Dismounting tool for variable pitch cylinder piston rod cylinder cover

Abstract

The utility model relates to the technical field of wind power generation, in particular to a dismounting tool for a variable pitch cylinder piston rod cylinder cover, which comprises a lantern ring sleeved on the cylinder cover, and a locking piece connected with the cylinder cover is arranged on the lantern ring. Two first rods are fixedly connected to the front end of the lantern ring, and two second rods are fixedly connected to the front ends of the two first rods; wherein at least parts of the end parts of the first rod and the second rod protrude out of the outer side of the lantern ring to form a driving arm; the lantern ring is arranged on the outer side of the cylinder cover in a sleeving mode, the lantern ring and the cylinder cover are connected and fixed through the locking piece, the lantern ring can be rotated anticlockwise with the driving arm as a fulcrum in the disassembling process, and therefore the cylinder cover can be driven to rotate, and disassembling of the cylinder cover is achieved; and a plurality of driving fulcrums can be formed on the end face of the lantern ring, so that the rotating driving convenience of the lantern ring can be improved in the rotating dismounting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially, relate to a kind of dismantling tool of variable pitch cylinder piston rod cylinder cover. BACKGROUND

[0002] Variable pitch system is the core part of wind turbine, and the traditional hydraulic variable pitch system mainly includes three independent high-efficiency hydraulic drive variable pitch cylinders, which drives the blade to rotate by accurately controlling the extension and retraction of the cylinder piston rod, to realize variable pitch.

[0003] However, the application of the existing hydraulic variable pitch system in the wind turbine also has certain technical challenges, as the sealing element of the variable pitch cylinder is prone to aging, cracking and oil leakage due to high temperature, which threatens the normal operation of the wind turbine, so it is necessary to disassemble the variable pitch cylinder and replace the sealing ring.

[0004] When replacing the sealing ring of the variable pitch cylinder, the cylinder head needs to be opened first, and then the cylinder cover can be opened to replace the sealing ring. However, the cylinder cover usually lacks special tools, resulting in low work efficiency. In addition, improper tools or excessive force can easily cause plastic deformation of metal components, which may damage the internal structure. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art that the cylinder cover usually lacks special tools, resulting in low work efficiency, and provides a dismantling tool for variable pitch cylinder piston rod cylinder cover.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A dismantling tool for variable pitch cylinder piston rod cylinder cover is designed, which includes a sleeve ring for sleeving on the cylinder cover, and a locking element connected with the cylinder cover is arranged on the sleeve ring.

[0008] Two first rods are fixedly connected to the front end of the sleeve ring, and two second rods are fixedly connected to the front end of the two first rods.

[0009] At least part of the first rod and the second rod end protrudes from the outside of the sleeve ring to form a driving arm.

[0010] The front end of the two first rods is detachably connected with a tool assembly through a clamping element.

[0011] Further, the locking element is a bolt threaded through the outside of the sleeve ring, and the bolt is threadedly connected with the threaded hole on the cylinder cover.

[0012] Further, two first rods and two second rods are distributed along the transverse direction and the longitudinal direction respectively, and together form a cross-shaped structure, and the driving arm is formed on the side of the connection between the first rod and the second rod.

[0013] Further, a support seat is further formed on the end surface of the sleeve ring, and a groove adapted to the second rod is formed on the end surface of the support seat, and the second rod is fixedly connected with the support seat.

[0014] Further, the tool assembly comprises a rotating rod and a wrench rod pivotally connected to the end of the rotating rod, and an angle locking assembly is arranged between the rotating rod and the wrench rod.

[0015] The end of the rotating rod is fixedly provided with a sleeve for sleeving the driving arm, and the end of the wrench rod is detachably connected with a sleeve for sleeving a locking member.

[0016] Further, the angle locking assembly comprises a plug rod movably inserted into the inside of the rotating rod through a spring, the end of the rotating rod is provided with a notch, the bottom of the wrench rod is fixedly connected with an ear seat, and the ear seat is pivotally connected to the notch through a pin shaft.

[0017] Further, the top end of the plug rod extends into the notch, a T-shaped groove is further formed on the end surface of the rotating rod, a guide shaft is fixedly connected to the side of the plug rod and slides in the T-shaped groove, and the bottom of the ear seat is provided with two clamping openings, and the top end of the plug rod is inserted into the clamping openings.

[0018] Further, the end of the wrench rod has a rectangular rod, a rectangular groove adapted to the rectangular rod is formed on the end surface of the sleeve, a positioning glass bead is embedded on the end surface of the rectangular rod, and a positioning hole adapted to the extension end of the positioning glass bead is formed on the end surface of the sleeve.

[0019] The utility model proposes a kind of dismantling tool of the piston rod cylinder cover of variable pitch cylinder, and beneficial effect lies in: in the utility model, sleeve ring is sleeved outside cylinder cover by using, and is connected and fixed between locking member and cylinder cover, when disassembling, the sleeve ring can be rotated counterclockwise with driving arm as fulcrum, so as to drive cylinder cover to rotate, to realize the disassembly of cylinder cover, then the design of two first rods and two second rods can form multiple driving fulcrums on the end surface of sleeve ring, so as to improve the rotation driving convenience of sleeve ring in the process of rotation disassembly, then tool assembly can install and disassemble locking member, and can be used as lengthening rod to lengthen the length of force arm of driving arm, to improve the rotation convenience of sleeve ring. ACCURACY OF DRAWINGS

[0020] Figure 1 it is the perspective view of the utility model;

[0021] Figure 2 It is the collar structure schematic view of the utility model;

[0022] Figure 3 It is the tool assembly structure schematic view of the utility model;

[0023] Figure 4 It is the rectangular rod structure schematic view of the utility model.

[0024] In the drawing: 1, collar;11, support seat;2, locking piece;3, first rod;4, second rod;5, drive arm;6, tool assembly;61, rotating rod;62, wrench rod;621, ear seat;622, rectangular rod;623, positioning glass bead;63, angle locking assembly;631, spring;632, plug rod;633, slot;634, guide shaft;635, bayonet;64, sleeve;65, sleeve;651, rectangular slot;652, positioning hole;7, clamping piece. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Reference Figures 1-4 For an embodiment of the utility model, it discloses a kind of disassembly tool of variable pitch cylinder piston rod cylinder cover, specifically the tool includes the collar 1 for being set on cylinder cover, locking piece 2 is provided on the collar 1 and connected with cylinder cover, as preferred, the locking piece 2 in the embodiment is bolt that is arranged on the outside of the collar 1, the bolt is connected with the threaded hole on cylinder cover by thread, the bolt in the embodiment is provided with three, and circumferentially distributed on the outside of the collar 1;

[0027] Two first rods 3 are fixedly connected to the front end of the collar 1, the front end of two first rods 3 is fixedly connected with two second rods 4, the first rod 3 in the embodiment is welded with the collar 1, of course, the second rod 4 and the first rod 3 are also welded fixedly between, so as to ensure the connection strength of first rod 3, second rod 4 and the collar 1;

[0028] Wherein at least part of the first rod 3 and the second rod 4 end portion protrudes from the outside of the collar 1, to form a drive arm 5;

[0029] The front ends of the two first rods 3 are detachably connected with a tool assembly 6 through a clamping piece 7.

[0030] Specifically, in the embodiment, the sleeve ring 1 is sleeved outside the cylinder cover, and is connected and fixed between the locking piece 2 and the cylinder cover. When disassembling, the sleeve ring 1 is counterclockwise rotated around the driving arm 5 as a fulcrum, so that the cylinder cover is driven to rotate, thereby achieving the disassembly of the cylinder cover. In addition, the two first rods 3 and the two second rods 4 are arranged in a cross shape, and the driving arm 5 is formed on the side of the connection between the first rod 3 and the second rod 4.

[0031] It should be noted that the two first rods 3 and the two second rods 4 are arranged in a cross shape, and the driving arm 5 is formed on the side of the connection between the first rod 3 and the second rod 4.

[0032] Further, considering that the second rod 4 is welded to the front side of the first rod 3, in order to ensure the stability of the middle part of the second rod 4, a support seat 11 is further formed on the end face of the sleeve ring 1, and a groove matched with the second rod 4 is formed in the end face of the support seat 11. The second rod 4 is fixedly connected with the support seat 11. Of course, the second rod 4 and the support seat 11 can also be fixedly connected by welding.

[0033] In some embodiments, the tool assembly 6 includes a rotating rod 61 and a wrench rod 62 pivotally connected to the end of the rotating rod 61, and an angle locking assembly 63 is arranged between the rotating rod 61 and the wrench rod 62.

[0034] The end of the rotating rod 61 is fixedly provided with a sleeve 64 sleeving the driving arm 5, and the end of the wrench rod 62 is detachably connected with a sleeve 65 sleeving the locking piece 2.

[0035] That is, in the embodiment, the rotating rod 61 and the wrench rod 62 are designed to be rotatable. When the two rod members are in a vertical state, they can be used as a rotating tool. At this time, the sleeve 64 on the end of the rotating rod 61 is inserted outside the driving arm 5. By increasing the length of the force arm of the rotating rod 61 and the wrench rod 62, the driving arm 5 can be easily rotated to drive the sleeve ring 1 to rotate.

[0036] Of course when the rotating rod 61 and the wrench rod 62 are in the vertical state, at this time can be used as a dismounting tool for the locking piece 2, similarly when the bending state, the sleeve 65 on the end of the wrench rod 62 is inserted in the head end of the locking piece 2, since the locking piece 2 is a bolt, the inside of the sleeve 65 should also be provided as a polygonal hole, after that the circumferential rotation of the rotating rod 61 can be realized to realize the circumferential rotation of the locking piece 2, thereby realizing the installation and dismounting operation of the locking piece 2, without the aid of additional tools, improving the convenience of operation.

[0037] On the basis of the above embodiment, the vertical and perpendicular angles of the rotating rod 61 and the wrench rod 62 are controlled in the embodiment, and the following scheme is adopted in the embodiment:

[0038] Specifically, the angle locking assembly 63 comprises an insertion rod 632 movably inserted in the inside of the rotating rod 61 through a spring 631, the end of the rotating rod 61 is provided with a notch, the bottom of the wrench rod 62 is fixedly connected with an ear seat 621, and the ear seat 621 is rotatably connected in the notch through a pin shaft.

[0039] On the basis of the above embodiment, the top end of the insertion rod 632 extends into the notch in the embodiment, a T-shaped slot 633 is further provided on the end face of the rotating rod 61, the side of the insertion rod 632 is fixedly connected with a guide shaft 634 sliding in the T-shaped slot 633, the bottom of the ear seat is provided with two clamping holes 635, and the two clamping holes 635 are respectively used for corresponding the vertical and bending positions of the wrench rod 62. The top end of the insertion rod 632 is inserted in the clamping hole 635.

[0040] That is, when the wrench rod 62 needs to be rotated and adjusted, first, the guide shaft 634 is actuated to drive the insertion rod 632 to move in the inside of the rotating rod 61, at this time the end of the insertion rod 632 is separated from the clamping hole 635, so that the wrench rod 62 can be freely driven, such as rotated to the vertical state, at this time the pressing on the guide shaft 634 is released, the insertion rod 632 moves outward under the pushing of the spring 631, and is clamped with the current clamping hole 635 at the bottom of the ear seat 621, so that the position of the wrench rod 62 is fixed, and the operation is simple and convenient.

[0041] In consideration of disassembling the sleeve 65 to adapt to different bolt head specifications, the end of the wrench rod 62 in the embodiment has a rectangular rod 622, a rectangular slot 651 adapted to the rectangular rod 622 is formed on the end face of the sleeve 65, and through cooperation of the rectangular rod 622 and the rectangular slot 651, self-rotation of the sleeve 65 can be avoided, wherein a positioning glass bead 623 is embedded on the end face of the rectangular rod 622, and a positioning hole 652 adapted to the extension end of the positioning glass bead 623 is formed on the end face of the sleeve 65, that is, through the design of the positioning glass bead 623, convenient disassembly and replacement of the sleeve 65 can be realized, and the adaptability of the tool is greatly improved.

[0042] The above merely describes a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A dismounting tool for a pitch cylinder piston rod cylinder cover, characterized in that, The application relates to a sleeve ring (1) for sleeving on a cylinder cover, wherein a locking member (2) connected with the cylinder cover is arranged on the sleeve ring (1). Two first rods (3) are fixedly connected to the front end of the sleeve ring (1), and the front end of the two first rods (3) is fixedly connected with two second rods (4); At least part of the end of the first rod (3) and the second rod (4) protrudes from the outside of the sleeve ring (1) to form a driving arm (5); The front end of the two first rods (3) is detachably connected with a tool assembly (6) through a clamping member (7).

2. The dismounting tool of claim 1, wherein: The locking member (2) is a bolt arranged on the outside of the sleeve ring (1), and the bolt is threadedly connected with a threaded hole on the cylinder cover.

3. The dismounting tool of claim 1, wherein: The two first rods (3) and the two second rods (4) are distributed along the transverse direction and the longitudinal direction respectively, and jointly form a cross-shaped structure, and the driving arm (5) is formed on the side of the connecting position of the first rod (3) and the second rod (4).

4. The dismounting tool of claim 1, wherein: A support seat (11) is further formed on the end surface of the sleeve ring (1), recesses adapted to the second rods (4) are formed on the end surface of the support seat (11), and the second rods (4) are fixedly connected with the support seat (11).

5. The dismounting tool of claim 1, wherein: The tool assembly (6) comprises a rotating rod (61) and a wrench rod (62) pin-connected to the end of the rotating rod (61), and an angle locking assembly (63) is arranged between the rotating rod (61) and the wrench rod (62); The end of the rotating rod (61) is fixedly provided with a sleeve (64) sleeving the driving arm (5), and the end of the wrench rod (62) is detachably connected with a sleeve (65) sleeving the locking member (2).

6. The dismounting tool of a variable pitch cylinder piston rod cylinder cover according to claim 5, characterized in that: The angle locking assembly (63) comprises an insertion rod (632) movably inserted into the inside of the rotating rod (61) through a spring (631), the end of the rotating rod (61) is provided with a notch, the bottom of the wrench rod (62) is fixedly connected with an ear seat (621), and the ear seat (621) is rotatably connected in the notch through a pin shaft.

7. The dismounting tool of a pitch cylinder piston rod cylinder cover according to claim 6, characterized in that: The top end of the insertion rod (632) extends into the notch, a T-shaped groove (633) is further formed on the end surface of the rotating rod (61), the side of the insertion rod (632) is fixedly connected with a guide shaft (634) sliding in the T-shaped groove (633), the bottom of the ear seat is provided with two clamping holes (635), and the top end of the insertion rod (632) is inserted into the clamping holes (635).

8. The dismounting tool of claim 5, wherein: The end of the wrench rod (62) is provided with a rectangular rod (622), the end surface of the sleeve (65) is provided with a rectangular groove (651) adapted to the rectangular rod (622), the end surface of the rectangular rod (622) is embedded with a positioning glass bead (623), and the end surface of the sleeve (65) is provided with a positioning hole (652) clamped with the extension end of the positioning glass bead (623).

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