Oil cooling structure for water turbine bearing

Abstract

The utility model discloses an oil cooling structure for a bearing of a water turbine, which comprises a main body assembly, an oil cooling device and an oil cooling device, and is characterized in that the main body assembly comprises a bearing oil tank and a coil pipe; the coil pipe is placed in the bearing oil tank; the supporting assembly comprises a fixing plate, an embedded groove, a spring column and a clamping block; the fixing plate is welded to the inner side face of the bearing oil tank, the embedded groove is formed in the middle of the side, away from the bearing oil tank, of the fixing plate, the spring columns are inserted into the embedded groove, and the clamping blocks are connected to the movable ends of the spring columns through screws. One supporting assembly is located in the middle of the coil pipe, and the other two supporting assemblies are located at the two ends of the coil pipe respectively. The problems that when a coil pipe is placed in an oil tank, heat exchange is carried out on lubricating oil in the oil tank through an external oil pump and a radiator, generally, the coil pipe is placed in the oil tank, vibration is generated under high-speed movement of a bearing, the coil pipe shakes, a connector is damaged, and normal work of a cooler is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbines, in particular to an oil cooling structure for water turbine bearings. Background Art

[0002] A water turbine is a power machine that converts the energy of water flow into rotational mechanical energy. It belongs to the turbine machinery in fluid machinery. The oil cooling structure for water turbine bearings is a device used to maintain the appropriate temperature of the bearings and prevent overheating damage. It usually includes an oil tank (bearing box), an oil cooler, an oil pump, and pipelines.

[0003] However, it still has the following disadvantages in actual use:

[0004] The coil is placed in the oil tank, and the lubricating oil in the oil tank is exchanged with heat through an external oil pump and radiator. Usually, the coil is placed in the oil tank. Under the high-speed movement of the bearing, the vibration generated will cause the coil to shake, resulting in damage to the interface and affecting the normal operation of the cooler. Utility Model Content

[0005] The purpose of the utility model is to provide an oil cooling structure for a turbine bearing to solve the problem raised in the above-mentioned background technology that a coil is placed in an oil tank and the lubricating oil in the oil tank is exchanged for heat through an external oil pump and a radiator. Usually, the coil is placed in the oil tank. When the bearing moves at a high speed, the vibration generated will cause the coil to shake, resulting in damage to the interface and affecting the normal operation of the cooler.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is an oil cooling structure for a turbine bearing, comprising:

[0008] A main body assembly, the main body assembly comprising a bearing oil tank and a coil;

[0009] The coil is placed inside the bearing oil tank;

[0010] A support assembly, the support assembly comprising a fixing plate, an embedded groove, a spring column and a clamping block;

[0011] The fixing plate is welded to the inner side of the bearing oil tank, the embedded groove is opened in the middle of the fixing plate away from the bearing oil tank, the spring column has a root and is inserted in the embedded groove, and the clamping block is connected to the movable end of the spring column by screws.

[0012] Furthermore, there are three groups of support components, one group is located in the middle of the coil, and the other two groups are located at both ends of the coil.

[0013] Furthermore, the main body assembly also includes a sealing cover and a guide bearing;

[0014] The sealing cover is connected to the top of the bearing oil box by screws, and the guide bearing is fixed to the inner bottom surface of the bearing oil box.

[0015] Furthermore, the main body assembly also includes a sliding rotor, a protective cover and a connecting pipe;

[0016] The sliding rotor is rotatably connected inside the guide bearing. There are two connecting pipes, which are welded to both ends of the coil respectively. The protective cover is connected to the connecting pipe through a flange, and the protective cover is located above the sealing cover.

[0017] An oil pump and a radiator are installed inside the protective cover.

[0018] Further, it also includes an adjustment component;

[0019] The adjustment assembly includes a through hole and a connecting ring;

[0020] The through holes are arranged on both sides of the fixing plate, and the connecting ring is welded to the upper end of the spring column.

[0021] Furthermore, the adjustment assembly also includes a bolt, and the bolt is sequentially connected through the through hole and the connecting ring.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] 1. The utility model provides a support assembly. When installing the coil, the clamping block is pressed to shrink the spring column, and the clamping block moves to the embedded groove on the fixed plate. The coil is placed in the bearing oil tank, and the clamping block is released. Under the action of the spring column, the clamping block is clamped on the coil. This arrangement can prevent the coil from shaking during operation and damage to the joint.

[0024] Second, the utility model, through the setting of the adjustment component, moves the bolt along the through hole, drives the connection ring to move, and then drives the spring column to move, so that the position of the block can be adjusted to adapt to the position of the coil. On the other hand, the block can be increased or decreased according to the number of coils. This setting makes the support component more adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0027] Figure 2 This is a top view of the internal structure of the bearing oil tank of the utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the bearing oil tank of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the support assembly and the adjustment assembly of the utility model;

[0030] Figure 5 This is a schematic diagram of the fixed plate structure of the utility model;

[0031] Figure 6 This is a schematic diagram of the position of the connecting ring of the utility model.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 10. Bearing oil tank; 11. Sealing cover; 12. Sliding rotor; 13. Guide bearing; 14. Protective cover; 15. Connecting pipe; 16. Coil; 20. Fixing plate; 21. Embedded groove; 22. Spring column; 23. Block; 30. Through hole; 31. Connecting ring; 32. Bolt. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] See also Figure 1-6 As shown, this embodiment is an oil cooling structure for a turbine bearing, comprising:

[0038] The main body assembly includes a bearing oil tank 10 and a coil 16;

[0039] The coil 16 is placed inside the bearing oil tank 10;

[0040] The bearing oil tank 10 is filled with lubricating oil, which plays a role in lubricating and cooling the guide bearing 13, and the coil 16 is used for the circulation of the cooling liquid;

[0041] Support assembly, the support assembly includes a fixing plate 20, an embedded groove 21, a spring column 22 and a clamping block 23;

[0042] The fixing plate 20 is welded to the inner side of the bearing oil tank 10, the embedded groove 21 is opened in the middle of the fixing plate 20 away from the bearing oil tank 10, the spring column 22 has a root and is inserted into the embedded groove 21, and the clamping block 23 is connected to the movable end of the spring column 22 by screws;

[0043] The fixing plate 20 plays a supporting role, the embedded groove 21 is used to install the spring column 22, the spring column 22 has an extrusion function, and the clamping block 23 plays a limiting role;

[0044] There are three groups of support components, one group is located in the middle of the coil 16, and the other two groups are located at both ends of the coil 16;

[0045] The main assembly also includes a sealing cover 11 and a guide bearing 13;

[0046] The sealing cover 11 is connected to the top of the bearing oil box 10 by screws, and the guide bearing 13 is fixed to the inner bottom surface of the bearing oil box 10;

[0047] The sealing cover 11 plays a sealing role, and the guide bearing 13 is used to support the sliding rotor 12;

[0048] The main assembly also includes a sliding rotor 12, a protective cover 14 and a connecting pipe 15;

[0049] The sliding rotor 12 is rotatably connected to the inside of the guide bearing 13. There are two connecting pipes 15, which are welded to both ends of the coil 16. The protective cover 14 is connected to the connecting pipe 15 through a flange, and the protective cover 14 is located above the sealing cover 11.

[0050] An oil pump and a radiator are installed inside the protective cover 14;

[0051] The sliding rotor 12 is rotatable, the protective cover 14 plays a protective role, and the connecting pipe 15 is used to connect the coil 16 and the oil pump and radiator inside the protective cover 14.

[0052] Working principle:

[0053] When installing the coil 16, press the clamping block 23 to shrink the spring column 22, and move the clamping block 23 to the embedded groove 21 on the fixing plate 20, put the coil 16 into the bearing oil tank 10, release the clamping block 23, and the clamping block 23 is engaged with the coil 16 under the action of the spring column 22;

[0054] Three groups of support components wrap the coil 16 in the middle.

[0055] This step can prevent the coil 16 from shaking during operation and damage to the joints.

[0056] See also Figure 5-6 This embodiment is based on the above embodiment 1 and further includes:

[0057] An adjustment component, the adjustment component includes a through hole 30 and a connecting ring 31;

[0058] Through holes 30 are provided on both sides of the fixing plate 20, and a connecting ring 31 is welded to the upper end of the spring column 22;

[0059] The through hole 30 provides a movable space for the bolt 32 and plays a limiting role, and the connecting ring 31 plays a connecting role;

[0060] The adjustment assembly further includes a bolt 32, and the bolt 32 is sequentially connected through the through hole 30 and the connecting ring 31;

[0061] The bolt 32 serves as a connection. The spring column 22 can be positioned by tightening the bolt 32 .

[0062] Working principle:

[0063] Move the bolt 32 along the through hole 30 to drive the connecting ring 31 to move, and then drive the spring column 22 to move. When the block 23 moves to a suitable position, tighten the bolt 32;

[0064] If the number of the coils 16 increases or decreases, the number of the clamping blocks 23 can be increased or decreased according to the number of the coils 16.

[0065] This step makes the support assembly more adaptable.

[0066] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. The oil cooling structure for turbine bearings is characterized by: include: A main body assembly, the main body assembly comprising a bearing oil tank (10) and a coil (16); The coil (16) is placed inside the bearing oil tank (10); A support assembly, the support assembly comprising a fixing plate (20), an embedded groove (21), a spring column (22) and a clamping block (23); The fixing plate (20) is welded to the inner side of the bearing oil box (10); the embedded groove (21) is arranged in the middle of the fixing plate (20) on the side away from the bearing oil box (10); the spring column (22) has a root and is inserted into the embedded groove (21); and the clamping block (23) is connected to the movable end of the spring column (22) by means of screws.

2. The oil cooling structure for turbine bearings according to claim 1, characterized in that: There are three groups of support components, one group is located in the middle of the coil (16), and the other two groups are located at both ends of the coil (16).

3. The oil cooling structure for turbine bearings according to claim 1, characterized in that: The main body assembly also includes a sealing cover (11) and a guide bearing (13); The sealing cover (11) is connected to the top of the bearing oil box (10) by means of screws, and the guide bearing (13) is fixed to the inner bottom surface of the bearing oil box (10).

4. The oil cooling structure for turbine bearings according to claim 3 is characterized in that: The main body assembly also includes a sliding rotor (12), a protective cover (14) and a connecting pipe (15); The sliding rotor (12) is rotatably connected to the inside of the guide bearing (13), there are two connecting pipes (15), which are respectively welded to the two ends of the coil (16), and the protective cover (14) is connected to the connecting pipe (15) through a flange, and the protective cover (14) is located above the sealing cover (11); An oil pump and a radiator are installed inside the protective cover (14).

5. The oil cooling structure for turbine bearings according to claim 1, characterized in that: Also included are adjustment components; The adjustment component comprises a through hole (30) and a connecting ring (31); The through holes (30) are formed on both sides of the fixing plate (20), and the connecting ring (31) is welded to the upper end of the spring column (22).

6. The oil cooling structure for turbine bearings according to claim 5, characterized in that: The adjustment assembly further comprises a bolt (32), and the bolt (32) is sequentially penetrated and connected in the through hole (30) and the connecting ring (31).

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