Bearing lubricating structure in reactor
By installing a protective ring and a flow guide plate structure on the bearing and utilizing gas-phase small molecule particles for lubrication, the problem of insufficient lubrication of the inner bearing in the horizontal reactor was solved, and the stable operation of the equipment was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-03-24
AI Technical Summary
In horizontal reactors, insufficient lubrication of the inner bearings can cause climbing and jumping phenomena, affecting the stable operation of the equipment and easily leading to cracking and leakage of the outer shaft seal.
A protective ring is installed on the bearing, and an inclined guide plate is installed on the protective ring. Small molecules in the gas phase adhere to and flow into the bearing to supplement lubrication and reduce friction.
It effectively eliminates bearing run-up and vibration, maintains stable equipment operation, and avoids the impact of adding extra lubricant on the reaction.
Smart Images
Figure CN224032959U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing technical field, concretely is a reactor inner bearing lubrication structure. BACKGROUND
[0002] At present, polymer production needs to realize high molecular weight long chain chemical structure, and forms high viscosity high strength product under high vacuum and certain temperature. Generally, horizontal reactor is adopted to improve its molecular weight and viscosity, and there are disc, squirrel cage and other structures inside. In order to reduce vacuum leakage point, the end of horizontal reactor shaft generally adopts inner support sliding bearing structure, which is sliding bearing, and the shaft sleeve on the shaft is relatively slid and rotates, as shown in Figure 1 and Figure 2 After the material enters the reactor, small molecules overflow and separate from the material surface under high vacuum condition, are quickly extracted from the material gas phase port, and the polymerization reaction can be continuously carried out. The inner bearing realizes lubrication by small molecules in material and gas phase, and the climbing and jumping phenomenon of the inner bearing and the shaft in the horizontal reactor due to insufficient lubrication is common, and the reactor vibrates once per revolution, which can easily cause the inner bearing to break and the outer shaft seal to leak. SUMMARY
[0003] In order to solve the above technical problems, the utility model provides a reactor inner bearing lubrication structure, which can supplement lubrication to eliminate the climbing and jumping of the shaft and keep the stable operation of the equipment.
[0004] The technical scheme is as follows: a reactor inner bearing lubrication structure, which comprises a reactor shaft, a shaft sleeve connected to one end of the reactor shaft, and a bearing on which the shaft sleeve is slidably supported, characterized in that a protective ring is arranged on the bearing, and an inclined drainage plate is mounted on the protective ring.
[0005] Further, the protective ring comprises two half rings, and the drainage plate is welded and fixed to the half rings.
[0006] After the utility model is adopted, a drainage plate is arranged above the bearing, so that small molecular particles in the gas phase can adhere to the drainage plate, flow into the bearing with the opening on the surface of the inclined drainage plate under the action of gravity, these materials can supplement lubrication, eliminate the climbing and jumping of the shaft, and keep the stable operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS
[0007] Figure 1 It is a schematic view of the existing inner bearing structure;
[0008] Figure 2 It is a schematic view of the horizontal reactor structure;
[0009] Figure 3 It is a main view of the utility model structure;
[0010] Figure 4 For Figure 3 A schematic diagram is shown in FIG. DETAILED DESCRIPTION
[0011] See Figure 3 and Figure 4 As shown in FIG. 1, a reactor bearing lubrication structure includes a reactor shaft 1, a shaft sleeve 2 connected to one end of the reactor shaft 1, the shaft sleeve 2 is slidingly supported on a bearing 3, two semi-ring-shaped protective rings 4 are arranged on the bearing 3, and an inclined drainage plate 5 is welded and fixed on the protective ring 4.
[0012] The two ends of the protective ring 4 are connected with the bearing 3 through bolted nuts, which has little modification to the original structure and is simple and convenient to assemble. The drainage plate 5 is fixed by direct welding, which is stable and reliable.
[0013] After the material enters the reactor, small molecules overflow and separate from the surface of the material under high vacuum conditions. Most of them are extracted from the gas phase port of the material, and some of them will adhere to the drainage plate. Under the action of its own gravity, it flows down the inclined surface of the drainage plate and falls into the bearing 3 through the protective ring. These materials can increase the lubrication effect of the shaft sleeve 2 and the bearing 3, reduce friction, and thus eliminate bearing climbing and jumping. The effect is very good in actual use. Since the lubricant that may affect the reaction does not need to be added, the equipment can run stably.
Claims
1. A bearing lubrication structure for a reactor, comprising a reactor shaft and a bushing connected to one end of the reactor shaft, the bushing being slidably supported on a bearing, characterized in that, The bearing is provided with a protective ring, and an inclined drainage plate is installed on the protective ring.
2. The reactor internal bearing lubrication structure according to claim 1, characterized in that, The protective ring comprises two semi-rings, and the drainage plate is welded and fixed to the semi-rings.