Stator bar pulling-out mechanism and maintenance device of vertical hydro-generator

Abstract

The utility model provides a stator bar pulling-out mechanism and a maintenance device of a vertical hydro-generator, and the pulling-out mechanism comprises a main body; the magnetic attraction assembly is arranged on the main body, and the magnetic attraction assembly is used for being magnetically attracted to an iron core of the stator; the winch is rotationally arranged on the main body; one end of the traction belt is wound on the winch, and the end, away from the winch, of the traction belt is used for being connected with a coil bar of the stator; and the driving assembly is in transmission connection with the winch, and the driving assembly is used for driving the winch to rotate, so that the traction belt pulls out the winding bar from the groove of the iron core. According to the stator bar pulling-out mechanism and the overhauling device of the vertical hydro-generator, operation is simpler, the overhauling efficiency is effectively improved, safety is higher, and the risks of personnel falling and equipment damage are effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of generator maintenance, and in particular to a stator wire rod extraction mechanism and a maintenance device for a vertical hydro-turbine generator. Background Art

[0002] When inspecting and repairing the generators of giant equipment such as vertical water turbines, for example, insulation treatment of the stator core slots and replacement of local stator wire rods, the wire rods need to be pulled out of the core slots. The current method is to use the lever principle to manually pull the wire rods out of the core slots. This method is not only extremely inconvenient to operate and has low maintenance efficiency, but also has poor safety, which can easily cause personnel falls and equipment damage, and is difficult to meet construction requirements. Summary of the invention

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, the purpose of the present disclosure is to provide a stator wire rod extraction mechanism and a maintenance device for a vertical hydro-generator.

[0005] To achieve the above-mentioned purpose, the first aspect of the present disclosure provides a stator wire rod pulling out mechanism, comprising: a main body; a magnetic attraction component, which is arranged on the main body and is used to magnetically adsorb on the iron core of the stator; a capstan, which is rotatably arranged on the main body; a traction belt, one end of which is wound around the capstan, and the end of the traction belt away from the capstan is used to connect the wire rod of the stator; a driving component, which is transmission-connected to the capstan, and the driving component is used to drive the capstan to rotate so that the traction belt pulls the wire rod out of the slot of the iron core.

[0006] Optionally, the driving assembly includes: a handle, which is rotatably arranged on the main body; a reducer, which is arranged on the main body, and the power input end of the reducer is transmission-connected to the handle, and the power output end of the reducer is transmission-connected to the winch.

[0007] Optionally, the reducer includes: a first gear, which is coaxially connected to the handle; and a second gear, which is coaxially connected to the capstan; wherein the first gear and the second gear are meshed, and the diameter of the first gear is smaller than the diameter of the second gear.

[0008] Optionally, the driving assembly further comprises: a ratchet stopper, wherein the ratchet stopper is disposed on the main body and is transmission-connected to the handle.

[0009] Optionally, the magnetic attraction component includes: at least one magnetic seat, which is arranged on the main body and is used for magnetically adsorbing on the iron core.

[0010] Optionally, the magnetic attraction assembly further includes: at least one supporting foot, the supporting foot being threadedly disposed on the main body, and the supporting foot being used to abut against the iron core.

[0011] Optionally, the pulling mechanism further includes: a hook, which is arranged at the end of the traction belt away from the winch; a pull belt, one end of which is used to be wound around the wire rod, and the end of the pull belt away from the wire rod is hooked on the hook.

[0012] Optionally, the main body includes: a first support plate, a second support plate and a third support plate, the first support plate being arranged between one end of the second support plate and one end of the third support plate; wherein the capstan rotation is arranged between the second support plate and the third support plate, the drive assembly is arranged on a side of the second support plate away from the third support plate, and the magnetic attraction assembly is arranged on an end of the second support plate and / or the third support plate away from the first support plate.

[0013] Optionally, the main body also includes: a first reinforcing bolt, which is arranged between an end of the second support plate away from the first support plate and an end of the third support plate away from the first support plate; a second reinforcing bolt, which is arranged between an end of the second support plate away from the first support plate and an end of the third support plate away from the first support plate, and the second reinforcing bolt and the first reinforcing bolt are arranged at intervals.

[0014] A second aspect of the present disclosure provides a maintenance device for a vertical hydro-turbine generator, comprising: at least one stator wire rod extraction mechanism as provided in the first aspect of the present disclosure.

[0015] The technical solution provided by the present disclosure may have the following beneficial effects:

[0016] Driven by the drive assembly, the winch can be used to wind the traction belt to pull the wire rod out of the core slot, so as to facilitate the maintenance of the stator core or wire rod. In addition, the overall coordination of the magnetic suction assembly, winch, traction belt and drive assembly realizes the stable mechanical force, which is not only simpler to operate, thereby effectively improving the maintenance efficiency, but also safer, effectively reducing the risk of personnel falling and equipment damage. Therefore, the construction requirements of high efficiency and high safety are met.

[0017] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 is a structural schematic diagram of a stator wire bar extraction mechanism proposed in an embodiment of the present disclosure;

[0020] As shown in the figure: 1. main body, 11. first support plate, 12. second support plate, 13. third support plate, 14. first reinforcement bolt, 15. second reinforcement bolt;

[0021] 2. Magnetic suction assembly, 21. Magnetic seat, 22. Support foot;

[0022] 3. Winch, 4. Traction belt;

[0023] 5. driving assembly, 51. handle, 52. first gear, 53. second gear;

[0024] 6. Hook. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and are not to be construed as limitations of the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0026] like Figure 1 As shown, the embodiment of the present disclosure proposes a stator wire rod pulling out mechanism, including: a main body 1, a magnetic attraction component 2, a capstan 3, a traction belt 4 and a driving component 5, the magnetic attraction component 2 is arranged on the main body 1, and the magnetic attraction component 2 is used to be magnetically adsorbed on the iron core of the stator, the capstan 3 is rotatably arranged on the main body 1, one end of the traction belt 4 is wound around the capstan 3, and the end of the traction belt 4 away from the capstan 3 is used to connect the stator wire rod, the driving component 5 is connected to the capstan 3 by transmission, and the driving component 5 is used to drive the capstan 3 to rotate, so that the traction belt 4 pulls the wire rod out of the slot of the iron core.

[0027] It can be understood that since the magnetic attraction component 2 is arranged on the main body 1, the main body 1 can use the magnetic attraction force of the magnetic attraction component 2 to stably adsorb on the iron core of the stator; since the capstan 3 is rotatably arranged on the main body 1, and one end of the traction belt 4 is wound around the capstan 3, the rotation of the capstan 3 can wind up the traction belt 4, and then when the traction belt 4 is connected to the stator's wire rod, it can effectively drag the wire rod; since the driving component 5 is connected to the capstan 3 in transmission, the driving component 5 can drive the capstan 3 to rotate.

[0028] Driven by the driving component 5, the wire rod can be pulled out of the slot of the core by winding the traction belt 4 by the winch 3, so as to facilitate the maintenance of the stator core or wire rod. Moreover, the overall coordination of the magnetic suction component 2, the winch 3, the traction belt 4 and the driving component 5 realizes the stable force of the machine, which is not only simpler to operate, thereby effectively improving the maintenance efficiency, but also safer, effectively reducing the risk of personnel falling and equipment damage. Therefore, the construction requirements of high efficiency and high safety are met.

[0029] It should be noted that in the relevant embodiments, the maintenance personnel manually pull out the wire rod from the slot of the iron core. The specific method is: use stick-shaped tools such as square wood and crowbars to tie the wire rod and the middle part of the stick-shaped tool together with ropes, belts, etc., one end of the stick-shaped tool is against the iron core, and the other end is impacted, pushed and pulled in the direction of the stator center axis by manpower, thereby using the lever principle to pull the wire rod out of the slot of the iron core. However, this method has many disadvantages: when the wire rod is tight, it is difficult to pull it out by manpower; when only the magnetic poles are removed without removing the rotor, there is no operating space for manual replacement of the wire rod; the maintenance personnel impact, push and pull in the direction of the stator center axis on the maintenance platform, there is a risk of falling from a height and the risk of collapse of the construction platform, and the construction safety cannot be guaranteed.

[0030] In this embodiment, the pull-out mechanism composed of the main body 1, the magnetic suction component 2, the winch 3, the traction belt 4 and the driving component 5 can achieve stable force in a small space, thereby effectively solving the drawbacks of the relevant embodiments and greatly improving the maintenance efficiency and construction safety.

[0031] The main body 1 is used to be installed on the iron core of the stator using the magnetic attraction component 2, and carries components such as the winch 3 and the drive component 5. The specific type of the main body 1 can be set according to actual needs and is not limited to this. For example, the main body 1 can be a frame structure close to a U-shape, and the U-shaped mouth of the main body 1 faces the wire rod. The main body 1 can be made of high-strength alloy to ensure the high strength of the main body 1 while reducing the weight of the mechanism to meet the needs of light and small space use. The surface of the main body 1 is finely processed to avoid damage to the stator wire rod insulation at the corners during use.

[0032] The magnetic attraction component 2 is used for magnetic attraction on the iron core of the stator. The specific type of the magnetic attraction component 2 can be set according to actual needs and is not limited to this.

[0033] The capstan 3 is used to wind the traction belt 4 under the drive of the driving assembly 5. The specific type of the capstan 3 can be set according to actual needs and is not limited thereto. For example, the capstan 3 is a disc structure, and a ring groove for accommodating the traction belt 4 is provided on its circumferential surface. The rotation center axis of the capstan 3 is perpendicular to the center axis of the stator.

[0034] The traction belt 4 is used to drag the wire rod under the winding of the winch 3 to pull the wire rod out of the slot of the iron core. The specific type of the traction belt 4 can be set according to actual needs and is not limited to this. For example, the traction belt 4 can be a belt rope.

[0035] The driving assembly 5 is used to drive the winch 3 to rotate. The specific type of the driving assembly 5 can be set according to actual needs and is not limited to this.

[0036] like Figure 1 As shown, in some embodiments, the driving assembly 5 includes: a handle 51 and a reducer, the handle 51 is rotatably set on the main body 1, the reducer is set on the main body 1, and the power input end of the reducer is transmission-connected to the handle 51, and the power output end of the reducer is transmission-connected to the winch 3.

[0037] It can be understood that since the power input end of the reducer is connected to the handle 51, and the power output end of the reducer is connected to the winch 3, the reducer can transmit the driving force of the handle 51 to the winch 3, thereby realizing the rotation of the winch 3 under the rotation of the handle 51, and then realizing the dragging and pulling out of the wire rod by the traction belt 4.

[0038] Among them, the setting of the handle 51 facilitates manual driving by maintenance personnel. At the same time, the deceleration and torque increase of the reducer can effectively increase the output of the torque to ensure the stable extraction of the 4 pairs of wire rods of the traction belt.

[0039] It should be noted that the handle 51 is used to use human power as a driving force to drive the winch 3 to rotate. The specific type of the handle 51 can be set according to actual needs and is not limited to this. For example, the handle 51 can be a structure close to a Z shape, and the gripping end of the handle 51 has a rotating sleeve.

[0040] The reducer is used to reduce speed and increase torque of the handle 51 so as to achieve a larger wire rod pulling force with less manpower. The specific type of the reducer can be set according to actual needs and is not limited to this.

[0041] like Figure 1As shown, in some embodiments, the reducer includes: a first gear 52 and a second gear 53, the first gear 52 is coaxially connected to the handle 51, and the second gear 53 is coaxially connected to the capstan 3; wherein the first gear 52 and the second gear 53 are meshed, and the diameter of the first gear 52 is smaller than the diameter of the second gear 53.

[0042] It can be understood that since the first gear 52 and the handle 51 are coaxially connected, the first gear 52 and the handle 51 can rotate synchronously; since the second gear 53 and the capstan 3 are coaxially connected, the second gear 53 and the capstan 3 can rotate synchronously; since the first gear 52 and the second gear 53 are meshed, the first gear 52 can drive the second gear 53 to rotate.

[0043] Therefore, through the cooperation of the first gear 52 and the second gear 53, the driving force of the handle 51 can be transmitted to the winch 3, so that the winch 3 can be rotated under the rotation of the handle 51, and then the traction belt 4 can be used to drag and pull out the wire rod. In addition, since the diameter of the first gear 52 is smaller than the diameter of the second gear 53, the reducer can achieve a deceleration and torque increase effect, thereby achieving a larger rotational force of the winch 3 under a smaller force applied by the handle 51, thereby ensuring the stable pulling out of the wire rod by the traction belt 4.

[0044] It should be noted that the first gear 52 and the second gear 53 are used for transmission cooperation to achieve deceleration and torque increase. The specific types of the first gear 52 and the second gear 53 can be set according to actual needs and are not limited to this. For example, the first gear 52 is sleeved on the rotating shaft of the handle 51, and the second gear 53 is sleeved on the rotating shaft of the winch 3. The central axis of the first gear 52 and the central axis of the second gear 53 are parallel.

[0045] In some embodiments, the driving assembly 5 further includes: a ratchet stopper, which is disposed on the main body 1 and is transmission-connected to the handle 51 .

[0046] It can be understood that the reverse locking function of the ratchet stopper can ensure the stable driving of the handle 51 on the capstan 3, avoiding the reversal of the capstan 3 when the handle 51 stops applying force, thereby ensuring the stable extraction of the wire rod by the extraction mechanism.

[0047] It should be noted that the ratchet stopper uses a ratchet mechanism to achieve unidirectional rotation and reverse locking. The specific type of the ratchet stopper can be set according to actual needs and is not limited to this. For example, the ratchet in the ratchet stopper is sleeved on the rotating shaft of the handle 51. When the ratchet rotates with the handle 51 and drives the traction belt 4 to drag the wire rod, the pawl slides over the unidirectional teeth of the ratchet. When the ratchet rotates in the opposite direction, the pawl is stuck in the unidirectional teeth of the ratchet and prevents the ratchet from reversing. Among them, when the pawl is lifted and away from the ratchet, the ratchet can rotate arbitrarily in both directions.

[0048] like Figure 1 As shown, in some embodiments, the magnetic attraction component 2 includes: at least one magnetic base 21, the magnetic base 21 is arranged on the main body 1, and the magnetic base 21 is used for magnetic attraction on the iron core.

[0049] It is understandable that when the magnetic seat 21 is turned on, the main body 1 can be adsorbed on the iron core by the magnetic force of the magnetic seat 21, thereby ensuring the stable dragging and pulling out of the wire rod by the traction belt 4; when the magnetic seat 21 is closed, the adsorption force between the magnetic seat 21 and the iron core disappears, and the main body 1 can be easily separated from the iron core. Therefore, through the setting of the magnetic seat 21, the main body 1 can be stably set on the iron core and is also easy to disassemble and assemble.

[0050] It should be noted that the magnetic base 21 generates magnetic force when it is turned on and disappears when it is turned off. The specific type of the magnetic base 21 can be set according to actual needs and is not limited to this.

[0051] The number of the magnetic bases 21 can be set according to actual needs, and there is no limitation on this. For example, the number of the magnetic bases 21 can be one, two, three, four, etc.

[0052] like Figure 1 As shown, in some embodiments, the magnetic attraction component 2 further includes: at least one supporting foot 22, the supporting foot 22 is threadedly disposed on the main body 1, and the supporting foot 22 is used to abut against the iron core.

[0053] It can be understood that, through the support of the support foot 22, the main body 1 can be stably set on the iron core in cooperation with the magnetic seat 21, and because the support foot 22 is threadedly set on the main body 1, the support foot 22 can adjust the relative position on the main body 1 by rotation, so that the main body 1 can adapt to different iron core surfaces.

[0054] It should be noted that the support foot 22 is used to cooperate with the magnetic seat 21 to support the main body 1. The specific type of the support foot 22 can be set according to actual needs and is not limited to this. For example, the support foot 22 includes: a support rod and a support seat. The support rod is threaded on the main body 1, and the support seat is rotatably set on the support rod, and the support seat is used to rest against the iron core.

[0055] The number of the supporting legs 22 can be set according to actual needs, and there is no limitation on this. For example, the number of the supporting legs 22 can be one, two, three, four, etc.

[0056] like Figure 1 As shown, in some embodiments, the pulling mechanism also includes: a hook 6 and a pull belt (not shown in the figure), the hook 6 is arranged at the end of the traction belt 4 away from the winch 3, one end of the pull belt is used to be wound around the wire rod, and the end of the pull belt away from the wire rod is hooked on the hook 6.

[0057] It can be understood that since the hook 6 is arranged at the end of the traction belt 4 away from the winch 3, and the end of the pull belt away from the wire rod is hooked on the hook 6, the traction belt 4 can use the hook 6 and the pull belt to drag and pull out the wire rod, and it is easy to disassemble and assemble, and it is more convenient to use.

[0058] It should be noted that the hook 6 is used for hanging the drawstring, and the specific type of the hook 6 can be set according to actual needs, and there is no limitation on this. For example, the hook 6 can be a metal hook structure.

[0059] The drawstring is used to connect the hook 6 and the wire rod. The specific type of the drawstring can be set according to actual needs and is not limited to this. For example, it is a ribbon rope.

[0060] like Figure 1 As shown, in some embodiments, the main body 1 includes: a first support plate 11, a second support plate 12 and a third support plate 13, and the first support plate 11 is arranged between one end of the second support plate 12 and one end of the third support plate 13; wherein the capstan 3 is rotatably arranged between the second support plate 12 and the third support plate 13, the driving assembly 5 is arranged on the side of the second support plate 12 away from the third support plate 13, and the magnetic attraction assembly 2 is arranged on one end of the second support plate 12 and / or the third support plate 13 away from the first support plate 11.

[0061] It can be understood that since the first support plate 11 is arranged between one end of the second support plate 12 and one end of the third support plate 13, the first support plate 11, the second support plate 12 and the third support plate 13 constitute a U-shaped main body 1, thereby facilitating the traction belt 4 to drag the wire rod while ensuring stable bearing of the winch 3, the drive assembly 5 and the magnetic suction assembly 2.

[0062] It should be noted that the first support plate 11, the second support plate 12 and the third support plate 13 are used to form a U-shaped main body 1 structure, and the specific types of the first support plate 11, the second support plate 12 and the third support plate 13 can be set according to actual needs and are not limited to this.

[0063] like Figure 1 As shown, in some embodiments, the main body 1 also includes: a first reinforcing bolt 14 and a second reinforcing bolt 15, the first reinforcing bolt 14 is arranged between an end of the second support plate 12 away from the first support plate 11 and an end of the third support plate 13 away from the first support plate 11, the second reinforcing bolt 15 is arranged between an end of the second support plate 12 away from the first support plate 11 and an end of the third support plate 13 away from the first support plate 11, and the second reinforcing bolt 15 and the first reinforcing bolt 14 are arranged at intervals.

[0064] It can be understood that since the first reinforcing bolt 14 is arranged between the end of the second support plate 12 away from the first support plate 11 and the end of the third support plate 13 away from the first support plate 11, the first reinforcing bolt 14 can strengthen the structural strength between the second support plate 12 and the third support plate 13, thereby making the structural strength of the main body 1 higher, thereby ensuring the stable extraction of the wire rod by the traction belt 4.

[0065] Since the second reinforcing bolt 15 is arranged between the end of the second support plate 12 away from the first support plate 11 and the end of the third support plate 13 away from the first support plate 11, the second reinforcing bolt 15 can strengthen the structural strength between the second support plate 12 and the third support plate 13, thereby making the structural strength of the main body 1 higher, thereby ensuring the stable extraction of the wire rod by the traction belt 4.

[0066] It should be noted that the first reinforcing bolt 14 and the second reinforcing bolt 15 are used to connect the end of the second support plate 12 away from the first support plate 11 and the end of the third support plate 13 away from the first support plate 11 to strengthen the structural strength of the main body 1. The specific types of the first reinforcing bolt 14 and the second reinforcing bolt 15 can be set according to actual needs and are not limited thereto. The positions of the first reinforcing bolt 14 and the second reinforcing bolt 15 should not affect the movement of the traction belt 4.

[0067] The embodiment of the present disclosure further provides a maintenance device for a vertical hydro-turbine generator, comprising: at least one stator wire rod extraction mechanism as in the embodiment of the present disclosure.

[0068] It can be understood that since the magnetic attraction component 2 is arranged on the main body 1, the main body 1 can use the magnetic attraction force of the magnetic attraction component 2 to stably adsorb on the iron core of the stator; since the capstan 3 is rotatably arranged on the main body 1, and one end of the traction belt 4 is wound around the capstan 3, the rotation of the capstan 3 can wind up the traction belt 4, and then when the traction belt 4 is connected to the stator's wire rod, it can effectively drag the wire rod; since the driving component 5 is connected to the capstan 3 in transmission, the driving component 5 can drive the capstan 3 to rotate.

[0069] Driven by the driving component 5, the wire rod can be pulled out of the slot of the core by winding the traction belt 4 by the winch 3, so as to facilitate the maintenance of the stator core or wire rod. Moreover, the overall coordination of the magnetic suction component 2, the winch 3, the traction belt 4 and the driving component 5 realizes the stable force of the machine, which is not only simpler to operate, thereby effectively improving the maintenance efficiency, but also safer, effectively reducing the risk of personnel falling and equipment damage. Therefore, the construction requirements of high efficiency and high safety are met.

[0070] It should be noted that the number of pull-out mechanisms can be set according to actual needs and there is no limitation on this. For example, there are two pull-out mechanisms, and the two pull-out mechanisms are located at both ends of the wire rod respectively. The two pull-out mechanisms can implement the pull-out action of the wire rod synchronously or alternately.

[0071] In the description of the present disclosure, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0072] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A stator bar extraction mechanism, characterized in that: include: main body; A magnetic attraction component, which is arranged on the main body and is used for magnetically adsorbing on the iron core of the stator; A capstan, the capstan being rotatably disposed on the main body; A traction belt, one end of which is wound around the capstan, and one end of which is away from the capstan is used to connect to the wire rod of the stator; A driving assembly is connected to the capstan in a transmission manner and is used to drive the capstan to rotate so that the traction belt pulls the wire rod out of the slot of the iron core.

2. The stator wire bar extraction mechanism according to claim 1, characterized in that: The drive assembly comprises: A handle, the handle being rotatably disposed on the main body; A reducer is arranged on the main body, and a power input end of the reducer is connected to the handle in a transmission manner, and a power output end of the reducer is connected to the winch in a transmission manner.

3. The stator wire bar extraction mechanism according to claim 2, characterized in that: The reducer comprises: A first gear, wherein the first gear is coaxially connected to the handle; a second gear, the second gear being coaxially connected to the capstan; The first gear is meshed with the second gear, and the diameter of the first gear is smaller than the diameter of the second gear.

4. The stator wire bar extraction mechanism according to claim 2, characterized in that: The drive assembly also includes: A ratchet stopper is arranged on the main body, and the ratchet stopper is transmission-connected to the handle.

5. The stator wire bar extraction mechanism according to claim 1, characterized in that: The magnetic attraction component comprises: At least one magnetic seat is disposed on the main body and is used for magnetically adsorbing on the iron core.

6. The stator wire bar extraction mechanism according to claim 5, characterized in that: The magnetic attraction component also includes: At least one supporting foot is threadedly disposed on the main body and is used to abut against the iron core.

7. The stator wire bar extraction mechanism according to claim 1, characterized in that: The extraction mechanism also includes: A hook, the hook being arranged at an end of the traction belt away from the winch; A drawstring, one end of which is used to be wound around the wire rod, and one end of the drawstring away from the wire rod is hooked on the hook.

8. The stator wire bar extraction mechanism according to any one of claims 1 to 7, characterized in that: The subject includes: a first support plate, a second support plate and a third support plate, wherein the first support plate is disposed between one end of the second support plate and one end of the third support plate; Wherein, the winch is rotatably arranged between the second support plate and the third support plate, the driving assembly is arranged on a side of the second support plate away from the third support plate, and the magnetic attraction assembly is arranged on an end of the second support plate and / or the third support plate away from the first support plate.

9. The stator wire bar extraction mechanism according to claim 8, characterized in that: The subject also includes: a first reinforcing bolt, the first reinforcing bolt being arranged between an end of the second supporting plate away from the first supporting plate and an end of the third supporting plate away from the first supporting plate; A second reinforcing bolt is disposed between an end of the second support plate away from the first support plate and an end of the third support plate away from the first support plate, and the second reinforcing bolt is spaced apart from the first reinforcing bolt.

10. A maintenance device for a vertical hydro-generator, characterized in that: include: At least one stator bar extraction mechanism according to any one of claims 1 to 9.

Images