Turning device

Abstract

The present invention discloses a cranking device for cranking a bearing seat, comprising: a supporting base, a wheel frame, a driving wheel and a power source, the supporting base is fixedly connected to the end face of the main shaft by bolts, a plurality of pairs of lifting ears are fixed on the end face of the supporting base, the plurality of pairs of lifting ears are arranged at equal intervals along the circumference of the supporting base, each pair of lifting ears corresponds to a wheel frame, the number of pairs of lifting ears is equal to the number of wheel frames, one end of each wheel frame is rotatably connected to the lifting ear corresponding thereto, a fixing frame is installed at the other end of the wheel frame, the driving wheel is installed on the fixing frame, and the driving wheel is arranged on the end face of the bearing seat, each driving wheel is connected to the power source, and the power source provides power for the driving wheel. The cranking device of the present invention has a simple structure, is easy to operate, saves labor and time costs, effectively improves the assembly efficiency of the fan, and fundamentally reduces the time for installing the cranking device.

Description

Technical Field

[0001] The invention belongs to the technical field of fans, and more specifically relates to a winch device. Background Art

[0002] As the onshore wind power industry enters the era of grid parity, more and more models are adopting a compact main drive structure with two single-row tapered roller bearings and an integrated bearing seat under the premise of reducing the cost of wind power. When assembling this structure, the inner ring of the front bearing must be assembled to the main shaft position first, and the outer rings of the front and rear bearings must be assembled to the bearing seat in advance. Then the bearing seat must be lifted and put on the main shaft. When assembling the main drive of this transmission chain structure, in order to detect whether the bearings are assembled in place, it is usually necessary to turn the assembled bearing seat after the inner ring of the front bearing and the inner ring of the rear bearing are assembled. If the bearing seat is not turned in place, it will affect the assembly quality of the bearing, and then affect the operating quality of the wind turbine. The bearing seat is heavy, and it is time-consuming and labor-intensive to turn it manually; during mass production, it will seriously affect the assembly progress of the wind turbine. Summary of the invention

[0003] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a winching device for winching a bearing seat, the winching device comprising: a supporting base, a wheel frame, a driving wheel and a power source, the supporting base is fixedly connected to the end face of the main shaft by bolts, a plurality of pairs of lifting ears are fixed on the end face of the supporting base, the plurality of pairs of lifting ears are arranged at equal intervals along the circumference of the supporting base, each pair of lifting ears corresponds to one wheel frame, the number of pairs of lifting ears is equal to the number of wheel frames, one end of each wheel frame is rotatably connected to the lifting ear corresponding thereto, a fixing frame is installed on the other end of the wheel frame, the driving wheel is installed on the fixing frame, and the driving wheel is arranged on the end face of the bearing seat, each of the driving wheels is connected to the power source, and the power source provides power for the driving wheels.

[0004] Preferably, in the above-mentioned turning device, each of the wheel frames has a straight section, an inclined section and an arc section, one end of the straight section is connected to one end of the arc section, the other end of the arc section is equipped with the fixed frame, one end of the inclined section is connected to the other end of the straight section, and the other end of the inclined section is connected to the lifting ear.

[0005] Preferably, in the above-mentioned winching device, the winching device also includes a plurality of hydraulic cylinders, the number of the hydraulic cylinders is equal to the number of the wheel frames, one end of each of the hydraulic cylinders is connected to a first mounting seat fixed on a supporting base under the wheel frame, and the other end of the hydraulic cylinder is connected to a second mounting seat fixed on the wheel frame.

[0006] Preferably, in the above-mentioned turning device, the cylinder body of each hydraulic cylinder is connected to a first mounting seat on a supporting base below the wheel frame, and the piston rod end of the hydraulic cylinder is connected to a second mounting seat on the wheel frame.

[0007] Preferably, in the above-mentioned turning device, the number of the lifting ears is 3 pairs, the number of the wheel frames is 3, and the number of the hydraulic cylinders is 3.

[0008] Preferably, in the above-mentioned turning device, the support base is formed by welding high-quality steel plates.

[0009] Preferably, in the above-mentioned turning device, the power source is an electric motor.

[0010] Preferably, in the above-mentioned turning device, a lifting ring is installed on each of the wheel frames.

[0011] The winch device of the present invention has a simple structure, is easy to operate, saves labor and time costs, and effectively improves the efficiency of fan assembly. At the same time, by arranging a hydraulic cylinder to lift the wheel frame, the time for installing the winch device is fundamentally reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is an assembly schematic diagram of the turning device of the present invention, wherein the wheel frame is in a dropped state.

[0014] Figure 2 It is a schematic structural diagram of the turning device of the present invention, wherein the wheel frame is in a jacked-up state.

[0015] Explanation of the reference numerals: 10 - supporting base, 10.1 - lifting ear, 20 - wheel frame, 20.1 - lifting ring, 30 - driving wheel, 40 - hydraulic cylinder. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] like Figure 1 and Figure 2 As shown, the winching device of the present invention is installed on the end face of the main shaft and is used to winch the bearing seat, comprising: a support base 10, a wheel frame 20, a driving wheel 30 and a power source. The support base 10 is fixedly connected to the end face of the main shaft by bolts, and a plurality of pairs of lifting ears 10.1 are fixed on the end face of the support base 10. The plurality of pairs of lifting ears 10.1 are arranged at equal intervals along the circumference of the support base 10, each pair of lifting ears 10.1 corresponds to a wheel frame 20, and the number of pairs of lifting ears 10.1 is equal to the number of wheel frames 20. One end of each wheel frame 20 is rotatably connected to the lifting ear 10.1 corresponding thereto, and a fixing frame is installed at the other end of the wheel frame 20, and the driving wheel 30 is installed on the fixing frame, and the driving wheel 30 is arranged on the end face of the bearing seat, and each driving wheel 30 is connected to a power source, and the power source provides power for the driving wheel 30.

[0018] As a specific embodiment, in the turning device of the present invention, the wheel frame 20 has a straight section, an inclined section and an arc section, one end of the straight section is connected to one end of the arc section, a fixed frame is installed on the other end of the arc section, one end of the inclined section is connected to the other end of the straight section, and the other end of the inclined section is connected to the lifting ear 10.1.

[0019] As a specific embodiment, the turning device of the present invention further includes a plurality of hydraulic cylinders 40, the number of which is equal to the number of wheel frames 20, one end of each hydraulic cylinder 40 is connected to a first mounting seat fixed on a support base 10 below the wheel frame 20, and the other end of the hydraulic cylinder 40 is connected to a second mounting seat fixed on the wheel frame 20, specifically, the cylinder body of the hydraulic cylinder 40 is fixed to the first mounting seat on the support base 20 below the wheel frame 20, and the piston rod end of the hydraulic cylinder 40 is connected to the second mounting seat on the wheel frame 20. Thus, after the inner ring of the front bearing is assembled to the main shaft, the outer rings of the front and rear bearings are assembled to the bearing seat, the bearing seat is mounted to the main shaft, and after the turning device is installed, the bearing seat is turned for the first time. After the first turning is completed, the turning device does not need to be disassembled, the hydraulic cylinder 40 is extended, the wheel frame 20 is lifted, and then the inner ring of the rear bearing is installed. After the installation is completed, the hydraulic cylinder 40 is retracted, the wheel frame 20 falls, and the bearing seat is turned for the second time.

[0020] Preferably, in the turning device of the present invention, the number of the lifting eyes 10.1 is 3 pairs, that is, the number of the wheel frames 20 is 3, and the number of the hydraulic cylinders 40 is 3.

[0021] Preferably, in the turning device of the present invention, a lifting ring 20.1 is installed on the wheel frame 20. On the one hand, after the hydraulic cylinder 40 is extended and the wheel frame 20 is lifted up, the lifting rings 20.1 on the plurality of wheel frames 20 are connected and fixed to prevent the wheel frame 20 from slipping. On the other hand, after the second turning is completed, it is convenient for the lifting mechanism to lift the turning device.

[0022] Preferably, in the turning device of the present invention, the supporting base 10 is formed by welding high-quality steel plates.

[0023] Preferably, in the barring device of the present invention, the power source is an electric motor.

[0024] The turning device of the present invention provides power to the driving wheel 30 through a power source, and the driving wheel 30 rotates and generates friction with the end surface of the bearing seat, thereby driving the bearing seat to rotate.

[0025] When the turning device of the present invention is used to turn the bearing seat for the first time, the inner ring of the front bearing is first assembled to the main shaft, and then the outer rings of the front and rear bearings are assembled to the bearing seat, and the bearing seat is installed to the main shaft. First, multiple pairs of lifting ears 10.1 and multiple first mounting seats are fixed to the end face of the support base 10, and the support base 10 is installed to the end face of the main shaft by bolts. The inclined sections of multiple wheel frames 20 are rotatably connected to the multiple pairs of lifting ears 10.1 in sequence, and each wheel frame 20 corresponds to a pair of lifting ears 10.1. A fixing frame is installed on the arc segment of each wheel frame 20, and the cylinder bodies of multiple hydraulic cylinders 40 are respectively connected to the first mounting seat on the support base 10 in sequence, and the piston end of each hydraulic cylinder 10 is connected to the second mounting seat of the wheel frame 20. Multiple driving wheels 30 are respectively installed on the fixing frame in sequence, and the driving wheels 30 Fitting the end face of the bearing seat, each driving wheel 30 is also connected to a power source to provide power for the driving wheel 30. When the power source is turned on, the driving wheel 30 rotates and generates friction with the end face of the bearing seat, thereby driving the bearing seat to rotate for the first turning. After the first turning of the bearing seat is completed, the power source is turned off, and the hydraulic cylinder 40 is extended to lift the wheel frame 20, driving the driving wheel 30 to leave the end face of the bearing seat, and the lifting rings 20.1 on each wheel frame 20 are connected and fixed to each other, and then the rear bearing inner ring is installed. After the installation is completed, the lifting rings 20.1 on each wheel frame 20 are separated from each other, the hydraulic cylinder 40 is contracted, the wheel frame 20 falls, and the driving wheel 30 is placed on the end face of the bearing seat. When the power source is turned on, the driving wheel 30 rotates, thereby driving the bearing seat to rotate for the second turning.

[0026] Therefore, the winch device of the present invention has a simple structure, is easy to operate, saves labor and time costs, and effectively improves the fan assembly efficiency. At the same time, the wheel frame is lifted by setting a hydraulic cylinder, which reduces the time for installing the winch device.

[0027] It should be noted that, in this article, the term "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such article or device. At the same time, the term "connection" and the like used in this article should be understood in a broad sense, and can be a fixed connection or a detachable connection, and can be directly connected or indirectly connected through an intermediate component. In addition, the "front", "back", "left", "right", "up", "down", "inside", "outside", etc. in this article are all referenced to the placement state shown in the accompanying drawings.

[0028] It should also be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the present invention.

Claims

1. A turning device for turning a bearing seat, characterized in that: The winch device includes: a supporting base, a wheel frame, a driving wheel, a power source, and multiple hydraulic cylinders, the supporting base is fixedly connected to the end face of the main shaft by bolts, and multiple pairs of lifting ears are fixed on the end face of the supporting base, and the multiple pairs of lifting ears are arranged at equal intervals along the circumference of the supporting base. Each pair of lifting ears corresponds to one wheel frame, and the number of pairs of lifting ears is equal to the number of wheel frames. One end of each wheel frame is rotatably connected to the lifting ear corresponding to it, and the other end of the wheel frame is equipped with a fixing frame, the driving wheel is installed on the fixing frame, and the driving wheel is arranged on the end face of the bearing seat, each driving wheel is connected to the power source, and the power source provides power for the driving wheel. The number of the hydraulic cylinders is equal to the number of the wheel frames, and one end of each hydraulic cylinder is connected to a first mounting seat fixed on the supporting base below the wheel frame, and the other end of the hydraulic cylinder is connected to a second mounting seat fixed on the wheel frame.

2. The barring device according to claim 1, characterized in that: Each wheel frame has a straight section, an inclined section and an arc section, one end of the straight section is connected to one end of the arc section, the other end of the arc section is installed with the fixing frame, one end of the inclined section is connected to the other end of the straight section, and the other end of the inclined section is connected to the lifting ear.

3. The turning device according to claim 1, characterized in that: The cylinder body of each hydraulic cylinder is connected to a first mounting seat on a supporting base below the wheel frame, and the piston rod end of the hydraulic cylinder is connected to a second mounting seat on the wheel frame.

4. The barring device according to claim 1, characterized in that: The number of the pairs of lifting eyes is 3, the number of the wheel frames is 3, and the number of the hydraulic cylinders is 3.

5. The barring device according to claim 1, characterized in that: The support base is formed by welding high-quality steel plates.

6. The barring device according to claim 1, characterized in that: The power source is a motor.

7. The barring device according to claim 1, characterized in that: A lifting ring is installed on each wheel frame.

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