Fan gear box convenient for lubricating oil supply

Abstract

The utility model provides a fan gearbox convenient for lubricating oil supply, which relates to the field of gearboxes and comprises a gearbox body and a lubricating oil supply device. The lubricating oil supply device comprises an oil inlet cylinder, a base, a limiting ring, a spring propelling device, a sealing ball and a mounting mechanism; a limiting ring is fixed to one port of the oil inlet cylinder, the other port of the oil inlet cylinder is fixed to the base, and a liquid inlet is formed in the base. The base extends out of the oil inlet cylinder to form a convex edge; the mounting mechanism is mounted on the convex edge; the lubricating oil supply device can be sealed and fixed at the oil inlet of the gearbox body through the mounting mechanism; the spring propelling device is fixed on the base in the oil inlet cylinder, the bottom end of the spring propelling device is fixed on the base, and the other end of the spring propelling device is fixed with the sealing ball; contact and separation of the sealing ball and the limiting ring can be achieved through the spring propelling device. Lubricating oil can be conveniently added to the gearbox, operation is easy, and leakage of the lubricating oil can be reduced.

Description

Technical Field

[0001] The present application relates to the field of gearboxes, and in particular to a fan gearbox that facilitates the supply of lubricating oil. Background Art

[0002] The gearbox is an important mechanical component that is widely used in wind turbines. Its main function is to transmit the power generated by the wind wheel under the action of wind to the wind turbine and make it get the corresponding speed.

[0003] Compared with other fans of the same type, wind turbines are usually installed outdoors and must withstand extreme temperature changes, high humidity, dust, salt spray corrosion and other harsh environmental conditions; when the wind speed changes, the wind turbine will bear uneven loads, including high torque and possible impact loads. Therefore, the gearbox of the wind turbine pays more attention to the coordination with the lubricant, and it is necessary to pay attention to and add lubricants from time to time to prevent gearbox damage caused by insufficient lubrication. The process of adding lubricants is inconvenient, and leakage is prone to occur during the addition process.

[0004] In view of the above-mentioned defects, the utility model proposes a fan gear box which is convenient for supplying lubricating oil, can conveniently add lubricating oil to the gear box, is simple to operate and can reduce lubricating oil leakage. Utility Model Content

[0005] The present application provides a fan gear box that is easy to supply lubricating oil to, which can conveniently add lubricating oil to the gear box, is simple to operate and can reduce lubricating oil leakage.

[0006] The present application provides a fan gearbox for facilitating lubricating oil supply, comprising a gearbox body and a lubricating oil supply device; the lubricating oil supply device comprises an oil inlet cylinder, a base, a limit ring, a spring propulsion device, a sealing ball and a mounting mechanism; one end of the oil inlet cylinder is fixed with the limit ring, the other end of the oil inlet cylinder is fixed on the base, and a liquid inlet is opened on the base; the base extends out of the oil inlet cylinder to form a convex edge, and the mounting mechanism is mounted on the convex edge; the lubricating oil supply device can be sealed and fixed at the oil inlet of the gearbox body through the mounting mechanism;

[0007] The spring propulsion device is fixed on the base in the oil inlet cylinder, the bottom end of the spring propulsion device is fixed on the base, and the other end of the spring propulsion device is fixed to the sealing ball; the contact and separation of the sealing ball and the limit ring can be achieved through the spring propulsion device.

[0008] Furthermore, the spring propulsion device includes a limit column and a spring, one end of the limit column is fixed on the base in the oil inlet cylinder, one end of the spring is sleeved on the limit column and fixed on the base, and the other end of the spring is fixed to the sealing ball, and the sealing ball is squeezed by the spring to contact and seal with the inner hole of the limit ring.

[0009] Furthermore, a fixed through groove is formed on the convex edge, a support seat is fixed on the edge of the oil inlet of the gear box body, and the support seat can extend into the fixed through groove; a through groove is formed on the support seat;

[0010] The installation mechanism includes a positioning cylinder, a screw rod, and a positioning block, wherein one side of the positioning cylinder is fixed on the convex edge, one end of the screw rod is sleeved in the positioning cylinder, and one end of the screw rod is fixed to the positioning block; the positioning block can be pushed out of the positioning cylinder and clamped in the through groove of the support seat through the screw rod.

[0011] Furthermore, the number of the installation mechanisms is 2 to 5, and the support seat, the fixing through slot and the installation mechanisms are arranged in coordination.

[0012] Furthermore, an internal thread is provided in the positioning tube, and the positioning tube is fixed to the screw rod through a threaded connection.

[0013] Furthermore, a first sealing ring is fixed to the bottom of the base.

[0014] Furthermore, a second sealing ring is fixed on the sealing ball, and the sealing ball and the limiting ring are contact-sealed via the second sealing ring.

[0015] Furthermore, the outer edge of the limiting ring is fixed on the inner wall of the oil inlet cylinder, and a cylinder cover is provided at one end of the oil inlet cylinder.

[0016] Furthermore, the oil inlet cylinder and the oil inlet port have the same diameter, and both the oil inlet cylinder and the oil inlet port can be opened and closed by the cylinder cover.

[0017] Furthermore, a gear box cover is provided at the oil inlet of the gear box body.

[0018] The present embodiment provides a fan gearbox that is convenient for lubricating oil supply, including a gearbox body and a lubricating oil supply device; the lubricating oil supply device includes an oil inlet cylinder, a base, a limit ring, a spring propulsion device, a sealing ball and a mounting mechanism; one end of the oil inlet cylinder is fixed with the limit ring, the other end of the oil inlet cylinder is fixed on the base, and the base is provided with a liquid inlet; the base extends out of the oil inlet cylinder to form a convex edge, and the mounting mechanism is mounted on the convex edge; the lubricating oil supply device can be sealed and fixed at the oil inlet of the gearbox body through the mounting mechanism; the spring propulsion device is fixed to the base in the oil inlet cylinder, the bottom end of the spring propulsion device is fixed to the base, and the other end of the spring propulsion device is fixed to the sealing ball; the spring propulsion device can realize the contact and separation of the sealing ball and the limit ring. The following technical effects can be achieved:

[0019] When there is no external force, the spring squeezes the sealing ball toward the limit ring, and the sealing ball and the limit ring are in contact and sealed through the second sealing ring to prevent leakage. When lubricating oil needs to be added, the sealing ball is pressed downward, and the sealing ball is separated from the limit ring, so that it is convenient to add lubricating oil; and the installation mechanism is used to realize the disassembly and connection of the lubricating oil supply device and the gear box, which is convenient to disassemble, replace and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a fan gearbox that facilitates lubricating oil supply provided by an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a lubricating oil supply device provided by an embodiment of the utility model;

[0023] Figure 3 The utility model embodiment provides Figure 1 A cross-sectional view of the middle part;

[0024] Figure 4 The utility model embodiment provides Figure 3 A partial enlarged view of middle A.

[0025] The above drawings have shown clear embodiments of the present invention, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

[0026] Description of reference numerals:

[0027] 10-gear box body;

[0028] 11- oil inlet; 12- support seat;

[0029] 20-installation mechanism;

[0030] 21-positioning cylinder; 22-positioning block; 23-screw;

[0031] 31- oil inlet cylinder; 32- limiting ring; 33- sealing ball; 34- second sealing ring; 35- cylinder cover;

[0032] 40- base;

[0033] 41-liquid inlet; 42-fixed through groove; 43-first sealing ring;

[0034] 51-spring; 52-limiting column. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the description of the present application, it should be understood that the terms used include "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. to indicate orientation or positional relationships. They are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the equipment or method of the present application. They are not used to indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In the specification and claims of the present application and the above-mentioned drawings, the terms "first", "second", and "third" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0039] In addition, the described terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions; for example, a process, method, system, product, or maintenance tool that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but also includes other steps or units not explicitly listed or inherent to these processes, methods, products, or maintenance tools.

[0040] A fan gearbox for facilitating lubricating oil supply provided in an embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0041] like Figure 1 to Figure 4 As shown, a fan gearbox for facilitating lubricating oil supply provided by an embodiment of the present application comprises a gearbox body 10 and a lubricating oil supply device; the lubricating oil supply device comprises an oil inlet cylinder 31, a base 40, a limit ring 32, a spring propulsion device, a sealing ball 33 and a mounting mechanism 20; one end of the oil inlet cylinder 31 is fixed with the limit ring 32, the other end of the oil inlet cylinder 31 is fixed on the base 40, and a liquid inlet 41 is opened on the base 40; the base 40 extends out of the oil inlet cylinder 31 to form a convex edge, and the mounting mechanism 20 is mounted on the convex edge; the lubricating oil supply device can be sealed and fixed at the oil inlet 11 of the gearbox body 10 through the mounting mechanism 20;

[0042] The spring propulsion device is fixed on the base 40 in the oil inlet cylinder 31, the bottom end of the spring propulsion device is fixed on the base 40, and the other end of the spring propulsion device is fixed to the sealing ball 33; the spring propulsion device can realize the contact and separation of the sealing ball 33 and the limit ring 32.

[0043] The lubricating oil supply device is described in detail below:

[0044] Specifically, the lubricating oil supply device includes an oil inlet cylinder 31, a base 40, a limit ring 32, a spring propulsion device, a sealing ball 33 and a mounting mechanism 20, and the spring propulsion device includes a limit column 52 and a spring 51;

[0045] Specifically, a limit ring 32 is fixed to one end of the oil inlet cylinder 31, and the other end of the oil inlet cylinder 31 is fixed to the base 40, and a liquid inlet 41 is opened on the base 40;

[0046] Specifically, one end of the limit column 52 is fixed on the base 40 in the oil inlet cylinder 31, one end of the spring 51 is sleeved on the limit column 52 and fixed on the base 40, and the other end of the spring 51 is fixed to the sealing ball 33. The sealing ball 33 is squeezed by the spring 51 to contact and seal with the inner hole of the limit ring 32.

[0047] Furthermore, the lubricating oil supply device also includes a second sealing ring 34. When the spring 51 presses the sealing ball 33 upward, the sealing ball 33 and the limit ring 32 are in close contact and sealed through the second sealing ring 34 to prevent leakage.

[0048] Specifically, the oil inlet cylinder 31, the stop ring 32, the spring 51 and the stop column 52 are arranged on the same central axis, and the sealing ball 33 can move on the central axis through the spring propulsion device; when there is no external force, the spring 51 presses the sealing ball 33 toward the stop ring 32, and the sealing ball 33 and the stop ring 32 are contacted and sealed through the second sealing ring 34 to prevent leakage. When lubricating oil needs to be added, the sealing ball 33 is pressed downward, and the sealing ball 33 is separated from the stop ring 32, thereby completing the addition of lubricating oil.

[0049] As an embodiment, the inner diameter of the oil inlet cylinder 31 is not less than the diameter of the lubricating oil barrel or the oil inlet pipe. The sealing ball 33 can be directly pressed to add lubricating oil using the opening of the lubricating oil barrel, or the sealing ball 33 can be pressed through the oil inlet pipe to add lubricating oil.

[0050] As an embodiment, the second sealing ring 34 is fixed on the sealing ball 33 at the contact position with the limiting ring 32;

[0051] As another embodiment, the second sealing ring 34 is fixed at the inner ring edge of the limiting ring 32 .

[0052] Furthermore, the outer edge of the limiting ring 32 is fixed on the inner wall of the oil inlet cylinder 31 , and a cylinder cover 35 is provided at one end of the oil inlet cylinder 31 .

[0053] Specifically, the limiting ring 32 is fixed on the inner wall of the oil inlet cylinder 31 near one end of the oil inlet cylinder 31, and a certain position is left between the fixed position and one end of the oil inlet cylinder 31 to facilitate the opening and closing of the cylinder cover 35;

[0054] Optionally, the cylinder cover 35 may be matched with the oil inlet cylinder 31 by a press-fitting manner, or may be connected to one end of the oil inlet cylinder 31 by a thread.

[0055] As an embodiment, a gear box cover is provided at the oil inlet 11 of the gear box body 10 .

[0056] As another embodiment, the oil inlet cylinder 31 and the oil inlet port 11 have the same diameter, and both the oil inlet cylinder 31 and the oil inlet port 11 can be opened and closed by the cylinder cover 35 .

[0057] Specifically, the barrel cover has a dust-proof function. According to different usage frequencies, if the gear box is not used for a long time, the oil inlet cylinder 31 can be covered.

[0058] Specifically, the lubricating oil supply device can be fixed to and disassembled from the gear box through the mounting mechanism 20, which facilitates the inspection and replacement of the lubricating oil supply device. During inspection and replacement, the lubricating oil supply device can be disassembled and the oil inlet 11 can be covered by the gear box cover without affecting the normal operation of the gear box.

[0059] The mounting mechanism 20 is described in detail below:

[0060] Specifically, the base 40 extends out of the oil inlet cylinder 31 to form a convex edge, the mounting mechanism 20 is mounted on the convex edge, and a fixed through groove 42 is also formed on the convex edge. A support seat 12 is fixed to the edge of the oil inlet 11 of the gear box body 10, and the support seat 12 can extend into the fixed through groove 42; a through groove is formed on the support seat 12;

[0061] Specifically, the installation mechanism 20 includes a positioning cylinder 21, a screw 23, and a positioning block 22, wherein one side of the positioning cylinder 21 is fixed on the convex edge, one end of the screw 23 is sleeved in the positioning cylinder 21, and one end of the screw 23 is fixed to the positioning block 22; the positioning block 22 can be pushed out of the positioning cylinder 21 and clamped in the through groove of the support seat 12 through the screw 23.

[0062] Specifically, during installation, the screw 23 is pulled out to the outside of the positioning cylinder 21, and the positioning block 22 is placed in the positioning cylinder 21. After the support seat 12 is extended into the fixed through groove 42, the screw 23 is pushed toward the inside of the positioning cylinder 21 to push the positioning block 22 into the through groove on the support seat 12, thereby achieving a tight connection between the installed lubricating oil supply device and the gear box body 10.

[0063] Furthermore, the convex edge of the base 40 is set to fix the mounting mechanism 20, and the fixing and disassembly of the lubricating oil supply device and the gear box body 10 are completed by cooperating with the fixing groove 42 and the support seat 12. The base 40 can be round, square, irregular, etc.

[0064] Specifically, the number of the mounting mechanisms 20 is 2 to 5, and the support base 12 and the fixing slots 42 are arranged in coordination with the mounting mechanisms 20 , that is, the number of the mounting mechanisms 20 and the support base 12 and the fixing slots 42 are the same and they are arranged in coordination with each other.

[0065] Furthermore, the outer edge of the oil inlet cylinder 31 of the mounting mechanism 20 is evenly and equidistantly arranged, and the supporting seat 12 is fixed to the outer edge of the oil inlet 11 evenly and equidistantly arranged, and fixed at a corresponding position that can pass through the fixed through groove 42.

[0066] Specifically, an internal thread is provided in the positioning cylinder 21, and the positioning cylinder 21 and the screw rod 23 are fixed by threaded connection.

[0067] Specifically, a first sealing ring 43 is fixed to the bottom of the base 40 .

[0068] Specifically, the diameter of the first sealing ring 43 is not less than the diameter of the oil inlet 11. When the lubricating oil supply device is installed on the gear box through the mounting mechanism 20, the first sealing ring 43 is tightly connected to the outer edge of the oil inlet 11 to prevent leakage between the base 40 and the gear box oil inlet 11.

[0069] The embodiment of the present application provides a fan gearbox that is convenient for lubricating oil supply, including a gearbox body 10 and a lubricating oil supply device; the lubricating oil supply device includes an oil inlet cylinder 31, a base 40, a limit ring 32, a spring propulsion device, a sealing ball 33 and a mounting mechanism 20; one end of the oil inlet cylinder 31 is fixed with the limit ring 32, and the other end of the oil inlet cylinder 31 is fixed on the base 40, and a liquid inlet 41 is opened on the base 40; the base 40 extends out of the oil inlet cylinder 31 to form a convex edge, and the mounting mechanism 20 is installed on the convex edge; the lubricating oil supply device can be sealed and fixed at the oil inlet 11 of the gearbox body 10 through the mounting mechanism 20; the spring propulsion device is fixed on the base 40 in the oil inlet cylinder 31, the bottom end of the spring propulsion device is fixed on the base 40, and the other end of the spring propulsion device is fixed to the sealing ball 33; the contact and separation of the sealing ball 33 and the limit ring 32 can be achieved through the spring propulsion device.

[0070] The embodiments of the present application can achieve the following technical effects:

[0071] In the gearbox provided in this embodiment, when there is no external force, the spring 51 squeezes the sealing ball 33 toward the limiting ring 32, and the sealing ball 33 and the limiting ring 32 are in contact and sealed through the second sealing ring 34 to prevent leakage. When lubricating oil needs to be added, the sealing ball 33 is pressed downward, and the sealing ball 33 is separated from the limiting ring 32, thereby completing the addition of lubricating oil. The sealing ball 33 can be directly pressed using the opening of the lubricating oil barrel to add lubricating oil, or the sealing ball 33 can be pressed through the oil inlet pipe. The lubricating oil is added through the oil inlet pipe, which is convenient to use and not prone to leakage;

[0072] The gearbox provided in this embodiment realizes the disassembly and connection of the lubricating oil supply device and the gearbox through the installation mechanism 20. During installation, the screw 23 is pulled out to the outside of the positioning cylinder 21, and the positioning block 22 is placed in the positioning cylinder 21. After the support seat 12 is extended into the fixed through groove 42, the screw 23 is pushed to the inside of the positioning cylinder 21, and the positioning block 22 is pushed into the through groove on the support seat 12 to realize the tight connection between the lubricating oil supply device and the gearbox body 10. It is easy to disassemble and install, and is convenient for replacement and maintenance; during maintenance and replacement, the lubricating oil supply device can be disassembled, and the oil inlet 11 can be covered by the gearbox cover without affecting the normal operation of the gearbox.

[0073] The spring propulsion device can make the sealing ball 33 and the limit ring 32 closely contact through the second sealing ring 34. When the lubricating oil supply device is installed on the gear box through the installation mechanism 20, the first sealing ring 43 is closely connected to the outer edge of the oil inlet 11 to prevent oil leakage.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A fan gearbox that facilitates lubricating oil supply, characterized in that: It comprises a gearbox body and a lubricating oil supply device; the lubricating oil supply device comprises an oil inlet cylinder, a base, a limit ring, a spring propulsion device, a sealing ball and a mounting mechanism; one end of the oil inlet cylinder is fixed with the limit ring, the other end of the oil inlet cylinder is fixed on the base, and a liquid inlet is opened on the base; the base extends out of the oil inlet cylinder to form a convex edge, and the mounting mechanism is mounted on the convex edge; the lubricating oil supply device can be sealed and fixed at the oil inlet of the gearbox body through the mounting mechanism; The spring propulsion device is fixed on the base in the oil inlet cylinder, the bottom end of the spring propulsion device is fixed on the base, and the other end of the spring propulsion device is fixed to the sealing ball; the contact and separation of the sealing ball and the limit ring can be achieved through the spring propulsion device.

2. The gearbox according to claim 1, characterized in that: The spring propulsion device includes a limit column and a spring, one end of the limit column is fixed on the base in the oil inlet cylinder, one end of the spring is sleeved on the limit column and fixed on the base, the other end of the spring is fixed to the sealing ball, and the sealing ball is squeezed by the spring to contact and seal with the inner hole of the limit ring.

3. The gearbox according to claim 1, characterized in that: The convex edge is also provided with a fixed through groove, and the edge of the oil inlet of the gear box body is fixed with a support seat, and the support seat can extend into the fixed through groove; the support seat is provided with a through groove; The installation mechanism includes a positioning cylinder, a screw rod, and a positioning block, wherein one side of the positioning cylinder is fixed on the convex edge, one end of the screw rod is sleeved in the positioning cylinder, and one end of the screw rod is fixed to the positioning block; the positioning block can be pushed out of the positioning cylinder and clamped in the through groove of the support seat through the screw rod.

4. The gearbox according to claim 3, characterized in that: The number of the installation mechanisms is 2 to 5, and the support seat, the fixing through slot and the installation mechanism are arranged in coordination.

5. The gearbox according to claim 3, characterized in that: An internal thread is arranged in the positioning cylinder, and the positioning cylinder is fixed to the screw rod through a threaded connection.

6. The gearbox according to claim 1, characterized in that: A first sealing ring is also fixed to the bottom of the base.

7. The gearbox according to claim 1, characterized in that: A second sealing ring is also fixed on the sealing ball, and the sealing ball and the limiting ring are contacted and sealed through the second sealing ring.

8. The gearbox according to claim 1, characterized in that: The outer edge of the limiting ring is fixed on the inner wall of the oil inlet cylinder, and a cylinder cover is provided at one end of the oil inlet cylinder.

9. The gearbox according to claim 8, characterized in that: The oil inlet cylinder and the oil inlet port have the same diameter, and both the oil inlet cylinder and the oil inlet port can be opened and closed by the cylinder cover.

10. The gearbox according to claim 1, characterized in that A gear box cover is provided at the oil inlet of the gear box body.

Images