Fan blade bolt dismounting tool

Abstract

The utility model relates to the technical field of wind power, in particular to a fan blade bolt dismounting tool which comprises a driving gear, a driving rotating rod is connected to the center of the driving gear, a connecting gear is connected to the side wall of the driving gear in a meshed mode, and a rotating rotating rod is connected to the center of the connecting gear. Two sets of rotating gears are connected to the side wall of the connecting gear in a meshed mode, and limiting rotating rods are connected to the centers of the rotating gears; according to the fan blade bolt disassembling tool, through the mutual action of the driving gear, the driving rotating rod, the connecting gear, the rotating rotating rod, the rotating gear, the limiting rotating rod, the fixed connecting plate, the arc-shaped sliding groove and the anti-disengaging structure in the fan blade bolt disassembling tool, the fan blade bolts can be disassembled according to the distance between the two sets of fan blade bolts; and the distance between the connecting bases on the two sets of limiting rotating rods is adjusted, then the two sets of fan blade bolts are disassembled at the same time, and then the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wind power, concretely is fan blade bolt dismounting frock. BACKGROUND

[0002] Fan blade is generally connected on fan vertical rod through bolt, along with fan operation life increase, blade bolt fatigue fracture phenomenon is seen frequently in industry;Through detection analysis finds that there is gap between blade root section and blade flange and increases bolt axial shearing force, finally leads to blade bolt fatigue fracture, in order to effectively grasp blade bolt fatigue life, avoid bolt fracture and lead to fan failure and damage, need regularly carry out bolt performance detection, and detection means mainly has two kinds: one is tower nondestructive testing, need not dismount bolt and can be realized, but cannot overall evaluate bolt performance;One is laboratory test detection, needs to dismount blade bolt, but can effectively evaluate mechanical performance, overall grasps each performance index.

[0003] When fan blade bolt is dismounted, most of single bolt dismounting work is carried out through traditional wrench, in this process, bolt dismounting efficiency is slow, in view of above problem, fan blade bolt dismounting frock needs to be provided. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that when fan blade bolt is dismounted, most of single bolt dismounting work is carried out through traditional wrench, in this process, bolt dismounting efficiency is slow, the utility model provides fan blade bolt dismounting frock to solve the above problem.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] Fan blade bolt dismounting frock, including drive gear, the center of drive gear is connected with drive rotating rod, the side wall of drive gear is connected with the meshing connection of link gear, the center of link gear is connected with rotating rod, the side wall of link gear is connected with two groups of rotating gears with meshing connection, the center of rotating gear is connected with limit rotating rod, the upper and lower end surfaces of link gear are connected with fixed connecting plate through connecting plate, the fixed connecting plate is equipped with arc-shaped sliding slot corresponding to limit rotating rod, the end surface of drive rotating rod and the bottom of limit rotating rod are all connected with anti-drop structure, the end surface of limit rotating rod is connected with rotating knob, the end surface of fixed connecting plate is connected with handle.

[0007] As the preferred scheme of the utility model, the fixed connecting plate is equipped with link hole corresponding to drive rotating rod, wherein the connection mode of drive rotating rod and link hole is rotary connection.

[0008] As the preferred scheme of the utility model, the outer wall of the driving rotating lever and the end face of the fixed connecting plate are provided with a limiting snap spring.

[0009] As the preferred scheme of the utility model, the fixed connecting plate and the rotating rotating lever are provided with a connecting hole in a corresponding mode, and the connecting mode between the rotating rotating lever and the connecting hole is rotary connection.

[0010] As the preferred scheme of the utility model, the outer wall of the rotating rotating lever and the end face of the fixed connecting plate are provided with a limiting nut, and the connecting mode between the limiting nut and the rotating rotating lever is screw connection.

[0011] As the preferred scheme of the utility model, the cooperation mode between the limiting rotating lever and the arc-shaped sliding groove is gap cooperation, and the side wall of the limiting rotating lever and the end face of the fixed connecting plate are provided with a limiting stopper in a corresponding mode.

[0012] As the preferred scheme of the utility model, the anti-falling structure comprises a connecting base, the connecting base is connected to the end face of the driving rotating lever and the bottom of the limiting rotating lever, a spring sleeve is connected in the inner cavity of the connecting base, a limiting spring is connected in the inner cavity of the spring sleeve, and an anti-falling steel ball is connected in the inner cavity of the spring sleeve and located at the two ends of the limiting spring.

[0013] As the preferred scheme of the utility model, the spring sleeve is a hollow structure, the cooperation mode between the spring sleeve and the limiting spring is gap cooperation, the connecting base is a prism structure, a ratchet wrench and a nut sleeve are provided on the connecting base in a corresponding mode, and an anti-falling groove is provided on the ratchet wrench and the nut sleeve and corresponds to the anti-falling steel ball.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the driving gear, the driving rotating lever, the connecting gear, the rotating rotating lever, the rotating gear, the limiting rotating lever, the fixed connecting plate, the arc-shaped sliding groove and the anti-falling structure are arranged in the fan blade bolt dismounting tool, so that the mutual action between the components in the driving gear, the driving rotating lever, the connecting gear, the rotating rotating lever, the rotating gear, the limiting rotating lever, the fixed connecting plate, the arc-shaped sliding groove and the anti-falling structure can adjust the distance between the connecting bases on the two groups of limiting rotating levers according to the distance between the two groups of fan blade bolts, and then the work of dismounting the two groups of fan blade bolts is simultaneously performed, thereby improving the work efficiency.

[0016] In the utility model, the anti-falling structure is arranged in the fan blade bolt dismounting tool, so that the mutual action between the connecting base, the spring sleeve, the limiting spring and the anti-falling steel ball in the anti-falling structure can prevent the ratchet wrench and the nut sleeve from falling off after installation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front surface of the utility model positive side structure schematic diagram;

[0018] Figure 2 It is the back surface of the utility model positive side structure schematic diagram;

[0019] Figure 3 It is the partial structure schematic diagram of the utility model Figure 2 ;

[0020] Figure 4 It is the anti-drop structure structure schematic diagram of the utility model;

[0021] Figure 5 It is the section structure schematic diagram of the utility model Figure 4 .

[0022] In the drawing: 1, drive gear; 2, drive rotating rod; 3, engagement gear; 4, rotating rotating rod; 5, rotating gear; 6, limit rotating rod; 7, fixed connecting plate; 8, arc-shaped sliding groove; 9, anti-drop structure; 10, rotating knob; 11, handle; 901, connecting base; 902, spring sleeve; 903, limit spring; 904, anti-drop steel ball. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described below in a clear and complete manner in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Embodiment, please refer to Figures 1-5 , the utility model provides a technical scheme:

[0025] Fan blade bolt dismounting tool, including drive gear 1, the center of drive gear 1 is connected with drive rotating rod 2, the side wall of drive gear 1 is engagedly connected with engagement gear 3, the center of engagement gear 3 is connected with rotating rotating rod 4, the side wall of engagement gear 3 is engagedly connected with two groups of rotating gear 5, the center of rotating gear 5 is connected with limit rotating rod 6, the upper and lower end surfaces of engagement gear 3 are connected with fixed connecting plate 7 through connecting plate, arc-shaped sliding groove 8 is set up on fixed connecting plate 7 and corresponds limit rotating rod 6, the end surface of drive rotating rod 2 and the bottom of limit rotating rod 6 are all connected with anti-drop structure 9, rotating knob 10 is connected on the end surface of limit rotating rod 6, handle 11 is connected on the end surface of fixed connecting plate 7;

[0026] In the embodiment, refer to Figure 1 、 Figure 2 andFigure 3 According to the distance between the two groups of fan blade bolts, the distance between the two groups of limiting rotating rods 6 can be adjusted by manually rotating the rotating knob 10 on the end face of the limiting rotating rod 6, and then the nut sleeve is sleeved on the two groups of fan blade bolts, and then the ratchet wrench is rotated to drive the rotating rod 2, when the driving rotating rod 2 rotates, the driving gear 1 is driven to rotate, and then the rotating rotating rod 4, the connecting gear 3, the two groups of rotating gears 5 and the nut sleeve on the bottom connecting base 901 of the limiting rotating rod 6 are sequentially driven to rotate, and then the fan blade bolt dismounting work is carried out;

[0027] Further, the fixing plate 7 is provided with an engaging hole corresponding to the driving rotating rod 2, and the connection between the driving rotating rod 2 and the engaging hole is a rotating connection. The outer wall of the driving rotating rod 2 is provided with a limiting snap spring on the end face of the fixing plate 7. The fixing plate 7 is provided with an engaging hole corresponding to the rotating rotating rod 4, and the connection between the rotating rotating rod 4 and the engaging hole is a rotating connection. The outer wall of the rotating rotating rod 4 is provided with a limiting nut on the end face of the fixing plate 7, and the connection between the limiting nut and the rotating rotating rod 4 is a threaded connection. The limiting rotating rod 6 and the arc-shaped sliding groove 8 are matched in a clearance fit. The side wall of the limiting rotating rod 6 is provided with a limiting block corresponding to the end face of the fixing plate 7. Through the mutual action between the various components in the device, the device can run smoothly.

[0028] In this embodiment, with reference to Figure 1 , Figure 4 and Figure 5 , the anti-dropping structure 9 includes a connecting base 901 connected to the end face of the driving rotating rod 2 and the bottom of the limiting rotating rod 6. The inner cavity of the connecting base 901 is connected with a spring sleeve 902. The inner cavity of the spring sleeve 902 is connected with a limiting spring 903. The inner cavity of the spring sleeve 902 is connected with an anti-dropping steel ball 904 at both ends of the limiting spring 903.

[0029] Based on the above structure and the connection relationship, a ratchet wrench and a nut sleeve are provided on the connecting base 901. The anti-dropping groove is provided on the ratchet wrench and the nut sleeve corresponding to the anti-dropping steel ball 904. The corresponding nut sleeve is selected for the fan blade bolt, and the nut sleeve is installed on the connecting base 901 at the bottom of the limiting rotating rod 6.

[0030] Further, the spring sleeve 902 is a hollow structure, the matching mode of the spring sleeve 902 and the limiting spring 903 is a clearance fit, the connecting base 901 is a prism structure, the connecting base 901 is correspondingly provided with a ratchet wrench and a nut sleeve, wherein the ratchet wrench and the nut sleeve are provided with anti-dropping grooves corresponding to the anti-dropping steel balls 904, and the mutual action between the various components in the anti-dropping structure 9 can make the anti-dropping structure 9 run smoothly when in use.

[0031] The working process of the utility model: when the fan blade bolt dismounting tool is used, corresponding ratchet wrench and nut sleeve are arranged on the connecting base 901, wherein the ratchet wrench and the nut sleeve are provided with anti-dropping grooves corresponding to the anti-dropping steel balls 904, and the corresponding nut sleeve is selected for the fan blade bolt under the condition, the nut sleeve is installed on the connecting base 901 at the bottom of the limiting rotating rod 6, then according to the distance between the two groups of fan blade bolts, the limiting rotating rod 6 and the arc-shaped sliding groove 8 are matched in a clearance fit, the rotating knob 10 on the end face of the limiting rotating rod 6 is manually rotated, the distance between the connecting bases 901 on the two groups of limiting rotating rods 6 is adjusted, then the nut sleeve is sleeved on the two groups of fan blade bolts, then the ratchet wrench is used, the engaging hole is arranged on the fixed connecting plate 7 and corresponds to the driving rotating rod 2, the driving rotating rod 2 is connected with the engaging hole in a rotary connection mode, the driving rotating rod 2 is rotated, the driving gear 1 is driven to rotate, the engaging gear 3 is connected on the side wall of the driving gear 1, the rotating rod 4 is connected at the center of the engaging gear 3, the engaging hole is arranged on the fixed connecting plate 7 and corresponds to the rotating rod 4, the rotating rod 4 is connected with the engaging hole in a rotary connection mode, the engaging gear 3 is driven to rotate, the two groups of rotating gears 5 are connected on the side wall of the engaging gear 3, the limiting rotating rod 6 and the arc-shaped sliding groove 8 are matched in a clearance fit, the limiting stoppers are correspondingly arranged on the side wall of the limiting rotating rod 6 and located on the end face of the fixed connecting plate 7, the rotating gears 5 are driven to rotate, when the rotating gears 5 are rotated, the nut sleeve on the connecting base 901 at the bottom of the limiting rotating rod 6 is rotated, and then the fan blade bolt dismounting work is carried out.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fan blade bolt dismounting tool comprising a driving gear (1), characterized in that: The center of the driving gear (1) is connected with a driving rotating rod (2), the side wall of the driving gear (1) is connected with an engaging gear (3) in meshing connection, the center of the engaging gear (3) is connected with a rotating rotating rod (4), the side wall of the engaging gear (3) is connected with two groups of rotating gears (5) in meshing connection, the center of the rotating gear (5) is connected with a limiting rotating rod (6), the upper and lower end faces of the engaging gear (3) are connected with a fixed connecting plate (7) through a connecting plate, the arc-shaped sliding grooves (8) are formed in the fixed connecting plate (7) and correspond to the limiting rotating rod (6), the end face of the driving rotating rod (2) and the bottom of the limiting rotating rod (6) are connected with anti-dropping structures (9), the end face of the limiting rotating rod (6) is connected with a rotating knob (10), and the end face of the fixed connecting plate (7) is connected with a handle (11).

2. The fan blade bolt dismounting tool according to claim 1, characterized in that: The fixed connecting plate (7) is provided with an engaging hole corresponding to the driving rotating rod (2), and the driving rotating rod (2) is rotatably connected to the engaging hole.

3. The fan blade bolt removal tool of claim 1, wherein: A limiting clasp is arranged on the outer wall of the driving rotating rod (2) and located on the end face of the fixed connecting plate (7).

4. The fan blade bolt removal tool of claim 1, wherein: The fixed connecting plate (7) is provided with an engaging hole corresponding to the rotating rotating rod (4), and the rotating rotating rod (4) is rotatably connected to the engaging hole.

5. The fan blade bolt removal tool of claim 1, wherein: A limiting nut is arranged on the outer wall of the rotating rotating rod (4) and located on the end face of the fixed connecting plate (7), and the limiting nut is threadedly connected to the rotating rotating rod (4).

6. The fan blade bolt removal tool of claim 1, wherein: The limiting rotating rod (6) is in clearance fit with the arc-shaped sliding grooves (8), and a limiting stopper is correspondingly arranged on the side wall of the limiting rotating rod (6) and located on the end face of the fixed connecting plate (7).

7. The fan blade bolt removal tool of claim 1, wherein: The anti-dropping structure (9) comprises a connecting base (901), the connecting base (901) is connected to the end face of the driving rotating rod (2) and the bottom of the limiting rotating rod (6) respectively, a spring sleeve (902) is connected in the inner cavity of the connecting base (901), a limiting spring (903) is connected in the inner cavity of the spring sleeve (902), and anti-dropping steel balls (904) are connected in the inner cavity of the spring sleeve (902) and located at the two ends of the limiting spring (903).

8. The fan blade bolt removal tool of claim 7, wherein: The spring sleeve (902) is a hollow structure, the spring sleeve (902) is in clearance fit with the limiting spring (903), the connecting base (901) is a prism structure, and a ratchet wrench and a nut sleeve are correspondingly arranged on the connecting base (901), wherein the anti-dropping grooves are formed in the ratchet wrench and the nut sleeve and correspond to the anti-dropping steel balls (904).

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