

[0043] Working principle: by setting the shell 1, in use, due to the shell 1 and the internal shell 3 through a plurality of connecting bolts 6 between the thread connection, and the compression ring 301 is located in the connecting groove 103 inside, the bottom of the compression ring 301 is inclined, so that after a long period of use, the sealing filling mechanism 4 may appear with the spindle wear caused by loose or connected gap caused by leakage phenomenon, at this time, can be through the tightening of a plurality of oil inlet 5 make the distance between the shell 1 and the internal shell 3 continue to close, at this time the bottom of the compression ring 301 will continue to press the sealing filling mechanism 4, artificial make the sealing filling mechanism 4 and the spindle between the connection more closely, so as to greatly improve the actual service life of the sealing filling mechanism 4, in the case of leakage can be the first time to adjust quickly, only need to rotate a plurality of connecting bolts 6 can be quickly completed adjustment, use is more convenient, and the structure is simple and convenient to maintain, by setting the oil inlet 5, in use, can be directly added to the inside of the device through the oil inlet 5 lubricating oil, so as to further reduce the wear efficiency, at the same time the lubricating oil will also play a sealing effect under the rotation between the spindle and the sealing filling mechanism 4, can further reduce the wear case to improve the sealing efficiency, by setting the spring 7, in use, can be applied between the shell 1 and the internal shell 3 a support force, can improve the stability between the shell 1 and the internal shell 3 when the device is used, improve the practicability of the device, by setting the internal sealing ring 107, in use, can further improve the sealing between the compression ring 301 and the connecting groove 103, further reduce the possibility of leakage, and the internal sealing ring 107 can be used as the buffer between the shell 1 and the internal shell 3, further improve the practicability, by setting the oil groove 108, in use, the spindle and the sealing filling mechanism 4 between the frequent wear, the lubricating property of the lubricating oil may be poor, the oil groove 108 can be set with the top of the oil inlet 5 to realize the replacement and cleaning of the lubricating oil in the device, improve the lubricating property, by setting the external sealing ring 106, in use, can be sealed outside the shell 1, can block the external dust from entering between the shell 1 and the shaft, further improve the practicability of the device, by setting the through hole 403, in use, can make the lubricating oil through the through hole 403 more comprehensive between the sealing filling mechanism 4 and the spindle, can further improve the lubricating effect, by setting the stable telescopic rod 701, can prevent the spring 7 from deviating in use, improve the service life of the spring 7, improve the practicability of the device.

Claims

1. A fan main shaft sealing device comprising an outer housing (1), characterized in that: The outer shell (1) is provided with a connecting seat (2) on one side, the inner part of the outer shell (1) and the connecting seat (2) is provided with a main shaft, the inner part of the outer shell (1) and the connecting seat (2) is provided with an inner shell (3), the inner shell (3) is fixedly connected between one side of the connecting seat (2), the outer shell (1) is provided with an abutment groove (101) on one side close to the inner shell (3), the inner part of the outer shell (1) is provided with a connecting groove (103) and a placing groove (102), the connecting groove (103) and the placing groove (102) are communicated with the abutment groove (101), the connecting groove (103) is located above the placing groove (102), the inner shell (3) is provided with a compression ring (301) on one side close to the outer shell (1), the size of the compression ring (301) matches the size of the connecting groove (103), the bottom of the compression ring (301) is provided as an inclined surface, the inner part of the placing groove (102) is provided with a sealing filling mechanism (4), the sealing filling mechanism (4) comprises two groups of packing (401), the two groups of packing (401) are provided with a connecting rubber ring (402), one side of the compression ring (301) is slidably connected in the inner part of the connecting groove (103) and the bottom abuts against the top of the sealing filling mechanism (4), the outer part of the outer shell (1) is provided with a plurality of connecting bolts (6), the inner part of the inner shell (3) is provided with a plurality of threaded holes (302), one side of the plurality of connecting bolts (6) is threadedly connected between the outer shell (1) and the threaded holes (302).

2. A fan spindle seal according to claim 1, wherein, The inner part of the outer shell (1) is provided with a sealing oil groove (104), the sealing oil groove (104) is communicated with the connecting groove (103), the top of the outer shell (1) is provided with an oil inlet (5), the bottom of the oil inlet (5) extends into the inner part of the outer shell (1) and is communicated with the sealing oil groove (104).

3. A fan shaft seal apparatus as claimed in claim 1, wherein, A plurality of springs (7) are arranged between the outer shell (1) and the inner shell (3), and the plurality of springs (7) are arranged alternately with the plurality of connecting bolts (6).

4. A fan shaft seal apparatus as claimed in claim 1, wherein, An inner sealing ring (107) is arranged between the outer shell (1) and the inner shell (3), the bottom surface of the inner sealing ring (107) is located on the top of the compression ring (301) and extends to the inner part of the abutment groove (101) on one side.

5. A fan shaft seal apparatus as claimed in claim 2, wherein, An oil outlet groove (108) is arranged below the outer shell (1), one end of the oil outlet groove (108) is communicated with the sealing oil groove (104), the other end is communicated with the outside, the outer side of the oil outlet groove (108) is provided with a sealing cap (8), the sealing cap (8) is threadedly connected with one end of the oil outlet groove (108).

6. A fan shaft seal apparatus as claimed in claim 1, wherein, The front of the outer shell (1) is provided with an outer connecting groove (105), the inner part of the outer connecting groove (105) is provided with an outer sealing ring (106).

7. A fan shaft seal apparatus as claimed in claim 1, wherein, The inside of the connecting rubber ring (402) is provided with a plurality of groups of through holes (403), and the plurality of groups of through holes (403) all penetrate the connecting rubber ring (402).

8. A fan shaft seal apparatus as claimed in claim 3, wherein, The inside of each of the plurality of groups of springs (7) is provided with a stable telescopic rod (701), and both ends of the plurality of groups of stable telescopic rods (701) are fixedly connected between the outer shell (1) and the inner shell (3).

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