A wind turbine gearbox gear shaft bearing dismounting tool

Abstract

The utility model provides a kind of wind power gear box gear shaft bearing dismounting tool, it is related to dismounting tool technical field, including: fixed mechanism and propulsion mechanism, the propulsion mechanism is set to the top of fixed mechanism;The propulsion mechanism includes pressure plate, first support and second support, the top of first support is fixedly installed with fixed sleeve, the inner wall of fixed sleeve is provided with wear-resistant coating, the inside rotation of second support is provided with worm wheel.The utility model in, by adopting uniform clamping structure, cooperate centering axle sleeve positioning, guarantee the stress coaxial in the process of dismounting, avoid the damage of bearing and gear shaft completely, realize lossless dismounting, utilize sliding clamp platform fixed gear shaft axle stem, pressure plate separates gear shaft axle stem and bearing body, utilize propulsion assembly to provide power support for ejector rod, guarantee that ejector rod and gear shaft axle stem are coaxial, separate axle stem, bearing, improve dismounting efficiency, reduce manpower consumption.

Description

Technical Field

[0001] This utility model relates to the field of disassembly tools, and in particular to a disassembly tool for the gear shaft bearing of a wind turbine gearbox. Background Technology

[0002] The wind turbine gearbox is the core transmission component of a wind turbine generator set, and the fitting accuracy between the gear shaft and the bearing directly affects the operational stability of the unit. During equipment maintenance, the bearings need to be disassembled and replaced periodically due to wear, aging, and other issues.

[0003] In the existing technology, when using a traditional puller to disassemble a gear shaft bearing, the force is usually applied at one or two points. The bearing inner ring is subjected to concentrated force, which is prone to deformation and cracking. The surface of the gear shaft is also easily scratched by the claws. Furthermore, the lack of coaxial positioning and the uneven load cause damage to the surrounding seals and gear tooth surfaces. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the existing technology where, when using traditional pullers to disassemble gear shaft bearings, the force is usually applied at one or two points, the inner ring of the bearing is stressed, and it is easy to deform and crack. The surface of the gear shaft is also easily scratched by the claws. In addition, the lack of coaxial positioning and the uneven load cause damage to the surrounding seals and gear teeth. Therefore, a wind turbine gearbox gear shaft bearing disassembly tool is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a fixing mechanism and a propulsion mechanism, wherein the propulsion mechanism is disposed on top of the fixing mechanism; the propulsion mechanism includes a pressure plate, a first bracket, and a second bracket; a fixing sleeve is fixedly installed on the top of the first bracket; the inner wall of the fixing sleeve is provided with a wear-resistant coating; a worm gear is rotatably disposed inside the second bracket; a worm is inserted inside the fixing sleeve; the worm gear meshes with the worm; a push rod is fixedly installed at one end of the worm; a gear shaft is inserted inside the pressure plate; a bearing body is interference-fitted to the outer wall of the gear shaft; and the push rod is disposed at one end of the gear shaft.

[0006] Preferably, the fixing mechanism includes a support base, the top of which has a first groove, and a slider is slidably connected inside the first groove.

[0007] Preferably, a fixed support is fixedly installed on the top of the slider, and a set of second sliding grooves is provided inside the fixed support, and a sliding clamp is slidably connected inside each set of second sliding grooves.

[0008] Preferably, a bidirectional screw is inserted inside the fixed support, and the bidirectional screw passes through a set of sliding clamps.

[0009] Preferably, rubber pads are fixedly installed on opposite sides of each of the sliding clamps, and a first motor is fixedly installed at one end of the fixed support, with the output end of the first motor fixedly connected to one end of the bidirectional screw.

[0010] Preferably, a second motor is fixedly installed on one side of the second bracket, and the output end of the second motor is fixedly connected to the shaft of the worm gear.

[0011] Preferably, the pressure plate, the first bracket, and the second bracket are all fixedly installed on the top of the support base, and the gear shaft is disposed between a set of sliding clamps.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by adopting a uniform clamping structure and coordinating with a centering bushing for positioning, the force is ensured to be coaxial during disassembly, thus completely avoiding damage to the bearing and gear shaft and achieving non-destructive disassembly. The gear shaft rod is fixed by a sliding clamp, the pressure plate separates the gear shaft rod and the bearing body, and the push assembly provides power support for the push rod, ensuring that the push rod and the gear shaft rod are coaxial, separating the shaft rod and the bearing, improving disassembly efficiency and reducing manpower consumption.

[0014] 2. In this utility model, the bearing and shaft are respectively limited and fixed by the pressure plate and the sliding clamp. After the clamping assembly is fixed, the drive assembly is used to separate and disassemble. When the bearing is detached, it still stays on the outside of the worm gear to prevent the parts from bouncing and splashing, thus improving the safety of disassembly. Attached Figure Description

[0015] Figure 1 A perspective view of a tool for disassembling the gear shaft bearing of a wind turbine gearbox is provided for this utility model.

[0016] Figure 2 A side view of a tool for disassembling the gear shaft bearing of a wind turbine gearbox is provided for this utility model.

[0017] Figure 3 A perspective view of the fixing mechanism in a wind turbine gearbox gear shaft bearing disassembly tool is provided for this utility model.

[0018] Figure 4 This utility model provides a split diagram of the propulsion mechanism in a wind turbine gearbox gear shaft bearing disassembly tool.

[0019] Legend: 1. Fixing mechanism; 101. Support base; 102. First slide groove; 103. Slider; 104. Fixed support; 105. Second slide groove; 106. Sliding clamp; 107. Bidirectional screw; 108. Rubber pad; 109. First motor; 2. Propulsion mechanism; 201. Pressure plate; 202. First bracket; 203. Second bracket; 204. Fixed sleeve; 205. Wear-resistant coating; 206. Worm gear; 207. Worm; 208. Top rod; 209. Gear shaft; 210. Bearing body; 211. Second motor. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figures 1-4 As shown, this utility model provides a tool for disassembling the gear shaft bearing of a wind turbine gearbox, including: a fixing mechanism 1 and a propulsion mechanism 2. The propulsion mechanism 2 is disposed on the top of the fixing mechanism 1. The propulsion mechanism 2 includes a pressure plate 201, a first bracket 202 and a second bracket 203. A fixing sleeve 204 is fixedly installed on the top of the first bracket 202. The inner wall of the fixing sleeve 204 is provided with a wear-resistant coating 205. A worm gear 206 is rotatably disposed inside the second bracket 203. A worm 207 is inserted inside the fixing sleeve 204. The worm gear 206 meshes with the worm 207. A push rod 208 is fixedly installed at one end of the worm 207. A gear shaft rod 209 is inserted inside the pressure plate 201. A bearing body 210 is interference-fitted to the outer wall of the gear shaft rod 209. The push rod 208 is disposed at one end of the gear shaft rod 209.

[0023] The overall effect of Embodiment 1 is as follows: by inserting the gear shaft rod 209 into the inside of the pressure plate 201, the bearing body 210 is made to be in close contact with the side of the pressure plate 201 away from the fixed support 104. Then, the gear shaft rod 209 is fixed by the fixing mechanism 1. After the fixing is completed, the second motor 211 is started. The second motor 211 drives the worm gear 206 to mesh with the worm 207, so that the worm 207 extends out from one end of the fixed sleeve 204. The push rod 208 installed at one end of the worm 207 contacts the gear shaft rod 209. The continuous pushing of the worm 207 provides driving force to push the gear shaft rod 209 away from the inside of the bearing body 210. During the process of the gear shaft rod 209 gradually separating from the bearing body 210, the slider 103 slides inside the first groove 102, and the worm 207 extends out from inside the fixed sleeve 204. The pushing process always maintains coaxial linear motion, avoiding damage to the bearing and shaft due to uneven force.

[0024] Example 2: As Figures 1-4 As shown, the fixing mechanism 1 includes a support base 101, the top of which has a first slide groove 102, and a slider 103 is slidably connected inside the first slide groove 102; a fixing support 104 is fixedly installed on the top of the slider 103, and a set of second slide grooves 105 are provided inside the fixing support 104, each of which is slidably connected to a sliding clamp 106; a bidirectional screw 107 is inserted inside the fixing support 104, and the bidirectional screw 107 passes through the set of sliding clamps 106; the set of sliding clamps 106... Rubber pads 108 are fixedly installed on opposite sides of 6. A first motor 109 is fixedly installed at one end of the fixed support 104. The output end of the first motor 109 is fixedly connected to one end of the bidirectional screw 107. A second motor 211 is fixedly installed on one side of the second bracket 203. The output end of the second motor 211 is fixedly connected to the shaft of the worm gear 206. The pressure plate 201, the first bracket 202 and the second bracket 203 are all fixedly installed on the top of the support base 101. The gear shaft 209 is arranged between a set of sliding clamps 106.

[0025] The overall effect of Embodiment 2 is that by inserting the gear shaft 209 into the inside of the pressure plate 201, the bearing body 210 is pressed tightly against the side of the pressure plate 201 away from the fixed support 104. The first motor 109 is then started, driving the bidirectional screw 107 to rotate. This causes the sliding clamps 106, whose outer wall is threadedly connected, to slide inside the second slide groove 105, moving closer to each other and approaching the outer wall of the gear shaft 209, facilitating the fixation of the shaft. Rubber pads 10 are fixedly installed on opposite sides of both sliding clamps 106. 8. While increasing the friction of the contact surface, reduce the damage to the shaft caused by the hard contact of the sliding clamp 106 with the gear shaft 209; after the gear shaft 209 is fixed, start the second motor 211, and use the second motor 211 to drive the worm wheel 206 to mesh with the worm 207, so that the worm 207 extends from one end of the fixed sleeve 204, and drives the push rod 208 installed at one end of the worm 207 to contact the gear shaft 209. The continuous advancement of the worm 207 provides driving force to push the gear shaft 209 away from the inside of the bearing body 210.

[0026] Working principle: When in use, the gear shaft 209 is inserted into the pressure plate 201, so that the bearing body 210 is in close contact with the side of the pressure plate 201 away from the fixed support 104. The first motor 109 is started, and the first motor 109 drives the bidirectional screw 107 to rotate, so that the sliding clamps 106 connected to the outer wall of the screw slide inside the second groove 105, and move closer to each other, close to the outer wall of the gear shaft 209, so as to fix the shaft. Rubber pads 108 are fixedly installed on the opposite side of the two sliding clamps 106, which increases the friction of the contact surface and reduces the damage to the shaft caused by the hard contact of the sliding clamps 106 with the gear shaft 209.

[0027] After the gear shaft rod 209 is fixed, the second motor 211 is started. The second motor 211 drives the worm wheel 206 to mesh with the worm 207, so that the worm 207 extends from one end of the fixed sleeve 204. The push rod 208 installed at one end of the worm 207 contacts the gear shaft rod 209. The continuous pushing of the worm 207 provides driving force to push the gear shaft rod 209 away from the inside of the bearing body 210. As the gear shaft rod 209 gradually separates from the bearing body 210, the slider 103 also slides inside the first slide groove 102 until the shaft rod is completely separated.

[0028] The wiring diagrams of the first motor 109 and the second motor 211 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the first motor 109 and the second motor 211 will not be explained in detail.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tool for disassembling the gear shaft bearing of a wind turbine gearbox, characterized in that, include: A fixing mechanism (1) and a propulsion mechanism (2), wherein the propulsion mechanism (2) is disposed on top of the fixing mechanism (1); The propulsion mechanism (2) includes a pressure plate (201), a first bracket (202) and a second bracket (203). A fixed sleeve (204) is fixedly installed on the top of the first bracket (202). The inner wall of the fixed sleeve (204) is provided with a wear-resistant coating (205). A worm gear (206) is rotatably installed inside the second bracket (203). A worm (207) is inserted inside the fixed sleeve (204). The worm gear (206) meshes with the worm (207). A push rod (208) is fixedly installed at one end of the worm (207). A gear shaft rod (209) is inserted inside the pressure plate (201). A bearing body (210) is interference-fitted on the outer wall of the gear shaft rod (209). The push rod (208) is located at one end of the gear shaft rod (209).

2. The wind turbine gearbox gear shaft bearing disassembly tool according to claim 1, characterized in that: The fixing mechanism (1) includes a support base (101), and a first groove (102) is provided on the top of the support base (101). A slider (103) is slidably connected inside the first groove (102).

3. The wind turbine gearbox gear shaft bearing disassembly tool according to claim 2, characterized in that: A fixed support (104) is fixedly installed on the top of the slider (103). A set of second slide grooves (105) are opened inside the fixed support (104). A sliding clamp (106) is slidably connected inside the set of second slide grooves (105).

4. The wind turbine gearbox gear shaft bearing disassembly tool according to claim 3, characterized in that: The fixed support (104) is equipped with a bidirectional screw (107) which passes through a set of sliding clamps (106).

5. A wind turbine gearbox gear shaft bearing disassembly tool according to claim 4, characterized in that: Rubber pads (108) are fixedly installed on opposite sides of the set of sliding clamps (106), and a first motor (109) is fixedly installed at one end of the fixed support (104). The output end of the first motor (109) is fixedly connected to one end of the bidirectional screw (107).

6. The wind turbine gearbox gear shaft bearing disassembly tool according to claim 1, characterized in that: A second motor (211) is fixedly installed on one side of the second bracket (203), and the output end of the second motor (211) is fixedly connected to the shaft of the worm gear (206).

7. A wind turbine gearbox gear shaft bearing disassembly tool according to claim 3, characterized in that: The pressure plate (201), the first bracket (202) and the second bracket (203) are all fixedly installed on the top of the support base (101), and the gear shaft (209) is arranged between a set of sliding clamps (106).

Images