Air filtering device of wind power gear box

Abstract

The air filtering device of the wind power gear box comprises an installation opening formed in the upper end of the wind power gear box and a filter element body, the installation opening communicated with an inner cavity is formed in the upper end of the wind power gear box, and an installation base is detachably and fixedly installed at the upper end of the installation opening. Two groups of mounting grooves in butt joint with the filter element body longitudinally penetrate through the upper end of the mounting seat, storage grooves are symmetrically formed in the inner walls of the two sides of the mounting grooves, sealing blocks in butt joint fit are transversely and slidably arranged in the storage grooves, fixing frames are fixedly connected to the positions, located on the two sides of the mounting grooves, of the upper end of the mounting seat, and connecting sleeves are fixedly connected to the upper end and the lower end of the filter element body. The filter element bodies are integrally mounted at the upper end of the wind power gear box in a limiting and clamping manner through a portable dismounting structure, the dismounting operation is very simple and convenient, and the two groups of filter element bodies are designed, so that the other group of filter element bodies can still stably filter air in the overhaul and maintenance process, the normal operation of equipment is ensured, and the service life of the equipment is prolonged. And the practical effect is obviously improved.

Description

Technical Field

[0001] The utility model relates to the field of gear boxes, and more specifically, to an air filtering device for a wind power gear box. Background Art

[0002] When the wind turbine gearbox is in continuous operation, the temperature will become very high, up to about 75 degrees, causing the gas inside the gearbox to expand and generate hot air flow. In order not to damage the dynamic oil seal and lubrication system of the gearbox, an air filter, i.e. a breather cap, is required to balance the atmospheric pressure inside and outside the gearbox through ventilation.

[0003] The existing wind turbine gearbox air filter is directly installed on the box body through fasteners. After the gearbox has been running for a period of time, the air filter will filter out dust and impurities in the air and cause partial blockage. At this time, the air filter device needs to be dismantled for inspection and maintenance. The staff needs to carry tools for processing. In addition, the air filtering effect cannot be achieved during the maintenance of the air filter device, which will affect the normal operation of the air filter. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] The purpose of the utility model is to provide an air filtering device for a wind turbine gearbox to solve the related problems raised in the above background technology.

[0006] 2. Technical solution

[0007] An air filtering device for a wind turbine gearbox comprises a mounting port arranged at the upper end of the wind turbine gearbox and a filter element body, wherein the upper end of the wind turbine gearbox is provided with a mounting port connected to an inner cavity, and a mounting seat is detachably fixedly installed on the upper end of the mounting port, and two groups of mounting grooves docked to the filter element body are longitudinally penetrated through the upper end of the mounting seat, and receiving grooves are symmetrically arranged on the inner walls on both sides of the mounting groove, and a sealing block that docks and slides transversely in the receiving groove is arranged, and the upper end of the mounting seat is fixedly connected to a fixing frame at both sides of the mounting groove, and the upper and lower ends of the filter element body are fixedly connected to a connecting sleeve, and the connecting sleeve at the upper end of the filter element body is located between the relative fixing frames.

[0008] Preferably, a mounting plate is fixedly connected to the outer side of the mounting seat near the bottom, and the mounting plate is detachably fixed to the top of the mounting slot at the upper end of the wind gear box by fasteners, and a sealing gasket is also provided on the contact surface between the bottom of the mounting plate and the wind gear box.

[0009] Preferably, the inner side surface of the sealing block is connected to the inner wall of the receiving groove through a spring telescopic pin, and the butt joint surface of the sealing block adopts an inclined surface structure design.

[0010] Preferably, the fixed frame is provided with an inner groove, and a plug-in groove connected to the inner groove is transversely penetrated on the outer side of the fixed frame, and a sliding groove connected to the inner cavity is also provided on the upper end of the fixed frame, and a latch is inserted transversely through the plug-in groove, and a sliding block is fixedly connected to the inner end of the latch, and the upper end of the sliding block slides through the sliding groove.

[0011] Preferably, a clamping hole is provided on the outer side of the connecting sleeve at the upper end of the filter element body, and the clamping hole is clamped and matched with the outer end of the latch.

[0012] Preferably, the outer side of the sliding block is connected to the inner wall of the inner groove through a spring, and the spring and the spring telescopic pin are both in an extended state in a default state.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The utility model installs two groups of filter element bodies at the same time by arranging a mounting seat at the upper end of the wind power gear box, and completes the rapid limited clamping installation by clamping the pin structure in the fixing frame into the clamping hole on the outer side of the connecting sleeve on the upper end of the filter element body, and the disassembly and assembly operations are very simple and convenient; and the design of the two groups of filter element bodies, so that when one group is being overhauled and maintained, the other group can still perform air filtering operations stably, and at the same time, when one group of filter element bodies is disassembled for overhaul and maintenance, the two groups of sealing blocks in the mounting groove will seal the mounting groove to prevent unfiltered air from directly entering the wind power gear box, thereby ensuring the normal operation of the equipment, having a significantly improved practical effect, and worthy of promotion and use in the existing market. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the mounting seat structure of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the fixing frame and the connection structure of the utility model.

[0019] Explanation of the numbers in the figure: 1-wind power gearbox, 2-mounting port, 3-mounting seat, 301-mounting plate, 4-mounting slot, 5-storage slot, 6-sealing block, 601-spring telescopic pin, 602-inclined surface, 7-fixing frame, 701-inner slot, 702-plug slot, 703-sliding slot, 704-plug pin, 705-slider, 706-spring, 8-filter element body, 9-connecting sleeve, 901-card hole. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 utility model can be understood according to specific circumstances.

[0023] See also Figure 1-3 , an air filtering device for a wind turbine gearbox, comprising a mounting port 2 and a filter element body 8 arranged at the upper end of a wind turbine gearbox 1, a mounting port 2 communicating with an inner cavity is arranged at the upper end of the wind turbine gearbox 1, a mounting seat 3 is detachably fixedly installed at the upper end of the mounting port 2, two groups of mounting grooves 4 docked with the filter element body 8 are longitudinally penetrated through the upper end of the mounting seat 3, receiving grooves 5 are symmetrically arranged on the inner walls on both sides of the mounting groove 4, and a sealing block 6 for docking and fitting is horizontally slidably arranged in the receiving groove 5, the upper end of the mounting seat 3 is fixedly connected to a fixing frame 7 at both sides of the mounting groove 4, and the upper and lower ends of the filter element body 8 are fixedly connected to a connecting sleeve 9, and the connecting sleeve 9 at the upper end of the filter element body 8 is located between the opposite fixing frames 7.

[0024] Among them, the outer side of the mounting seat 3 near the bottom is fixedly connected with a mounting plate 301, and the mounting plate 301 is detachably fixedly installed on the top of the mounting groove 4 at the upper end of the wind power gear box 1 through fasteners. A sealing gasket is also provided on the contact surface between the bottom of the mounting plate 301 and the wind power gear box 1. The inner side of the sealing block 6 is connected to the inner wall of the storage groove 5 through a spring telescopic pin 601. The butt joint surface of the sealing block 6 adopts an inclined surface 602 structural design. The fixing frame 7 has an inner groove 701 built in, and the outer side of the fixing frame 7 is horizontally penetrated with a plug-in groove 702 connected to the inner groove 701. A sliding groove 703 communicating with the inner cavity is also provided at the upper end of the fixed frame 7, and a plug pin 704 is inserted horizontally through the plug-in groove 702, and a slider 705 is fixedly connected to the inner end of the plug pin 704, and the upper end of the slider 705 slides through the sliding groove 703, and a clamping hole 901 is provided on the outer side of the connecting sleeve 9 at the upper end of the filter element body 8, and the clamping hole 901 is clamped with the outer end of the plug pin 704, and the outer side of the slider 705 is connected to the inner wall of the inner groove 701 through a spring 706, and the spring 706 and the spring telescopic pin 601 are both in an elastically extended state under the default state.

[0025] Based on the above structure, when the device is in use, the staff docks the mounting seat 3 with the mounting slot 4 at the upper end of the wind turbine gearbox 1, and uses fasteners to fix the mounting plate 301 on the outside of the mounting seat 3 to the upper end of the wind turbine gearbox 1, completing the detachable fixed installation of the mounting seat 3, and cooperates with the sealing gasket at the bottom of the mounting plate 301 to increase the sealing effect of the connection with the mounting slot 4. Then, the two groups of filter element bodies 8 are inserted into the mounting slot 4 at the upper end of the mounting seat 3 in turn, and before plugging in, the slider 705 is pre-slid and the spring 706 is squeezed, so that the latch 704 on the outside of the slider 705 slides inward and is received in the inner groove 701 of the fixed frame 7. At this time, the filter element body 8 is smoothly inserted into the mounting slot 4, and the connecting sleeve 9 at the bottom of the filter element body 8 will dock with the inclined surface 602 at the upper end of the sealing block 6 during the downward pressing process, thereby squeezing the sealing block 6 to slide horizontally into the receiving groove 5 and compressing the inner side thereof. The spring retractable pin 601 is inserted until the card hole 901 on the outer side of the connecting sleeve 9 at the upper end of the filter element body 8 is docked between the relatively arranged fixed frames 7. At this time, the slider 705 is driven to slide along the sliding groove 703 under the elastic restoring force of the spring 706, and the plug 704 on the outer side of the slider 705 is driven to slide along the plugging groove 702 and be clamped to the card hole 901 on the outer side of the connecting sleeve 9, that is, the clamping limit of the filter element body 8 is completed, and the filter element body 8 is detachably fixed and installed in the mounting groove 4 at the upper end of the mounting seat 3. The whole process can be completed without relying on external tools, and in the subsequent disassembly, when one group of filter element bodies 8 is inspected and maintained, the other group of filter element bodies 8 can still work, and after the filter element body 8 is taken out of the mounting groove 4, the sealing block 6 is docked with each other again under the elastic restoring force of the spring retractable pin 601, and the mounting groove 4 is relatively sealed to prevent unfiltered air from entering the wind power gearbox 1, which has a good protection effect.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An air filter device for a wind turbine gearbox, comprising a mounting port (2) arranged at the upper end of the wind turbine gearbox (1) and a filter element body (8), characterized in that: The wind turbine gearbox (1) is provided with a mounting opening (2) communicating with the inner cavity at the upper end, a mounting seat (3) is detachably fixedly installed at the upper end of the mounting opening (2), two groups of mounting grooves (4) that are connected to the filter element body (8) are longitudinally penetrated at the upper end of the mounting seat (3), receiving grooves (5) are symmetrically arranged on the inner walls on both sides of the mounting groove (4), and a sealing block (6) that is connected to the receiving groove (5) is horizontally slidably arranged in the receiving groove (5), the upper end of the mounting seat (3) is fixedly connected to a fixing frame (7) at both sides of the mounting groove (4), and the upper and lower ends of the filter element body (8) are fixedly connected to a connecting sleeve (9), and the connecting sleeve (9) at the upper end of the filter element body (8) is located between the opposite fixing frames (7).

2. The air filter device for a wind turbine gearbox according to claim 1, characterized in that: A mounting plate (301) is fixedly connected to the outer side of the mounting seat (3) near the bottom, and the mounting plate (301) is detachably fixedly mounted on the top of the mounting groove (4) at the upper end of the wind turbine gear box (1) by means of fasteners, and a sealing gasket is also provided on the contact surface between the bottom of the mounting plate (301) and the wind turbine gear box (1).

3. The air filter device for a wind turbine gearbox according to claim 2, characterized in that: The inner side surface of the sealing block (6) is connected to the inner wall of the receiving groove (5) via a spring telescopic pin (601), and the butt joint surface of the sealing block (6) adopts an inclined surface (602) structural design.

4. The air filter device for a wind turbine gearbox according to claim 3, characterized in that: The fixed frame (7) has an inner groove (701) built in, and a plug-in groove (702) communicating with the inner groove (701) is transversely penetrated on the outer side of the fixed frame (7), and a sliding groove (703) communicating with the inner cavity is also provided on the upper end of the fixed frame (7), and a latch (704) is inserted transversely through the plug-in groove (702), and a sliding block (705) is fixedly connected to the inner side end of the latch (704), and the upper end of the sliding block (705) slides through the sliding groove (703).

5. The air filter device for a wind turbine gearbox according to claim 4, characterized in that: A clamping hole (901) is provided on the outer side of the connecting sleeve (9) at the upper end of the filter element body (8), and the clamping hole (901) is clamped and matched with the outer end of the latch (704).

6. The air filter device for a wind turbine gearbox according to claim 5, characterized in that: The outer side of the slider (705) is connected to the inner wall of the inner groove (701) via a spring (706), and the spring (706) and the spring telescopic pin (601) are both in an extended state in a default state.

Images