阅读说明：本技术 渣罐耳轴及其制作方法 (Slag pot trunnion and manufacturing method thereof ) 是由 翟恒东 刘峰 王雷 熊伟 牛飞 于 2020-05-19 设计创作，主要内容包括：本发明提供一种渣罐耳轴及其制作方法；其中渣罐耳轴包括轴体,所述轴体的一端设有环槽,所述环槽用于嵌入挡肩的限位凸台,所述轴体的另一端用于与渣罐本体固接。本渣罐耳轴会安装在渣罐本体上,当采用渣罐车叉运渣罐时,渣罐车工作机构的叉瓦卡住轴体,当渣罐左右有窜动时,渣罐的一侧靠在渣罐车工作机构的叉瓦内侧,以限制渣罐左右窜动,从而保证能安全叉运渣罐,并防止其倾翻；当需要采用行车吊运渣罐时,由于轴体上预留有环槽,可以方便加装挡肩,以利用挡肩的限位作用,保证行车能安全吊运渣罐。本实施例中渣罐耳轴,满足了使用需求；且与传统的带轴肩的整体式耳轴相比,本渣罐耳轴节约了材料,大幅降低了制作成本。(The invention provides a slag pot trunnion and a manufacturing method thereof; wherein the slag pot trunnion includes the axis body, the one end of axis body is equipped with the annular, the annular is used for imbedding the spacing boss that keeps off the shoulder, the other end of axis body be used for with slag pot body rigid coupling. The slag pot trunnion can be arranged on a slag pot body, when a slag pot car is adopted to fork a slag pot, a fork bush of a slag pot car working mechanism clamps a shaft body, and when the slag pot moves leftwards and rightwards, one side of the slag pot leans against the inner side of the fork bush of the slag pot car working mechanism to limit the left and right movement of the slag pot, so that the slag pot can be safely forked and prevented from tipping; when the slag pot needs to be hoisted by the travelling crane, the annular groove is reserved on the shaft body, so that the retaining shoulder can be conveniently and additionally arranged, and the slag pot can be safely hoisted by the travelling crane by utilizing the limiting effect of the retaining shoulder. The slag pot trunnion in the embodiment meets the use requirement; and compare with traditional integral gudgeon of taking the shaft shoulder, this slag ladle gudgeon material saving has reduced the cost of manufacture by a wide margin.)

1. The utility model provides a slag pot trunnion, its characterized in that, includes axis body (1), the one end of axis body (1) is equipped with annular (11), annular (11) are used for imbedding the spacing boss that keeps off shoulder (2), the other end of axis body (1) is used for with slag pot body rigid coupling.

2. The slag pot trunnion of claim 1, further comprising a shoulder (2) which is annular and is sleeved on the shaft body (1), wherein a limit boss embedded in the annular groove (11) is arranged on the inner wall of the shoulder (2), the shoulder (2) comprises a left shoulder (21) and a right shoulder (22) fixedly connected with the left shoulder (21), a left limit boss (211) embedded in the annular groove (11) is arranged on the inner wall of the left shoulder (21), a right limit boss (221) embedded in the annular groove (11) is arranged on the inner wall of the right shoulder (22), and the limit boss comprises the left limit boss (211) and the right limit boss (221).

3. The slag pot trunnion according to claim 2, characterized in that the left retaining shoulder (21) is provided with a left guide inclined surface (212) on the side facing the slag pot body, and the right retaining shoulder (22) is provided with a right guide inclined surface (222) on the side facing the slag pot body.

4. The slag pot trunnion according to claim 2, characterized in that the left and right shoulders (21, 22) are welded.

5. The slag ladle trunnion according to claim 4, wherein a welding groove (23) is formed at the joint of the left retaining shoulder (21) and the right retaining shoulder (22).

6. A method of manufacture for the manufacture of a trunnion for slag pots according to claim 1, comprising the steps of:

1) manufacturing the shaft body (1); manufacturing a semi-annular left retaining shoulder (21) and a semi-annular right retaining shoulder (22), wherein a left limiting boss (211) is arranged on the inner wall of the left retaining shoulder (21), and a right limiting boss (221) is arranged on the inner wall of the right retaining shoulder (22);

2) a left limiting boss (211) of a left retaining shoulder (21) is clamped into a ring groove (11) of the shaft body (1); the right limit lug boss (221) of the right retaining shoulder (22) is clamped into the annular groove (11) of the shaft body (1);

3) the left retaining shoulder (21) and the right retaining shoulder (22) are fixedly connected to obtain an annular retaining shoulder (2), and the assembly of the retaining shoulder (2) and the shaft body (1) is realized.

7. The manufacturing method according to claim 6, wherein in the step 1), a complete shoulder block blank is processed, and then the shoulder block blank is symmetrically split to obtain the left shoulder block (21) and the right shoulder block (22).

8. The method as claimed in claim 7, wherein in step 1), the shoulder blank is made of a plate material.

9. The manufacturing method according to claim 6, wherein in the step 1), a shaft blank is processed by a forging process, then the shaft blank is subjected to heat treatment and nondestructive inspection, and then the qualified shaft blank is subjected to finish machining to obtain the shaft body (1).

10. The manufacturing method according to claim 6, characterized in that in the step 3), the left retaining shoulder (21) and the right retaining shoulder (22) are fixedly connected by a welding process.

Technical Field

The invention relates to the technical field of slag pots, in particular to a slag pot trunnion and a manufacturing method thereof.

Background

The slag pot is widely applied in metallurgical enterprises, for example, in the copper slag slow cooling process, the consumption of the slag pot reaches about 300 sets in a domestic enterprise, and the number of the slag pots for containing the smelting slag in the copper smelting enterprise is about 7000 sets.

Meanwhile, among the components of the slag pot, the trunnion is taken as an important stress component, and the cost accounts for a large amount of the overall cost of the slag pot. However, conventional trunnion structures are typically monolithic and costly to manufacture.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to provide a slag pot trunnion with low cost.

In order to achieve the purpose, the invention provides a slag pot trunnion which comprises a shaft body, wherein one end of the shaft body is provided with a ring groove, the ring groove is used for embedding a limiting boss of a retaining shoulder, and the other end of the shaft body is fixedly connected with a slag pot body.

Further, the slag ladle trunnion still establishes the fender shoulder on the axis body including being cyclic annular and cover, be equipped with the spacing boss that inlays in the annular on the inner wall of fender shoulder, just keep off the shoulder including a left side keep off the shoulder and keep off the right side of shoulder rigid coupling with a left side and keep off the shoulder, be equipped with the left spacing boss that inlays in the annular on the inner wall of the shoulder is kept off on a left side, be equipped with the right spacing boss that inlays in the annular on the inner wall of the shoulder is kept off on the right side, spacing boss includes a left side spacing boss with the right spacing boss.

Furthermore, a left guide inclined plane is arranged on one side face, facing the slag pot body, of the left retaining shoulder, and a right guide inclined plane is arranged on one side face, facing the slag pot body, of the right retaining shoulder.

Further, the left retaining shoulder and the right retaining shoulder are welded.

Furthermore, a welding groove is formed at the joint of the left retaining shoulder and the right retaining shoulder.

As mentioned above, the slag ladle trunnion related to the invention has the following beneficial effects:

when the slag pot is moved leftwards and rightwards, one side of the slag pot leans against the inner side of the fork tile of the slag pot vehicle working mechanism to limit the left and right movement of the slag pot, so that the slag pot can be safely forked and prevented from tipping; when the slag pot needs to be hoisted by the travelling crane, the annular groove is reserved on the shaft body, so that the retaining shoulder can be conveniently and additionally arranged, and the slag pot can be safely hoisted by the travelling crane by utilizing the limiting effect of the retaining shoulder. The slag pot trunnion in the embodiment meets the use requirement; and compare with traditional integral gudgeon of taking the shaft shoulder, this slag ladle gudgeon material saving has reduced the cost of manufacture by a wide margin.

Another technical problem to be solved by the present invention is to provide a manufacturing method with low cost.

In order to achieve the above object, the present invention provides a manufacturing method for manufacturing the trunnion of the slag pot, the manufacturing method comprising the steps of:

1) manufacturing the shaft body; manufacturing a semi-annular left retaining shoulder and a semi-annular right retaining shoulder, wherein a left limiting boss is arranged on the inner wall of the left retaining shoulder, and a right limiting boss is arranged on the inner wall of the right retaining shoulder;

2) clamping a left limiting boss of the left retaining shoulder into a ring groove of the shaft body; the right limit boss of the right baffle shoulder is clamped into the annular groove of the shaft body;

3) and fixedly connecting the left retaining shoulder and the right retaining shoulder to obtain an annular retaining shoulder and realize the assembly of the retaining shoulder and the shaft body.

Further, in the step 1), a complete shoulder blocking blank is processed, and then the shoulder blocking blank is symmetrically split to obtain a left shoulder blocking body and a right shoulder blocking body.

Further, in the step 1), a plate is adopted to manufacture a shoulder blocking blank.

Further, in the step 1), a shaft blank is processed by adopting a forging process, then the shaft blank is subjected to heat treatment and nondestructive inspection, and then the qualified shaft blank is subjected to finish machining to obtain the shaft body.

Further, in the step 3), the left retaining shoulder and the right retaining shoulder are fixedly connected by using a welding process.

As described above, the manufacturing method according to the present invention has the following advantageous effects:

the manufacturing method is simple to operate and low in manufacturing cost, and compared with an integral trunnion with a shaft shoulder, the manufactured slag pot trunnion greatly reduces material cost and further reduces manufacturing cost. In addition, after the retaining shoulder is worn and needs to be replaced, the old retaining shoulder can be detached by disconnecting the connection relation between the left retaining shoulder and the right retaining shoulder, and then a new retaining shoulder can be mounted, so that the replacement work of the retaining shoulder is facilitated.

Drawings

FIG. 1 is a front view of a trunnion of a slag pot in accordance with an embodiment of the present invention.

FIG. 2 is a top view of a trunnion of a slag pot in accordance with an embodiment of the present invention.

FIG. 3 is a left side view of a trunnion of a slag pot in accordance with an embodiment of the present invention.

FIG. 4 is a front view of a trunnion of a slag pot in a second embodiment of the invention.

FIG. 5 is a left side view of a trunnion of a slag pot in accordance with a second embodiment of the present invention.

FIG. 6 is a top view of a trunnion of a slag pot in accordance with a second embodiment of the present invention.

Fig. 7 is a sectional view taken along line a-a in fig. 4.

Fig. 8 is a sectional view taken along line B-B in fig. 6.

Fig. 9 is an enlarged view of circle C in fig. 8.

Description of the element reference numerals

1 axle body

11 ring groove

12 grooves

13 axle hole

14 card slot

2 keep off shoulder

21 left shoulder

211 left limit boss

212 left guide ramp

22 right shoulder

221 right limit boss

222 right guide ramp

23 welding groove

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention unless otherwise specified.

Example one

As shown in fig. 1 to 3, the present embodiment provides a slag pot trunnion, which includes a shaft body 1, wherein one end of the shaft body 1 is provided with a ring groove 11, the ring groove 11 is used for being embedded into a limit boss of the shoulder 2, and the other end of the shaft body 1 is used for being fixedly connected with a slag pot body. In the embodiment, the slag pot trunnion is arranged on the slag pot body when in use, when a slag pot car is adopted to fork a slag pot, a fork bush of a working mechanism of the slag pot car clamps the shaft body 1, and when the slag pot moves left and right, one side of the slag pot leans against the inner side of the fork bush of the working mechanism of the slag pot car to limit the left and right movement of the slag pot, so that the slag pot can be safely forked and prevented from tipping; when a travelling crane is needed to hoist the slag pot, the annular groove 11 is reserved on the shaft body 1, so that the retaining shoulder 2 can be conveniently additionally installed, and the slag pot can be safely hoisted by the travelling crane by utilizing the limiting effect of the retaining shoulder 2. The slag pot trunnion in the embodiment meets the use requirement; and compare with traditional integral gudgeon of taking the shaft shoulder, this slag ladle gudgeon material saving has reduced the cost of manufacture by a wide margin.

In the embodiment, the slag pot trunnion is not provided with a shaft shoulder, only the ring groove 11 is processed, and the slag pot trunnion is suitable for the working condition of a slag pot car. Meanwhile, when a user requires to use the travelling crane to hoist the slag pot, the retaining shoulder 2 can be conveniently added in the ring groove 11 reserved on the shaft body 1. The cost of each set of slag pot with the slag pot trunnion in the embodiment is reduced by about 1380 yuan, and the manufacturing cost can be reduced by 4300000 yuan according to 1000 sets of sales calculation.

Example two

As shown in fig. 4 to 9, the slag pot trunnion in this embodiment further includes a shoulder 2 that is annular and is sleeved on the shaft body 1 on the basis of the first embodiment, a limit boss that is embedded in the ring groove 11 is arranged on the inner wall of the shoulder 2, the shoulder 2 includes a left shoulder 21 and a right shoulder 22 that is fixedly connected to the left shoulder 21, a left limit boss 211 that is embedded in the ring groove 11 is arranged on the inner wall of the left shoulder 21, a right limit boss 221 that is embedded in the ring groove 11 is arranged on the inner wall of the right shoulder 22, and the limit boss includes a left limit boss 211 and a right limit boss 221.

Meanwhile, as shown in fig. 4 to 9, the present embodiment provides a manufacturing method for manufacturing the slag pot trunnion, the manufacturing method including the steps of:

1) manufacturing the shaft body 1; manufacturing a semi-annular left retaining shoulder 21 and a semi-annular right retaining shoulder 22, wherein a left limiting boss 211 is arranged on the inner wall of the left retaining shoulder 21, and a right limiting boss 221 is arranged on the inner wall of the right retaining shoulder 22;

2) the left limit boss 211 of the left shoulder 21 is clamped into the annular groove 11 of the shaft body 1; the right limit lug boss 221 of the right retaining shoulder 22 is clamped into the annular groove 11 of the shaft body 1;

3) the left retaining shoulder 21 and the right retaining shoulder 22 are fixedly connected to obtain the annular retaining shoulder 2, and the assembly of the retaining shoulder 2 and the shaft body 1 is realized.

The manufacturing method is simple to operate and low in manufacturing cost, and compared with an integral trunnion with a shaft shoulder, the manufactured slag pot trunnion greatly reduces material cost and further reduces manufacturing cost. In addition, after the retaining shoulder 2 is worn and needs to be replaced, the old retaining shoulder 2 can be detached by disconnecting the connection relation between the left retaining shoulder 21 and the right retaining shoulder 22, and then a new retaining shoulder 2 can be installed, so that the replacement work of the retaining shoulder 2 is facilitated.

As shown in fig. 7, in the present embodiment, a left guiding inclined surface 212 is provided on a side surface of the left retaining shoulder 21 facing the slag pot body, and a right guiding inclined surface 222 is provided on a side surface of the right retaining shoulder 22 facing the slag pot body. When the slag pot is hoisted by the travelling crane, the travelling crane plate hooks easily slide into corresponding positions on the shaft body 1 by utilizing the guiding action of the left guiding inclined plane 212 and the right guiding inclined plane 222, so that the slag pot is greatly convenient to hoist by the travelling crane. In this embodiment, the left guiding inclined surface 212 and the right guiding inclined surface 222 are in a plane or arc structure. In the present embodiment, the left shoulder 21 and the right shoulder 22 are welded.

In the step 1) of this embodiment, a complete shoulder block blank is first processed, and then the shoulder block blank is symmetrically split to obtain the left shoulder block 21 and the right shoulder block 22. The mode is convenient for accurately processing the left retaining shoulder 21 and the right retaining shoulder 22, and the required retaining shoulder 2 can be accurately obtained after the left retaining shoulder 21 and the right retaining shoulder 22 are welded. Meanwhile, in the step 1), the shoulder blocking blank is manufactured by adopting a plate, so that the shoulder blocking blank is convenient to process, and the manufacturing cost is reduced; the method specifically comprises the steps of blanking, machining the plate to obtain a shoulder blocking blank, and then cutting the shoulder blocking blank to obtain a left shoulder 21 and a right shoulder 22.

The specific processes for manufacturing the left retaining shoulder 21 and the right retaining shoulder 22 in this embodiment are as follows: the method is characterized in that the method is manufactured by adopting a low-alloy high-strength plate, the flatness and the surface quality of the plate are strictly checked, and the next process cannot be carried out if quality defects exist; during blanking, numerical control or a robot is adopted; and then, performing finish machining on the obtained shoulder blocking blank, and cutting along the center line of the shoulder blocking blank to obtain a left shoulder block 21 and a right shoulder block 22. In addition, the welding grooves of the left retaining shoulder 21 and the right retaining shoulder 22 are formed by groove special equipment, and the butt weld adopts an X-shaped groove.

In the step 1) of this embodiment, a forging process is adopted, a shaft blank is machined from a height steel, the shaft blank is subjected to heat treatment and nondestructive inspection, and then the qualified shaft blank is subjected to finish machining to obtain the shaft body 1, and the machining precision of the shaft body 1 is ensured to be high.

In the step 3), the left retaining shoulder 21 and the right retaining shoulder 22 are fixedly connected by using a welding process, so that the left retaining shoulder 21 and the right retaining shoulder 22 are connected, and the high connection strength between the left retaining shoulder 21 and the right retaining shoulder 22 is ensured. Meanwhile, as shown in fig. 5, a welding groove 23 is formed at a joint of the left shoulder 21 and the right shoulder 22 in the present embodiment, and when the left shoulder 21 and the right shoulder 22 are welded, a weld is formed at the welding groove 23. This embodiment will keep off shoulder 21 and right fender shoulder 22 butt weld, and the welding is convenient to do benefit to the later stage and change it after keeping off shoulder 2 wearing and tearing. In the embodiment, the blocking shoulder 2 adopts an assembled structure, so that the strength is ensured to be reliable. In addition, welding spatter and the like are removed after the left retaining shoulder 21 and the right retaining shoulder 22 are welded, and polishing is smooth, so that the slag pot trunnion assembly is completed.

In the present embodiment, submerged arc welding is used for butt-jointing the left shoulder 21 and the right shoulder 22, and the welding material is H10Mn2+ HJ 431. And the diameter of the welding wire is 5mm, the welding current is 510-610A, the welding voltage is 27-33V, the welding speed is 21-30 cm/min, multilayer multi-pass welding is adopted, and back gouging is carried out. The welding preheating adopts an electric heating or flame heating method, and the preheating before welding and the interlayer temperature are 85-140 ℃. The preheated heating areas are arranged at two sides of the welding groove, and the width of each preheating area is more than 1.5 times of the width of a weldment at the welding position of the weldment and is not less than 100 mm. The butt weld is a full penetration weld; and the trunnion ultrasonic nondestructive testing is qualified in level 2.

After the assembly of the shoulder 2 and the shaft body 1 is completed, the slag pot trunnion is assembled on the slag pot body. The slag pot trunnion in this embodiment can satisfy the user simultaneously and use the needs that the car handling slag pot of driving and use the slag pot car fork to transport, tip the slag pot. When the slag pot used the driving handling, the driving plate hook had certain axial striking to keeping off shoulder 2, kept off 2 holes of shoulder and be stair structure, closely cooperated with axis body 1, calculated reliable butt weld length simultaneously, ensured that keep off shoulder 2 can bear the axial striking.

As shown in fig. 4 and 6, the shaft body 1 is provided with a groove 12 and a shaft hole 13, and both side walls of the other end of the shaft body 1 are provided with locking grooves 14.

Keep off in this embodiment shoulder 2 and axis body 1 and be the assembled structure, when keeping off 2 wearing and tearing of shoulder, will keep off 2 butt weld of shoulder and blow off, can conveniently change new fender shoulder 2. Compare with the integral trunnion of taking the shoulder of traditional slag ladle, the shoulder of slag ladle trunnion adopts assembled structure in this embodiment, has reduced material cost by a wide margin. By adopting each set of slag pot with the slag pot trunnion in the embodiment, the cost is reduced by about 620 yuan, and the manufacturing cost can be reduced by 620000 yuan according to 1000 sets of sales calculation.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.