High-wear-resistance special-shaped welded pipe mold

Abstract

The utility model provides a high wear-resistant special-shaped welded pipe mould which comprises a first wear-resistant shell, a second wear-resistant shell, a first wear-resistant layer and a second wear-resistant layer, the first wear-resistant shell is installed on the upper side of the annular side face of a welded pipe mould body, the first wear-resistant layer is sprayed on the outer surface of the first wear-resistant shell, and the second wear-resistant layer is sprayed on the outer surface of the second wear-resistant layer. In the using process of the welded pipe mold body, the first wear-resistant shell and the second wear-resistant shell which are made of wear-resistant alloy steel are good in wear resistance, and wear caused by direct contact between the welded pipe mold body and an external special-shaped pipe is avoided, so that the service life and the replacement period of the welded pipe mold body are prolonged, and the production efficiency is improved. And meanwhile, the first wear-resisting layer and the second wear-resisting layer which are made of wear-resisting coatings can further improve the wear-resisting capacity of the outer surfaces of the first wear-resisting shell and the second wear-resisting shell, so that workers do not need to replace the welded pipe mold regularly, and the use cost of a machining enterprise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welded pipe moulds, in particular to a highly wear-resistant special-shaped welded pipe mould. Background Art

[0002] Special-shaped pipes are seamless steel pipes made of various shapes by cold drawing. According to the different cross-sectional shapes and sizes of the pipes, they can be divided into equal wall thickness special-shaped seamless steel pipes, unequal wall thickness special-shaped seamless steel pipes, and variable diameter special-shaped seamless steel pipes. When processing special-shaped pipes, a welding pipe mold is required to process them.

[0003] Publication number "CN210497966U" provides a welding pipe mold for processing special-shaped welded pipes. The welding pipe mold and the top plate are threadedly connected through fixed columns, and the bottom plate is connected with a disassembly column. The welding pipe mold and the top plate are respectively provided with a circular disassembly hole and a square disassembly groove, which makes the disassembly and replacement of the welding pipe mold more convenient, saves resources, and reduces unnecessary trouble for personnel.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Although the welding pipe mold used for processing special-shaped welded pipes is convenient to disassemble and replace, since there is no corresponding wear-resistant structure on the outer surface of the welding pipe mold, the outer surface of the welding pipe mold is prone to wear after being used for a period of time during actual use. At this time, the staff is required to replace the welding pipe mold, thereby increasing the use cost of the processing enterprise. Although some welding pipe molds in the prior art are sprayed with a wear-resistant coating on their surface to improve wear resistance, the welding pipe mold still needs to be replaced when the wear-resistant coating is worn out, which is not practical. Utility Model Content

[0006] The utility model aims to provide a highly wear-resistant special-shaped welded pipe die to solve the problems raised in the above background technology.

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

[0008] A highly wear-resistant special-shaped welded pipe mold comprises a support shaft and a welded pipe mold body, wherein the support shaft is inserted inside the welded pipe mold body, a wear-resistant component is arranged on the outer surface of the welded pipe mold body, and the wear-resistant component is used to improve the wear resistance of the outer surface of the welded pipe mold body, and installation components are arranged on both sides of the wear-resistant component, and the installation components enable the wear-resistant component and the welded pipe mold body to be detachable.

[0009] Preferably, the wear-resistant component includes a first wear-resistant shell, a second wear-resistant shell, a first wear-resistant layer and a second wear-resistant layer. The first wear-resistant shell is installed on the upper side of the annular side of the welded pipe mold body, and the first wear-resistant layer is sprayed on the outer surface of the first wear-resistant shell. The second wear-resistant shell is installed on the lower side of the annular side of the welded pipe mold body, and the second wear-resistant layer is sprayed on the outer surface of the second wear-resistant layer.

[0010] Preferably, a limiting block is provided on the front side of the lower end surface of the first wear-resistant shell, and a limiting groove is provided on the front side of the upper end surface of the second wear-resistant shell, and the limiting groove matches the limiting block.

[0011] Preferably, the mounting assembly includes a fixing ring, an internal thread, a positioning screw, a first external thread and a second external thread, fixing rings are installed on the left and right sides of the outer surfaces of the first wear-resistant shell and the second wear-resistant shell, a positioning screw is installed on the upper side of the inner part of the fixing ring, an internal thread is provided on the inner annular side of the fixing ring, a first external thread is provided on the left and right sides of the outer surface of the first wear-resistant shell, and a second external thread is provided on the left and right sides of the outer surface of the second wear-resistant shell.

[0012] Preferably, a fixing threaded through hole is opened on the upper side of the annular side surface of the fixing ring, and the fixing threaded through hole matches the positioning screw, and the internal thread matches the first external thread and the second external thread respectively.

[0013] Preferably, a positioning key is clamped on the right side of the inside of the welding pipe mold body, a limit stop ring is sleeved on the left side of the annular side of the support shaft, and a fixing bolt is installed inside the limit stop ring.

[0014] Preferably, the first wear-resistant shell and the second wear-resistant shell are both made of wear-resistant alloy steel, the first wear-resistant shell and the second wear-resistant shell match the welding pipe mold body, and the first wear-resistant layer and the second wear-resistant layer are both made of wear-resistant coating.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the process of using the welded pipe mold body, the first wear-resistant shell and the second wear-resistant shell made of wear-resistant alloy steel not only have good wear resistance, but also avoid direct contact between the welded pipe mold body and the external special-shaped pipe to cause wear, thereby improving the service life and replacement cycle of the welded pipe mold body. At the same time, the wear resistance of the first wear-resistant layer and the second wear-resistant layer made of wear-resistant coating can further improve the wear resistance of the outer surfaces of the first wear-resistant shell and the second wear-resistant shell, so that the staff does not need to regularly replace the welded pipe mold, thereby reducing the use cost of the processing enterprise;

[0017] 2. The utility model can loosen the positioning screw, and then the fixing ring can be loosened and disassembled by rotating it counterclockwise, and the first wear-resistant shell and the second wear-resistant shell can be disassembled and replaced separately, so that the wear-resistant components can be replaced separately, and the practicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a structural diagram of the utility model after the installation components and wear-resistant components are disassembled;

[0020] Figure 3 It is a cross-sectional front view of the installation component and the wear-resistant component in the utility model;

[0021] Figure 4 This is a structural diagram of the wear-resistant component in the utility model;

[0022] Figure 5 It is a structural diagram of the fixing ring in the utility model.

[0023] In the figure: 1. support shaft; 2. welding pipe mold body; 3. installation assembly; 31. fixing ring; 32. internal thread; 33. positioning screw; 34. first external thread; 35. second external thread; 36. positioning key; 37. limit stop ring; 371. fixing bolt; 38. fixing threaded through hole; 4. wear-resistant assembly; 41. first wear-resistant shell; 42. second wear-resistant shell; 43. first wear-resistant layer; 44. second wear-resistant layer; 45. limit groove; 46. limit block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A highly wear-resistant special-shaped welded pipe mold comprises a support shaft 1 and a welded pipe mold body 2. The support shaft 1 is inserted inside the welded pipe mold body 2, and the support shaft 1 supports the welded pipe mold body 2. Since the internal detailed structure and working principle of the welded pipe mold body 2 are relatively mature technologies in the prior art, they will not be described in detail here. A wear-resistant component 4 is provided on the outer surface of the welded pipe mold body 2, and the wear-resistant component 4 is used to improve the wear resistance of the outer surface of the welded pipe mold body 2. Installation components 3 are provided on both sides of the wear-resistant component 4, and the installation component 3 enables the wear-resistant component 4 and the welded pipe mold body 2 to be detachable.

[0028] The wear-resistant component 4 includes a first wear-resistant shell 41, a second wear-resistant shell 42, a first wear-resistant layer 43 and a second wear-resistant layer 44. The first wear-resistant shell 41 is installed on the upper side of the annular side of the welded pipe mold body 2. The first wear-resistant shell 41 is made of wear-resistant alloy steel. The first wear-resistant shell 41 made of wear-resistant alloy steel has high strength, hardness, toughness and wear resistance under wear conditions. The outer surface of the first wear-resistant shell 41 is sprayed with a first wear-resistant layer 43. The first wear-resistant layer 43 is made of wear-resistant coating. The first wear-resistant layer 43 made of wear-resistant coating has good wear resistance, thereby further improving the wear resistance of the outer surface of the first wear-resistant shell 41. The second wear-resistant shell 42 is installed on the lower side of the annular side of the welded pipe mold body 2. The second wear-resistant shell 42 is made of wear-resistant alloy steel. The second wear-resistant shell 42 made of wear-resistant alloy steel has high strength, hardness, toughness and wear resistance under wear conditions.

[0029] The first wear-resistant shell 41 and the second wear-resistant shell 42 match the welding pipe mold body 2. The first wear-resistant shell 41 and the second wear-resistant shell 42 matched with the welding pipe mold body 2 avoid direct contact between the welding pipe mold body 2 and the external special-shaped pipe to cause wear, thereby improving the service life and replacement cycle of the welding pipe mold body 2. The outer surface of the second wear-resistant layer 44 is sprayed with a second wear-resistant layer 44. The material of the second wear-resistant layer 44 is a wear-resistant coating. The second wear-resistant layer 44 made of a wear-resistant coating has a good wear-resistant effect, thereby further improving the wear resistance of the outer surface of the second wear-resistant shell 42. A limit card is set on the front side of the lower end face of the first wear-resistant shell 41 Block 46, the limit block 46 is connected to the first wear-resistant shell 41 by welding, and a limit groove 45 is provided on the front side of the upper end face of the second wear-resistant shell 42, and the limit groove 45 matches the limit block 46. The matching limit groove 45 and limit block 46 prevent the first wear-resistant shell 41 and the second wear-resistant shell 42 from being misaligned during assembly. The inner walls of the first wear-resistant shell 41 and the second wear-resistant shell 42 are both provided with first anti-slip textures. The first anti-slip textures make the inner walls of the first wear-resistant shell 41 and the second wear-resistant shell 42 more anti-slip, thereby preventing the first wear-resistant shell 41 and the second wear-resistant shell 42 from easily slipping with the welded pipe mold body 2.

[0030] Embodiment 2:

[0031] On the basis of Example 1, in this embodiment, by loosening the positioning screw 33, the fixing ring 31 can be loosened and disassembled by rotating counterclockwise to separate the internal thread 32 from the first external thread 34 and the second external thread 35. At this time, the first wear-resistant shell 41 and the second wear-resistant shell 42 can be disassembled and replaced separately, so that the wear-resistant component 4 has the ability to be replaced separately.

[0032] The mounting assembly 3 includes a fixing ring 31, an internal thread 32, a positioning screw 33, a first external thread 34 and a second external thread 35. The fixing ring 31 is installed on both sides of the outer surfaces of the first wear-resistant shell 41 and the second wear-resistant shell 42. The fixing ring 31 will fix the assembled first wear-resistant shell 41 and the second wear-resistant shell 42. A positioning screw 33 is installed on the upper side of the inner part of the fixing ring 31. The positioning screw 33 will fix the fixing ring 31. The inner annular side surface of the fixing ring 31 is provided with an internal thread 32, and the internal thread 32 matches the first external thread 34 and the second external thread 35 respectively. The first external thread 34 is provided on both sides of the outer surface of the first wear-resistant shell 41, and the second external thread 35 is provided on both sides of the outer surface of the second wear-resistant shell 42. The internal thread 32 matching the first external thread 34 and the second external thread 35 facilitates the fixing ring 31 to be fixed to the left and right ends of the first wear-resistant shell 41 and the second wear-resistant shell 42 by threaded connection.

[0033] A fixing threaded through hole 38 is provided on the upper side of the annular side surface of the fixing ring 31, and the fixing threaded through hole 38 matches the positioning screw 33. The fixing threaded through hole 38 facilitates the positioning screw 33 to be fixed on the inner upper side of the fixing ring 31. A positioning key 36 is clamped on the right side of the welding pipe mold body 2. The positioning key 36 prevents slippage between the welding pipe mold body 2 and the support shaft 1, so that the welding pipe mold body 2 and the support shaft 1 can rotate together. A limiting retaining ring 37 is set on the left side of the annular side surface of the support shaft 1. The limiting retaining ring 37 will limit and block the welding pipe mold body 2 set on the annular side surface of the support shaft 1 to prevent the welding pipe mold body 2 from deviating left and right during use. A fixing bolt 371 is installed inside the limiting retaining ring 37. The fixing bolt 371 facilitates the staff to disassemble and assemble the limiting retaining ring 37. The annular side surface of the fixing ring 31 is provided with a second anti-slip texture. The second anti-slip texture makes the annular side surface of the fixing ring 31 more anti-slip, so that the staff can rotate and disassemble the fixing ring 31 by hand.

[0034] Working principle: During the use of the welded pipe mold body 2, the first wear-resistant shell 41 and the second wear-resistant shell 42, both made of wear-resistant alloy steel, have good wear resistance and avoid direct contact between the welded pipe mold body 2 and the external special-shaped pipe to cause wear, thereby improving the service life and replacement cycle of the welded pipe mold body 2. At the same time, the first wear-resistant layer 43 made of wear-resistant coating can further improve the wear resistance of the outer surface of the first wear-resistant shell 41, and the second wear-resistant layer 44 made of wear-resistant coating can further improve the wear resistance of the outer surface of the second wear-resistant shell 42. At the same time, The matching limit groove 45 and the limit block 46 prevent the first wear-resistant shell 41 and the second wear-resistant shell 42 from being misaligned during assembly, and the fixing ring 31 fixes the assembled first wear-resistant shell 41 and the second wear-resistant shell 42, and the positioning screw 33 fixes the fixing ring 31, thereby preventing the first wear-resistant shell 41 and the second wear-resistant shell 42 from loosening and separating during use, and the positioning key 36 enables the welding pipe mold body 2 to rotate together with the support shaft 1, and the limit ring 37 prevents the welding pipe mold body 2 from being offset to the left and right during use.

[0035] When the first wear-resistant shell 41 and the second wear-resistant shell 42 need to be disassembled and replaced, the staff first loosens the positioning screw 33 with the help of an external wrench, and then rotates the fixing ring 31 counterclockwise to loosen and disassemble it. When the fixing ring 31 is separated from the first wear-resistant shell 41 and the second wear-resistant shell 42, the first wear-resistant shell 41 and the second wear-resistant shell 42 can be disassembled and replaced separately (refer to Figure 2 ), when the staff removes the fixing bolt 371 with the help of an external wrench, the limit ring 37 can be moved outward for removal, and the welding pipe mold body 2 can be moved left for removal.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly wear-resistant special-shaped welded pipe mold, comprising a support shaft (1) and a welded pipe mold body (2), characterized in that: A support shaft (1) is inserted into the welded pipe mold body (2); a wear-resistant component (4) is arranged on the outer surface of the welded pipe mold body (2); and the wear-resistant component (4) is used to improve the wear resistance of the outer surface of the welded pipe mold body (2); installation components (3) are arranged on both sides of the wear-resistant component (4); and the installation components (3) enable the wear-resistant component (4) and the welded pipe mold body (2) to be detachable.

2. The high wear-resistant special-shaped welded pipe mold according to claim 1, characterized in that: The wear-resistant component (4) comprises a first wear-resistant shell (41), a second wear-resistant shell (42), a first wear-resistant layer (43) and a second wear-resistant layer (44); the first wear-resistant shell (41) is installed on the upper side of the annular side of the welded pipe mold body (2); the first wear-resistant layer (43) is sprayed on the outer surface of the first wear-resistant shell (41); the second wear-resistant shell (42) is installed on the lower side of the annular side of the welded pipe mold body (2); the second wear-resistant layer (44) is sprayed on the outer surface of the second wear-resistant layer (44).

3. A highly wear-resistant special-shaped welded pipe mold according to claim 2, characterized in that: A limiting block (46) is provided on the front side of the lower end face of the first wear-resistant shell (41), and a limiting groove (45) is provided on the front side of the upper end face of the second wear-resistant shell (42), and the limiting groove (45) matches the limiting block (46).

4. The high wear-resistant special-shaped welded pipe mold according to claim 2, characterized in that: The mounting assembly (3) comprises a fixing ring (31), an internal thread (32), a positioning screw (33), a first external thread (34) and a second external thread (35); the fixing ring (31) is installed on both the left and right sides of the outer surface of the first wear-resistant shell (41) and the second wear-resistant shell (42); the positioning screw (33) is installed on the upper side of the inner part of the fixing ring (31); the inner annular side surface of the fixing ring (31) is provided with an internal thread (32); the first external thread (34) is provided on both the left and right sides of the outer surface of the first wear-resistant shell (41); and the second external thread (35) is provided on both the left and right sides of the outer surface of the second wear-resistant shell (42).

5. The high wear-resistant special-shaped welded pipe mold according to claim 4, characterized in that: A fixing threaded through hole (38) is provided on the upper side of the annular side surface of the fixing ring (31), and the fixing threaded through hole (38) matches the positioning screw (33), and the internal thread (32) matches the first external thread (34) and the second external thread (35) respectively.

6. The high wear-resistant special-shaped welded pipe mold according to claim 1, characterized in that: A positioning key (36) is clamped on the right side of the welded pipe mold body (2), and a limit stop ring (37) is sleeved on the left side of the annular side surface of the support shaft (1), and a fixing bolt (371) is installed inside the limit stop ring (37).

7. The high wear-resistant special-shaped welded pipe mold according to claim 2, characterized in that: The first wear-resistant shell (41) and the second wear-resistant shell (42) are both made of wear-resistant alloy steel, the first wear-resistant shell (41) and the second wear-resistant shell (42) match the welding pipe mold body (2), and the first wear-resistant layer (43) and the second wear-resistant layer (44) are both made of wear-resistant coating.

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