Drilling mould for fan coal mill connecting beam

Abstract

The utility model discloses a drilling mould for a connecting beam of a fan coal mill, which relates to the field of drilling moulds, and comprises a positioning seat body and a plurality of top seat components, and one end of the connecting beam is clamped on the positioning seat body; the multiple top seat assemblies are arranged on the top face of the positioning seat body and abut against the other end of the connecting beam. A plurality of positioning holes are formed in the middle of the top surface of the positioning seat body; the positioning seat body comprises a positioning seat, positioning tables are arranged on the upper side face and the lower side face of one end of the positioning seat respectively, the connecting beam is arranged on the top face of the positioning seat, and the other end of the connecting beam abuts against the positioning tables. The multiple positioning holes are formed in the middle of the top face of the positioning base. According to the utility model, the clamping is convenient, the production efficiency is improved, and the processing cost and the operation difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling jigs, in particular to a drilling jig used for a fan coal mill connecting beam. Background Art

[0002] The fan coal mill used in the pulverizing system of coal-fired power generation units is the main equipment of the direct-blowing pulverizing system of lignite-fired boiler units in thermal power plants. It can simultaneously complete the grinding, drying and transportation of coal.

[0003] The fan coal mill can crush and grind raw coal to improve the combustion efficiency of coal. It is an important pulverizing equipment. The fan coal mill has the characteristics of stable operation and mature design, and is widely used in cement, power generation, mining and other industries. The connecting beam, as the core component of the fan mill, plays a key role in connecting the front and rear discs. Therefore, the processing accuracy of the connecting beam plays a vital role in the stability and reliability of the fan mill operation.

[0004] At present, the processing of holes on the end faces of the connecting beams of fan coal mills is mostly done by machining centers or by marking and drilling one by one. These two methods are difficult to operate, time-consuming, and costly.

[0005] Therefore, those skilled in the art provide a drilling jig for a fan coal mill connecting beam to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0006] The utility model provides a drilling jig for a fan coal mill connecting beam, which can realize the processing of connecting beam positioning holes using an ordinary bench drill, optimizes and simplifies the marking process, effectively reduces the processing cost, improves the processing efficiency and reduces the operating difficulty.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model discloses a drilling jig for a fan coal mill connecting beam, comprising:

[0009] A positioning seat body, one end of the connecting beam is clamped on the positioning seat body;

[0010] A plurality of top seat components, wherein the plurality of top seat components are arranged on the top surface of the positioning seat body, and the plurality of top seat components are tightly pressed against the other end of the connecting beam;

[0011] A plurality of positioning holes are provided in the middle of the top surface of the positioning seat body.

[0012] Furthermore, the positioning seat body includes a positioning seat, and positioning platforms are respectively provided on the upper and lower side surfaces of one end of the positioning seat, a connecting beam is provided on the top surface of the positioning seat, and the other end of the connecting beam rests on the positioning platform; a plurality of the positioning holes are opened in the middle of the top surface of the positioning seat.

[0013] Furthermore, a tool withdrawal groove is provided on the positioning platform at a position close to the connecting beam.

[0014] Furthermore, a steel sleeve is arranged in each positioning hole.

[0015] Furthermore, the top seat assembly includes a top seat, which is installed on a side of the positioning seat away from the positioning platform. The top seat is provided with a tightening bolt threadedly connected thereto, and the end of the tightening bolt close to the positioning seat can tighten the connecting beam.

[0016] In the above technical solution, the utility model provides a drilling jig for the fan coal mill connecting beam, which has the following beneficial effects: convenient clamping, improved production efficiency, reduced processing costs and operating difficulty. At the same time, the utility model can ensure the relative position of the positioning hole for processing the connecting beam, and this design greatly improves the processing accuracy and improves the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A front view of a drilling jig for a fan coal mill connecting beam provided in an embodiment of the utility model;

[0019] Figure 2 A top view of a drilling jig for a fan coal mill connecting beam provided in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 10. Positioning seat body; 20. Connecting beam; 30. Top seat assembly;

[0022] 11. Positioning hole; 12. Positioning seat; 13. Positioning platform; 14. Back-cut groove; 15. Steel sleeve;

[0023] 31. Top seat; 32. Tightening bolts. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1-2 As shown;

[0026] The drilling jig for a fan coal mill connecting beam according to an embodiment of the utility model comprises:

[0027] A positioning seat body 10, one end of the connecting beam 20 is clamped on the positioning seat body 10;

[0028] A plurality of top seat components 30, wherein the plurality of top seat components 30 are disposed on the top surface of the positioning seat body 10, and the plurality of top seat components 30 are tightly pressed against the other end of the connecting beam 20;

[0029] A plurality of positioning holes 11 are formed in the middle of the top surface of the positioning seat body 10 .

[0030] Furthermore, the positioning seat body 10 includes a positioning seat 12, and a positioning platform 13 is respectively provided on the upper and lower side surfaces of one end of the positioning seat 12, a connecting beam 20 is provided on the top surface of the positioning seat 12, and the other end of the connecting beam 20 rests on the positioning platform 13; a plurality of the positioning holes 11 are opened in the middle of the top surface of the positioning seat 12.

[0031] Furthermore, a tool-retracting groove 14 is provided on the positioning platform 13 near the connecting beam 20 to eliminate the round chamfer left during the machining process to ensure that the mold and the connecting beam 20 fit closely.

[0032] Furthermore, a steel sleeve 15 is provided in each of the positioning holes 11 , and the steel sleeve 15 is used to accurately position the drilling holes of the connecting beam 20 and improve the durability of the drilling jig.

[0033] Furthermore, the top seat assembly 30 includes a top seat 31, and the top seat 31 is installed on a side of the positioning seat 12 away from the positioning platform. The top seat 31 is provided with a tightening bolt 32 threadedly connected to it, and the end of the tightening bolt 32 close to the positioning seat 12 can tighten the connecting beam 20. By tightening the tightening bolt 32, a rightward clamping force can be applied to the connecting beam 20 to prevent displacement between the drilling jig and the connecting beam.

[0034] When in use, the connecting beam 20 is fixed on the operating table with the clamp provided by the drilling machine, the positioning seat 12 is placed on the connecting beam 20, the tightening bolt 32 of the top seat assembly 30 is rotated to make the connecting beam 20 close to the left surface of the positioning platform 13, and the positioning seat 12 is knocked to make the rear surface of the positioning seat body 10 close to the connecting beam 20, and the lower surface of the positioning platform close to the connecting beam 20. After all the clamping is completed, the tightening bolt 32 is tightened to ensure that the clamping is stable.

[0035] Use a bench drill to process the four positioning holes 11 on one side of the connecting beam 20. After the processing is completed, repeat the above method to process the four positioning holes 11 on the other side of the connecting beam 20.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A drilling jig for a fan coal mill connecting beam, characterized in that: include: A positioning seat body (10), one end of the connecting beam (20) being clamped on the positioning seat body (10); A plurality of top seat assemblies (30), wherein the plurality of top seat assemblies (30) are arranged on the top surface of the positioning seat body (10), and the plurality of top seat assemblies (30) are tightly pressed against the other end of the connecting beam (20); A plurality of positioning holes (11) are provided in the middle of the top surface of the positioning seat body (10).

2. A drilling jig for a fan coal mill connecting beam according to claim 1, characterized in that: The positioning seat body (10) comprises a positioning seat (12), wherein the upper and lower side surfaces of one end of the positioning seat (12) are respectively provided with positioning platforms (13), a connecting beam (20) is provided on the top surface of the positioning seat (12), and the other end of the connecting beam (20) abuts against the positioning platform (13); and a plurality of positioning holes (11) are provided in the middle of the top surface of the positioning seat (12).

3. A drilling jig for a fan coal mill connecting beam according to claim 2, characterized in that: A tool withdrawal groove (14) is provided on the positioning platform (13) at a position close to the connecting beam (20).

4. The drilling jig for the fan coal mill connecting beam according to claim 1, characterized in that: A steel sleeve (15) is arranged in each positioning hole (11).

5. The drilling jig for the fan coal mill connecting beam according to claim 1, characterized in that: The top seat assembly (30) comprises a top seat (31), the top seat (31) being mounted on a side of the positioning seat (12) away from the positioning platform, the top seat (31) being provided with a tightening bolt (32) threadedly connected thereto, the end of the tightening bolt (32) close to the positioning seat (12) being capable of tightening the connecting beam (20).

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