A water-cooled side cover for a bearing housing

Abstract

This utility model belongs to the technical field of bearing housings, specifically relating to a water-cooled side cover for a bearing housing. The water-cooled side cover includes a cover body with a central through hole. The cover body is detachably connected to the bearing housing shaft hole end face. An annular flange is provided on the edge of the cover body, and a coolant flow channel is provided within the annular flange. An inlet and outlet communicating with the flow channel are provided along the edge of the cover body. Several pores are provided on the axially inner side of the annular flange, contacting the bearing housing shaft hole end face. The pores communicate with the flow channel, allowing for heat exchange between the coolant and the bearing housing shaft hole end face. This water-cooled side cover is detachably assembled with various existing bearing housings. Through independent detachable flow channels, the versatility of the water-cooling components is improved, facilitating the maintenance of existing bearing housings. It features continuous and stable heat exchange in the bearing housing shaft hole area and excellent cooling effect.

Description

Technical Field

[0001] This utility model belongs to the field of bearing housing technology, and specifically relates to a water-cooled side cover for a bearing housing. Background Technology

[0002] The bearing assembly between the equipment's drive shaft and the bearing housing serves to support and lubricate the bearings during operation, and must withstand the axial and radial forces of the drive shaft. Due to the frictional heat generated by the high-speed rotation of the bearings, the shaft and bearing temperatures can exceed the limits. High temperatures can lead to problems such as coking of the lubricating oil and carbon buildup on the sealing rings, causing them to lose elasticity. This affects the normal operation of the bearings, reduces equipment performance and lifespan; therefore, cooling measures must be installed inside the bearing housing.

[0003] Traditional bearing housing cooling employs cooling water channels within the housing body, using external circulation for cooling. This method is structurally complex, requires designing different water-cooling molds for different bearing housing dimensions, resulting in high production costs and poor interoperability. For standard products, the installation dimensions may even need to be altered, which undoubtedly reduces the product's application range. Utility Model Content

[0004] The purpose of this utility model is to provide a water-cooled side cover that can be detachably assembled with various existing bearing housings. Through an independent detachable flow channel, it improves the versatility of water-cooling components, facilitates the maintenance of existing bearing housings, and features continuous and stable heat exchange in the bearing housing shaft hole area and good cooling effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A water-cooled side cover for a bearing housing, characterized in that: it includes a cover body with a central through hole, the cover body being detachably connected to the bearing housing shaft hole end face, the edge of the cover body having an annular flange, a coolant flow channel being provided within the annular flange, an inlet and an outlet communicating with the flow channel being provided along the edge of the cover body, and a plurality of pores being provided on the axially inner side of the annular flange and contacting the bearing housing shaft hole end face, the pores communicating with the flow channel for heat exchange between the coolant and the bearing housing shaft hole end face.

[0007] The additional technical features constituting the water-cooled side cover of the bearing housing described above also include:

[0008] —The pores are dot-shaped circular holes and arc-shaped slots arranged alternately along the circumference;

[0009] —The annular flange and the bearing housing shaft hole end face are provided with screw holes corresponding to each other. The screw holes are located on the radial outer side of the flow channel. The screw holes are connected by screws to realize the detachable connection between the cover and the bearing housing.

[0010] —A sealing mechanism is provided on the axial inner side of the annular flange and the end face of the bearing housing shaft hole. The sealing mechanism is located on the radial inner side of the flow channel. The sealing mechanism includes a horseshoe-shaped groove and a multi-lip sealing ring disposed in the horseshoe-shaped groove. The cross-section of the multi-lip sealing ring is jellyfish-shaped.

[0011] The flow channel within the annular flange consists of two parallel annular cavities connected by multiple radially or tangentially arranged branch cavities. The annular cavity located axially inside the annular flange is connected to the pore, the annular cavity located axially outside the annular flange is connected to the liquid outlet, and the liquid inlet is connected to the annular cavity axially inside the annular flange.

[0012] Compared with the prior art, the water-cooled side cover for a bearing housing provided by this utility model has the following advantages: Firstly, the water-cooled side cover is detachably connected to the bearing housing shaft hole end face, replacing the traditional cover. This separates the water-cooling flow channel from the bearing housing, avoiding the problems of complex processing and high manufacturing costs of the cooling flow channel within the bearing housing. It can be adapted to various existing bearing housing specifications, has a wide range of applications, and good economic benefits. Secondly, the edge of the cover is provided with an annular flange, within which a coolant flow channel is provided. An inlet and outlet communicating with the flow channel are provided along the edge of the cover. Several pores are provided on the axially inner side of the annular flange and contact the bearing housing shaft hole end face. These pores communicate with the flow channel, allowing for heat exchange between the coolant and the bearing housing shaft hole end face. That is, the coolant circulates within the flow channel, and the heat exchange process between the annular flange and the bearing housing shaft hole end face is achieved through the pores. This structure is simple and compact, easy to assemble and disassemble, and provides continuous and stable cooling while maintaining good heat exchange efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a water-cooled side cover for a bearing housing according to the present invention;

[0014] Figure 2 This is a schematic diagram of the axial inner structure of the water-cooled side cover;

[0015] Figure 3 This is a schematic diagram of another structure of the internal flow channel of the water-cooled side cover. Detailed Implementation

[0016] The structure and working principle of the bearing housing water-cooled side cover provided by this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In the description of this utility model, unless otherwise stated, the terms "axial", "radial", "inner / outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "set / equipped" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1 , Figure 2 As shown, the structure of this novel water-cooled side cover for bearing housing includes a cover body 1 with a central through hole 10. The cover body 1 is detachably connected to the end face of the shaft hole of bearing housing a. The edge of the cover body 1 is provided with an annular flange 11. A coolant flow channel 21 is provided inside the annular flange 11. An inlet 22 and an outlet 23 communicating with the flow channel 21 are provided on the edge of the cover body 1. Several holes 12 are provided on the axial inner side of the annular flange 11 and are in contact with the end face of the shaft hole of bearing housing a. The holes 12 are in communication with the flow channel 21 and are used for heat exchange between the coolant and the end face of the shaft hole of bearing housing a.

[0020] Its working principle is as follows: The cover 1 of the water-cooled side cover is connected to the end face of the bearing housing in a detachable manner, which improves the portability of the water-cooled components and facilitates later maintenance. The coolant flow channel 21 is set in the annular flange 11 on the edge of the cover 1. The flow channel 21 has a hole 12 that contacts the end face of the bearing housing shaft hole. The flowing coolant is in continuous contact with it, achieving stable heat exchange and good cooling effect.

[0021] It should be noted that the water-cooled side cover of this patent can replace the original cover for various existing bearing housings without changing their original structure, and has wide application value.

[0022] To improve the efficiency of coolant circulation, the water-cooled side covers located on both sides of the bearing housing can be connected to form an integrated circulation, that is, the outlet 23 on one side and the inlet 22 on the other side are connected by a connecting pipe 20.

[0023] In the structure constituting the aforementioned novel water-cooled side cover of the bearing housing

[0024] — Preferably, the above-mentioned pores 12 are dot-shaped circular holes 31 and arc-shaped slots 32 arranged alternately along the circumference, which takes into account both the structural strength of the flow channel 21 and the water-cooling contact area, ensuring that the coolant flows regularly and does not cause turbulence.

[0025] —Furthermore, the aforementioned annular flange 11 is provided with a screw hole corresponding to the bearing housing shaft hole end face. The screw hole is located on the radial outer side of the flow channel 21. The screw hole is connected by a screw 4 to realize the detachable connection between the cover 1 and the bearing housing. That is, through the aforementioned bolt connection method, the water-cooled side cover can be easily assembled with existing bearing housings of various specifications without changing its structure and original size, and the cover can be directly replaced.

[0026] — Preferably, the annular flange 11 is provided with a sealing mechanism 5 on the axial inner side and the bearing housing shaft hole end face. The sealing mechanism 5 is located on the radial inner side of the flow channel 21. That is, the coolant in the flow channel 21 (hole 12) and the bearing lubricant in the bearing housing a are sealed and separated by the annular sealing mechanism 5 to avoid mutual penetration and influence. The two circulation systems do not interfere with each other, and the equipment operates safely and reliably.

[0027] The sealing mechanism 5 includes an annular horseshoe-shaped groove 51 and a multi-lip seal ring 52 disposed within the horseshoe-shaped groove 51. The multi-lip seal ring 52 has a jellyfish-shaped cross-section, effectively isolating the coolant flow channel 21 area from the inside of the bearing housing (preventing coolant from seeping into the lubrication system) and the external environment (preventing lubricant leakage). The inner diameter of the multi-lip seal ring 52 forms an interference fit with the shaft (or bushing), and the outer diameter fits with the groove of the center hole of the side cover. The jellyfish-shaped multi-lip seal structure prevents the lubricating oil / grease inside the bearing housing from leaking to the outside, while blocking external dust and moisture from entering the bearing housing. The seal ring material must be oil-resistant and temperature-resistant, with a long and stable functional life, such as fluororubber or hydrogenated nitrile rubber.

[0028] --like Figure 3 As shown, in a preferred embodiment, the flow channel 21 within the annular flange 11 consists of two parallel annular cavities (61, 62). The annular cavities (61, 62) are connected by multiple branch cavities 7 arranged radially (radial when the radii of the two annular cavities are different) or tangentially (parallel along the axial direction when the diameters of the two annular cavities are the same). The annular cavity 61 located axially inside the annular flange 11 is connected to the orifice 12, and the annular cavity 62 located axially outside the annular flange 11 is connected to the outlet 23. The inlet 22 is connected to the annular cavity 61 located axially inside the annular flange 11. This structure constrains the flow pattern of the coolant within the flow channel 21. The coolant flows in from one annular cavity and simultaneously flows out through multiple branch cavities to another annular cavity. This structural form results in a relatively small cooling pressure drop and a large flow rate, improving heat exchange efficiency and cooling effect.

[0029] The above-described embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit the implementation of this utility model. Therefore, any other modifications or equivalent substitutions to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A water-cooled side cover of a bearing housing, characterized by: The device includes a cover with a central through hole, which is detachably connected to the bearing housing shaft hole end face. The cover has an annular flange on its edge, and a coolant flow channel is provided inside the annular flange. The cover edge has an inlet and an outlet that communicate with the flow channel. The annular flange has several pores on its axial inner side that contact the bearing housing shaft hole end face. The pores communicate with the flow channel and are used for heat exchange between the coolant and the bearing housing shaft hole end face.

2. The water-cooled side cover of a bearing housing according to claim 1, characterized in that: The pores are dot-shaped circular holes and arc-shaped slots arranged alternately along the circumference.

3. The water-cooled side cover of a bearing housing according to claim 1, characterized in that: The annular flange has a screw hole corresponding to the end face of the bearing housing shaft hole. The screw hole is located on the radial outer side of the flow channel and is connected by a screw to realize the detachable connection between the cover and the bearing housing.

4. The water-cooled side cover of a bearing housing according to claim 1, characterized in that: A sealing mechanism is provided on the axial inner side of the annular flange and the end face of the bearing housing shaft hole. The sealing mechanism is located on the radial inner side of the flow channel. The sealing mechanism includes a horseshoe-shaped groove and a multi-lip sealing ring disposed in the horseshoe-shaped groove. The cross-section of the multi-lip sealing ring is jellyfish-shaped.

5. A water-cooled side cover for a bearing housing according to claim 1, characterized in that: The flow channel within the annular flange consists of two parallel annular cavities connected by multiple radially or tangentially arranged branch cavities. The annular cavity located axially inside the annular flange is connected to the pore, while the annular cavity located axially outside the annular flange is connected to the outlet. The inlet is connected to the annular cavity axially inside the annular flange.

Images