High-speed steel working roll with fatigue damage resistance function

Abstract

The utility model relates to the technical field of high-speed steel working rolls, in particular to a high-speed steel working roll with a fatigue damage resistance function, which comprises a working frame, and two working rolls are rotatably connected to the inner side of the working frame; the cooling mechanism is arranged on one side of the working frame; wherein the cooling mechanism comprises two transfer pipes which are fixedly connected to the inner wall of the working roller, the surfaces of the transfer pipes fixedly communicate with flow pipes which are annularly distributed, one end of each transfer pipe communicates with a water pipe, and one end of each water pipe fixedly communicates with a water pump; according to the device, cold water flows on the inner side and the outer side of the working roller to absorb heat by utilizing the flow pipe, the water pipe, the transfer pipe and the water pump, so that the inner side and the outer side of the working roller are cooled, the temperature difference between the surface and the interior of the working roller is reduced, the surface deformation condition of the working roller is reduced, and the fatigue damage resistance function of the high-speed steel working roller is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed steel working rolls, in particular to a high-speed steel working roll with anti-fatigue and anti-breakage function. Background Art

[0002] High-speed steel work rolls are a type of working component commonly used in metal processing and rolling processes. They are usually used in cold rolling, hot rolling, shearing, molding and other processes. These work rolls usually need to have high hardness, high thermal strength, high wear resistance and good thermal shock resistance to cope with working requirements under high load, high speed and harsh working environment.

[0003] After searching, the Chinese patent "A rust-free rapid cooling device for high-speed steel rolls" authorization announcement number "CN217528695U" realizes spray cooling of the two roll surfaces below the nozzle through a cooling medium storage box, an upper spray cooling manifold and a nozzle, ensuring that the surface of the water-cooled rolls will not rust, while also having the advantage of rapid water cooling.

[0004] However, the high-speed steel working roll will be affected by high temperature during operation. Rapid cooling of the surface of the high-speed steel working roll will lead to a large temperature difference between the surface and the inside, which may cause deformation of the working roll surface and reduce the anti-fatigue and anti-breakage effect of the high-speed steel working roll.

[0005] Therefore, a high-speed steel working roll with anti-fatigue and anti-breakage function is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-speed steel working roll with anti-fatigue and anti-breakage function in order to solve the above-mentioned problems, improve the problem that rapid cooling of the surface of the high-speed steel working roll will lead to a large temperature difference between the surface and the interior, which may cause deformation of the working roll surface.

[0007] The utility model achieves the above-mentioned purpose through the following technical schemes: a high-speed steel working roll with anti-fatigue and damage function, comprising: a working frame, the inner side of which is rotatably connected with two working rolls; a cooling mechanism, which is arranged on one side of the working frame; wherein the cooling mechanism comprises two transfer pipes fixedly connected to the inner wall of the working roll, the surface of the transfer pipe is fixedly connected with annularly distributed flow pipes, one end of the transfer pipe is connected with a water pipe, one end of the water pipe is fixedly connected with a water pump, and one side of the working frame is provided with a water cooler and a water tank, one of the water inlet ends of the water pumps penetrates the working frame and is fixedly connected with the water tank, and the water outlet end of the other water pump is fixedly connected with one side of the water cooler, and the water cooler is fixedly connected with the opposite side of the water tank. By using the flow pipe, the water pipe, the transfer pipe and the water pump, the cold water flows and absorbs heat on the inner and outer sides of the working roll, thereby realizing the cooling of the inner and outer sides of the working roll, reducing the large temperature difference between the surface and the interior, thereby reducing the deformation of the surface, and improving the anti-fatigue and damage function of the high-speed steel working roll.

[0008] Preferably, the surface of the flow tube is connected with a plurality of shunt tubes, the surface of the shunt tube is curved in an arc shape and the plurality of shunt tubes are threaded progressively, and the transfer tube, flow tube and shunt tube are all copper components. By using the shunt tube and the flow tube, the cold water can flow evenly in the working roll to absorb heat, ensuring more uniform cooling of the working roll, avoiding local overcooling or overheating of the working roll, and improving the effect of water cooling of the working roll.

[0009] Preferably, a sealing bearing is fixedly connected to the inner wall of the transfer pipe, one end of the surface of the water pipe is fixedly connected to the inner edge of the sealing bearing, and the outer edge of the sealing bearing is fixedly connected to the inner wall of the working roller. By using the sealing bearing, the working roller will not drive the water pipe to rotate during rotation, thereby reducing the probability of damage to the water pipe and ensuring the service life of the water pipe.

[0010] Preferably, a blocking frame is embedded in the water inlet of the water tank and the water outlet of one of the water pumps, and a filter frame is slidably connected to the inner wall of the blocking frame. The filter frame is used to filter the water in the water tank and the water cooler, preventing impurities in the water from entering the transfer pipe, flow pipe and water cooler, thereby ensuring the water cooling effect on the working rolls.

[0011] Preferably, a connecting block is fixedly connected to the front end of the filter frame, the surface of the connecting block is a rubber component, and a magnetic hole is opened at the front end of the connecting block.

[0012] Preferably, a placement block is fixedly connected to the top of the water cooler, the surface of the placement block is a magnet component, and the inner wall of the magnetic hole is clamped and attracted to the surface of the placement block with opposite poles.

[0013] Preferably, the inner wall of the placement block is slidably connected to a limiting rod, and the surface of the limiting rod is snap-connected to the inner wall of the connection block.

[0014] Preferably, one end of the limit rod is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the placement block. The spring, the limit rod and the connection block are used to realize the disassembly and cleaning of the filter frame in the blocking frame, thereby ensuring the filtering efficiency of the filter frame.

[0015] The beneficial effects of the utility model are:

[0016] 1. By using flow pipes, water pipes, transfer pipes and water pumps, cold water can flow inside and outside the working roll to absorb heat, thereby cooling the inside and outside of the working roll, reducing the temperature difference between the surface and the inside, thereby reducing the deformation of the surface and improving the fatigue resistance of the high-speed steel working roll;

[0017] 2. By using the shunt pipe and flow pipe, the cold water can evenly flow and absorb heat in the working roll, ensuring more uniform cooling of the working roll, avoiding local overcooling or overheating of the working roll, and improving the water cooling effect of the working roll. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a cross-sectional view of the working roll of the utility model;

[0020] Figure 3 This is a schematic diagram of the cooling mechanism structure of the utility model;

[0021] Figure 4 for Figure 2 A is an enlarged view of the middle image.

[0022] In the figure: 1, working frame; 2, working roller; 3, cooling mechanism; 31, transfer pipe; 32, flow pipe; 33, water pipe; 34, water pump; 35, spring; 36, water tank; 37, water cooler; 38, diverter pipe; 39, sealed bearing; 310, blocking frame; 311, filter frame; 312, connecting block; 313, placement block; 314, limit rod. DETAILED DESCRIPTION

[0023] 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.

[0024] When implementing: Figure 1-4 As shown, a high-speed steel working roll with fatigue resistance function comprises: a working frame 1, two working rolls 2 are rotatably connected to the inner side of the working frame 1; a cooling mechanism 3, the cooling mechanism 3 is arranged on one side of the working frame 1; wherein the cooling mechanism 3 comprises two transfer pipes 31 fixedly connected to the inner wall of the working roll 2, the surface of the transfer pipe 31 is fixedly connected to a flow pipe 32 distributed in an annular manner, one end of the transfer pipe 31 is connected to a water pipe 33, one end of the water pipe 33 is fixedly connected to a water pump 34, a water cooler 37 and a water tank 36 are arranged on one side of the working frame 1, and a water inlet end of one water pump 34 is connected to the water inlet end of the water pump 34. It passes through the working frame 1 and is fixedly connected to the water tank 36. The water outlet end of another water pump 34 is fixedly connected to one side of the water cooler 37. The water cooler 37 is fixedly connected to the opposite side of the water tank 36. The surface of the flow tube 32 is connected with a plurality of branch pipes 38. The surface of the branch pipe 38 is curved in an arc shape and multiple branch pipes 38 are threadedly progressive. The transfer pipe 31, the flow pipe 32 and the branch pipe 38 are all copper components. The inner wall of the transfer pipe 31 is fixedly connected with a sealed bearing 39. One end of the surface of the water pipe 33 is fixedly connected to the inner edge of the sealed bearing 39. The outer edge of the sealed bearing 39 is fixedly connected to the inner wall of the working roll 2.

[0025] When the working roll 2 needs to be cooled, the power switches of the water pump 34 and the water cooler 37 are manually turned on. The water inlet end of one of the water pumps 34 draws cold water from the water tank 36 and flows to one of the water pipes 33 through the water outlet end. One of the water pipes 33 flows to each flow pipe 32 through one of the transfer pipes 31. The cold water in the flow pipe 32 flows to the branch pipe 38. Because the multiple branch pipes 38 are threaded and progressive, and the multiple flow pipes 32 are distributed in an annular shape, because the transfer pipe 31, the flow pipe 32 and the branch pipe 38 are all The copper component allows the cold water to flow evenly inside the working roll 2 and absorb its heat, cool the inside and surface, and avoid a large temperature difference between the inside and outside of the working roll 2. The water inlet end of another water pump 34 draws the cooled water in another transfer pipe 31 and transports it to the water cooler 37. The water cooler 37 cools the water and then transports it to the water tank 36, so that the water can circulate on the working roll 2 to absorb heat. When there is no need to cool the working roll 2, manually turn off the power switches of the water pump 34 and the water cooler 37.

[0026] like Figure 4As shown, the water inlet end of the water tank 36 and the water outlet end of one of the water pumps 34 are both embedded with a blocking frame 310, the inner wall of the blocking frame 310 is slidably connected with a filter frame 311, the front end of the filter frame 311 is fixedly connected with a connecting block 312, the surface of the connecting block 312 is a rubber component, and a magnetic hole is opened at the front end of the connecting block 312, the top of the water cooler 37 is fixedly connected with a placement block 313, the surface of the placement block 313 is a magnet component, the inner wall of the magnetic hole is clamped and attracted to the surface of the placement block 313 with opposite poles, the inner wall of the placement block 313 is slidably connected with a limiting rod 314, the surface of the limiting rod 314 is clamped with the inner wall of the connecting block 312, one end of the limiting rod 314 is fixedly connected with a spring 35, and the other end of the spring 35 is fixedly connected to the inner wall of the placement block 313.

[0027] The magnetic hole is the north pole, and the placement block 313 is the south pole. Between the placement block 313 and the magnetic hole, the south pole and the north pole will attract each other because the magnetic field will make the north pole move toward the south pole, thus forming a magnetic attraction.

[0028] When water needs to be poured into the water tank 36, the water is filtered through one of the filter frames 311 and then flows into the water tank 36, preventing impurities in the water from flowing into the transfer pipe 31, the flow pipe 32 and the diversion pipe 38. The water in the water outlet of one of the water pumps 34 is filtered through another filter frame 311 and then flows into the water cooler 37, preventing impurities in the water from flowing into the water cooler 37. When the filter frame 311 needs to be cleaned, the limit rod 314 is pulled, and then the connecting block 312 is pulled to separate the filter frame 311 from the blocking frame 314. 10, the filter frame 311 can be cleaned. After cleaning, the filter frame 311 is pushed to slide into the blocking frame 310, so that the connecting block 312 is in contact with the front end of the blocking frame 310. Since the surface of the connecting block 312 is a rubber component, the sealing of the front end of the blocking frame 310 is guaranteed. The elastic force of the spring 35 pushes the limit rod 314 to be clamped in the connecting block 312, and the magnetic hole on the connecting block 312 is adsorbed on the placement block 313, so that the filter frame 311 is fixed in the blocking frame 310.

[0029] When the utility model is in use, the power switches of the water pump 34 and the water cooler 37 are manually turned on, the water inlet end of one of the water pumps 34 draws cold water in the water tank 36 and flows to one of the water pipes 33 through the water outlet end, one of the water pipes 33 flows to each flow pipe 32 through one of the transfer pipes 31, the cold water in the flow pipe 32 flows to the shunt pipe 38, because the multiple shunt pipes 38 are threaded and progressive, and the multiple flow pipes 32 are distributed in an annular shape, because the transfer pipe 31, the flow pipe 32 and the shunt pipe 38 are all copper components, the cold water flows evenly on the inside of the working roll 2 and absorbs its heat, cools the inside and the surface, and avoids a large temperature difference between the inside and outside of the working roll 2, the water inlet end of the other water pump 34 draws the cooled water in the other transfer pipe 31 and transports it to the water cooler 37, the water cooler 37 cools the water and then transports it to the water tank 36, so that the water can circulate on the working roll 2 to absorb heat.

[0030] It should be noted that the working roll 2, water pump 34, water cooler 37 and sealed bearing 39 in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the working roll 2, water pump 34 and water cooler 37 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-speed steel working roll with fatigue resistance, characterized in that: include: A working frame (1), wherein two working rollers (2) are rotatably connected to the inner side of the working frame (1); A cooling mechanism (3), wherein the cooling mechanism (3) is arranged on one side of the working frame (1); The cooling mechanism (3) comprises two transfer pipes (31) fixedly connected to the inner wall of the working roll (2); the surface of the transfer pipe (31) is fixedly connected to a flow pipe (32) distributed in an annular manner; one end of the transfer pipe (31) is connected to a water pipe (33); one end of the water pipe (33) is fixedly connected to a water pump (34); a water cooler (37) and a water tank (36) are provided on one side of the working frame (1); a water inlet end of one of the water pumps (34) passes through the working frame (1) and is fixedly connected to the water tank (36); a water outlet end of the other water pump (34) is fixedly connected to one side of the water cooler (37); and the water cooler (37) is fixedly connected to the opposite side of the water tank (36).

2. The high-speed steel working roll with fatigue resistance function according to claim 1, characterized in that: The surface of the flow tube (32) is connected to a plurality of shunt tubes (38), the surface of the shunt tube (38) is curved in an arc shape and the plurality of shunt tubes (38) are threadedly arranged progressively, and the transfer tube (31), the flow tube (32) and the shunt tube (38) are all copper components.

3. The high-speed steel working roll with fatigue resistance function according to claim 1, characterized in that: The inner wall of the transfer pipe (31) is fixedly connected to a sealing bearing (39), one end of the surface of the water pipe (33) is fixedly connected to the inner edge of the sealing bearing (39), and the outer edge of the sealing bearing (39) is fixedly connected to the inner wall of the working roll (2).

4. The high-speed steel working roll with fatigue resistance function according to claim 1 is characterized in that: A blocking frame (310) is embedded and installed at the water inlet end of the water tank (36) and the water outlet end of one of the water pumps (34), and a filter frame (311) is slidably connected to the inner wall of the blocking frame (310).

5. The high-speed steel working roll with fatigue resistance function according to claim 4 is characterized in that: A connection block (312) is fixedly connected to the front end of the filter frame (311); the surface of the connection block (312) is a rubber component; and a magnetic hole is provided at the front end of the connection block (312).

6. The high-speed steel working roll with fatigue resistance function according to claim 5, characterized in that: A placement block (313) is fixedly connected to the top of the water cooler (37); the surface of the placement block (313) is a magnetic component; the inner wall of the magnetic hole is clamped and attracted to the surface of the placement block (313) with opposite poles.

7. The high-speed steel working roll with fatigue resistance function according to claim 6 is characterized in that: The inner wall of the placement block (313) is slidably connected to a limiting rod (314), and the surface of the limiting rod (314) is clamped on the inner wall of the connection block (312).

8. The high-speed steel working roll with fatigue resistance function according to claim 7, characterized in that: One end of the limiting rod (314) is fixedly connected to a spring (35), and the other end of the spring (35) is fixedly connected to the inner wall of the placement block (313).

Images