Wear-resistant steel ball skew rolling mill roller assembly

Abstract

The utility model relates to the field, in particular to a roller assembly of a wear-resistant steel ball skew rolling mill, and aims to solve the technical problem that when high-temperature steel balls fall on a guide platform, the temperature of the steel balls is not reduced, and the steel balls are collided and deformed in the falling and rolling processes. The diameters of the head ends of the spiral rollers in the conveying direction of the conveyor are gradually increased till the middle intersection position is the maximum diameter value, the roller shaft at the tail end in the conveying direction of the conveyor is arranged in a hollow mode, a cold water circulation mechanism is arranged in the hollow channel, and the hollow channel extends to the middle intersection position of the two spiral rollers from the tail end of the roller shaft. After a bar is rolled into balls at the middle intersection of the two spiral rollers, the temperature of the rear half parts of the spiral rollers is reduced under the action of the cold water circulating mechanism, the high-temperature steel balls are pre-cooled in advance, the steel balls do not deform after falling, the quality of the steel balls is improved, and as the cold water circulating mechanism does not extend to the front half parts of the spiral rollers, the influence on rolling of the steel balls is small.

Description

Technical Field

[0001] The utility model relates to a field, in particular to a roller assembly of a wear-resistant steel ball oblique rolling mill. Background Art

[0002] The steel ball oblique rolling mill is a device specially used for producing steel balls. It adopts the oblique rolling process, that is, it works through two rollers that are not parallel but cross each other. The rollers rotate synchronously around their respective axes, and rely on contact friction to drive the rolled piece, that is, the future steel ball, to rotate forward. This rolling method is also called spiral rolling. The steel ball oblique rolling mill is suitable for rolling steel balls made of medium carbon steel, low alloy steel and medium alloy steel.

[0003] In the prior art, when rolling steel balls, the high-temperature steel balls fall onto the guide platform. Since the temperature of the steel balls does not decrease, the steel balls may be deformed due to collisions during the falling and rolling process, thus affecting the quality. The utility model solves the above problem. Utility Model Content

[0004] In order to solve the technical problem that in the prior art, when rolling steel balls, high-temperature steel balls fall onto a guide platform, and because the temperature of the steel balls is not reduced, the steel balls are deformed and bumped during the falling and rolling processes, thus affecting the quality, the utility model provides a wear-resistant steel ball inclined rolling mill roller assembly.

[0005] A wear-resistant steel ball oblique rolling mill roller assembly comprises: a roller shaft, a spiral roller connected to the roller shaft, the two spiral rollers are not parallel and cross in the middle, the diameter of the spiral roller head end gradually increases along the conveying direction of the conveyor until the diameter is maximum at the middle intersection, the roller shaft at the end along the conveying direction of the conveyor is hollow, a cold water circulation mechanism is arranged in the hollow channel, and the hollow channel extends from the end of the roller shaft to the middle intersection of the two spiral rollers.

[0006] Furthermore, the cold water circulation mechanism includes a cooling pipe, which is rotatably connected to the hollow channel of the roller shaft. A cooling channel is provided in the cooling pipe. A baffle is connected to the cooling pipe. The other end of the baffle extends into the cooling channel and leaves a gap with the end of the cooling channel. The cooling channels on both sides of the baffle are respectively connected to two liquid pipes. The liquid pipes at the upper parts of the two cooling pipes are connected to the liquid inlet pipes, and the liquid pipes at the lower parts of the two cooling pipes are connected to the liquid drain pipes. The liquid inlet pipe and the liquid drain pipe are respectively connected to the liquid inlet and liquid outlet ends of the cooling liquid circulation system.

[0007] Beneficial effects of the utility model:

[0008] After the bar is rolled into balls at the intersection of the two spiral rollers, the temperature of the rear half of the spiral rollers is reduced under the action of the cold water circulation mechanism, and the high-temperature steel balls are pre-cooled in advance, so that the steel balls will not be deformed after falling, thereby improving the quality of the steel balls. Since the cold water circulation mechanism does not extend to the front half of the spiral rollers, it has little effect on the rolling of the steel balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of the structure of the present utility model Figure 1 ;

[0010] Figure 2 is a schematic diagram of the structure of the present utility model Figure 2 ;

[0011] Figure 3 is a schematic cross-sectional view of the structure of the present utility model.

[0012] In the figure: roll shaft 1; spiral roll 2; cold water circulation mechanism 3; cooling pipe 31; cooling channel 32; baffle 33; liquid pipe 34; liquid inlet pipe 35; liquid discharge pipe 36. Specific embodiments

[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0014] In the present device, the so-called rotational connection means that the bearing is baked and installed on the shaft, and a spring retaining ring groove is provided on the shaft or the shaft hole. The axial fixation of the bearing is realized by clamping the elastic retaining ring in the retaining ring groove to achieve rotation; the so-called hinge connection means a connection method that moves on connecting parts such as hinges, pin shafts, and short shafts.

[0015] The present utility model will be described in detail below in conjunction with the accompanying drawings.

[0016] Embodiment 1:

[0017] Next, in combination with the attached Figures 1-3 This embodiment will illustrate a roll assembly of a wear-resistant steel ball skew rolling mill, including: a roll shaft 1, a spiral roll 2 is connected to the roll shaft 1, the two spiral rolls 2 are not parallel and cross in the middle. Along the conveying direction of the conveyor, the diameter of the head end of the spiral roll 2 gradually increases until the middle crossing point is the maximum diameter. The roll shaft 1 at the end along the conveying direction of the conveyor is hollow, and a cold water circulation mechanism 3 is provided in the hollow channel. The hollow channel extends from the end of the roll shaft 1 to the middle crossing point of the two spiral rolls 2;

[0018] The bar stock is conveyed into the space between the two spiral rollers 2 by a conveyor. Since the diameter of the first end of the spiral roller 2 gradually increases along the conveying direction of the conveyor until it reaches the maximum value at the central intersection, the first end of the bar stock is rolled into a ball at the central intersection of the spiral roller 2 under the action of the spiral roller 2. The temperature of the second half of the spiral roller 2 is reduced under the action of the cold water circulation mechanism 3, pre-cooling the high-temperature steel balls in advance, so that the steel balls do not deform after falling, improving the quality of the steel balls. Since the cold water circulation mechanism 3 does not extend to the first half of the spiral roller 2, the influence on the rolling of the steel balls is small.

[0019] The cold water circulation mechanism 3 includes a cooling pipe 31 which is rotatably connected in the hollow channel of the roller shaft 1. A cooling channel 32 is provided in the cooling pipe 31. A baffle 33 is connected in the cooling pipe 31. The other end of the baffle 33 extends into the cooling channel 32 and there is a gap with the end of the cooling channel 32. The cooling channels 32 on both sides of the baffle 33 are respectively communicated with two liquid pipes 34. The liquid pipes 34 on the upper parts of the two cooling pipes 31 are communicated with a liquid inlet pipe 35. The liquid pipes 34 on the lower parts of the two cooling pipes 31 are communicated with a liquid discharge pipe 36. The liquid inlet pipe 35 and the liquid discharge pipe 36 are respectively connected with the liquid inlet and outlet ends of the coolant circulation system.

[0020] The liquid discharge end of the coolant circulation system is communicated with the liquid inlet pipe 35. Then the coolant is shunted through the liquid pipe 34 into the cooling channels 32 of the two cooling pipes 31. The cold water first enters one side of the baffle 33 and is guided along the baffle 33 to the central intersection of the spiral roller 2, and then flows into the other side of the baffle 33 through the gap at the end of the baffle 33, and finally enters the liquid discharge pipe 36 through the lower liquid pipe 34 and returns to the coolant circulation system. In this way, the heat of the second half of the spiral roller 2 is taken away, completing the pre-cooling of the steel balls.

[0021] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0022] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant steel ball inclined rolling mill roller assembly, comprising: The roller shaft (1) is connected to a spiral roller (2), the two spiral rollers (2) are not parallel and cross in the middle, and the diameter of the spiral rollers (2) gradually increases along the conveying direction of the conveyor until the diameter is the maximum at the intersection in the middle. The invention is characterized in that the roller shaft (1) at the end along the conveying direction of the conveyor is hollow, a cold water circulation mechanism (3) is arranged in the hollow channel, and the hollow channel extends from the end of the roller shaft (1) to the middle intersection of the two spiral rollers (2).

2. The wear-resistant steel ball skew rolling mill roller assembly according to claim 1, characterized in that: The cold water circulation mechanism (3) comprises a cooling pipe (31), the cooling pipe (31) is rotatably connected to the hollow channel of the roller shaft (1), a cooling channel (32) is arranged in the cooling pipe (31), a baffle (33) is connected to the cooling pipe (31), the other end of the baffle (33) extends into the cooling channel (32) and a gap is left with the end of the cooling channel (32), the cooling channels (32) on both sides of the baffle (33) are respectively connected to two liquid pipes (34), the liquid pipes (34) at the upper parts of the two cooling pipes (31) are connected to the liquid inlet pipe (35), the liquid pipes (34) at the lower parts of the two cooling pipes (31) are connected to the liquid discharge pipe (36), and the liquid inlet pipe (35) and the liquid discharge pipe (36) are respectively connected to the liquid inlet and liquid outlet ends of the cooling liquid circulation system.

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