A wind power gear box main shaft inner ring stretcher power-assisted protection tool

Abstract

This utility model discloses an auxiliary protective fixture for the inner ring tensioner of a wind turbine gearbox main shaft, relating to the field of wind turbine gearbox installation technology. It includes a support assembly and a lifting assembly consisting of an L-shaped frame, casters, and a foot brake. The L-shaped frame is connected to a tool lock protective assembly via the lifting assembly. The tool lock protective assembly provides installation limits for two tensioners, and the lifting assembly and tool lock protective assembly work together to adjust the height of the tensioners and the relative position of the two tensioners. This utility model achieves convenient fixing of the tensioners by setting the tool lock protective assembly. Through its cooperation with the lifting assembly, the first linear slide, and the second linear slide, the position of the tensioners can be easily adjusted, and the tensioners can be easily pushed into the gearbox, making it well-suited for working environments with limited space in the gearbox.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine gearbox installation technology, specifically a wind turbine gearbox main shaft inner ring tensioner auxiliary protective tooling. Background Technology

[0002] The wind turbine gearbox is one of the core components in the wind power generation transmission chain, used for power transmission between the main shaft and the generator.

[0003] A bolt tensioner is short for a hydraulic bolt tensioner or a hydraulic tensioner. It uses a hydraulic booster pump (ultra-high pressure hydraulic pump) to provide a hydraulic source. The tension is determined based on the tensile strength, yield coefficient, and elongation of the material. The tension generated by the ultra-high pressure oil pump causes the bolt to be stretched within its elastic deformation zone, resulting in slight deformation of the bolt diameter, which makes the nut easier to loosen. In addition, it can also be used as a device to apply axial force to hydraulic interference connections for top pressure installation. Bolt tensioners are one of the commonly used devices in the installation of wind turbine gearboxes. In actual operation, the spindle is located inside the gearbox, and the space inside the gearbox is small, making it inconvenient for personnel to operate. The tensioner is large in shape and heavy, which further increases the workload for manual operation. Utility Model Content

[0004] The purpose of this utility model is to provide a protective tooling for the inner ring tensioner of the main shaft of a wind turbine gearbox in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine gearbox main shaft inner ring tensioner auxiliary protective fixture, comprising a support assembly consisting of an L-shaped frame, casters, and foot brakes. Four casters and four foot brakes are provided, arranged in a matrix and fixed to the bottom of the L-shaped frame. The foot brakes and casters are arranged in a straight line. A lifting assembly is provided on the inner side of the vertical portion of the L-shaped frame, and a tool locking protective assembly is connected to the L-shaped frame through the lifting assembly. The tool lock protection assembly is used to provide installation limits for the two tensioners, and the lifting assembly and the tool lock protection assembly work together to adjust the height of the tensioners and the relative position of the two tensioners.

[0006] As a further embodiment of this utility model: the lifting assembly includes a fixed plate, a guide rod, a lifting plate, a connecting frame, a geared motor, a ball screw, an extension rod, and a magnetic powder damper; Two fixing plates are provided, and the two fixing plates are vertically distributed and fixed to the inner side of the vertical part of the L-shaped frame; Four guide rods are provided, and the four guide rods are fixed in a matrix distribution between the two fixed plates; There are two lifting plates, which are vertically slidably sleeved on the outside of the four guide rods. The connecting frame is fixed between the two lifting plates and extends to one end of the outer side of the L-shaped frame. The geared motor is fixedly installed on the top of the vertical part of the L-shaped frame. The ball screw is fixed to the output end of the geared motor and passes through the upper fixed plate and two lifting plates and is rotatably connected to the lower fixed plate. The upper lifting plate is equipped with a nut that matches the ball screw. The upper fixed plate and the lower lifting plate have through holes with a diameter larger than the outer diameter of the ball screw. The extension rod is fixed to one end of the connecting frame, the magnetic powder damper is fixed to one end of the extension rod, and the tool lock protection assembly is installed on one end of the output shaft of the magnetic powder damper. The lifting plate, connecting frame, extension rod, and magnetic powder damper are moved up and down by a geared motor to adjust the height of the tool lock protection assembly. The magnetic powder damper is used to adjust the rotation of the tool lock protection assembly.

[0007] As a further embodiment of this utility model: the tool lock protective assembly includes a linear connecting plate, a first linear slide, an L-shaped connecting plate, a second linear slide, and a lock sleeve; The linear connecting plate is fixed to one end of the output shaft of the magnetic powder damper, the track of the first linear slide is installed on the end of the linear connecting plate away from the magnetic powder damper, and the L-shaped connecting plate is installed and fixed on the slide of the first linear slide. The slide of the second linear slide is fixed to one side of the L-shaped connecting plate, the track of the second linear slide is fixed to the outside of the locking sleeve, and the tensioner is installed on the inside of the locking sleeve.

[0008] As a further embodiment of this utility model: two sets of the first linear slide are symmetrically arranged on the linear connecting plate, and two sets of the L-shaped connecting plate, the second linear slide, and the locking sleeve are symmetrically arranged.

[0009] As a further improvement of this utility model: the locking sleeve is composed of two semi-circular arc structures, the bottom of the two semi-circular arc structures are movably connected by hinges, and the top of the two semi-circular arc structures are detachably connected by buckles.

[0010] Compared with the prior art, the beneficial effects of this utility model are: The tensioner can be easily fixed by setting up a tool locking protection component. Through the cooperation of the lifting component, the first linear slide, and the second linear slide, the position of the tensioner can be easily adjusted, and the tensioner can be easily pushed into the gearbox, which can well adapt to the working environment where the gearbox space is small. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is another perspective view of the present invention; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a structural distribution diagram of the ball screw, fixed plate, and lifting plate of this utility model.

[0012] In the diagram: 1. Bracket assembly; 101. L-shaped frame; 102. Casters; 103. Foot brake; 2. Lifting assembly; 201. Fixing plate; 202. Guide rod; 203. Lifting plate; 204. Connecting frame; 205. Gear motor; 206. Ball screw; 207. Extension rod; 208. Magnetic powder damper; 3. Tool lock protection assembly; 301. Linear connecting plate; 302. First linear slide; 303. L-shaped connecting plate; 304. Second linear slide; 305. Lock sleeve; 306. Buckle; 4. Tensioner. Detailed Implementation

[0013] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4 In this embodiment of the utility model, a wind turbine gearbox main shaft inner ring tensioner auxiliary protective tooling includes a support assembly 1 composed of an L-shaped frame 101, casters 102, and foot brakes 103. Four casters 102 and four foot brakes 103 are provided. The four casters 102 and four foot brakes 103 are fixed to the bottom of the L-shaped frame 101 in a matrix distribution. The foot brakes 103 and the casters 102 are arranged in a straight line. A lifting assembly 2 is provided on the inner side of the vertical part of the L-shaped frame 101. The L-shaped frame 101 is connected to a tool locking protective assembly 3 through the lifting assembly 2. The tool lock protection assembly 3 is used to provide installation limits for the two tensioners 4, and the lifting assembly 2 and the tool lock protection assembly 3 work together to adjust the height of the tensioners 4 and the relative position of the two tensioners 4. The lifting assembly 2 includes a fixed plate 201, a guide rod 202, a lifting plate 203, a connecting frame 204, a geared motor 205, a ball screw 206, an extension rod 207, and a magnetic powder damper 208. Two fixing plates 201 are provided, and the two fixing plates 201 are vertically distributed and fixed to the inner side of the vertical part of the L-shaped frame 101; Four guide rods 202 are provided, and the four guide rods 202 are fixed in a matrix distribution between the two fixed plates 201; There are two lifting plates 203. The two lifting plates 203 are slidably sleeved on the outside of the four guide rods 202 in a vertical direction. The connecting frame 204 is fixed between the two lifting plates 203 and extends to one end of the outer side of the L-shaped frame 101. The geared motor 205 is fixedly installed on the top of the vertical part of the L-shaped frame 101. The ball screw 206 is fixed to the output end of the geared motor 205 and passes through the upper fixed plate 201 and the two lifting plates 203 and is rotatably connected to the lower fixed plate 201. The upper lifting plate 203 is equipped with a nut that matches the ball screw 206. The upper fixed plate 201 and the lower lifting plate 203 are provided with through holes with a diameter larger than the outer diameter of the ball screw 206. The extension rod 207 is fixed to one end of the connecting frame 204, the magnetic powder damper 208 is fixed to one end of the extension rod 207, and the tool lock protection assembly 3 is installed on one end of the output shaft of the magnetic powder damper 208. The lifting plate 203, connecting frame 204, extension rod 207, and magnetic powder damper 208 are driven to move up and down as a whole by the operation of the geared motor 205, which is used to realize the height adjustment of the tool lock protection component 3, and the operation of the magnetic powder damper 208 is used to realize the rotation adjustment of the tool lock protection component 3. The tool lock protection assembly 3 includes a linear connecting plate 301, a first linear slide 302, an L-shaped connecting plate 303, a second linear slide 304, and a lock sleeve 305; The linear connecting plate 301 is fixed to one end of the output shaft of the magnetic powder damper 208, the track of the first linear slide 302 is installed on the end of the linear connecting plate 301 away from the magnetic powder damper 208, and the L-shaped connecting plate 303 is installed and fixed on the slide of the first linear slide 302. The slide of the second linear slide 304 is fixed on one side of the L-shaped connecting plate 303, the track of the second linear slide 304 is fixed on the outside of the locking sleeve 305, and the tensioner 4 is installed on the inside of the locking sleeve 305. Two sets of the first linear slide 302 are symmetrically arranged on the linear connecting plate 301, and two sets of the L-shaped connecting plate 303, the second linear slide 304, and the locking sleeve 305 are symmetrically arranged.

[0015] In this embodiment: the universal wheel 102 enables convenient movement of the device. After the device is pushed to the working position, the self-locking of the universal wheel 102 and the foot brake 103 can be used to fix the device. Then, the tool lock protection component is raised to the appropriate height by lifting component 2: By starting the geared motor 205, the geared motor 205 drives the ball screw 206 to rotate. The rotating ball screw 206, with the cooperation of the nut, drives the lifting plate 203, the connecting frame 204, the extension rod 207, the magnetic powder damper 208, and the tool lock protection assembly 3 to move up and down as a whole. Next, the tensioner 4 is installed inside the locking sleeve 305. Then, the operation of the first linear slide 302 in conjunction with the magnetic powder damper 208 is adjusted to move the tensioner 4 to the appropriate position. After that, the second linear slide 304 is adjusted to push the tensioner 4 into the gearbox. (It should be noted that both the first linear slide 302 and the second linear slide 304 are equipped with a manual locking structure, which can lock the first linear slide 302 and the second linear slide 304 after adjustment. This structure is the conventional structure of existing slides.) With the cooperation of the above components, the tensioner 4 can be easily pushed into the gearbox, which can adapt well to the working environment where the gearbox space is small, and effectively improve the gearbox installation efficiency. It should also be noted that the foot brake 103 and the tensioner 4 are mature products on the market, so their operating principles will not be elaborated here.

[0016] Please refer to this carefully. Figures 1-3 The locking sleeve 305 consists of two semi-circular arc structures. The bottom of the two semi-circular arc structures are connected by a hinge, and the top of the two semi-circular arc structures are detachably connected by a buckle 306.

[0017] In this embodiment, the tensioner 4 can be easily disassembled and assembled through the rotatable opening structure of the locking sleeve 305. It should also be noted that the top of the semi-circular arc structure of the latch sleeve 305 has a groove for the protrusion of the tensioner 4 to pass through, and the buckle 306 is a mature product on the market, so the operation of the buckle 306 will not be described in detail here.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective fixture for the inner ring tensioner of a wind turbine gearbox main shaft, comprising a support assembly (1) consisting of an L-shaped frame (101), casters (102), and foot brakes (103), wherein four casters (102) and four foot brakes (103) are provided, the four casters (102) and four foot brakes (103) are fixed to the bottom of the L-shaped frame (101) in a matrix arrangement, and the foot brakes (103) and the casters (102) are arranged in a straight line, characterized in that, The L-shaped frame (101) is provided with a lifting component (2) on the inner side of the vertical part, and the L-shaped frame (101) is connected to a tool gripping lock protection component (3) through the lifting component (2). The tool lock protection assembly (3) is used to provide installation limits for the two tensioners (4), and the lifting assembly (2) and the tool lock protection assembly (3) cooperate to adjust the height of the tensioners (4) and the relative position of the two tensioners (4).

2. A wind turbine gearbox main shaft inner ring stretcher booster protection tool according to claim 1, characterized in that, The lifting assembly (2) includes a fixed plate (201), a guide rod (202), a lifting plate (203), a connecting frame (204), a geared motor (205), a ball screw (206), an extension rod (207), and a magnetic powder damper (208). Two fixing plates (201) are provided, and the two fixing plates (201) are vertically distributed and fixed to the inner side of the vertical part of the L-shaped frame (101); Four guide rods (202) are provided, and the four guide rods (202) are fixed in the middle of the two fixed plates (201) in a matrix distribution; There are two lifting plates (203), and the two lifting plates (203) are slidably sleeved on the outside of the four guide rods (202) in a vertical direction. The connecting frame (204) is fixed between the two lifting plates (203) and extends to one end of the outer side of the L-shaped frame (101). The geared motor (205) is fixedly installed on the top of the vertical part of the L-shaped frame (101). The ball screw (206) is fixed to the output end of the geared motor (205) and passes through the upper fixed plate (201), the two lifting plates (203) and is rotatably connected to the lower fixed plate (201). The upper lifting plate (203) is equipped with a nut that matches the ball screw (206). The upper fixed plate (201) and the lower lifting plate (203) are provided with through holes with a diameter larger than the outer diameter of the ball screw (206). The extension rod (207) is fixed to one end of the connecting frame (204), the magnetic powder damper (208) is fixed to one end of the extension rod (207), and the tool lock protection assembly (3) is installed on one end of the output shaft of the magnetic powder damper (208). The lifting plate (203), connecting frame (204), extension rod (207), and magnetic powder damper (208) are driven to move up and down as a whole by the operation of the geared motor (205) to realize the height adjustment of the tool lock protection assembly (3). The operation of the magnetic powder damper (208) is used to realize the rotation adjustment of the tool lock protection assembly (3).

3. A wind turbine gearbox main shaft inner ring stretcher booster protection tool according to claim 2, characterized in that, The tool lock protection assembly (3) includes a linear connecting plate (301), a first linear slide (302), an L-shaped connecting plate (303), a second linear slide (304), and a lock sleeve (305). The linear connecting plate (301) is fixed to one end of the output shaft of the magnetic powder damper (208), the track of the first linear slide (302) is installed at the end of the linear connecting plate (301) away from the magnetic powder damper (208), and the L-shaped connecting plate (303) is installed and fixed on the slide of the first linear slide (302). The slide of the second linear slide (304) is fixed on one side of the L-shaped connecting plate (303), the track of the second linear slide (304) is fixed on the outside of the locking sleeve (305), and the tensioner (4) is installed on the inside of the locking sleeve (305).

4. A wind turbine gearbox main shaft inner ring stretcher booster protection tool according to claim 3, characterized in that, Two sets of the first linear slide (302) are symmetrically arranged on the linear connecting plate (301), and two sets of the L-shaped connecting plate (303), the second linear slide (304), and the locking sleeve (305) are symmetrically arranged.

5. A wind turbine gearbox main shaft inner ring stretcher booster protection tool according to claim 3, characterized in that, The locking sleeve (305) consists of two semi-circular arc structures. The bottom of the two semi-circular arc structures are connected by hinges, and the top of the two semi-circular arc structures are detachably connected by buckles (306).

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