Sealing structure of scraping plate conveying mechanism of stem soaking machine

Abstract

The utility model discloses a sealing structure of a scraping plate conveying mechanism of a tobacco stem soaking machine, which is used for sealing shaft heads at two ends of a driving roller and a driven roller of the scraping plate conveying mechanism of the tobacco stem soaking machine, and comprises a rotary supporting plate, a metal sealing gasket is arranged between the rotary supporting plate and an equipment box body, and the metal sealing gasket is connected with the rotary supporting plate through a bolt; the end, close to the equipment box body, of the rotary supporting plate penetrates through the metal sealing gasket to be connected with the equipment box body in an inserted mode so that the transmission shaft can be isolated from the equipment box body through the rotary supporting plate. The sealing performance of the connecting position of the transmission shaft is guaranteed under the high-temperature and high-humidity working condition environment, the hidden danger that on-site leakage and leakage occur and raw materials are polluted by oil is avoided, leakage pollution caused by liquid passing through the transmission shaft is avoided, the sealing performance is higher, the maintenance time is saved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cigarette equipment technical field, specifically is a kind of sealing structure of scraping plate conveying mechanism of stalk dipping machine. BACKGROUND

[0002] In tobacco stem production process line, tobacco stalk dipping machine is the important equipment for cleaning and decontaminating tobacco stem, directly moisture-regulating tobacco stem pretreatment in tobacco processing line front section processing tobacco stem. Tobacco stalk dipping machine is mainly composed of main and auxiliary water tank, water collecting tank, cleaning water tank, scraping plate conveying mechanism, mesh belt conveying mechanism, circulating waterway system, pipeline control system etc., wherein, the temperature of the working medium water in the dipping machine is about 40~80 DEG C, and the water droplets brought by high-temperature steam and scraping plate conveying mechanism overturning are prone to leak along the transmission shaft position, causing the bearing on the transmission shaft to rust, and even causing the phenomenon of leakage. And when maintaining the bearing unit of transmission shaft, if excessive lubricating oil is added by mistake, it is easy to cause reverse leakage, thereby causing pollution risk to the working medium water in the dipping machine, and causing the risk of oil smoke pollution to the processed materials. Therefore, it is particularly important to solve the sealing problem of the two end shaft heads of the main and passive rollers of the scraping plate conveying mechanism of the tobacco stalk dipping machine. SUMMARY

[0003] The utility model aims at providing a kind of sealing structure of scraping plate conveying mechanism of stalk dipping machine, to solve the problem that the two end shaft heads of the main and passive rollers of the scraping plate conveying mechanism of the tobacco stalk dipping machine cannot be sealed in the prior art.

[0004] The utility model solves the above-mentioned problems by the following technical solutions:

[0005] A kind of sealing structure of scraping plate conveying mechanism of stalk dipping machine, for the sealing of the two end shaft heads of the main and passive rollers of the scraping plate conveying mechanism of the tobacco stalk dipping machine, comprising: rotating support plate, metal sealing pad is arranged between rotating support plate and equipment cabinet, and metal sealing pad is connected with rotating support plate by bolt;The end of rotating support plate close to equipment cabinet penetrates metal sealing pad and is inserted with equipment cabinet, to isolate transmission shaft and equipment cabinet by rotating support plate.

[0006] As a further improvement, the end of the rotating support plate close to the equipment cabinet is flush with the inner side of the equipment cabinet.

[0007] As a further improvement, the rotating support plate is formed with a plurality of waist-type holes, and the bolt connects and limits the rotating support plate and the metal sealing pad through the waist-type holes.

[0008] As a further improvement, the end of the rotating support plate close to the equipment cabinet is provided with a shaft sleeve, to be inserted with the equipment cabinet through the shaft sleeve.

[0009] As a further improvement, the shaft sleeve is welded to the rotating support plate near the end of the equipment box.

[0010] As a further improvement, the shaft sleeve is welded to the rotating support plate near the end of the equipment box.

[0011] As a further improvement, the shaft sleeve is welded to the rotating support plate near the end of the equipment box.

[0012] As a further improvement, the rotating support plate is formed with a plurality of threaded holes for mounting bearing fixing bolts, and the rotating support plate is fixed to the bearing through the bearing fixing bolts.

[0013] As a further improvement, the rotating support plate is formed with a plurality of threaded holes for mounting bearing fixing bolts, and the rotating support plate is fixed to the bearing through the bearing fixing bolts.

[0014] As a further improvement, the rotating support plate is formed with a plurality of threaded holes for mounting bearing fixing bolts, and the rotating support plate is fixed to the bearing through the bearing fixing bolts.

[0015] The utility model has the following advantages and beneficial effects compared with the prior art:

[0016] (1) The utility model guarantees the sealing property of the transmission shaft connection under high temperature and high humidity working condition environment, avoids field leakage and oil pollution raw material hidden danger, mainly applies to the special working condition sealing of the main and passive rollers of the tobacco stem dipping machine scraper conveying mechanism, can also be applied to food processing and other industries to avoid liquid leakage pollution through the transmission shaft.

[0017] (2) The utility model is installed and used, and the equipment runs stably for a long time, does not occur leakage phenomenon, and the sealing property is stronger, and the maintenance time is saved, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a sealing structure installation schematic view of the scraper conveying mechanism of the dipping machine.

[0019] Fig. 2 It is a structure schematic view of the rotating support plate.

[0020] Fig. 3 It is a plane schematic view of the rotating support plate.

[0021] REFERENCE SIGNS:

[0022] 1, equipment box;2, rotating support plate;3, bearing;4, sealing snap ring;5, metal sealing gasket;6, transmission shaft;7, bearing fixing bolt;8, shaft sleeve;9, snap ring groove. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Combined with appendix Figs. 1-3 As shown, a sealing structure for the scraper conveying mechanism of a tobacco stalk soaking machine is used to seal the ends of the main and passive rollers of the scraper conveying mechanism of the tobacco stalk soaking machine. It includes: a rotating support plate 2, a metal sealing gasket 5 between the rotating support plate 2 and the equipment housing 1, and the metal sealing gasket 5 is connected to the rotating support plate 2 by bolts; the end of the rotating support plate 2 near the equipment housing 1 passes through the metal sealing gasket 5 and is inserted into the equipment housing 1, so as to isolate the drive shaft 6 from the equipment housing 1 through the rotating support plate 2.

[0026] Preferably, the end of the rotating support plate 2 closest to the equipment housing 1 is flush with the inner side of the equipment housing 1. The rotating support plate 2 has several oblong holes, through which bolts connect and limit the rotating support plate 2 and the metal sealing gasket 5, allowing for a certain amount of adjustment during installation.

[0027] Specifically, a bushing 8 is formed at one end of the rotating support plate 2 near the equipment housing 1, for insertion into the equipment housing 1. Several retaining ring grooves 9 are formed on the outside of the bushing 8, creating a compression amount to seal the drive shaft 6 between the bushing 8 and the equipment housing 1. Preferably, a high-temperature and high-pressure resistant Glyd ring is installed in the retaining ring groove 9.

[0028] In an optional embodiment, the bushing 8 is welded to one end of the rotating support plate 2. The bushing 8 is made of high-quality 304 stainless steel, which ensures the reliability of transmission while effectively isolating the tank body from oil contamination.

[0029] The rotating support plate 2 has several threaded holes in its middle for mounting bearing fixing bolts 7. The rotating support plate 2 is fixed to the bearing 3 by the bearing fixing bolts 7, and a sealing ring 4 is provided between the bearing fixing bolts 7 and the bearing 3 to achieve a seal. The bearing 3 is fixedly fitted with the drive shaft 6 that passes through the equipment housing 1, the metal sealing gasket 5, and the rotating support plate 2, so that the two ends of the drive shaft 6 pass through the equipment housing 1 and cooperate with the sealing structure.

[0030] Furthermore, the bearing fixing bolt 7 can also be welded to the rotating support plate 2 for bearing installation; the mating surface between the transmission support plate and the equipment housing is precision machined and polished to ensure flatness and tight fit with the metal sealing gasket.

[0031] The scraping plate conveying mechanism of the stalk dipping machine is driven by a driving mechanism to drive a side chain mechanism and a scraping plate to convey materials, and the existing sealing mode is that a silica gel plate is directly added between a rotating support plate and an equipment box for the sealing of the main and passive rollers, but there is dynamic friction between the inner hole of the silica gel plate and the transmission shaft, which is easy to cause fatigue damage, and the silica gel plate is also easy to deform under high temperature working conditions, so that the transmission shaft cannot be completely and tightly sealed, the sealing is easy to deform and damage, and there is a risk of liquid penetration along the transmission shaft.

[0032] The sealing structure of the scraping plate conveying mechanism of the stalk dipping machine is improved by adding a shaft sleeve and a snap ring groove structure to the transmission support plate, and one or more layers of Galy coils are added in the snap ring groove, the transmission shaft and the transmission support plate are completely and tightly sealed by the Galy coils, and metal sealing pads are used between the equipment box and the transmission support plate, so that the transmission shaft and the equipment box are completely and effectively isolated, the transmission reliability is ensured, and the pollution risk of oil stains in the snap ring groove is also effectively isolated, so that the transmission shaft part is completely and tightly sealed.

[0033] The sealing structure of the scraping plate conveying mechanism of the stalk dipping machine ensures the sealing of the transmission shaft connection under high temperature and high humidity working conditions, avoids site leakage and oil pollution of raw materials, and is mainly applied to the special working condition sealing of the main and passive rollers of the tobacco stalk dipping machine scraping plate conveying mechanism, and can also be applied to food processing and other industries to avoid liquid leakage and pollution through the transmission shaft.

[0034] And through long-term tests, it has been proved that the sealing structure of the scraping plate conveying mechanism of the stalk dipping machine designed for the sealing problem of the main and passive roller transmission shaft of the scraping plate conveying mechanism in the tobacco stalk dipping machine is stable and good after installation and use, and no leakage occurs, compared with the leakage frequency period of 30-90 days before installation, the sealing is stronger, the maintenance time is saved, and the production efficiency is improved.

[0035] Although the utility model has been described with reference to the explanatory embodiments of the utility model, the above-mentioned embodiments are only the preferred embodiments of the utility model, and the embodiments of the utility model are not limited by the above-mentioned embodiments, and it should be understood that the skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the disclosure of the present application.

Claims

1. A sealing structure for the scraper conveying mechanism of a tobacco stalk impregnation machine, used for sealing the two ends of the shaft heads of the active and passive rollers of the scraper conveying mechanism of the tobacco stalk impregnation machine, characterized in that, include: A rotating support plate is provided, and a metal sealing gasket is provided between the rotating support plate and the equipment housing. The metal sealing gasket is connected to the rotating support plate by bolts. The end of the rotating support plate near the equipment housing passes through the metal sealing gasket and is inserted into the equipment housing, so as to isolate the drive shaft from the equipment housing through the rotating support plate. A bushing is provided at one end of the rotating support plate near the equipment housing, so as to be inserted into the equipment housing through the bushing; the bushing has several retaining ring grooves formed around its circumference, and a Glyd ring is installed in the retaining ring groove.

2. The sealing structure of the scraper conveying mechanism of the immersion machine according to claim 1, characterized in that, The end of the rotating support plate near the equipment housing is flush with the inner side of the equipment housing.

3. The sealing structure of the scraper conveying mechanism of the soaking machine according to claim 1, characterized in that, The rotating support plate has several oblong holes, through which bolts connect and limit the rotating support plate and the metal sealing gasket.

4. The sealing structure of the scraper conveying mechanism of the soaking machine according to claim 1, characterized in that, The bushing is welded to one end of the rotating support plate near the equipment housing.

5. The sealing structure of the scraper conveying mechanism of the soaking machine according to claim 1, characterized in that, The bushing is made of stainless steel.

6. The sealing structure of the scraper conveying mechanism of the soaking machine according to any one of claims 1-5, characterized in that, The rotating support plate has several threaded holes in the middle for mounting bearing fixing bolts, and the rotating support plate is fixed to the bearing by the bearing fixing bolts.

7. The sealing structure of the scraper conveying mechanism of the soaking machine according to claim 6, characterized in that, A sealing retaining ring is provided between the bearing fixing bolt and the bearing.

8. The sealing structure of the scraper conveying mechanism of the soaking machine according to claim 7, characterized in that, The bearing is fitted with the drive shaft, and both ends of the drive shaft pass through the equipment housing and fit into the sealing structure.

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