Rotor blade polishing protection tool

Abstract

The utility model discloses a rotor blade finishing protection tool, which belongs to the technical field of blade finishing protection equipment and is used for protecting blades. Each blade comprises a blade body, an edge plate and a tenon, and the tenon is provided with a first clamping acting surface facing the edge plate and a second clamping acting surface deviating from the edge plate; the rotor blade polishing protection tool comprises a clamping body. The clamping body comprises a first side plate and a second side plate, the butt joint face of the first side plate and the second side plate is partially concave inwards, after the first side plate and the second side plate are in butt joint, an edge plate groove and a tenon groove are formed in the clamping body, and the edge plate groove is communicated with the tenon groove; a second clamping surface is formed on the groove bottom surface of the tenon groove; first clamping surfaces are respectively formed on two opposite groove walls of the tenon groove; during use, the margin plate is located in the margin plate groove, and the tenon is located in the tenon groove. The first clamping surface is in clearance fit with the first clamping acting surface; the second clamping surface is in clearance fit with the second clamping acting surface; the blade can be stably installed, and polishing of the polished part of the blade can be achieved through one-time clamping.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blade light decoration protection equipment technical field, concretely relates to a rotor blade light decoration protection tool. BACKGROUND

[0002] The surface quality of the aero-engine rotor blade affects the performance, reliability and life of the engine to a great extent, the roughness requirement of the rotor blade is more and more strict at present, the roughness Ra of the blade body and the flow passage surface is generally required to be less than 0.4 microns, the rotor blade needs to be vibrated and light decorated to meet the requirement. The sharp corner often exists on the rim plate surface of the rotor blade, the rim plate sharp corner is easy to collide with other blades in the light decoration process, causes the surface to knock and hurt and even causes the rotor blade part to be scrapped. UTILITY MODEL CONTENTS

[0003] For the problems existing in the prior art, the utility model provides a rotor blade light decoration protection tool, which can not only stably install the blade, but also realize light decoration of the light decoration part of the blade at one time, and avoid the knocking problem.

[0004] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a rotor blade light decoration protection tool for blade protection, the blade includes a blade body, a rim plate and a tenon, the blade body and the tenon are fixedly arranged on two opposite sides of the rim plate respectively, the tenon is provided with a first clamping surface facing the rim plate and a second clamping surface away from the rim plate, the rotor blade light decoration protection tool includes a clamping body, the clamping body includes a first side plate and a second side plate, the first side plate and the second side plate are fixedly connected through a connecting assembly after butt joint, the butt joint surface of the first side plate and the second side plate is partially concave to the inside, the rim plate groove and the tenon groove are formed in the clamping body after the butt joint of the two, the rim plate groove and the tenon groove are communicated, the groove bottom surface of the tenon groove is formed with a second clamping surface, two opposite groove walls of the tenon groove are formed with a first clamping surface respectively, and the two first clamping surfaces are located on the first side plate and the second side plate respectively.

[0006] When in use, the rim plate is located in the rim plate groove, the tenon is located in the tenon groove, the first clamping surface and the first clamping surface form a first gap in clearance fit, and the width of the first gap is 0.1-0.2mm, the second clamping surface and the second clamping surface form a second gap in clearance fit, and the width of the second gap is 0.1-0.2mm.

[0007] In the rotor blade polishing protection tool, the connecting assembly comprises a bolt and a nut; the first side plate is provided with a first connecting hole, and the second side plate is provided with a second connecting hole; the bolt is screwed with the nut after penetrating through the first connecting hole and the second connecting hole.

[0008] In the rotor blade polishing protection tool, the first connecting hole and the second connecting hole are counterbores.

[0009] In the rotor blade polishing protection tool, the counterbore of the second connecting hole is rectangular, and the nut is located in the second connecting hole.

[0010] And / or, the counterbore of the first connecting hole is circular.

[0011] And / or, the bolt is made of stainless steel.

[0012] In the rotor blade polishing protection tool, the rim groove and the tenon groove are symmetrically distributed in the first side plate and the second side plate.

[0013] In the rotor blade polishing protection tool, the material of the clamping body is one of nylon, polyethylene and polypropylene.

[0014] And / or, the first clamping surface is obliquely arranged and faces the tenon groove.

[0015] In the rotor blade polishing protection tool, the rim groove is provided with a clearance hole, the clearance hole extends in the depth direction of the rim groove and is located at the position corresponding to the edge of the rim.

[0016] In the rotor blade polishing protection tool, the upper surface of the clamping body is connected with the first rim end surface of the rim and smoothly transitions.

[0017] In the rotor blade polishing protection tool, a third gap is formed between the groove wall surface of the rim groove and the rim side surface of the rim, and the width of the third gap is 0.3-0.5mm.

[0018] In the rotor blade polishing protection tool, the hardness of the clamping body is less than the hardness of the blade.

[0019] The beneficial effects of the utility model lie in:

[0020] The rotor blade polishing protection tool utilizes the first side plate and the second side plate to form a rim groove and a tenon groove in the clamping body after abutting, and respectively protects the rim of the blade and clamps and fixes the tenon, so that the blade body and the rim surface are effectively prevented from being scratched.

[0021] The rotor blade polishing protection tool can not only stably install the blade, but also can polish the blade polishing part, such as the blade body and the edge plate surface, through one-time clamping, the polishing machine loading capacity is increased by 1 times on the basis of the original, and the polishing efficiency is significantly improved after avoiding the bumping problem;

[0022] The edge plate groove also protects the edge plate acute angle of the blade, and has good protection performance;

[0023] The tool structure is simple, and the parts are convenient to process and replace. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of the blade under the first visual angle;

[0025] Figure 2 It is a structure schematic view of the blade under the second visual angle;

[0026] Figure 3 It is a state schematic view of the rotor blade polishing protection tool when locking the blade;

[0027] Figure 4 It is a structure schematic view of the rotor blade polishing protection tool;

[0028] Figure 5 It is a structure schematic view of the connecting assembly in the rotor blade polishing protection tool;

[0029] Figure 6 It is a matching state schematic view of the blade edge plate, the tenon, the tenon groove and the edge plate groove.

[0030] In the drawings:

[0031] 100-blade; 101-blade body; 102-edge plate; 103-tenon; 104-first edge plate end face; 105-first clamping action surface; 106-second clamping action surface; 107-lug; 108-edge plate side face;

[0032] 200-clamping body; 201-first side plate; 202-edge plate groove; 203-tenon groove; 204-clearance hole; 205-groove wall surface; 206-upper surface; 207-second connecting hole; 208-second side plate; 209-first connecting hole; 210-second clamping surface; 211-first clamping surface;

[0033] 300-connecting assembly; 301-bolt; 302-nut. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in combination with the drawings.

[0035] Please refer to Figure 1 and Figure 2The blade 100 comprises a blade body 101, a rim plate 102 and a tenon 103; the blade body 101 and the tenon 103 are fixedly arranged on two sides of the rim plate 102 respectively; hereinafter, the side of the rim plate 102 connected with the blade body 101 is referred to as a first rim plate end face 104, the side opposite to the first rim plate end face 104 is referred to as a second rim plate end face, and the side of the rim plate 102 outside the four sides is referred to as a rim plate side face 108. The tenon 103 is provided with a first clamping action face 105 and a second clamping action face 106, which are used as clamping action positions during polishing of the blade 100; exemplarily, the end of the tenon 103 away from the rim plate 102 is a free end, and the free end of the tenon 103 is provided with two outward protruding lugs 107, and the two lugs 107 are preferably symmetrically arranged. The first clamping action face 105 and the second clamping action face 106 are respectively located on the opposite sides of the lugs 107, wherein the first clamping action face 105 faces the rim plate 102, and the second clamping action face 106 is away from the rim plate 102. The second clamping action face 106 is the end face of the free end of the tenon 103, and the two second clamping action faces 106 are in the same plane; the first clamping action face 105 is a bevel, one side of the first clamping action face 105 connects the tenon 103, and the other side extends away from the rim plate 102 and away from the tenon 103, and the two first clamping action faces 105 form an "eight" shape.

[0036] The rotor blade polishing protection tool can prevent the blade 100 from being bumped while meeting the polishing requirements of the blade body 101 and the first rim plate end face 104. Figures 3-6 An embodiment of the rotor blade polishing protection tool provided by the utility model comprises a clamping body 200, the clamping body 200 comprises a first side plate 201 and a second side plate 208, and the first side plate 201 and the second side plate 208 are fixedly and detachably connected into an integrated whole through a connecting assembly 300 after being butted. Exemplarily, as shown in the figure, Figure 5 the first side plate 201 is provided with a first connecting hole 209, and the second side plate 208 is provided with a second connecting hole 207; the connecting assembly 300 comprises a bolt 301 and a nut 302; the bolt 301 is screwed with the nut 302 after penetrating through the first connecting hole 209 and the second connecting hole 207. The screwing position of the nut 302 and the bolt 301 can open or lock the first side plate 201 and the second side plate 208.

[0037] Preferably, the first connecting hole 209 and the second connecting hole 207 are counterbores, and the bolt 301 and the nut 302 can be effectively protected by the first connecting hole 209 and the second connecting hole 207 after installation, and the bolt 301 is completely in the first connecting hole 209 and the second connecting hole 207, so that the blade 100 can be prevented from being scratched during polishing. For example, the counterbore of the first connecting hole 209 is circular, the diameter Φc of the counterbore is 12-14 mm, and the depth a of the counterbore is 10-15 mm; the counterbore of the second connecting hole 207 is rectangular, and the nut 302 can be clamped in the second connecting hole 207; wherein the length d of the counterbore is 14-18 mm, the width e of the counterbore is 10-12 mm, and the depth b of the counterbore is 10-15 mm.

[0038] Please refer to Figure 3 、 Figure 4 and Figure 5 , the abutting surfaces of the first side plate 201 and the second side plate 208 are partially recessed inward, so that the rim groove 202 and the tenon groove 203 are formed in the clamping body 200 after the abutting surfaces are completely abutted, and the rim groove 202 and the tenon groove 203 are communicated. The rim groove 202 cooperates with the rim 102, and the tenon groove 203 cooperates with the tenon 103, which together fix and protect the blade 100. The rim groove 202 and the tenon groove 203 are preferably symmetrical with respect to the abutting surfaces of the first side plate 201 and the second side plate 208, and are symmetrically distributed in the first side plate 201 and the second side plate 208. The first connecting hole 209 and the second connecting hole 207 are both away from the area where the rim groove 202 and the tenon groove 203 are located.

[0039] The groove wall surface 205 of the rim groove 202 is gap-fitted with the rim side surface 108, and the third gap is formed between the groove wall surface 205 and the rim side surface 108, and the width of the third gap is usually 0.3-0.5 mm. The upper surface 206 of the clamping body 200 is in abutment with and smoothly transitions to the first rim end surface 104; the upper surface 206 of the clamping body 200 is in height with the first rim end surface 104 at adjacent positions, which can prevent the blade 100 from being bumped and can also allow the entire first rim end surface 104 to be polished.

[0040] Further, the rim groove 202 is provided with a clearance hole 204 corresponding to the position of the sharp corner of the rim 102, and the clearance hole 204 extends in the depth direction of the rim groove 202. For example, the rim 102 is a rectangular plate having four edges; the rim groove 202 is provided with four clearance holes 204, which can ensure that the rim 102 is smoothly placed in the rim groove 202, and can effectively protect the sharp corners of the rim 102. Usually, the diameter of the clearance hole 204 is Φ4-Φ6 mm.

[0041] The tenon groove 203 fixes the blade 100 by clamping the tenon 103 to restrict the degree of freedom of the blade 100. The two opposite groove walls of the tenon groove 203 are respectively provided with first clamping surfaces 211, which are located on the first side plate 201 and the second side plate 208. When the first side plate 201 and the second side plate 208 move closer or further apart, the two first clamping surfaces 211 also move closer or further apart. Preferably, the width of the tenon groove 203 gradually increases in the depth direction; that is, the cross-section of the tenon groove 203 is similar to... Figure 6 The trapezoidal shape shown has two first clamping surfaces 211 that are inclined and opposite to each other, facing the bottom surface of the tenon groove 203, forming a shape similar to the number "8". The two first clamping surfaces 211 correspond to the two first clamping action surfaces 105 of the tenon 103. The first clamping surfaces 211 and 105 are fitted together with a clearance to form a first gap, typically with a width of 0.1–0.2 mm. The bottom surface of the tenon groove 203 forms a second clamping surface 210, which is fitted together with the second clamping action surface 106 of the tenon 103 with a clearance to form a second gap, typically with a width of 0.1–0.2 mm.

[0042] When in use, first ensure that the first side panel 201 and the second side panel 208 are separated and in the open position;

[0043] Then place the tenon 103 of the blade 100 into the tenon groove 203 of the first side plate 201, and align the tenon groove 203 of the second side plate 208 with the tenon 103 of the blade 100, and install the second side plate 208.

[0044] Finally, tighten the first side plate 201 and the second side plate 208. Specifically, insert the nut 302 into the second connecting hole 207 of the second side plate 208 and lock it in place; pass the bolt 301 through the first side plate 201 and the second side plate 208 and connect it with the nut 302.

[0045] Finally, tighten bolt 301; during the tightening process, the first side plate 201 and the second side plate 208 gradually approach each other, and the first gap and the second gap gradually decrease. When the first side plate 201 and the second side plate 208 contact each other, the first gap and the second gap reach their minimum values. At this time, the tenon 103 part of the blade 100 can be effectively fixed.

[0046] Since the first clamping surface 105 and the first clamping surface 211 are both inclined surfaces and face the second clamping surface 210, two forces can be applied on the blade 100, one of which is perpendicular to the length direction of the blade 100, and the other is parallel to the length direction of the blade 100. In the direction perpendicular to the length direction of the blade 100, the force directions of the two first clamping surfaces 105 are opposite, and the clamping in this direction is completed; in the direction parallel to the length direction of the blade 100, the force directions of the two first clamping surfaces 105 are the same, and the second clamping surface 106 of the tenon 103 faces the second clamping surface 210, which cooperates with the force applied on the second clamping surface 106 by the second clamping surface 210, so as to stably clamp the blade 100. The length direction of the tenon groove 203 is preferably closed at both ends, so as to close the tenon 103 in the tool.

[0047] During polishing, the combination of the tool and the blade 100 is placed in a polishing machine; after polishing, the bolt 301 is loosened to remove the blade 100.

[0048] Further, the hardness of the clamping body 200 is preferably less than that of the blade 100, so as not to cause damage to the blade 100 during protection; and the clamping body 200 can be made of nylon, polyethylene, polypropylene or the like. The bolt 301 is made of stainless steel, which will not rust in the polishing medium, and can avoid pollution to the blade 100.

[0049] The above only describes preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotor blade finishing protection tool for protecting a blade (100); the blade (100) comprises a blade body (101), a shroud (102) and a tenon (103), the blade body (101) and the tenon (103) are fixedly arranged on two opposite sides of the shroud (102) respectively; the tenon (103) is provided with a first clamping surface (105) facing the shroud (102) and a second clamping surface (106) facing away from the shroud (102); characterized in that, The rotor blade light decoration protection tool comprises a clamping body (200); the clamping body (200) comprises a first side plate (201) and a second side plate (208), which are fixedly connected through a connecting assembly (300) after being butted; the butt surfaces of the first side plate (201) and the second side plate (208) are partially concave to the inside, and form a rim plate groove (202) and a tenon groove (203) in the clamping body (200) after being butted, wherein the rim plate groove (202) and the tenon groove (203) are communicated; the groove bottom surface of the tenon groove (203) is formed with a second clamping surface (210); the two opposite groove walls of the tenon groove (203) are respectively formed with a first clamping surface (211), and the two first clamping surfaces (211) are respectively located on the first side plate (201) and the second side plate (208); In use, the rim plate (102) is located in the rim plate groove (202), and the tenon (103) is located in the tenon groove (203); the first clamping surface (211) and the first clamping surface (105) are gap-fitted to form a first gap, and the width of the first gap is 0.1-0.2 mm; the second clamping surface (210) and the second clamping surface (106) are gap-fitted to form a second gap, and the width of the second gap is 0.1-0.2 mm.

2. A rotor blade fairing protection tool as defined in claim 1, wherein, The connecting assembly (300) comprises a bolt (301) and a nut (302); the first side plate (201) is provided with a first connecting hole (209), and the second side plate (208) is provided with a second connecting hole (207); the bolt (301) is screwed with the nut (302) after penetrating through the first connecting hole (209) and the second connecting hole (207).

3. A rotor blade fairing protection tool as defined in claim 2, wherein, The first connecting hole (209) and the second connecting hole (207) are countersunk holes.

4. A rotor blade fairing protection tool as defined in claim 3, wherein, The countersunk hole of the second connecting hole (207) is rectangular, and the nut (302) is located in the second connecting hole (207); And / or, the countersunk hole of the first connecting hole (209) is circular; And / or, the bolt (301) is made of stainless steel.

5. A rotor blade fairing protection tool as defined in claim 1, wherein, The rim plate groove (202) and the tenon groove (203) are symmetrically distributed in the first side plate (201) and the second side plate (208).

6. A rotor blade fairing protection tool as defined in claim 1, wherein, The material of the clamping body (200) is one of nylon, polyethylene and polypropylene; And / or, the first clamping surface (211) is obliquely arranged and faces the tenon groove (203).

7. A rotor blade fairing protection tool as defined in claim 1, wherein, The rim plate groove (202) is provided with a clearance hole (204) extending in the depth direction of the rim plate groove (202) and corresponding to the edge of the rim plate (102).

8. A rotor blade fairing protection tool as defined in claim 1, wherein, The upper surface (206) of the clamping body (200) is connected with the first rim plate end surface (104) of the rim plate (102) and smoothly transitions.

9. A rotor blade fairing protection tool as defined in claim 1, wherein, A third gap is formed between a groove wall surface (205) of the rim plate groove (202) and a rim plate side surface (108) of the rim plate (102), and the width of the third gap is 0.3-0.5 mm.

10. A rotor blade fairing protection tool as defined in claim 1, wherein, The hardness of the clamping body (200) is less than the hardness of the blade (100).

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