Device for replacing filter element of wind power generation gearbox

Abstract

The utility model relates to the technical field of gearbox filtering systems, in particular to a wind power generation gearbox filter element replacing device which comprises an inner rod and a sleeve, a ball is arranged at the bottom end of the sleeve, a bottom ring is fixedly arranged at the bottom end of the inner rod, three connecting rod structures are hinged to the outer circumferential face of the bottom ring, and each connecting rod structure comprises a supporting rod A and a supporting rod B which are hinged end to end. The top end surface of the top ring is provided with a sphere concave ring groove for embedding the sphere. According to the device, the whole device is stuffed into the middle hole of the gearbox filter element, the sleeve is rotated to move downwards to unfold the connecting rod structure, so that the connecting rod structure clamps the middle hole of the gearbox filter element, the sleeve is in threaded fit, the stability is high, and the gearbox filter element can be easily taken out by lifting the whole device; and a rubber sheet is fixedly arranged on the outer side of the double-fork beam at the top end of the supporting rod B, so that the contact friction force between the connecting rod structure and a middle hole of the gearbox filter element can be increased, and the situation that the gearbox filter element slides relative to the device in the lifting process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box filter system technical field, concretely related to a wind power gear box filter core replacement device. BACKGROUND

[0002] The lubricating oil is continuously polluted by metal particles, dust, moisture and other impurities during the operation of the gear box, and if these impurities are not removed in time, the performance of the lubricating oil will be seriously affected, and the cleanliness will be reduced. Through the filter system, these pollutants can be effectively removed to maintain the cleanliness of the oil and prevent the impurities from damaging the internal components of the gear box. Clean lubricating oil can better play a lubricating role and reduce the wear of the internal components of the gear box, thereby reducing the failure rate of the equipment. The main filtering part of the filter system is the filter core structure. After long-term filtering of impurities, the surface filter hole is gradually saturated and blocked, and the filter core part needs to be replaced regularly. Since the filter core is located in the narrow filter inside and the filter core surface is attached with oil stains, manual extraction is difficult and prone to slip during the extraction process. Therefore, it is urgent to improve, and thus we propose a wind power gear box filter core replacement device. SUMMARY

[0003] In view of the above technical problems in the related art, the utility model provides a wind power gear box filter core replacement device, which can solve the above problems.

[0004] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0005] A wind power gear box filter core replacement device, comprising an inner rod and a sleeve, a threaded section engaged with the inner wall of the sleeve is formed in the middle of the inner rod, a short shaft is fixedly arranged on the surface of the bottom end of the sleeve, a ball is fixedly arranged on the bottom end of the short shaft, a bottom ring is fixedly arranged on the bottom end of the inner rod, three link structures are hingedly connected to the outer circumferential surface of the bottom ring, the three link structures each comprise a first hingedly connected support rod A and a second hingedly connected support rod B, the top ends of the three link structures are hingedly connected to a top ring, a ball recessed ring groove is formed on the top end surface of the top ring to accommodate the ball, and an inner ring cover and an outer ring cover are concentrically arranged on the top end surface of the top ring by bolts to restrict the ball in the ball recessed ring groove.

[0006] Further, a double fork beam is integrally formed on the top end of the support rod B, the double fork beam on the top end of the support rod B is hingedly connected to the bottom end of the support rod A by a shaft pin, and rubber is fixedly arranged on the outer side of the double fork beam on the top end of the support rod B.

[0007] Further, three U-shaped hinged frames A are arranged around the outer circumferential surface of the top ring, three U-shaped hinged frames B are arranged around the outer circumferential surface of the bottom ring, the top end of the support rod A is hingedly connected to the U-shaped hinged frame A by a shaft pin, and the shaft pin at the bottom end of the support rod B is hingedly connected to the U-shaped hinged frame B.

[0008] Furthermore, U-shaped hinge frame A and U-shaped hinge frame B are vertically aligned.

[0009] Furthermore, the top ring is fitted below the threaded section of the inner rod and does not contact the threaded section.

[0010] Furthermore, a handle A is fixedly installed on the outer side of the top end of the inner rod, and a handle B is fixedly installed on the outer side of the top end of the sleeve.

[0011] The beneficial effects of this utility model are as follows: The device of this application adjusts the connecting rod structure to a vertical state and inserts the entire device into the middle hole of the gearbox filter element. By rotating the sleeve downward, the connecting rod structure is unfolded, so that the connecting rod structure clamps the middle hole of the gearbox filter element. The sleeve has a threaded fit with high stability. The gearbox filter element can be easily removed by lifting the entire device.

[0012] By fixing a rubber sheet to the outside of the double fork beam at the top of support rod B, the contact friction between the connecting rod structure and the hole in the gearbox filter element can be increased, reducing the relative sliding of the gearbox filter element with the device during the lifting process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] Fig. 1 This is a 3D view of a wind turbine gearbox filter replacement device;

[0016] Fig. 2 This is a partial sectional view of the top ring.

[0017] In the picture:

[0018] 1. Inner rod; 101. Threaded section; 102. Handle A; 2. Sleeve; 201. Handle B; 3. Short shaft; 301. Ball; 4. Top ring; 401. Inner ring cover; 402. Outer ring cover; 403. Ball concave ring groove; 5. Connecting rod structure; 501. U-shaped hinge frame A; 502. Support rod A; 503. Support rod B; 504. U-shaped hinge frame B; 6. Rubber sheet; 7. Bottom ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0020] like Figs. 1-2 As shown, this utility model discloses a wind power gearbox filter element replacement device, including an inner rod 1 and a sleeve 2. The inner rod 1 has a threaded section 101 in the middle that meshes with the inner wall of the sleeve 2. A short shaft 3 is fixedly installed on the bottom surface of the sleeve 2. A ball 301 is fixedly installed at the bottom end of the short shaft 3. A bottom ring 7 is fixedly installed at the bottom end of the inner rod 1. Three connecting rod structures 5 are hinged to the outer circumference of the bottom ring 7. The connecting rod structure 5 includes a support rod A502 and a support rod B503 that are hinged to each other. The top ends of the three connecting rod structures 5 are all hinged to a top ring 4. A ball concave ring groove 403 is opened on the top surface of the top ring 4 to accommodate the ball 301. An inner ring cover 401 and an outer ring cover 402 are concentrically installed on the top surface of the top ring 4 by bolts to restrict the ball 301 in the ball concave ring groove 403.

[0021] Example 1: The inner rod 1 has a threaded section 101 on its surface. The threaded section 101 does not intersect with the position of the top ring 4 in a completely vertical state. That is, the top ring 4 does not have a threaded section 101 in its stroke range on the inner rod 1. The sleeve 2 is threadedly engaged with the threaded section 101. The bottom end of the sleeve 2 is connected to a short shaft 3 and a ball 301. The ball groove 403 at the top of the top ring 4 can accommodate three-quarters of the volume of the ball 301. The inner ring cover 401 and the outer ring cover 402 are both located above the center height of the ball 301 to limit the ball 301. While ensuring that the ball 301 does not fall out within the concave annular groove 403, it is also ensured that the ball 301 can move within the concave annular groove 403. During the rotation of the sleeve 2, the ball 301 moves within the concave annular groove 403, and at the same time, the position of the bottom end of the sleeve 2 changes, thereby pushing the top ring 4 to rise or fall. When the top ring 4 rises, it can pull the connecting rod structure 5 to a vertical state. When the top ring 4 falls, it can drive the support rod A502 and support rod B503 to a V-shape. The three connecting rod structures 5 are all adjusted synchronously to expand their width, thereby facilitating the adaptation to the inner wall diameter of the gearbox filter element.

[0022] In the preferred technical solution, the top of the support rod B503 is integrally formed with a double fork beam. The double fork beam at the top of the support rod B503 is hinged to the bottom of the support rod A502 via a shaft pin. A rubber sheet 6 is fixedly installed on the outer side of the double fork beam at the top of the support rod B503. When the support rod A502 and the support rod B503 are unfolded in a V-shape, the rubber sheet 6 can preferentially fit with the gearbox filter element, thereby increasing the contact friction between the connecting rod structure 5 and the hole in the gearbox filter element and reducing the relative sliding between the gearbox filter element and the device during the lifting process.

[0023] In the preferred technical solution, three U-shaped hinge frames A501 are arranged around the outer circumference of the top ring 4, and three U-shaped hinge frames B504 are arranged around the outer circumference of the bottom ring 7. The top end of the support rod A502 is hinged to the U-shaped hinge frame A501 through a shaft pin, and the bottom end of the support rod B503 is hinged to the U-shaped hinge frame B504 through a shaft pin. The U-shaped hinge frames A501 and B504 are vertically aligned. The U-shaped hinge frames A501, support rod A502, support rod B503 and U-shaped hinge frames B504 form a clamping width adjustable structure. The clamping width is increased by adjusting the included angle of the support rods A502 and B503. The smaller the included angle, the larger the clamping width.

[0024] In the preferred technical solution, the top ring 4 is sleeved below the threaded section 101 of the inner rod 1 and does not contact the threaded section 101, so that the top ring 4 can slide smoothly on the smooth section of the inner rod 1.

[0025] In the preferred technical solution, a handle A102 is fixedly provided on the outer side of the top end of the inner rod 1, which facilitates lifting the inner rod 1. A handle B201 is fixedly provided on the outer side of the top end of the sleeve 2, which facilitates rotating the sleeve 2.

[0026] In practical use, initially, keep the connecting rod structure 5 in a vertical position (the angle between support rod A502 and support rod B503 is 180°), insert the entire device into the central hole of the gearbox filter element, and then rotate the sleeve 2 to lower its bottom end. During the rotation of the sleeve 2, the ball 301 moves within the ball concave annular groove 403, and at the same time, the position of the bottom end of the sleeve 2 changes, thereby pushing the top ring 4 to descend. Since the position of the bottom ring 7 is fixed, when the top ring 4 approaches the bottom ring 7, the angle between support rod A502 and support rod B503 gradually decreases, and support rod A502 and support rod B503 unfold in a V-shape until the rubber sheet 6 is pressed against the inner wall of the central hole of the gearbox filter element. At this time, simply lift the inner rod 1, and the entire gearbox filter element can be removed for replacement.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wind power generator gearbox filter element replacement device, characterized in that, The device includes an inner rod (1) and a sleeve (2). The inner rod (1) has a threaded section (101) in the middle that meshes with the inner wall of the sleeve (2). A short shaft (3) is fixedly provided on the bottom surface of the sleeve (2). A ball (301) is fixedly provided at the bottom end of the short shaft (3). A bottom ring (7) is fixedly provided at the bottom end of the inner rod (1). Three connecting rod structures (5) are hinged to the outer circumference of the bottom ring (7). The connecting rod structures (5) include... The three connecting rods (5) are hinged to each other. The top ends of the three connecting rods (5) are all hinged to the top ring (4). The top surface of the top ring (4) is provided with a ball concave ring groove (403) for accommodating the ball (301). The top surface of the top ring (4) is provided with an inner ring cover (401) and an outer ring cover (402) for confining the ball (301) in the ball concave ring groove (403) by bolts.

2. The wind power gearbox filter element replacement device according to claim 1, characterized in that, The top of the support rod B (503) is integrally formed with a double fork beam. The double fork beam at the top of the support rod B (503) is hinged to the bottom of the support rod A (502) by a shaft pin. A rubber sheet (6) is fixedly installed on the outside of the double fork beam at the top of the support rod B (503).

3. The wind power gearbox filter element replacement device according to claim 2, characterized in that, The top ring (4) is surrounded by three U-shaped hinge frames A (501) on its outer circumference, and the bottom ring (7) is surrounded by three U-shaped hinge frames B (504) on its outer circumference. The top end of the support rod A (502) is hinged to the U-shaped hinge frame A (501) by a pin, and the bottom end of the support rod B (503) is hinged to the U-shaped hinge frame B (504) by a pin.

4. A wind power gearbox filter element replacement device according to claim 3, characterized in that, The U-shaped hinge frame A (501) and the U-shaped hinge frame B (504) are vertically aligned.

5. A wind power gearbox filter element replacement device according to claim 1, characterized in that, The top ring (4) is sleeved directly below the threaded section (101) of the inner rod (1) and does not contact the threaded section (101).

6. A wind power gearbox filter element replacement device according to claim 1, characterized in that, A handle A (102) is fixedly installed on the outer side of the top end of the inner rod (1), and a handle B (201) is fixedly installed on the outer side of the top end of the sleeve (2).

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