CN215093249U

CN215093249U - Special-shaped spanner

Info

Publication number: CN215093249U
Application number: CN202121404929.2U
Authority: CN
Inventors: 张锦; 冯福志; 刘文山; 毛小明; 安海重; 欧世兴
Original assignee: China National Offshore Oil Corp CNOOC; CNOOC China Ltd Zhanjiang Branch; CNOOC China Ltd Hainan Branch
Current assignee: China National Offshore Oil Corp CNOOC; CNOOC China Ltd Zhanjiang Branch; CNOOC China Ltd Hainan Branch
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-10
Anticipated expiration: 2031-06-22

Abstract

The utility model relates to a hardware and hardware technical field, more specifically relates to a special-shaped spanner. The utility model provides a special-shaped spanner, includes work portion, connecting rod and action bars, work portion includes interconnect's holder and connecting piece, be provided with open structure on the holder, the one end of connecting rod with the connecting piece links to each other, the other end of connecting rod with the action bars links to each other, the axial lead of connecting rod with contained angle between the plane at connecting piece place is A, and contained angle A's scope is 85 to 95, the axial lead of action bars with contained angle between the axial lead of connecting rod is B, and contained angle B's scope is 85 to 95, the contained angle of action bars between the planar projection at connecting piece place and the axial lead of connecting piece is obtuse angle C. The special-shaped wrench is simple in structure and convenient to operate, can quickly solve the problem that the rotatable guide vanes are blocked or are not smooth to move, and improves the maintenance efficiency of equipment.

Description

Special-shaped spanner

Technical Field

The utility model relates to a hardware and hardware technical field, more specifically relates to a special-shaped spanner.

Background

The problem that the air inlet rotatable guide vane of the rope-drawing gas turbine is stuck frequently occurs when the unit runs for too long time, and particularly the problem that the air inlet rotatable guide vane of the rope-drawing gas turbine is stuck after the unit runs for more than 2 ten thousand hours is more obvious. The rotatable guide vane is blocked to cause that the unit can not be used normally, the performance is seriously reduced, and the unit blade can be broken when the performance is serious. Therefore, a need exists for a tool for addressing the problem of a stuck or poorly moving blade returning to normal operation. The Chinese patent application, publication number is: CN205342932U discloses a practical special-shaped wrench, which includes a quincunx head, a bent head portion and a force arm rod, wherein the quincunx head is located at the head of the special-shaped wrench, the head has a polygonal cavity for sleeving and pulling a pipe joint, the front end of the quincunx head is provided with a notch deep into the polygonal cavity, the bent head portion is in a right angle shape, one end of the bent head portion is connected with the upper portion of the quincunx head, the other end of the bent head portion is connected with the force arm rod, and the longitudinal direction of the force arm rod is perpendicular to the axial direction of the quincunx head. However, the special-shaped wrench still cannot extend into the position of the rotatable guide vane, and the blocked or unsmooth moving blade cannot be recovered to the normal working state.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art's special-shaped spanner can't stretch into to rotatable stator department, can't make the card die or the not smooth problem that recovers normal operating condition of activity's blade, provide a special-shaped spanner.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a special-shaped spanner, includes work portion, connecting rod and action bars, work portion includes interconnect's holder and connecting piece, be provided with open structure on the holder, the one end of connecting rod with the connecting piece links to each other, the other end of connecting rod with the action bars links to each other, the axial lead of connecting rod with contained angle between the plane at connecting piece place is A, and contained angle A's scope is 85 to 95, the axial lead of action bars with contained angle between the axial lead of connecting rod is B, and contained angle B's scope is 85 to 95, the contained angle of action bars between the planar projection at connecting piece place and the axial lead of connecting piece is obtuse angle C.

In the technical scheme, under the condition that the air inlet rotatable guide vane of the cable-stayed gas turbine is blocked or moves unsmoothly, the inner hexagonal stop nail is firstly loosened, the transmission steel sheet is moved away, then the connecting rod extends into the side of the rotatable guide vane, the opening structure on the clamping piece is clamped at the root of the rotatable guide vane, then the root of the rotatable guide vane is used as the center of a circle, external force is applied to the operating rod, and the lever principle is utilized to orient the rotatable guide vane which is blocked or moves unsmoothly in the activity, so that the rotatable guide vane is recovered to the normal state. The special-shaped wrench is simple in structure and convenient to operate, can quickly solve the problem that the rotatable guide vanes are blocked or are not smooth to move, and improves the maintenance efficiency of equipment.

Preferably, the obtuse angle C ranges from 115 ° to 125 °.

Preferably, the obtuse angle C is 120 °.

Preferably, the opening direction of the opening structure is perpendicular to the axis line of the connecting piece.

Preferably, the included angle between the connecting piece and the axis of the connecting rod is A, and the included angle A is 90 degrees.

Preferably, the clamping piece is of a circular arc structure.

Preferably, the clamping member is integrally formed with the connecting member.

Preferably, the angle B is 90 °.

Preferably, the connecting rod and the operating rod are both rod-shaped structures.

Preferably, an anti-slip structure is provided on a circumferential surface of the operating lever.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in, but the rotatory stator card of cable-stayed gas turbine air inlet is died or under the not smooth condition of activity, at first loosens interior hexagonal locking nail, puts aside the transmission steel sheet, then stretches into the connecting rod and can change the stator side, utilizes the open structure card on the holder to block the root that can change the stator, uses the root that can change the stator again as the centre of a circle, applys external force on the action bars, utilizes lever principle, and the directional activity card is died or can change the stator that the activity is not smooth, makes this can change the stator and resume normal condition. The special-shaped wrench is simple in structure and convenient to operate, can quickly solve the problem that the rotatable guide vanes are blocked or are not smooth to move, and improves the maintenance efficiency of equipment.

Drawings

FIG. 1 is a perspective view of the special-shaped wrench of the present invention;

FIG. 2 is a front view of the special-shaped wrench of the present invention;

fig. 3 is a top view of the special-shaped wrench of the present invention.

In the drawings: 1. a working part; 2. a connecting rod; 3. an operating lever; 4. an open structure; 11. a clamping member; 12. a connecting member.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1 to 3, a special-shaped wrench, including a working portion 1, a connecting rod 2 and an operating rod 3, the working portion 1 includes a clamping piece 11 and a connecting piece 12 connected to each other, an opening structure 4 is provided on the clamping piece 11, one end of the connecting rod 2 is connected to the connecting piece 12, the other end of the connecting rod 2 is connected to the operating rod 3, an included angle between an axis of the connecting rod 2 and a plane where the connecting piece 12 is located is a, the included angle a is 85 ° to 95 °, an included angle between an axis of the operating rod 3 and an axis of the connecting rod 2 is B, the included angle B is 85 ° to 95 °, and an included angle between a projection of the operating rod 3 on the plane where the connecting piece 12 is located and an axis of the connecting piece 12 is an obtuse angle C. In this embodiment, when the cable-stayed gas turbine has the dead-locked or unsmooth-movement rotatable guide vane, the inner hexagonal locking nail is firstly loosened, the transmission steel sheet is removed, the connecting rod 2 is then inserted into the side of the rotatable guide vane, the opening structure 4 on the clamping piece 11 is clamped at the root of the rotatable guide vane, then the root of the rotatable guide vane is used as the center of a circle, external force is applied to the operating rod 3, and the lever principle is utilized to orient the rotatable guide vane which is dead-locked or unsmooth-movement in movement, so that the rotatable guide vane is recovered to a normal state. The special-shaped wrench is simple in structure and convenient to operate, can quickly solve the problem that the rotatable guide vanes are blocked or are not smooth to move, and improves the maintenance efficiency of equipment.

It should be noted that an included angle between the axis of the connecting rod 2 and the plane of the connecting piece 12 is a, and the included angle a ranges from 85 ° to 95 °, so that the connecting rod 2 is extended to the side of the rotatable guide vane, and the opening structure 4 on the connecting piece 12 is clamped at the root of the rotatable guide vane. The included angle between the axial lead of the operating rod 3 and the axial lead of the connecting rod 2 is B, the included angle B ranges from 85 degrees to 95 degrees, the included angle between the projection of the axial lead of the operating rod 3 on the plane where the connecting piece 12 is located and the connecting piece 12 is an obtuse angle C, when the opening structure 4 is clamped at the root of the rotatable guide vane, external force is applied to the operating rod 3 to form the principle of a lever, the rotatable guide vane which is blocked or not moved freely can be directionally moved, and the rotatable guide vane which is blocked or not moved freely can be quickly and laborsavingly recovered to a normal working state. Furthermore, it should be noted that the size and shape of the opening structure 4 need to be adapted to the root of the rotatable vane. In the present embodiment, the opening structure 4 is frame-shaped, but is not limited to this shape, and other shapes that can be caught at the root of the rotatable vane are also within the protection scope. The connecting rod 2 and the operating rod 3 are in a strip structure, the connecting rod 2 and the connecting piece 12 can be connected in a fixed connection mode, the end parts of the connecting rod 2 and the operating rod 3 can also be connected in a fixed connection mode, and the fixed connection mode can be welding or other fixed connection modes. The clamping member 11 and the connecting member 12 may be connected by welding. It should be noted that the clamping member 11 is a block structure, the connecting member 12 is a strip structure, and the working surfaces of the clamping member 11 and the connecting member 12 are in the same plane.

Wherein the obtuse angle C ranges from 115 ° to 125 °. The obtuse angle C is preferably 120 °.

In addition, the opening direction of the opening structure 4 is perpendicular to the axis line of the connecting member 12. In this embodiment, when opening structure 4 card at the root of rotatable stator, exert external force to action bars 3, action bars 3 drive connecting rod 2 rotatory, and connecting rod 2 drives the connecting piece 12 rotation rather than linking to each other to can realize taking the root of rotatable stator as the centre of a circle, the dead or unsmooth rotatable stator that moves about of directional activity card resumes to normal operating condition. It should be noted that when the connecting piece 12 extends into the side of the rotatable guide vane, the opening structure 4 on the clamping piece 11 can be conveniently clamped on the root of the rotatable guide vane.

Wherein, the included angle between the connecting piece 12 and the axial lead of the connecting rod 2 is A, and the included angle A is 90 degrees. In this embodiment, the connecting rod 2 is perpendicular to the connecting member 12, which is beneficial for the connecting rod 2 to drive the connecting member 12 to rotate under the action of the rotating force of the operating rod 3.

In addition, the clamping piece 11 is of a circular arc structure. When the connecting rod 2 extends into the side of the rotatable guide vane, the opening structure 4 is clamped at the root of the rotatable guide vane, the periphery of the clamping piece 11 with the arc-shaped structure is more smooth, and the collision contact probability between the clamping piece 11 and the peripheral parts of the rotatable guide vane can be reduced.

Wherein the clamping member 11 is integrally formed with the connecting member 12.

In addition, the included angle B is 90 °. When external force is applied to the operating rod 3, the external force applied to the operating rod 3 is favorably converted into torque to the connecting rod 2 because the operating rod 3 is perpendicular to the connecting rod 2.

Wherein, the connecting rod 2 and the operating rod 3 are both rod-shaped structures. The connecting rod 2 is a rod-shaped structure, so that the connecting rod 2 can be conveniently stretched into the rotatable guide vane side, the operating rod 3 is of a rod-shaped structure, and external force is applied to the operating rod 3 by utilizing the rod-shaped structure.

Wherein, the circumferential surface of the operating rod 3 is provided with an anti-skid structure. When an external force is applied to the operation lever 3, the friction between the hand of the user and the operation lever 3 can be increased, and the slip phenomenon can be avoided.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A special-shaped spanner is characterized in that: comprises a working part (1), a connecting rod (2) and an operating rod (3), wherein the working part (1) comprises a clamping piece (11) and a connecting piece (12) which are connected with each other, an opening structure (4) is arranged on the clamping piece (11), one end of the connecting rod (2) is connected with the connecting piece (12), the other end of the connecting rod (2) is connected with the operating rod (3), the included angle between the axis of the connecting rod (2) and the plane where the connecting piece (12) is located is A, the range of the included angle A is 85-95 degrees, the included angle between the axial lead of the operating rod (3) and the axial lead of the connecting rod (2) is B, the range of the included angle B is 85-95 degrees, the included angle between the projection of the operating rod (3) on the plane where the connecting piece (12) is located and the axis of the connecting piece (12) is an obtuse angle C.

2. The profile wrench as claimed in claim 1, wherein: the obtuse angle C ranges from 115 ° to 125 °.

3. The profile wrench as claimed in claim 2, wherein: the obtuse angle C is 120 °.

4. The impact wrench as claimed in any one of claims 1 to 3, wherein: the opening direction of the opening structure (4) is perpendicular to the axis of the connecting piece (12).

5. The profile wrench as claimed in claim 4, wherein: the included angle between the connecting piece (12) and the axial lead of the connecting rod (2) is A, and the included angle A is 90 degrees.

6. The profile wrench as claimed in claim 4, wherein: the clamping piece (11) is of an arc-shaped structure.

7. The profile wrench as claimed in claim 4, wherein: the clamping piece (11) and the connecting piece (12) are integrally formed.

8. The profile wrench as claimed in claim 1, wherein: the included angle B is 90 °.

9. The profile wrench as claimed in claim 1, wherein: the connecting rod (2) and the operating rod (3) are both rod-shaped structures.

10. The profile wrench as claimed in claim 9, wherein: the circumferential surface of the operating rod (3) is provided with an anti-skid structure.