CN216883739U

CN216883739U - Special tool for taking out positioning pin on matching surface of mechanical equipment

Info

Publication number: CN216883739U
Application number: CN202120144397.7U
Authority: CN
Inventors: 程勇; 程子岩; 牛文合; 王炎虎; 兰洋; 解凤强; 王爱彪; 刘新
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2022-07-05
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a special tool for taking out a positioning pin on the matching surface of mechanical equipment, which comprises a guide torque nut piece, a bolt piece and a support piece, wherein the guide torque nut piece consists of a hexagonal pipe, a circular ring baffle and a bottom circular pipe which are sequentially and fixedly connected from top to bottom, an inner circular groove penetrating through the hexagonal pipe, the circular ring baffle and the bottom circular pipe is arranged in the middle of the guide torque nut piece, the bolt piece consists of a hexagonal head column, a middle column and a bottom column which are sequentially and fixedly connected from top to bottom, a middle thread is arranged on the middle column, a bottom thread is arranged on the bottom column, a top circular hole is arranged at the top of the support piece, two side grooves are arranged on the side wall of the support piece, and the guide torque nut piece is arranged on the support piece. The utility model has the following advantages: structural design is reasonable, and the cost of manufacture is low, and the convenience is taken out the locating pin, can effectively save the dismantlement process, has fine popularization prospect.

Description

Special tool for taking out positioning pin on matching surface of mechanical equipment

Technical Field

The utility model relates to a special tool for taking out a positioning pin on a matching surface of mechanical equipment.

Background

Because the existing oil refining chemical plant is mostly repaired once in 3-5 years, the positioning pin of some mechanical equipment fitting surfaces is difficult to take out the taper pin due to reasons such as environmental factors, temperature difference and fitting precision, especially the positioning pin of the fitting surface of the high-temperature equipment shell is difficult to take out (such as an axial flow fan of a catalytic three-unit, the positioning taper pin is difficult to take out), and the positioning pin is difficult to take out: 1.1 because the locating pin is longer, fall into the dust in the gap, debris jam clearance. 1.2 because of the change of environmental factors (such as humidity and temperature difference), the surface of the taper pin is chemically changed, and the normal clearance for taking out the locating pin is influenced. 1.3 the taper pin is difficult to take out due to vibration of equipment, other equipment faults (such as joint surface leakage) and the like. The construction period is prolonged due to the fact that the positioning pin is taken, and meanwhile, hidden dangers are brought to safe production and civilized maintenance due to an unreasonable pin pulling method. Therefore, a special tool for taking out the positioning pin of the mechanical equipment matching surface is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the background technology and provides a special tool for taking out a positioning pin on the matching surface of mechanical equipment.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a special tool for taking out a positioning pin on the matching surface of mechanical equipment comprises a guiding torque nut piece, a bolt piece and a support piece, wherein the guiding torque nut piece consists of a hexagonal pipe, a circular ring baffle and a bottom circular pipe which are sequentially and fixedly connected from top to bottom, an inner circular groove penetrating through the hexagonal pipe, the circular ring baffle and the bottom circular pipe is arranged in the middle of the guiding torque nut piece, the bolt piece consists of a hexagonal head column, a middle column and a bottom column which are sequentially and fixedly connected from top to bottom, a middle thread is arranged on the middle column, a bottom thread is arranged on the bottom column, a top circular hole is arranged at the top of the support piece, two side grooves are arranged on the side wall of the support piece, the guiding torque nut piece is arranged on the support piece, the bottom circular pipe is positioned in the support piece, and the circular ring baffle is arranged on the support piece, the guide torque nut piece is sleeved outside the middle thread of the middle column.

Preferably, the middle thread is an M16 standard thread, the bottom thread is an M10 standard thread, and the diameter of the inner circular groove is the same as the outer diameter of the middle thread.

Preferably, the hexagonal head column has an outer diameter of 10 mm.

Preferably, the outer diameter of the hexagonal pipe is 19mm, and the outer diameter of the circular ring baffle is 32 mm.

Preferably, the outer diameter of the bottom barrel is 0.15-0.20mm smaller than the diameter of the top circular hole of the support member.

The utility model has the following advantages: structural design is reasonable, and the cost of manufacture is low, and the convenience is taken out the locating pin, can effectively save the dismantlement process, has fine popularization prospect.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic diagram of a pilot torque nut member.

Fig. 3 is a schematic view of the structure of the bolt member.

Fig. 4 is a schematic structural view of the support member.

As shown in the figure: 1. the guide torque nut piece comprises a guide torque nut piece 2, a bolt piece 3, a support piece 4, a hexagonal pipe 5, a circular ring baffle 6, a bottom circular pipe 7, an inner circular groove 8, a hexagonal head column 9, a middle column 10, a bottom column 11, a middle thread 12, a bottom thread 13, a top circular hole 14, a side groove 15 and a taper pin.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings.

Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

With reference to the attached drawings, the special tool for taking out the positioning pin on the matching surface of the mechanical equipment comprises a guide torque nut member 1, a bolt member 2 and a support member 3, wherein the guide torque nut member 1 is composed of a hexagonal pipe 4, a circular ring baffle 5 and a bottom circular pipe 6 which are sequentially and fixedly connected from top to bottom, an inner circular groove 7 penetrating through the hexagonal pipe 4, the circular ring baffle 5 and the bottom circular pipe 6 is arranged in the middle of the guide torque nut member 1, the bolt member 2 is composed of a hexagonal head column 8, a middle column 9 and a bottom column 10 which are sequentially and fixedly connected from top to bottom, a middle thread 11 is arranged on the middle column 9, a bottom thread 12 is arranged on the bottom column 10, a top circular hole 13 is arranged at the top of the support member 3, two side grooves 14 are arranged on the side wall of the support member 3, and the guide torque nut member 1 is installed on the support member 3, the bottom circular tube 6 is positioned in the support member 3, the circular ring baffle 5 is arranged on the support member 3, and the guide torque nut member 1 is sleeved outside the middle thread 11 of the middle column 9.

Preferably, the middle thread 11 is an M16 standard thread, the bottom thread 12 is an M10 standard thread, and the diameter of the inner circular groove 7 is the same as the outer diameter of the middle thread 11.

Preferably, the hexagonal head post 8 has an outer diameter of 10 mm.

Preferably, the outer diameter of the hexagonal pipe 4 is 19mm, and the outer diameter of the ring baffle 5 is 32 mm.

Preferably, the outer diameter of the bottom barrel 6 is 0.15-0.20mm smaller than the diameter of the top circular hole 13 of the support 3.

When the method is implemented, firstly, the support piece is selected according to the diameter of the taper pin 15, the method is installed on the taper pin, and the bolt piece is tightened on the taper pin. The taper pin can be smoothly pulled out by slowly and clockwise rotating the guiding torque nut piece by using a 19mm spanner matched with the hexagonal pipe.

The working principle of the utility model is as follows: the outer diameter of the bottom circular tube is 0.15-0.20mm smaller than that of the top circular hole of the support member, and a gap which is needed for freely rotating the guide torque nut member to generate upward torque is arranged between the bottom circular tube and the top circular hole, and the guide function is achieved. Since the pilot torque nut member is run on an M16 pitch track, the torque is only a clearance fit in the bore of the support member, and is supported without pressure on the top of the support member, the pilot torque nut member is free to spin and generates an opposing torque on the tightening force of the taper pin.

When the positioning pin is used, a downward tightening force is firstly given to the positioning pin to be matched with the positioning hole of the joint surface, so that the positioning effect is achieved, particularly, the downward tightening force of the taper pin is important, otherwise, the effect cannot be achieved. Therefore, the taper pin can be pulled out only by generating an upward torque when the taper pin is taken out. Through analytical research, the principle of locking by utilizing reverse torque generated by fastening threads is required. To generate the upward torque, a screw capable of forming the torque and a nut and a support piece matched with the screw are firstly arranged, and the screw is used for resisting the upward torque from the taper pin when the taper pin is pulled out.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. The utility model provides a specialized tool is taken out to mechanical equipment fitting surface locating pin which characterized in that: comprises a guiding torque nut piece, a bolt piece and a supporting piece, wherein the guiding torque nut piece consists of a hexagonal tube, a circular ring baffle and a bottom circular tube which are sequentially and fixedly connected from top to bottom, the middle part of the guiding torque nut piece is provided with an inner circular groove which penetrates through the hexagonal pipe, the circular ring baffle and the bottom circular pipe, the bolt piece consists of a hexagonal head column, a middle column and a bottom column which are fixedly connected from top to bottom in sequence, the middle column is provided with middle threads, the bottom column is provided with bottom threads, the top of the support member is provided with a top round hole, two side grooves are arranged on the side wall of the supporting piece, the guiding torque nut piece is arranged on the supporting piece, the bottom circular tube is positioned in the supporting piece, the circular ring baffle is arranged on the supporting piece, and the guide torque nut piece is sleeved outside the middle thread of the middle column.

2. The special tool for taking out the positioning pin of the matching surface of the mechanical equipment, according to claim 1, is characterized in that: the middle thread is an M16 standard thread, the bottom thread is an M10 standard thread, and the diameter of the inner circular groove is the same as the outer diameter of the middle thread.

3. The special tool for taking out the positioning pin of the mechanical equipment matching surface according to claim 2, is characterized in that: the outer diameter of the hexagonal head column is 10 mm.

4. The special tool for taking out the positioning pin of the matching surface of the mechanical equipment, according to claim 3, is characterized in that: the external diameter of hexagonal pipe is 19mm, the external diameter of ring baffle is 32 mm.

5. The special tool for taking out the positioning pin of the matching surface of the mechanical equipment as claimed in claim 4, wherein: the outer diameter of the bottom circular tube is 0.15-0.20mm smaller than the diameter of the top circular hole of the support piece.