CN215845475U - Forming and forging die for triangular wear-resistant lining plate of semi-autogenous mill - Google Patents

Abstract

The utility model discloses a forming forging die for a triangular wear-resistant lining plate of a semi-autogenous mill, which comprises a first template and a second template which are arranged in the vertical direction, and a triangular wear-resistant lining plate forming die cavity between the first template and the second template. The forming and forging die for the triangular wear-resistant lining plate of the semi-autogenous mill can improve the flowability of a steel part in the forming process, reduce the internal stress accumulated by small-angle transition, facilitate the improvement of the impact resistance of the semi-autogenous mill lining plate in the forming process and reduce the cracks of the lining plate.

Description

Forming and forging die for triangular wear-resistant lining plate of semi-autogenous mill

Technical Field

The utility model belongs to the technical field of wear-resistant lining plate processing, and relates to a forging die of a forging machine used in a forming process of changing casting into forging of a wear-resistant lining plate of a semi-autogenous mill.

Background

The common semi-autogenous mills (including autogenous mills) have dozens of models, the diameter is 3-15 m, the length is 2-10 m, and a mill cylinder body with 360 degrees is formed by 20-70 lining plates in each cylinder body with the diameter. The diameter and the length of each semi-autogenous mill cylinder are different, each model semi-autogenous mill has dozens of lining boards with different sizes and shapes, and each model comprises a cylinder lining board, an angle lining board, a feeding end lining board, an ore pulp lifter, an intermediate discharging board, a discharging grid board and the like.

However, the inventors found that such techniques have at least one of the following technical problems during long-term use:

(1) the thickness of the lining plate of the semi-autogenous mill is large from 30-400 mm, the length is about 2m, the structural shape is complex, the existing wear-resistant lining plate is cast and formed and is easy to break and lose efficacy, and therefore the service life is about 4 months.

(2) At present, the wear-resistant lining plate is formed by smelting and casting in an intermediate frequency furnace without a refining procedure, smelting raw materials mainly comprise waste steel, inclusions in the smelting process exceed the standard, harmful elements are difficult to control, and casting defects such as shrinkage cavity, looseness and air holes often have the phenomena of fracture and serious abrasion in the application process.

(3) The steel forging forming comprises free forging and die forging, the lifting surface of the original semi-autogenous grinding lining plate mainly takes an inclined surface, the crushing surface mainly takes a plane, a 90-degree transition angle is formed at the joint, and the crushing surface is not easy to fill in the production process.

(4) In the prior art, a forging and pressing die which can be used for forming the triangular wear-resistant lining plate of the semi-autogenous mill does not exist.

The triangle in the present invention does not strictly belong to a geometrically defined triangle, and the figure has a shape close to a triangle and belongs to a triangle-like shape. One or more corners of the triangle are rounded or passivated, one or more sides of the graph can be one or more straight lines or line segments, and when a plurality of line segments are formed, an obtuse angle close to a straight angle is formed between any two line segments; generally, such a triangle has three main sides, and two adjacent sides are directly or indirectly intersected and are connected through an arc or a line segment under the condition of not directly intersecting, so that the triangle is suitable for industrial application, in particular to installation and use of a wear-resistant lining plate in mill equipment.

Disclosure of Invention

In view of this, the present invention provides a forging mold for forming a triangular wear-resistant lining plate. The triangular wear-resistant lining plate produced by using the forging die has the advantages that the flowability and the filling property of a steel part in the forging process are effectively improved, the fracture resistance and the wear resistance of the lining plate are improved, and meanwhile, the service lives of the lining plate and the forging die are prolonged.

The utility model provides a forging and pressing die for forming a triangular wear-resistant lining plate of a semi-autogenous mill, which comprises a first template and a second template which are vertically arranged and a triangular wear-resistant lining plate forming die cavity between the first template and the second template.

According to one embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the first template is located above the second template or the second template is located above the first template.

According to one embodiment of the triangular wear-resistant lining plate forming and forging die of the semi-autogenous mill, the triangular wear-resistant lining plate forming die cavity comprises a crushing die cavity forming a crushing part and a lifting die cavity forming a lifting part.

According to one embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the cross section of the lifting die cavity is triangular.

According to one embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the first die plate comprises a mounting forming surface forming a lining plate mounting surface, the second die plate comprises a lifting forming surface forming a lining plate lifting surface, and the second die plate comprises a crushing forming surface forming a crushing surface.

According to a specific embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the installation forming surface is one of a plane, an arc surface, a sawtooth surface and a corrugated surface, or the installation forming surface is further provided with convex strips.

According to one embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the crushing die cavity is located in the first die plate, or the crushing die cavity is located in the second die plate.

According to one embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the crushing forming surfaces comprise a first crushing forming surface and a second crushing forming surface, and the lifting forming surfaces comprise a first lifting forming surface, a second lifting forming surface and a third lifting forming surface which are connected in sequence; a first transition surface forming surface is arranged between the first crushing forming surface and the first lifting forming surface, a second transition surface forming surface is arranged between the second crushing forming surface and the third lifting forming surface, and the first crushing forming surface, the first transition surface forming surface, the first lifting forming surface, the second lifting forming surface, the third lifting forming surface, the second transition surface forming surface and the second crushing forming surface are sequentially connected; the second lifting forming surface is a lifting top surface forming surface.

According to a specific embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the first crushed forming surface or/and the second crushed forming surface is/are one of a plane, a curved surface, a sawtooth surface and a corrugated surface; the second lifting forming surface is a plane, and the third lifting forming surface is a plane; the included angle between the first lifting forming surface and the third lifting forming surface is 30-80 degrees; the first transition surface forming surface is a plane or a curved surface, and the second transition surface forming surface is a plane or a curved surface; the width of the second lifting forming surface is 1-200 mm.

According to a specific embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the first transition surface forming surface is a plane, and an included angle between the first crushing forming surface and the first transition surface forming surface is 90-180 degrees; the included angle between the first transition surface forming surface and the first lifting forming surface is 135-180 degrees; the second transition surface forming surface is a plane, and an included angle between the second transition surface forming surface and the second crushing forming surface is 90-180 degrees; the included angle between the third lifting forming surface and the second transition surface forming surface is 135-180 degrees;

according to a specific embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the first transition surface forming surface is a curved surface A, a lead of the curved surface A is a line segment cut from an ellipse or a circle, and the first crushing forming surface, the first transition surface forming surface and the first lifting forming surface are connected in sequence in a smooth transition mode; the second transition surface forming surface is a curved surface B, a lead of the curved surface B is a line segment cut on an ellipse or a circle, and the second crushing forming surface, the second transition surface forming surface and the third lifting forming surface are connected in sequence in a smooth transition manner;

according to a specific embodiment of the triangular wear-resistant lining plate forming forging die of the semi-autogenous mill, the first transition surface forming surface and the first crushing forming surface form a curved surface C, a lead of the curved surface C is a line segment cut on an ellipse, and the first transition surface forming surface is in smooth transition connection with the first lifting forming surface; the second transition surface forming surface and the second crushing forming surface form a curved surface D, a lead of the curved surface D is a line segment cut on an ellipse, and the second transition surface forming surface is in smooth transition connection with the second lifting forming surface.

Compared with the prior art, one of the technical solutions has the following advantages:

the triangular wear-resistant lining plate forging die disclosed by the utility model can improve the flowability of a steel part in the forming process, reduce the internal stress accumulated by small-angle transition, facilitate the improvement of the impact resistance of a semi-autogenous grinding lining plate in the forming process and reduce the cracks of the lining plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a preferred embodiment of a triangular wear-resistant lining plate forming forging die of a semi-autogenous mill of the present invention.

FIG. 2 is a schematic structural view of another preferred embodiment of a triangular wear-resistant lining plate forming forging mold of a semi-autogenous mill of the present invention.

FIG. 3 is a schematic structural view of a triangular wear-resistant lining plate forming forging mold of a semi-autogenous mill according to another preferred embodiment of the present invention.

FIG. 4 is a schematic structural view of a forging mold for forming triangular wear-resistant lining plates of a semi-autogenous mill according to still another preferred embodiment of the present invention.

The labels in the figure are respectively: 100 of the forging die, and forging the die,

110 a first template for the first mold plate,

120 of the first template and the second template,

11 the mould cavity is broken up, and,

12 the mould cavity is lifted up and,

111 to be installed on the molding surface,

112 a first one of the crushing and forming surfaces,

113 a second crushing and forming surface of the second crushing and forming surface,

121 a first transition surface forming surface,

122 a first one of the raised profiled surfaces,

123 a second raised profiled surface on the second side of the mould,

124 of the third raised profiled surface,

125 a second transition surface forming surface of the second transition surface,

a1, the first included angle,

a2, second angle.

Detailed Description

The following description and the specific embodiments are made with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Example 1

See fig. 1. Fig. 1 shows a semi-autogenous mill triangular wear liner shaped swage seat 100, the swage seat 100 including an upper seat or first die plate 110 above and a lower seat or second die plate 120 below the upper seat. The first template 110 and the second template 120 are both provided with grooves, and the first template 110 and the second template 120 enclose to form a triangular wear-resistant lining plate molding die cavity.

The triangular wear lining plate forming die cavity comprises a crushing die cavity 11 forming a crushing part and a lifting die cavity 12 forming a lifting part. In this embodiment, the crushing cavity 11 is located in the first die plate 110 and the lifting cavity 12 is located in the second die plate 120. The width of the crushing cavity 11 is larger than the width of the lifting cavity 12, i.e. the opening of the crushing cavity 11 may completely cover the opening of the lifting cavity 12.

Referring to fig. 1, the crushing cavity 11 is open downwards and has a top surface which is a mounting profile 111 forming a mounting surface for the lining plate. The installation molding surface 111 can be one of a plane, an arc surface, a sawtooth surface or a corrugated surface, and a plurality of convex strips can be arranged on the installation molding surface to form a groove on the liner plate installation surface. The mounting molding surface 111 is provided with a groove, and when the lining plate is assembled, a part of gap is reserved between the lining plate and the mill outer cylinder body, so that the mounting is convenient. Fig. 1 of the present embodiment shows a case where the mounting surface of the liner plate is a curved surface.

Referring to fig. 1, the lifting cavity 12 is upwardly open and has a V-shaped bottom surface, i.e., the lifting cavity 12 is triangular in cross-section. It should be noted that the triangle in the present invention does not strictly belong to a geometrically defined triangle, and the figure has a shape close to a triangle and belongs to a triangle-like shape. One or more corners of the triangle are rounded or passivated, one or more sides of the graph can be one or more straight lines or line segments, and when a plurality of line segments are formed, an obtuse angle close to a straight angle is formed between any two line segments; generally, such a triangle has three main sides, and two adjacent sides are directly or indirectly intersected and are connected through an arc or a line segment under the condition of not directly intersecting, so that the triangle is suitable for industrial application, in particular to installation and use of a wear-resistant lining plate in mill equipment. Figure 1 gives a schematic representation of a triangle.

The lifting mold cavity 12 includes a transition surface molding surface forming a transition surface and a lifting molding surface forming a liner lifting surface, and specifically includes a first transition surface molding surface 121, a first lifting molding surface 122, a second lifting molding surface 123, a third lifting molding surface 124, and a second transition surface molding surface 125, which are connected in sequence. The second lifting forming surface 123 is the lifting top forming surface of the backing plate and is also the lowermost part of the lifting cavity 12. The second lifting forming surface 123 is one of a plane, a curved surface, and a pointed top surface. Fig. 1 shows a case where the second lifting and forming surface 123 is a curved surface, specifically, a curved surface. The width of the second lifting forming surface 123 is 1-200 mm, and the specific width is determined according to the actual requirement of the wear-resistant lining plate. In the present application, the first transition surface forming surface 121 and the second transition surface forming surface 125 are flat surfaces. In this application, the plane is not specifically a horizontally disposed plane, but a geometrical plane, including a horizontally disposed plane and an inclined plane.

The included angle between the first transition surface forming surface 121 and the first lifting forming surface 122 is an obtuse angle, and can also be a straight angle; the included angle between the third lifting forming surface 124 and the second transition surface forming surface 125 is an obtuse angle, and may be a straight angle. The included angle a2 between the first transition surface forming surface 121 and the first riser forming surface 122 is any angle between 135 deg. and 180 deg., such as 135 deg., 150 deg., 160 deg., 170 deg., or 180 deg.. The included angle a1 between the first and third lift forming surfaces 122, 124 is any angle between 30 ° and 80 °, such as 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, and others within this range. In the application, the corners are all chamfered, that is, the transition from one surface to the other surface is smooth through an arc.

The second mold plate 120 is further provided with a crushing molding surface, which includes a first crushing molding surface 112 and a second crushing molding surface 113 located at two sides of the lifting mold cavity 12. The first crush molding surface 112 and the second crush molding surface 113 may be present at the same time, or may be provided symmetrically or asymmetrically, with only one crush molding surface. When the first crushing shaped surface 112 and the second crushing shaped surface 113 exist at the same time.

In this embodiment, the first crush molding surface 112 and the second crush molding surface 113 are portions of the upper surface of the second die plate 120 covered by the crush cavity 11. The first crushing molding surface 112, the first transition surface molding surface 121, the first lifting molding surface 122, the second lifting molding surface 123, the third lifting molding surface 124, the second transition surface molding surface 125 and the second crushing molding surface 113 are connected in sequence. The first crushing molding surface 112 or/and the second crushing molding surface 113 is one of a plane, a curved surface, a serrated surface and a corrugated surface, and in the utility model, the first crushing molding surface 112 and the second crushing molding surface 113 are both horizontally arranged planes.

The included angle between the first crushing molding surface 112 and the first transition surface molding surface 121 is 90-180 degrees; preferably 135 to 180. The included angle between the second transition surface forming surface 125 and the second crushing forming surface 113 is 90-180 degrees, and preferably 135-180 degrees.

The specific value of the dimension in the embodiment is specifically selected according to the size design of the wear-resistant lining plate, namely, the dimension of the cylinder body in the semi-autogenous mill.

Example 2

See fig. 2. Fig. 2 shows a semi-autogenous mill triangular wear liner shaped swage seat 100, the swage seat 100 including an upper seat or first die plate 110 above and a lower seat or second die plate 120 below the upper seat. The first template 110 and the second template 120 are both provided with grooves, and the first template 110 and the second template 120 enclose to form a triangular wear-resistant lining plate molding die cavity.

The triangular wear lining plate forming die cavity comprises a crushing die cavity 11 forming a crushing part and a lifting die cavity 12 forming a lifting part. In this embodiment, the crushing cavity 11 and the lifting cavity 12 are both located in the second template 120. In this embodiment, the crushing cavity 11 and the lifting cavity 12 are one cavity, and are named according to their different functions for convenience of description.

Referring to fig. 2, the first mold plate 110 has a mounting molding surface 111 thereon. The installation molding surface 111 can be one of a plane, an arc surface, a sawtooth surface or a corrugated surface, and a plurality of convex strips can be arranged on the installation molding surface to form a groove on the liner plate installation surface. The mounting molding surface 111 is provided with a groove, and when the lining plate is assembled, a part of gap is reserved between the lining plate and the mill outer cylinder body, so that the mill inner cylinder body can be conveniently assembled. Fig. 2 shows the case where the mounting surface of the lining board is a cambered surface, that is, an arc-shaped groove is formed on the lower bottom surface of the first formwork 110.

Referring to fig. 2, the crushing cavity 11 and the lifting cavity 12 are an integral recess opened upward, and the bottom surface of the lifting cavity 12 has a V-shape, that is, the cross-section of the lifting cavity 12 has a triangular shape. It should be noted that the triangle in the present invention does not strictly belong to a geometrically defined triangle, and the figure has a shape close to a triangle and belongs to a triangle-like shape. One or more corners of the triangle are rounded or blunted and one or more sides of the figure may be formed from one or more straight or curved line segments. Generally, such a triangle has three main sides, and two adjacent sides are directly or indirectly intersected and are connected through an arc or a line segment under the condition of not directly intersecting, so that the triangle is suitable for industrial application, in particular to installation and use of a wear-resistant lining plate in mill equipment. Figure 2 gives a schematic representation of a triangle.

The lifting cavity 12 includes lifting forming surfaces forming the lifting surfaces of the liner plate, and more particularly, includes a first transition surface forming surface 121, a first lifting forming surface 122, a second lifting forming surface 123, a third lifting forming surface 124, and a second transition surface forming surface 125 connected in series. The second lifting forming surface 123 is the lifting top forming surface of the backing plate and is also the lowermost part of the lifting cavity 12. The second lifting forming surface 123 is one of a plane, a curved surface, and a pointed top surface. Fig. 2 shows a case where the second lifting and forming surface 123 is a curved surface, specifically, a curved surface. The width of the second lifting forming surface 123 is 1-200 mm, and the specific width is determined according to the actual requirement of the wear-resistant lining plate.

The included angle between the first transition surface forming surface 121 and the first lifting forming surface 122 is an obtuse angle, and can also be a straight angle; the included angle between the third lifting forming surface 124 and the second transition surface forming surface 125 is an obtuse angle, and may be a straight angle. The included angle a2 between the first transition surface forming surface 121 and the first riser forming surface 122 is any angle between 135 deg. and 180 deg., such as 135 deg., 150 deg., 160 deg., 170 deg., or 180 deg.. The included angle a1 between the first and third lift forming surfaces 122, 124 is any angle between 30 ° and 80 °, such as 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, and others within this range. Of course, the included angle between the first lifting forming surface 122 and the third lifting forming surface 124 is different, and the lifting efficiency of the lining board is different.

The second mold plate 120 is further provided with a crushing molding surface, which includes a first crushing molding surface 112 and a second crushing molding surface 113 located at two sides of the lifting mold cavity 12. The first crush molding surface 112 and the second crush molding surface 113 may be present at the same time, or may be present alone. When the first crush molding surface 112 and the second crush molding surface 113 are both present, they may be provided symmetrically or asymmetrically.

In this embodiment, the first crushing and molding surface 112 and the second crushing and molding surface 113 are first steps of the sinking groove on the second template 120. The first crushing molding surface 112, the first transition surface molding surface 121, the first lifting molding surface 122, the second lifting molding surface 123, the third lifting molding surface 124, the second transition surface molding surface 125 and the second crushing molding surface 113 are connected in sequence. The first crushing molding surface 112 or/and the second crushing molding surface 113 is one of a plane, a curved surface, a serrated surface and a corrugated surface, and in the utility model, the first crushing molding surface 112 and the second crushing molding surface 113 are both set to be a plane.

The included angle between the first crushing molding surface 112 and the first transition surface molding surface 121 is 90-180 degrees; preferably 135 to 180. The included angle between the second transition surface forming surface 125 and the second crushing forming surface 113 is 90-180 degrees, and preferably 135-180 degrees.

The specific value of the dimension in the embodiment is specifically selected according to the size design of the wear-resistant lining plate, namely, the dimension of the cylinder body in the semi-autogenous mill.

Example 3

In this embodiment, the structure of the triangular wear-resistant lining plate-forming swaged seat 100 of the semi-autogenous mill is substantially the same as that of embodiment 1, except that the upper and lower positions of the first die plate 110 and the second die plate 120 are rotatably arranged by 180 °.

Example 4

In this embodiment, the structure of the triangular wear-resistant lining plate-forming swaged seat 100 of the semi-autogenous mill is substantially the same as that of embodiment 2, except that the upper and lower positions of the first die plate 110 and the second die plate 120 are rotatably arranged by 180 °.

Example 5

See fig. 3. Fig. 3 shows a semi-autogenous mill triangular wear liner shaped swage seat 100, the swage seat 100 including an upper seat or first die plate 110 above and a lower seat or second die plate 120 below the upper seat. The first template 110 and the second template 120 are both provided with grooves, and the first template 110 and the second template 120 enclose to form a triangular wear-resistant lining plate molding die cavity.

The triangular wear lining plate forming die cavity comprises a crushing die cavity 11 forming a crushing part and a lifting die cavity 12 forming a lifting part. In this embodiment, the crushing cavity 11 and the lifting cavity 12 are both located in the second template 120. In this embodiment, the crushing cavity 11 and the lifting cavity 12 are one cavity, and are named according to their different functions.

Referring to fig. 3, the first mold plate 110 has a mounting molding surface 111 thereon. The installation molding surface 111 can be one of a plane, an arc surface, a sawtooth surface or a corrugated surface, and a plurality of convex strips can be arranged on the installation molding surface to form a groove on the liner plate installation surface. The mounting molding surface 111 is provided with a groove, and when the lining plate is assembled, a part of gap is reserved between the lining plate and the mill outer cylinder body, so that the mounting is convenient. Fig. 3 illustrates the case where the mounting surface of the lining board is a curved surface, that is, an arc-shaped groove is formed on the lower bottom surface of the first form 110.

Referring to fig. 3, the crushing cavity 11 and the lifting cavity 12 are an integral groove opened upward, the bottom surface of the lifting cavity 12 is arc-shaped, and the cross section of the lifting cavity 12 is mastoid, similar to a triangle, having three vertexes and three sides, but the lines of the three sides are not straight lines.

The lifting mold cavity 12 includes a lifting molding surface forming a lifting surface of the lining plate and a transition surface molding surface between the lifting molding surface and the crushing molding surface, and specifically includes a first transition surface molding surface 121, a first lifting molding surface 122, a second lifting molding surface 123, a third lifting molding surface 124 and a second transition surface molding surface 125 connected in sequence. The second lifting forming surface 123 is the lifting top forming surface of the backing plate and is also the lowermost part of the lifting cavity 12. The second mold plate 120 is further provided with a crushing molding surface, which includes a first crushing molding surface 112 and a second crushing molding surface 113 located at two sides of the lifting mold cavity 12.

In this embodiment, the first transition surface forming surface 121 and the first crushing forming surface 112 form a curved surface C, a conducting line of the curved surface C is a line segment cut on an ellipse, and the first transition surface forming surface 121 and the first lifting forming surface 122 are in smooth transition connection. The second transition surface forming surface 125 and the second crushing forming surface 113 form a curved surface D, a conducting line of the curved surface D is a line segment cut on an ellipse, and the second transition surface forming surface 125 is in smooth transition connection with the second lifting forming surface 124.

Example 6

See fig. 4. See fig. 4. Fig. 4 shows a semi-autogenous mill triangular wear liner shaped swage seat 100, the swage seat 100 including an upper seat or first die plate 110 above and a lower seat or second die plate 120 below the upper seat. The first template 110 and the second template 120 are both provided with grooves, and the first template 110 and the second template 120 enclose to form a triangular wear-resistant lining plate molding die cavity.

The triangular wear lining plate forming die cavity comprises a crushing die cavity 11 forming a crushing part and a lifting die cavity 12 forming a lifting part. In this embodiment, the crushing cavity 11 and the lifting cavity 12 are both located in the second template 120. In this embodiment, the crushing cavity 11 and the lifting cavity 12 are one cavity, and are named according to their different functions.

Referring to fig. 4, the first mold plate 110 has a mounting molding surface 111 thereon. The installation molding surface 111 can be one of a plane, an arc surface, a sawtooth surface or a corrugated surface, and a plurality of convex strips can be arranged on the installation molding surface to form a groove on the liner plate installation surface. The mounting molding surface 111 is provided with a groove, and when the lining plate is assembled, a part of gap is reserved between the lining plate and the mill outer cylinder body, so that the mounting is convenient. Fig. 4 shows the case where the mounting surface of the liner is a curved surface, that is, an arc-shaped groove is formed on the lower bottom surface of the first form 110.

Referring to fig. 4, the crushing cavity 11 and the lifting cavity 12 are an integral groove opened upward, the bottom surface of the lifting cavity 12 is arc-shaped, and the cross section of the lifting cavity 12 is mastoid, similar to a triangle, having three vertexes and three sides, but the lines of the three sides are not straight lines.

The lifting cavity 12 includes lifting forming surfaces forming the lifting surfaces of the liner plate, and more particularly, includes a first transition surface forming surface 121, a first lifting forming surface 122, a second lifting forming surface 123, a third lifting forming surface 124, and a second transition surface forming surface 125 connected in series. The second lifting forming surface 123 is the lifting top forming surface of the backing plate and is also the lowermost part of the lifting cavity 12.

The first transition surface forming surface 121 is a curved surface a, a lead of the curved surface a is a line segment cut from an ellipse or a circle, and the first crushing forming surface 112, the first transition surface forming surface 121 and the first lifting forming surface 122 are connected in sequence in a smooth transition manner; the second transition surface forming surface 125 is a curved surface B, a conducting wire of the curved surface B is a line segment cut on an ellipse or a circle, and the second crushing forming surface 113, the second transition surface forming surface 125 and the third lifting forming surface 124 are connected in sequence in a smooth transition manner. In this embodiment, the conducting wires of the curved surfaces a and B are line segments cut from an ellipse.

Example 7

This embodiment is a liner plate forging embodiment, that is, an embodiment of the present invention for using the triangular wear-resistant liner plate forming forging seat of the semi-autogenous mill. This example is based on the specific application of examples 1, 2, 5, 6. Specifically, example 2 will be described.

The alloy is cast into steel ingots by smelting and refining processes, and is sent to a forging press by heating, and a conventional forging machine is adopted to parallel an upper seat and a lower seat, and the steel ingots are initially forged into required round forging stocks. And then the original base of the forging machine is changed into a second template with the length of the second template according to embodiment 2, the upper seat is changed into a first template according to embodiment 2, the length of the second template is larger than that of the first template, the first template is lifted after the first template is subjected to pressure forming, the second template gradually moves forwards by adopting the mutual matching of the free stroke of the machine and a mechanical arm, the first template is subjected to pressure forming again, the whole lining plate is ensured not to deviate at a straight line position, the length of the lining plate extends to about 3m and is taken out, and different lengths are cut according to requirements after the pressure forming is finished.

The production process of the wear-resistant lining plate by adopting the forging seat with the die comprises the following steps: the method comprises the steps of firstly adopting two upper and lower planes of free forging to complete at least two-upsetting and two-drawing processes such as upsetting, drawing and the like, refining crystal grains, changing the state of inclusion cores, forging internal defects and eliminating segregation to complete a first section, and directly replacing a first template with a cambered surface and a second template with a triangular groove after the rough forging.

And then obtaining a forging with the shape by pressing and deforming the first template and the second template in the cavity. The base which is freely forged is adopted to be gradually forged, drawn and formed for multiple times in the transverse direction. As the transverse width of the upper seat of the free forging machine is about 500mm, the base is about 1m, the length of the lining plate is more than 1m, and the length direction is formed by forging, drawing and forming for multiple times in a transverse mode step by using the stroke of the base.

And after forging and forming the forging stock, carrying out mechanical forming processing, wherein the original hoisting ring can be formed by welding, or the hoisting ring is directly removed and changed into a second template with one or more holes punched in the middle, and the size of the hole is freely controlled according to the size. The problem that the original hoisting ring cannot be used due to abrasion after use is solved, and the problem that the large-section hardenability of the semi-autogenous grinding forging lining plate is low is solved.

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 and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.

Claims (4)

1. A semi-autogenous mill triangle wear-resisting welt shaping forging mould, wherein include first template and second template set up vertically, and the triangle wear-resisting welt shaping die cavity between second template and the first template; the triangular wear-resistant lining plate forming die cavity comprises a crushing die cavity for forming a crushing part and a lifting die cavity for forming a lifting part; the cross section of the lifting die cavity is triangular; the first template comprises an installation molding surface forming a lining plate installation surface, the second template comprises a lifting molding surface forming a lining plate lifting surface, and the second template comprises a crushing molding surface forming a crushing surface; the crushing forming surfaces comprise a first crushing forming surface and a second crushing forming surface, and the lifting forming surfaces comprise a first lifting forming surface, a second lifting forming surface and a third lifting forming surface which are connected in sequence; a first transition surface forming surface is arranged between the first crushing forming surface and the first lifting forming surface, a second transition surface forming surface is arranged between the second crushing forming surface and the third lifting forming surface, and the first crushing forming surface, the first transition surface forming surface, the first lifting forming surface, the second lifting forming surface, the third lifting forming surface, the second transition surface forming surface and the second crushing forming surface are sequentially connected; the second lifting forming surface is a lifting top surface forming surface;

the first transition surface forming surface is a plane, and an included angle between the first crushing forming surface and the first transition surface forming surface is 90-180 degrees; the included angle between the first transition surface forming surface and the first lifting forming surface is 135-180 degrees; the second transition surface forming surface is a plane, and an included angle between the second transition surface forming surface and the second crushing forming surface is 90-180 degrees; the included angle between the third lifting forming surface and the second transition surface forming surface is 135-180 degrees;

or the first transition surface forming surface is a curved surface A, a lead of the curved surface A is a line segment cut from an ellipse or a circle, and the first crushing forming surface, the first transition surface forming surface and the first lifting forming surface are connected in sequence in a smooth transition manner; the second transition surface forming surface is a curved surface B, a lead of the curved surface B is a line segment cut on an ellipse or a circle, and the second crushing forming surface, the second transition surface forming surface and the third lifting forming surface are connected in sequence in a smooth transition manner;

or the first transition surface forming surface and the first crushing forming surface form a curved surface C, a lead of the curved surface C is a line segment cut on an ellipse, and the first transition surface forming surface is in smooth transition connection with the first lifting forming surface; the second transition surface forming surface and the second crushing forming surface form a curved surface D, a lead of the curved surface D is a line segment cut on an ellipse, and the second transition surface forming surface is in smooth transition connection with the second lifting forming surface;

the triangle is a triangle-like.

2. The semi-autogenous mill triangular wear liner swaged mold of claim 1, wherein the first die plate is located above the second die plate or the second die plate is located above the first die plate.

3. The semi-autogenous mill triangular wear-resistant liner plate forming and forging die as claimed in claim 1, wherein the mounting forming surface is one of a plane, an arc surface, a sawtooth surface and a corrugated surface, or the mounting forming surface is further provided with a convex strip.

4. The semi-autogenous mill triangular wear liner swage mold of claim 1, wherein the crushing cavity is in a first die plate or the crushing cavity is in a second die plate.

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