Auxiliary device for accurately installing main shaft of hydraulic generator

Abstract

The invention is suitable for the technical field of water wheel motor machining equipment, and provides a water wheel generator main shaft accurate installation auxiliary device which comprises a set of machine frames. Assembling grooves are formed in the opposite upper parts of the two racks; the longitudinal linear sliding rails are arranged in the two assembling grooves; the transverse bracket slides between the moving ends of the two longitudinal linear slide rails; the transverse linear sliding rail is arranged above the transverse bracket; the first adjusting mechanism is arranged on the transverse linear sliding rail; the second adjusting mechanism is arranged below the first adjusting mechanism; precise adjustment of the position, height and installation angle of the spindle is achieved, the spindle can be subjected to multi-dimensional adjustment in the installation process, the application flexibility of the device is further enhanced, the installation efficiency and precision are improved, and the device adapts to complex and changeable installation scenes; the installation precision and stability are improved, potential safety hazards in the main shaft hoisting process are reduced, and safety and reliability in the hoisting process are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of water turbine motor processing equipment, and in particular relates to a precision installation auxiliary device for a main shaft of a water turbine generator. Background Art

[0002] The main shaft of the hydro-generator, as the core component of the entire generator system, is usually quite heavy. Therefore, during the installation process, the accuracy and stability of the lifting tools are extremely high. Although the traditional lifting method can meet the installation requirements to a certain extent, it often has some obvious shortcomings;

[0003] First, it is difficult to achieve precise adjustment of the main shaft position, height and installation angle using traditional hoisting methods. Due to the precision limitations of hoisting equipment and errors in manual operation, it is difficult to ensure that the main shaft can be accurately placed in the predetermined position and achieve the required installation angle, which not only affects the installation efficiency, but may also have an adverse effect on the working performance and stability of the generator.

[0004] Secondly, the shaking of the rope during the lifting process poses a great safety hazard to the lifting process. Due to the heavy weight of the main shaft, the shaking of the rope during the lifting process may cause the main shaft position to be unstable and even cause a safety accident, which not only threatens the safety of the construction workers, but may also cause damage to the equipment. Summary of the invention

[0005] The present invention provides a precise installation auxiliary device for the main shaft of a hydro-turbine generator, aiming to solve the problem that the traditional main shaft lifting method has insufficient precision and is difficult to accurately adjust the main shaft position, height and installation angle, affecting the installation efficiency; at the same time, the shaking of the rope brings safety hazards and threatens the safety of personnel and equipment.

[0006] The present invention is implemented as follows: a precision installation auxiliary device for a main shaft of a hydro-turbine generator comprises a group of symmetrically arranged frames; two upper positions of the two frames are provided with assembly grooves; longitudinal linear slides arranged in the two assembly grooves; a transverse bracket sliding between the moving ends of the two longitudinal linear slides; a transverse linear slide arranged above the transverse bracket; a first adjustment mechanism arranged on the transverse linear slide; and a second adjustment mechanism arranged below the first adjustment mechanism; wherein the first adjustment mechanism comprises: a support plate arranged at the moving end of the transverse linear slide; an assembly seat arranged above the support plate; a first rotating shaft rotating in the assembly seat, a first rope being arranged around the first rotating shaft; a first motor arranged outside the assembly seat, the output end of the first motor being fixedly connected to the end key of the first rotating shaft; a transverse plate arranged on the bottom side of the support plate; a group of first electric push rods symmetrically arranged on the bottom side of the transverse plate; a connecting block arranged at the output ends of the two first electric push rods; a group of parallel limit rods are connected between the two connecting blocks.

[0007] Preferably, a connecting seat is provided on the side of the first rope away from the first rotating shaft, and a receiving plate is rotatably fitted on the bottom side of the connecting seat. A second motor is provided in the connecting seat, and an output end of the second motor is fixedly connected to an end key of the receiving plate.

[0008] Preferably, the second adjustment mechanism includes: a plurality of groups of vertical plates arranged on the upper surface of the supporting plate; a second rotating shaft is rotatably matched between every two adjacent vertical plates, and a second rope is arranged around the second rotating shaft; a sling is arranged on the side of the second rope away from the second rotating shaft; a third motor is arranged on the outer side of one of the vertical plates of each group, and the output ends of the plurality of the third motors are fixedly connected to the end keys of the corresponding second rotating shafts.

[0009] Preferably, the second adjustment mechanism further includes: an extension plate arranged outside the vertical plate; a second electric push rod is arranged on the inner side wall of each two opposite extension plates; a clamping frame arranged at the output end of a plurality of the second electric push rods; and a clamping roller rotating in the clamping frame.

[0010] Preferably, the middle portion of the clamping roller is recessed inward to form an arc-shaped clamping groove.

[0011] Preferably, a first channel for extension and retraction of the second rope is opened on the side wall of the receiving plate.

[0012] Preferably, a second channel for extension and retraction of the first rope is opened on the side wall of the support plate.

[0013] Preferably, a displacement sensor is provided on the side wall of the receiving plate.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] First: This device realizes precise adjustment of the position, height and installation angle of the main shaft. During the hoisting process, the position of the main shaft in the horizontal and vertical directions can be adjusted, which significantly improves the flexibility of the device and enables it to adapt to various complex and changeable installation scene requirements. Through the freely winding first rope and second rope, the device can automatically adjust the winding height, thereby accurately controlling the hoisting height of the main shaft. In addition, the rotatable design of the docking plate enables the main shaft to be adjusted in angle during the installation process, further enhancing the application flexibility of the device and improving the installation efficiency and accuracy.

[0016] Second: This device uses the first electric push rod to drive the connecting block to move up and down precisely, ensuring that during the height adjustment process, the limit rod can effectively limit the deviation or shaking of the first rope, thereby significantly improving the accuracy and stability of the main shaft installation. At the same time, the coordinated work of the second electric push rod and the clamping roller ensures the firm clamping of the second rope, effectively preventing the main shaft from shaking due to rope shaking during the lifting process, greatly reducing the safety hazards caused by excessive rope shaking, and ensuring the safety and reliability of the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is a front structural schematic diagram of the present invention;

[0019] Figure 3 It is a schematic diagram of the connection structure between the first rotating shaft and the first rope of the present invention;

[0020] Figure 4 It is a schematic diagram of the connection structure of the first electric push rod, the connection block and the limit rod of the present invention;

[0021] Figure 5 is a schematic structural diagram of a second regulating mechanism of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the second motor and the receiving plate of the present invention;

[0023] Figure 7 The present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0024] In the figure: 1. frame; 2. assembly groove; 3. longitudinal linear slide; 4. transverse bracket; 5. transverse linear slide; 6. support plate; 7. assembly seat; 8. first rotating shaft; 9. first rope; 10. first motor; 11. horizontal plate; 12. first electric push rod; 13. connecting block; 14. limit rod; 15. connecting seat; 16. receiving plate; 17. second motor; 18. vertical plate; 19. second rotating shaft; 20. second rope; 21. third motor; 22. extension plate; 23. second electric push rod; 24. clamping frame; 25. clamping roller; 26. clamping groove; 27. first channel; 28. second channel; 29. ​​displacement sensor; 30. sling. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] The embodiment of the present invention provides a precise installation auxiliary device for the main shaft of a hydro-turbine generator, such as Figure 1-7 As shown, it includes a set of symmetrically arranged frames 1; two mounting grooves 2 are provided at the upper positions of the two frames 1 relative to each other; longitudinal linear guide rails 3 are arranged in the two mounting grooves 2; a transverse bracket 4 sliding between the moving ends of the two longitudinal linear guide rails 3; a transverse linear guide rail 5 arranged above the transverse bracket 4; a first adjustment mechanism arranged on the transverse linear guide rail 5; and a second adjustment mechanism arranged below the first adjustment mechanism; wherein the first adjustment mechanism includes: a support plate 6 arranged at the moving end of the transverse linear guide rail 5; ... An assembly seat 7 above the support plate 6; a first rotating shaft 8 rotating in the assembly seat 7, and a first rope 9 is provided on the first rotating shaft 8; a first motor 10 is arranged on the outer side of the assembly seat 7, and the output end of the first motor 10 is fixedly connected with the end key of the first rotating shaft 8; a horizontal plate 11 is arranged on the bottom side of the support plate 6; a group of first electric push rods 12 are symmetrically arranged on the bottom side of the horizontal plate 11; a connecting block 13 is arranged at the output ends of the two first electric push rods 12; a group of parallel limit rods 14 are connected between the two connecting blocks 13.

[0028] It should be noted that due to the insufficient accuracy of traditional spindle hoisting methods, it is difficult to accurately adjust the spindle position, height and installation angle, which affects the installation efficiency; at the same time, the shaking of the rope brings safety hazards and threatens the safety of personnel and equipment. The present solution realizes the precise adjustment of the spindle position, height and installation angle. At the same time, the introduction of the limit rod 14 and the clamping roller 25 effectively limits the deviation or shaking of the two ropes, improves the accuracy and stability of the spindle installation, and ensures the safety and reliability of the spindle hoisting process.

[0029] Specifically, in this embodiment, the scheme mainly includes a group of symmetrically arranged racks 1; the racks 1 provide a stable foundation for the entire device, and the longitudinal linear slide rails 3 in the assembly grooves 2 allow the transverse brackets 4 to slide smoothly between the two racks 1, thereby achieving precise position adjustment in the horizontal direction, and the transverse linear slide rails 5 above the transverse brackets 4 provide movement capability in a direction perpendicular to the longitudinal slide rails, further enhancing the flexibility and adaptability of the device;

[0030] The support plate 6 is positioned by the moving end of the transverse linear slide rail 5, providing a stable support platform for the assembly seat 7 and the subsequent spindle installation. The first rotating shaft 8 in the assembly seat 7 rotates under the drive of the first motor 10, so that the first rope 9 can be wound or loosened, thereby accurately controlling the horizontal and vertical positions of the support plate 6; the first electric push rod 12 drives the connecting block 13 and the limit rod 14 to move up and down through a telescopic action, ensuring the displacement or shaking of the first rope 9 during the height adjustment process, and also ensuring the accuracy and stability of the spindle installation.

[0031] In a further preferred embodiment of the present invention, Figure 1-6 As shown, a connecting seat 15 is provided on the side of the first rope 9 away from the first rotating shaft 8, and a receiving plate 16 is rotatably matched with the bottom side of the connecting seat 15. A second motor 17 is provided in the connecting seat 15, and the output end of the second motor 17 is fixedly connected to the end key of the receiving plate 16.

[0032] In this embodiment, when the installation angle of the main shaft needs to be adjusted, the second motor 17 starts and drives the receiving plate 16 to rotate. The rotation of the receiving plate 16 drives the second adjustment mechanism to achieve synchronous rotation. Through this rotational movement, multiple angles can be adjusted, which improves the flexibility and efficiency of the adjustment and ensures that the installation requirements are met.

[0033] In a further preferred embodiment of the present invention, Figure 5 As shown, the second adjustment mechanism includes: a plurality of groups of vertical plates 18 arranged on the upper surface of the receiving plate 16; a second rotating shaft 19 is rotatably matched between every two adjacent vertical plates 18, and a second rope 20 is arranged on the second rotating shaft 19; a sling 30 is arranged on the side of the second rope 20 away from the second rotating shaft 19; a third motor 21 is arranged at the outer position of one of the vertical plates 18 of each group, and the output ends of the third motors 21 are fixedly connected with the end keys of the corresponding second rotating shaft 19.

[0034] In this embodiment, the sling 30 is used to connect and fix the main shaft to ensure the stability of the main shaft during the adjustment process. When the position or height of the main shaft needs to be precisely adjusted, the third motor 21 starts working to drive the corresponding second rotating shaft 19 to rotate. Since the second rope 20 is wound around the second rotating shaft 19, the second rope 20 will be tightened or loosened accordingly as the second rotating shaft 19 rotates. By controlling the rotation direction and speed of the third motor 21, the tightness of the second rope 20 can be finely adjusted. This adjustment method can directly affect the position and height of the main shaft connected to the sling 30, thereby achieving precise adjustment of the installation position and angle of the main shaft to meet specific installation requirements.

[0035] In a further preferred embodiment of the present invention, Figure 5 As shown, the second adjustment mechanism also includes: an extension plate 22 arranged on the outside of the vertical plate 18; a second electric push rod 23 is arranged on the inner side walls of each two opposite extension plates 22; a clamping frame 24 arranged at the output end of a plurality of the second electric push rods 23; and a clamping roller 25 rotating in the clamp.

[0036] In this embodiment, the position of the clamping frame 24 can be effectively adjusted by controlling the telescopic length of the second electric push rod 23. The change in the position of the clamping frame 24 further affects the relative distance between the clamping roller 25 and the second rope 20. During the adjustment process, the two clamping rollers 25 are precisely adjusted to the two sides of the second rope 20, thereby achieving a stable limiting clamp for the second rope 20. This design ensures that the main shaft can be stably clamped and fixed during the adjustment process, avoiding inaccurate installation or safety problems caused by the shaking of the second rope 20, significantly improving the stability of the main shaft hoisting, and ensuring the smooth installation of the main shaft of the hydro-turbine generator.

[0037] In a further preferred embodiment of the present invention, Figure 7 As shown, the middle portion of the clamping roller 25 is recessed inward to form an arc-shaped clamping groove 26 .

[0038] In this embodiment, the concave design of the arc-shaped clamping groove 26 increases the contact area between the clamping roller 25 and the second rope 20, thereby improving the firmness and stability of the clamping. This design can ensure that during the lifting process, even in the face of large external forces or vibrations, the clamping roller 25 can always firmly clamp the second rope 20 to prevent the main shaft from shaking or falling off.

[0039] In a further preferred embodiment of the present invention, Figure 5 As shown, the side wall of the receiving plate 16 is provided with a first channel 27 for the extension and retraction of the second rope 20 .

[0040] In this embodiment, the shape of the first channel 27 matches the second rope 20, and will neither restrict the movement of the second rope 20 nor cause the second rope 20 to shake or rub during movement due to being too large.

[0041] In a further preferred embodiment of the present invention, Figure 3 As shown, the side wall of the support plate 6 is provided with a second channel 28 for the extension and retraction of the first rope 9 .

[0042] In this embodiment, the second channel 28 can meet the needs of the first rope 9 to be extended and retracted without affecting the overall structure of the support plate 6 .

[0043] In a further preferred embodiment of the present invention, Figure 1 As shown, a displacement sensor 29 is provided on the side wall of the receiving plate 16 .

[0044] In this embodiment, the data collected by the displacement sensor 29 (BGL-235NZ-485) can be used to further analyze the motion state, stability and load condition of the receiving plate 16, providing an important basis for the decision-making of the control system.

[0045] Working principle: The rack 1 of the present invention serves as the basis of the entire device, ensuring the stability of the device; between the racks 1, a longitudinal linear slide rail 3 is installed in the assembly groove 2, so that the transverse bracket 4 can slide smoothly between the two racks 1; this design allows the transverse bracket 4 to be accurately adjusted in the horizontal direction, thereby enhancing the flexibility of the device;

[0046] Above the transverse bracket 4, the installation of the transverse linear slide rail 5 provides the support plate 6 with the ability to move in a direction perpendicular to the longitudinal direction, further improving the adaptability of the device; the support plate 6 is adjusted in position by the moving end of the transverse linear slide rail 5, providing a stable support platform for the subsequent installation of the assembly seat 7;

[0047] A first rotating shaft 8 is provided inside the assembly seat 7 and rotates under the drive of the first motor 10; this enables the first rope 9 to be wound or loosened as required, thereby achieving precise position control of the support plate 6 in the horizontal and vertical directions;

[0048] In order to ensure the stability of the first rope 9 during the height adjustment process, the first electric push rod 12 drives the connecting block 13 and the limit rod 14 to move up and down through a telescopic action; this effectively prevents the first rope 9 from deflecting or shaking during the adjustment process, ensuring the accuracy and stability of the main shaft installation;

[0049] The sling 30 is used to connect and fix the main shaft to ensure the stability of the main shaft during the adjustment process; when the height of the sling 30 needs to be accurately adjusted, the third motor 21 starts to work and drives the corresponding second shaft 19 to rotate; since the second rope 20 is wound around the second shaft 19, the second rope 20 will be tightened or loosened accordingly as the second shaft 19 rotates; by accurately controlling the rotation direction and speed of the third motor 21, the tightness of the second rope 20 can be finely adjusted, thereby accurately adjusting the position and height of the main shaft;

[0050] When the spindle installation angle is further adjusted, the second motor 17 starts and drives the receiving plate 16 to rotate; the rotation of the receiving plate 16 drives the second adjustment mechanism to achieve synchronous rotation, thereby improving the flexibility and efficiency of the adjustment;

[0051] In order to achieve a stable clamping of the second rope 20, the second electric push rod 23 adjusts the position of the clamping frame 24 by controlling its telescopic length; the change of the position of the clamping frame 24 affects the relative distance between the clamping roller 25 and the second rope 20; during the adjustment process, the two clamping rollers 25 are accurately adjusted to the two sides of the second rope 20, ensuring a stable clamping of the second rope 20;

[0052] The concave design of the arc-shaped clamping groove 26 not only increases the contact area between the clamping roller 25 and the second rope 20, improving the firmness and stability of the clamping, but also effectively resists external forces or vibrations during the hoisting process to prevent the main shaft from shaking or falling off;

[0053] In addition, the design of the first channel 27 and the second channel 28 takes into account the movement requirements of the second rope 20 and the first rope 9, and their shapes match the ropes, which will neither restrict the movement of the ropes nor cause the ropes to shake or rub during movement due to being too large; through the coordinated work of the above-mentioned parts, the entire device can achieve precise adjustment of the main shaft position, height and installation angle, ensuring the smooth installation of the main shaft of the hydro-turbine generator.

[0054] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0055] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0056] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A precision installation auxiliary device for a main shaft of a hydro-generator, characterized in that: include: A set of symmetrically arranged racks; The upper positions of the two frames relative to each other are both provided with assembly grooves; A longitudinal linear slide rail disposed in the two assembly grooves; A transverse bracket sliding between the moving ends of the two longitudinal linear slide rails; A transverse linear slide rail disposed above the transverse support; A first adjustment mechanism provided on the transverse linear slide rail; and a second adjusting mechanism disposed below the first adjusting mechanism; Wherein, the first adjustment mechanism comprises: A support plate disposed at the moving end of the transverse linear slide rail; An assembly seat disposed above the support plate; A first rotating shaft rotates in the assembly seat, wherein a first rope is wound around the first rotating shaft; A first motor is arranged outside the assembly seat, and an output end of the first motor is fixedly connected to an end key of the first rotating shaft; A horizontal plate disposed on the bottom side of the support plate; A group of first electric push rods symmetrically arranged on the bottom side of the horizontal plate; A connecting block provided at the output ends of the two first electric push rods; A group of parallel limiting rods are connected between the two connecting blocks.

2. A hydro-generator main shaft precision installation auxiliary device as claimed in claim 1, characterized in that: A connecting seat is arranged on the side of the first rope away from the first rotating shaft, and a receiving plate is rotatably matched with the bottom side of the connecting seat. A second motor is arranged in the connecting seat, and an output end of the second motor is fixedly connected to an end key of the receiving plate.

3. A hydro-generator main shaft precision installation auxiliary device as claimed in claim 2, characterized in that: The second adjustment mechanism comprises: A plurality of groups of vertical plates arranged on the upper surface of the receiving plate; A second rotating shaft is rotatably provided between every two adjacent vertical plates, and a second rope is provided around the second rotating shaft; a sling is provided on the side of the second rope away from the second rotating shaft; A third motor is arranged at the outer side of one of the vertical plates of each group, and output ends of several of the third motors are fixedly connected with the end keys of the corresponding second rotating shafts.

4. A hydro-generator main shaft precision installation auxiliary device as claimed in claim 3, characterized in that: The second adjustment mechanism also includes: An extension plate disposed on the outer side of the vertical plate; The inner side walls of each two opposite extension plates are provided with a second electric push rod; A clamping frame provided at the output ends of the plurality of second electric push rods; A clamping roller rotates within the clamp.

5. A hydro-generator main shaft precision installation auxiliary device as claimed in claim 4, characterized in that: The middle part of the clamping roller is recessed inwards to form an arc-shaped clamping groove.

6. A hydro-generator main shaft precision installation auxiliary device as claimed in claim 3, characterized in that: The side wall of the receiving plate is provided with a first channel for the extension and retraction of the second rope.

7. The auxiliary device for precise installation of the main shaft of a hydro-generator according to claim 1, characterized in that: The side wall of the support plate is provided with a second channel for the extension and retraction of the first rope.

8. A hydro-generator main shaft precision installation auxiliary device as claimed in claim 6, characterized in that: The side wall of the receiving plate is provided with a displacement sensor.

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