Water-cooling bearing component structure of horizontal split multi-stage pump
By arranging the cooling water chamber on the side of the lubricating oil chamber on the bearing housing of a horizontally operated multi-stage pump, and by setting a labyrinth seal and a drain hole on the bearing housing, the problems of casting difficulties and poor cooling effect in the prior art are solved, achieving better lubrication and cooling effect and extending the service life of the bearing.
Patent Information
- Application Number
- CN202423099909.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-16
AI Technical Summary
In existing horizontal split-case multistage pumps, the bearing housing cooling chamber is located below the oil chamber, which makes casting difficult and prevents the cooling water from effectively cooling the lubricating oil, affecting the lubrication and cooling effect of the bearing, and consequently affecting the stable operation and lifespan of the pump.
The cooling water chamber is arranged on the side of the lubricating oil chamber, and the cooling water inlet and outlet are located on the split surface of the bearing housing. The labyrinth seal and drain hole design ensure sealing and effective cooling of the lubricating oil. The use of stop fit and bolt connection improves connection stability.
It improves the ease of bearing casting, increases the contact area between the cooling water chamber and the lubricating oil, enhances the cooling effect of the lubricating oil, ensures the sealing performance of the bearing, extends its service life, and reduces maintenance costs.
Smart Images
Figure CN223459604U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a water -cooled bearing part structure, concretely relates to a horizontal split multistage pump water -cooled bearing part structure of changing the position of cooling water cavity and lubricating oil cavity, good cooling effect, the sealing and lubrication effect are also good. BACKGROUND
[0002] Horizontal split multistage pump is used for conveying clear water or other liquid similar to clear water in physical and chemical properties, and can also be used for conveying sand water containing a small amount of solid particles, city sewage and the like by matching different shaft seal and overflow part material, and is widely used in ecological water diversion, municipal water lifting, farmland irrigation, pumped storage, industrial and mining enterprises and fire fighting, power station and the like industries.
[0003] Bearing part, this seemingly unobtrusive part in mechanical design, but is the key element of supporting and fixing bearing, ensures that horizontal split multistage pump is cooled and lubricated to bearing during high-speed operation, thereby plays a vital role for high-speed stable operation and prolongs the service life of horizontal split multistage pump. The cooling cavity of the existing bearing body is arranged below the oil cavity, and then is sealed through the cooling chamber cover plate, and this structure can cause sand removal difficulty during casting of the bearing body, and the cooling water cannot well cool the lubricating oil during high-speed operation of the bearing. SUMMARY
[0004] In view of the above problems, the main purpose of the utility model is to provide a horizontal split multistage pump water-cooled bearing part structure which changes the position of the cooling water cavity and the lubricating oil cavity, has good cooling effect, and has good sealing and lubrication effect.
[0005] The utility model solves the above technical problem through the following scheme: a horizontal split multistage pump water-cooled bearing part structure, which comprises a bearing end cover, a thermometer, a rolling bearing, a bearing gland, a vernier, a cooling water inlet, a cooling water outlet, an oil level gauge assembly, a pump body, a cooling water cavity, a lubricating oil cavity, an oil flinger and a bearing body.
[0006] The thermometer is installed on the bearing body, the rolling bearing is located in the bearing body, the bearing body has a bearing end cover and a bearing gland on the two sides respectively, the bearing body is fixed after being matched with the pump body by using a stop opening, and the bearing gland is pressed on a bearing bush.
[0007] Two cavities are arranged on the bearing body, namely a lubricating oil cavity and a cooling water cavity, and the cooling water cavity is arranged on the side of the lubricating oil cavity.
[0008] The cooling water cavity is matched with a cooling water inlet and a cooling water outlet, the cooling water inlet and the cooling water outlet are arranged on the split face of the bearing body, and the cooling water inlet and the cooling water outlet are connected with a cooling water pipeline outside.
[0009] The lubricating oil cavity is equipped with a vernier for observing the height of lubricating oil in the cavity and an oil level gauge assembly for supplementing the lubricating oil.
[0010] In the embodiment of the utility model, the surface of the bearing gland and the bearing bush is sealed as a labyrinth, and a slotted structure is formed at the lowermost part of the bearing gland.
[0011] In the embodiment of the utility model, the bearing body and the pump body are fixedly connected by bolts after being matched by a stopper.
[0012] In the embodiment of the utility model, a bearing pad is arranged between the side surface of the rolling bearing and the bearing body.
[0013] In the embodiment of the utility model, the outer side of the cooling water cavity is sealed by a cooling cavity cover plate, and a drain hole is designed on the upper surface of the cooling chamber cover plate.
[0014] In the embodiment of the utility model, an oil drain hole for periodically discharging waste oil is arranged at the lower part of the lubricating oil cavity.
[0015] In the embodiment of the utility model, an oil throwing ring is arranged in the lubricating oil cavity.
[0016] The horizontal multi-stage pump water-cooled bearing component structure of the utility model has the advantages that compared with the common similar technology, the utility model mainly adjusts the positions of the lubricating oil cavity and the cooling water cavity, the structure can facilitate the casting of the bearing body, increases the contact area of the cooling water cavity and the lubricating oil cavity, and can better cool the lubricating oil, thereby ensuring the safe and stable operation of the water pump.
[0017] The bearing body has bearing end covers and bearing glands on both sides, which can ensure the sealing of the lubricating oil in the bearing body, prevent impurities and water in the air from entering the bearing cavity and damaging the lubricating oil, affect the lubrication and cooling of the bearing, and prolong the service life of the bearing. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a sectional view of the front view of the overall structure of the utility model.
[0019] Figure 2 It is a right view of the overall structure of the utility model.
[0020] Figure 3 It is a structure schematic view of the bearing body in the utility model.
[0021] Figure 4 It is a structure schematic view of the bearing gland in the utility model.
[0022] The following is the name corresponding to the label in the utility model:
[0023] bearing end cover 1, bearing temperature measuring device 2, rolling bearing 3, bearing pad 4, bearing gland 5, vernier 6, cooling water inlet 7, outlet 8, oil level gauge assembly 9, bearing bushing 10, cooling chamber cover plate 11, pump body 12, cooling water cavity 13, lubricating oil cavity 14, oil flinger 15, bearing body 16, labyrinth seal 501, slotted structure 502. DETAILED DESCRIPTION
[0024] The preferred embodiments of the present application are described below in detail with reference to the accompanying drawings, so as to explain the technical scheme of the present application.
[0025] Figure 1 It is a sectional view of the front view of the overall structure of the present application, Figure 2 The horizontal multi-stage pump water-cooled bearing component structure comprises: a bearing end cover 1, a temperature measuring device 2, a rolling bearing 3, a bearing gland 5, a vernier 6, a cooling water inlet 7, a cooling water outlet 8, an oil level gauge assembly 9, a pump body 12, a cooling water cavity 13, a lubricating oil cavity 14, an oil flinger 15, and a bearing body 16.
[0026] The temperature measuring device 2 is installed on the bearing body 16, the rolling bearing 3 is located in the bearing body 16, the bearing body 16 has a bearing end cover 1 and a bearing gland 5 on both sides, the bearing body 16 and the pump body 12 are fixed after being matched with a stop, and the bearing gland 5 is pressed on the bearing bushing 10.
[0027] The bearing body 16 is provided with two cavities: a lubricating oil cavity 14 and a cooling water cavity 13, and the cooling water cavity 13 is arranged on the side of the lubricating oil cavity 14. The cooling water cavity 13 is matched with a cooling water inlet 7 and a cooling water outlet 8, the cooling water inlet 7 and the cooling water outlet 8 are arranged on the split face of the bearing body 16, and the cooling water inlet 7 and the cooling water outlet 8 are externally connected with a cooling water pipeline. The lubricating oil cavity 14 is matched with a vernier 6 for observing the height of lubricating oil in the cavity and an oil level gauge assembly 9 for supplementing lubricating oil; and the lubricating oil cavity 14 is provided with an oil flinger 15.
[0028] Figure 3 It is a structural schematic view of the bearing body in the present application. Figure 3 , in combination with Figure 1 The bearing body 16 and the pump body 12 are fixedly connected by bolts after being matched with a stop. The rolling bearing 3 is provided with a bearing pad 4 between the side face and the bearing body 16. The outside of the cooling water cavity is sealed by a cooling cavity cover plate 11, and a drain hole is designed on the upper surface of the cooling chamber cover plate, so that the cooling water can be drained when the bearing component is overhauled. The lubricating oil cavity 14 is provided with an oil drain hole below for periodically draining waste oil.
[0029] The utility model discloses on the basis of original structure design, adjusts the position of oil cavity and water cooling cavity, and the convenient sand cleaning of bearing body casting is realized through this structure, better guaranteeing the lubrication and cooling effect of rolling bearing during water pump operation.
[0030] The bearing body and the pump body 12 are matched by a stopper and connected by bolts, the bearing body is designed as a whole, a whole circle in the middle supports the rolling bearing, bearing pads are added to the side surface of the rolling bearing and the bearing body, the function of the bearing pad is to prevent the bearing body and the bearing gland from damaging the bearing when the bearing is positioned. The bearing body has bearing end covers and bearing glands on both sides, which ensure the sealing of the lubricating oil in the bearing body and prevent impurities and water in the external air from entering the bearing cavity and damaging the lubricating oil, thereby affecting the lubrication and cooling of the bearing and improving the service life of the bearing.
[0031] Figure 4 The utility model discloses a structure diagram of bearing gland in the utility model, see Figure 4 The surface of the bearing gland and the end cover and the bearing bush 10 is made into a labyrinth seal 501, and a slotted structure 502 is made at the lowermost part, so as to prevent the lubricating oil in the oil cavity from leaking to the outside during the high-speed operation of the oil slinger 15, thereby preventing air and environment pollution and reducing the operation and maintenance cost of the user.
[0032] The function of the lubricating oil is to lubricate the rolling bearing during high-speed operation, and the function of the cooling water is to cool the lubricating oil and control the temperature of the rolling bearing during operation to prevent high temperature from damaging the bearing. When designing the cooling water cavity, it is arranged on the side of the oil cavity. This structure improves the difficulty of sand cleaning during casting of the bearing body, and the cooling water cavity better adheres to the oil cavity, thereby better cooling the lubricating oil. The inlet 7 and the outlet 8 of the cooling water are designed on the upper surface of the bearing body, and can be connected with the cooling water pipeline. The outside of the cooling water cavity is sealed by a cooling cavity cover plate, and a drain hole is designed on the upper surface of the cooling chamber cover plate, so that the cooling water can be drained when the bearing parts are overhauled. An oil drain hole is also designed below the oil cavity to drain waste oil regularly.
[0033] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A horizontally split, multi-stage pump water-cooled bearing component structure, characterized by: The horizontal split multi-stage pump water-cooled bearing component structure comprises a bearing end cover, a temperature gauge, a rolling bearing, a bearing gland, a vernier, a cooling water inlet, a cooling water outlet, an oil level gauge assembly, a pump body, a cooling water cavity, a lubricating oil cavity and a bearing body; The temperature gauge is installed on the bearing body, the rolling bearing is located in the bearing body, the bearing body has the bearing end cover and the bearing gland on both sides, the bearing body is fixed after being matched with the pump body through a stop opening, and the bearing gland is pressed on the bearing bushing; The bearing body is provided with two cavities, i.e., a lubricating oil cavity and a cooling water cavity, and the cooling water cavity is arranged on the side of the lubricating oil cavity; The cooling water cavity is matched with the cooling water inlet and the cooling water outlet, the cooling water inlet and the cooling water outlet are arranged on the split surface of the bearing body, the cooling water inlet and the cooling water outlet are connected with a cooling water pipeline outside the bearing body, and the cooling water inlet and the cooling water outlet are connected with a cooling water pipeline outside the bearing body. The lubricating oil cavity is matched with the vernier for observing the height of lubricating oil in the lubricating oil cavity and the oil level gauge assembly for supplementing the lubricating oil.
2. The horizontal split multistage pump water-cooled bearing component structure of claim 1, wherein: The surface of the bearing gland matched with the bearing bushing is sealed as a labyrinth, and a slot structure is formed at the lowermost part of the bearing gland.
3. The horizontal split multistage pump water-cooled bearing component structure according to claim 1 or 2, characterized in that: The bearing body and the pump body are connected through a stop opening and are fixed by bolts.
4. The horizontal split multistage pump water-cooled bearing component structure of claim 1, wherein: The bearing pad is arranged between the side surface of the rolling bearing and the bearing body.
5. The horizontally split multistage pump water-cooled bearing component structure of claim 1, wherein: The outside of the cooling water cavity is sealed through a cooling cavity cover plate, and a drain hole is designed on the upper surface of the cooling chamber cover plate.
6. The horizontal split multistage pump water-cooled bearing component structure of claim 1, wherein: The lubricating oil cavity is provided with an oil drain hole for regularly discharging waste oil.
7. The horizontal split multistage pump water bearing component structure of claim 1 or 6, wherein: The lubricating oil cavity is provided with an oil throwing ring.