Cooling device for vertical thrust sliding bearing

Abstract

The utility model relates to a cooling device for a vertical thrust sliding bearing, and the cooling device comprises a base frame which is provided with an annular outer wall and a bottom wall connected to one end of the annular outer wall, the surface, facing the annular outer wall, of the bottom wall is provided with a plurality of rib plates, and through mounting holes are formed in the rib plates in the radial direction of the base frame; the multiple cooling pipelines are coaxially installed on the base frame, and part of the cooling pipelines are located in the annular outer wall; the base frame is simple and reasonable in design structure, the cooling pipeline is divided into the inner part and the outer part, the gap between the inner cooling pipeline and the bottom wall is utilized to form a lubricating oil flowing channel, and lubricating oil can firstly enter the gap, flow upwards, pass through the outside of the base frame and finally enter a working area through the cooling pipeline below the bottom wall; due to the design, the uniform distribution of lubricating oil and a cooling medium is ensured, the cooling efficiency and the lubricating effect are obviously improved, the working temperature of the bearing is effectively reduced, and the service life of the bearing is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thrust sliding bearing, in particular to a cooling device for vertical thrust sliding bearing. BACKGROUND

[0002] Vertical thrust sliding bearings are widely used in various heavy machinery and equipment, especially in situations that require bearing large axial loads, such as vertical water pumps, vertical motors, vertical hydroelectric generators, etc. Due to the generation of a large amount of friction heat during the operation of these devices, if not cooled in time and effectively, the temperature of the bearing will rise, thereby affecting its working performance and service life.

[0003] Traditional cooling methods usually adopt external cooling systems, such as air cooling or water cooling, but these methods often have problems such as uneven cooling, complex structure, difficult maintenance, etc. Especially in vertical thrust sliding bearings, due to the vertical arrangement of the bearing, the flow and distribution of the cooling medium are more difficult to control, which easily leads to local overheating or insufficient cooling. In addition, traditional cooling devices usually occupy a large space, increasing the overall size and weight of the equipment, which is not conducive to the compact design and installation of the equipment.

[0004] In order to solve the above problems, some improved cooling device designs have appeared in recent years. For example, by setting cooling pipes inside the bearing seat, using cooling medium (such as oil or water) flowing in the pipes to take away the heat generated by the bearing. However, these designs still have some deficiencies in practical application. First, the arrangement of the cooling pipes is often single, which cannot fully utilize the space inside the bearing seat, resulting in limited cooling effect. Second, the connection between the cooling pipes and the bearing seat is not stable enough, which is easy to produce vibration or displacement during the operation of the equipment, affecting the cooling effect and the stability of the equipment. CONTENT OF THE INVENTION

[0005] In order to solve the problems of limited cooling effect and poor installation stability of the existing cooling device for vertical thrust sliding bearing as proposed in the background, the present application provides a cooling device for vertical thrust sliding bearing.

[0006] The cooling device for vertical thrust sliding bearing provided by the present application adopts the following technical scheme:

[0007] A cooling device for vertical thrust sliding bearing, comprising:

[0008] A base frame having an annular outer wall and a bottom wall connected to one end of the annular outer wall, the surface of the bottom wall facing the annular outer wall direction has a plurality of rib plates, and a through mounting hole is formed on the rib plate along the radial direction of the base frame;

[0009] The quantity of the cooling pipes is multiple and coaxially installed on the base frame, part of the cooling pipes is located at the inner position of the annular outer wall, and the other part of the cooling pipes is installed at the lower end position of the bottom wall.

[0010] The gap is formed between the cooling pipe located at the annular outer wall and close to one end of the bottom wall and the bottom wall.

[0011] By adopting the above technical scheme, the cooling pipes are divided into two parts of inside and outside of the base frame, so that the lubricating oil passes through the cooling pipes inside the base frame and then enters the outside of the base frame, and then enters the lubricating area again to pass through the cooling pipes outside the base frame, which is beneficial to fully lubricate the parts of the bearing that need to be lubricated, and is also beneficial to fully cool the lubricating oil and improve the cooling efficiency; the rib plate is arranged on the surface of the bottom wall to form a gap between the cooling pipe and the bottom wall, so as to form a flow channel of the lubricating oil through the gap to realize uniform distribution and efficient flow of the lubricating oil; the mounting hole is arranged to fix the cooling device to the inside of the bearing, which is connected with the bearing seat to improve the stability of the overall installation structure of the cooling device and avoid affecting the cooling effect due to vibration or displacement during equipment operation.

[0012] Optionally, the bottom wall is in the form of an annular plate body structure, and the bottom wall is coaxially arranged with the center line of the annular outer wall.

[0013] By adopting the above technical scheme, the structure is matched with the annular outer wall, so that the structure of the whole base frame is more compact and symmetrical, which is beneficial to uniform distribution of the lubricating oil and flow of the cooling medium, and improves the stability and reliability of the device.

[0014] Optionally, the rib plate is integrally connected on the surface of the bottom wall and the annular outer wall, and a plurality of rib plates are uniformly distributed around the center line of the annular outer wall.

[0015] By adopting the above technical scheme, the integrated design and uniform distribution of the rib plate enhance the overall structural strength of the base frame, and at the same time provide stable support for the installation of the cooling pipe to ensure that the cooling pipe does not displace or vibrate during operation; more importantly, the design of the rib plate can form a gap between the cooling pipe and the bottom wall when the cooling pipe contacts the rib plate, thereby facilitating the flow of the lubricating oil.

[0016] Optionally, the base frame is provided with a support assembly for limiting the cooling pipe.

[0017] Optionally, the support assembly includes a horizontal plate and a vertical plate which are connected to the annular outer wall and the bottom wall and are arranged in a horizontal and vertical cross manner, the horizontal plate and the vertical plate cross to form a plurality of cavities for limiting the cooling pipe and facilitating the cooling pipe to pass through, and the outer wall of the cooling pipe is fitted with the four inner walls of the cavities.

[0018] By adopting the technical scheme, the cavity formed by the intersection of the horizontal plate and the vertical plate not only provides accurate limiting for the cooling pipeline, but also enhances the connection strength between the cooling pipeline and the base frame, ensures the stability of the cooling pipeline during operation, and improves the flow efficiency of the cooling medium.

[0019] Optionally, the base frame is provided with an inlet pipe and an outlet pipe, and two ends of the cooling pipeline are connected with the inlet pipe and the outlet pipe respectively.

[0020] By adopting the technical scheme, the inlet pipe is used to guide the cooling medium with low temperature into the cooling pipeline, and the outlet pipe is used to guide the cooling medium with high temperature outwards, so as to realize the flow circulation of the cooling medium, take away the heat generated by the bearing during operation, and improve the cooling effect.

[0021] Optionally, the inlet pipe and the outlet pipe extend outward along the axis direction of the base frame.

[0022] By adopting the technical scheme, the connection of the inlet pipe and the outlet pipe with the external cooling system is facilitated, the complexity of pipeline arrangement is reduced, and the installation and maintenance convenience of the device are improved.

[0023] Optionally, the number of the cooling pipelines is eight, four layers are arranged along the axis direction of the base frame, and the number of the cooling pipelines in each layer is two, wherein, three layers are arranged inside the annular outer wall, and one layer is arranged at the lower end of the bottom wall.

[0024] By adopting the technical scheme, the arrangement of the multiple layers of cooling pipelines realizes the multiple circulation and uniform distribution of the cooling medium, ensures that the lubricating oil can be fully cooled, and the cooling pipeline below the bottom wall is used for secondary cooling, further reduces the temperature of the lubricating oil, and improves the cooling effect and the working performance of the bearing.

[0025] Optionally, the number of the mounting holes is multiple and uniformly distributed around the center line of the base frame.

[0026] By adopting the technical scheme, the multiple mounting holes are uniformly distributed around the center line of the base frame, so that the installation of the base frame is more stable, the stress of each part is more uniform, and the structural damage caused by local stress concentration is avoided. In addition, the uniformly distributed mounting holes facilitate the optimization of the flow path of the lubricating oil, ensure that the lubricating oil can efficiently enter the gap and flow upwards, and further improve the lubrication and cooling effect.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] The utility model discloses a simple and reasonable design, through the cooling pipeline is divided into inside and outside two parts, and utilize the clearance between inside cooling pipeline and bottom wall and form lubricating oil flow channel, lubricating oil can enter the clearance first, flow upwards and pass through the base frame outside, finally through the cooling pipeline below bottom wall and enter the working area, this design ensures the uniform distribution of lubricating oil and cooling medium, significantly improves the cooling efficiency and lubricating effect, effectively reduces the working temperature of bearing, prolongs the service life of bearing.

[0029] The utility model discloses a simple and reasonable design, through the cooling pipeline is divided into inside and outside two parts, and utilize the clearance between inside cooling pipeline and bottom wall and form lubricating oil flow channel, lubricating oil can enter the clearance first, flow upwards and pass through the base frame outside, finally through the cooling pipeline below bottom wall and enter the working area, this design ensures the uniform distribution of lubricating oil and cooling medium, significantly improves the cooling efficiency and lubricating effect, effectively reduces the working temperature of bearing, prolongs the service life of bearing. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the perspective drawing of the utility model;

[0031] Figure 2 It is the plan view of the utility model;

[0032] Figure 3 It is the utility model Figure 2 A-A's perspective sectional view;

[0033] Figure 4 It is the utility model Figure 2 A-A's sectional view;

[0034] Figure 5 It is the perspective sectional view of the utility model base frame;

[0035] Figure 6 It is the use state principle drawing of the utility model.

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] 1, base frame; 101, annular outer wall; 102, bottom wall; 103, web plate; 104, horizontal plate; 105, vertical plate; 106, cavity; 107, mounting hole;

[0038] 2, cooling pipeline;

[0039] 3, clearance;

[0040] 4, inlet pipe;

[0041] 5, outlet pipe. DETAILED DESCRIPTION

[0042] The application is further explained in detail below with reference to the drawings.

[0043] As Figures 1-6 shown, the embodiment of the present application discloses a kind of cooling device for vertical thrust sliding bearing, including base frame 1 and cooling pipeline 2 installed on base frame 1.

[0044] Base frame 1, with annular outer wall 101 and the bottom wall 102 connected at one end of annular outer wall 101, so that base frame 1 is L-shaped structure in cross section, the surface of bottom wall 102 towards annular outer wall 101 direction has several rib plates 103, through-hole mounting hole 107 is opened on rib plate 103 along the radial direction of base frame 1, the number of mounting hole 107 is multiple and evenly distributed around the center line of base frame 1.

[0045] In this case, bottom wall 102 is annular plate body structure, and bottom wall 102 is coaxially arranged with the center line of annular outer wall 101;Rib plate 103 is integrally connected on the surface of bottom wall 102 and annular outer wall 101, and multiple rib plates 103 are evenly distributed around the center line of annular outer wall 101, in other embodiments, rib plate 103 is connected with bottom wall 102 and annular outer wall 101 respectively by welding or bolt connection and other ways as a separate component.

[0046] Cooling pipeline 2, with multiple numbers and coaxially installed on base frame 1, part of cooling pipeline 2 is located at the inner position of annular outer wall 101, another part of cooling pipeline 2 is installed at the lower end position of bottom wall 102, as Figure 6 shown, the whole cooling device is sleeved outside bearing seat, and the inner diameter of cooling device matches the outer diameter of bearing seat, cooling device and bearing seat can be fixed and connected by bolt penetrating into mounting hole 107 and connecting on bearing seat, so that cooling cavity is formed between base frame 1 and bearing seat, wherein the upper end of cooling cavity above bottom wall 102 is open structure, lubricating oil can enter the cooling cavity along the gap 3 on the surface of bottom wall 102, and then flow out from the upper opening, in the process, heat exchange is generated with the cooling medium in cooling pipeline 2, to cool the lubricating oil, then the lubricating oil flows from the outside of base frame 1 downward, enters the inside of bearing seat after passing through the cooling pipeline 2 below bottom wall 102, to form circulation (as Figure 6 arrow shown). This structure of bottom wall 102 divides cooling pipeline 2 into two parts, which can be beneficial to the full heat exchange between lubricating oil and cooling pipeline 2, to improve the cooling effect.

[0047] Among them, gap 3 is formed between cooling pipeline 2 located at annular outer wall 101 and close to one end of bottom wall 102 and bottom wall 102, in this case, lubricating oil derived from bearing seat first enters the gap 3 when entering the cooling device, and then flows upward from the gap 3, to improve the flow effect of lubricating oil, and then improve the cooling efficiency.

[0048] Specifically, the base frame 1 is provided with a support assembly for limiting the cooling pipe 2, wherein the support assembly comprises transverse plates 104 and longitudinal plates 105 connected to the annular outer wall 101 and the bottom wall 102 and arranged transversely and longitudinally, the transverse plates 104 and the longitudinal plates 105 intersect to form a plurality of cavities 106 for facilitating the cooling pipe 2 to pass through and limiting the cooling pipe 2, and the outer wall of the cooling pipe 2 is fitted with the four inner walls of the cavities 106. In this example, the support assembly is provided with eight cavities and is uniformly distributed around the center of the base frame 1, so as to realize uniform force and positioning of the cooling pipe 2. The transverse plates 104 and the longitudinal plates 105 can be respectively connected to the annular outer wall 101 and the bottom wall 102 by welding.

[0049] Specifically, the base frame 1 is provided with an inlet pipe 4 and an outlet pipe 5, and the two ends of the cooling pipe 2 are respectively connected to the inlet pipe 4 and the outlet pipe 5, wherein the inlet pipe 4 and the outlet pipe 5 extend outward along the axis direction of the base frame 1. In this example, the cooling medium is water, which enters the cooling pipe 2 from the inlet pipe 4, flows in the cooling pipe 2, and is then discharged from the outlet pipe 5.

[0050] Specifically, in this embodiment, the number of the cooling pipes 2 is eight, and four layers are arranged along the axis direction of the base frame 1, and the number of the cooling pipes 2 in each layer is two, wherein three layers are arranged inside the annular outer wall 101, and one layer is arranged at the lower end of the bottom wall 102. In other embodiments, the number of the cooling pipes 2 and the distribution of the cooling pipes 2 inside the base frame 1 can be designed according to actual needs, which is not limited herein.

[0051] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cooling device for a vertical thrust sliding bearing, characterized in that, include: The base frame (1) has an annular outer wall (101) and a bottom wall (102) connected to one end of the annular outer wall (101). The bottom wall (102) has a number of stiffeners (103) on the surface facing the annular outer wall (101). Through mounting holes (107) are provided on the stiffeners (103) along the radial direction of the base frame (1). The cooling pipes (2) are multiple and coaxially mounted on the base frame (1). Some of the cooling pipes (2) are located inside the annular outer wall (101), and the other part of the cooling pipes (2) are installed at the lower end of the bottom wall (102). Among them, a gap (3) is formed between the cooling pipe (2) located on the outer annular wall (101) and the bottom wall (102).

2. The cooling device for a vertical thrust sliding bearing according to claim 1, characterized in that, The bottom wall (102) has an annular plate-like structure, and the center lines of the bottom wall (102) and the annular outer wall (101) are coaxially arranged.

3. The cooling device for a vertical thrust sliding bearing according to claim 1, characterized in that, The stiffening plates (103) are integrally connected to the surface of the bottom wall (102) and the annular outer wall (101), and multiple stiffening plates (103) are evenly distributed around the center line of the annular outer wall (101).

4. A cooling device for a vertical thrust sliding bearing according to claim 1, characterized in that, The base frame (1) is provided with a support assembly for limiting the cooling pipe (2).

5. A cooling device for a vertical thrust sliding bearing according to claim 4, characterized in that, The support assembly includes a horizontal plate (104) and a vertical plate (105) connected to the annular outer wall (101) and the bottom wall (102) and arranged in a cross pattern. The horizontal plate (104) and the vertical plate (105) intersect to form a plurality of cavities (106) for facilitating the passage of the cooling pipe (2) and for limiting the cooling pipe (2). The outer wall of the cooling pipe (2) is in contact with the four inner walls of the cavity (106).

6. A cooling device for a vertical thrust sliding bearing according to claim 1, characterized in that, The base frame (1) is equipped with an inlet pipe (4) and an outlet pipe (5), and the two ends of the cooling pipe (2) are connected to the inlet pipe (4) and the outlet pipe (5) respectively.

7. A cooling device for a vertical thrust sliding bearing according to claim 6, characterized in that, The inlet pipe (4) and outlet pipe (5) extend outward along the axis of the base frame (1).

8. A cooling device for a vertical thrust sliding bearing according to claim 1, characterized in that, The number of cooling pipes (2) is eight, and four layers are arranged along the axial direction of the base frame (1). Each layer has two cooling pipes (2). There are three layers inside the annular outer wall (101) and one layer installed at the lower end of the bottom wall (102).

9. A cooling device for a vertical thrust sliding bearing according to claim 1, characterized in that, The number of mounting holes (107) is multiple and they are evenly distributed around the center line of the base frame (1).

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