A roll for aluminum casting

Abstract

The utility model provides a kind of roll for aluminum casting and rolling, it is related to casting and rolling equipment technical field, including: roll, the center of both ends of roll is fixedly connected with mounting column, the inside of one of the mounting column is opened with water inlet groove one to one end of roll, the one side fixed connection of water inlet groove one inner chamber has water column one. The utility model, open roll cooling system, cooling liquid passes water inlet groove one, water inlet shunt groove one, snake type heat sink one and water outlet groove one in turn, finally from water outlet converging groove two discharge, another cooling liquid passes water inlet groove two, water inlet shunt groove two, snake type heat sink two and water outlet groove two in turn, finally from water outlet converging groove one discharge, such design two reverse flowing cooling liquid in roll form temperature complement, neutralize local hot spot, improve the uniformity of roll surface temperature, while bidirectional cooling makes thermal stress more evenly distributed in roll body, reduce thermal stress peak.

Description

Technical Field

[0001] This utility model relates to the field of casting and rolling equipment technology, and in particular to a roll for aluminum casting and rolling. Background Technology

[0002] Casting and rolling aluminum products is a mature existing process. As a common process for aluminum products, rolls are common equipment and tools. The quality of rolls is a key factor affecting product quality. A lot of heat is generated during the casting and rolling process. Cooling tanks are opened inside the rolls and connected to an external cooling liquid circulation system to cool the rolls.

[0003] However, in the existing technology, some aluminum casting and rolling rolls use traditional unidirectional cooling inside, and the coolant gradually heats up along the flow direction, resulting in a large temperature difference between the roll inlet side and the outlet side, which leads to poor uniformity of roll surface temperature. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rolling mill roll for aluminum casting, comprising: a rolling mill roll, wherein mounting columns are fixedly connected to the center of both ends of the rolling mill roll, and a water inlet groove is formed inside one of the mounting columns and at one end of the rolling mill roll, wherein a water outlet column is fixedly connected to one side of the inner cavity of the water inlet groove, and a water outlet collection groove is formed inside the water outlet column and at one end of the rolling mill roll, wherein a plurality of water inlet diversion grooves are formed circumferentially at equal intervals on one side of the inner cavity of the water inlet groove, wherein the plurality of water inlet diversion grooves are located inside the rolling mill roll, and a serpentine heat dissipation groove is formed at the other end of the inner cavity of the plurality of water inlet diversion grooves, wherein the plurality of serpentine heat dissipation grooves are distributed circumferentially at equal intervals inside the sidewall edge of the rolling mill roll.

[0006] Furthermore, a second water inlet groove is provided inside the other mounting column and at the other end of the roller. A second water outlet column is fixedly connected to one side of the inner cavity of the second water inlet groove, and a second water outlet collection groove is provided inside the second water outlet column and at the other end of the roller.

[0007] Furthermore, a plurality of water outlet channels 2 are circumferentially and equidistantly provided on one side of the inner cavity of the water outlet collection channel 1. The plurality of water outlet channels 2 are located inside the roll, and the plurality of water inlet channels 1 are located on the outer side of the plurality of water outlet channels 2 and close to the edge of one side of the roll.

[0008] Furthermore, a plurality of water inlet diversion channels 2 are circumferentially and equally spaced on one side of the inner cavity of the water inlet channel 2, and a plurality of water outlet channels 1 are circumferentially and equally spaced on one side of the inner cavity of the water outlet converging channel 2. The plurality of water outlet channels 1 and the plurality of water inlet diversion channels 2 are all located inside the roll, and the plurality of water inlet diversion channels 2 are located on the outer side of the plurality of water outlet channels 1 and close to the edge of the other side of the roll.

[0009] Furthermore, each of the two inner cavities of the multiple water inlet diversion channels is provided with a serpentine heat dissipation channel, and the multiple serpentine heat dissipation channels are distributed equidistantly around the inside of the edge of the roll sidewall.

[0010] Furthermore, the inner cavities of the plurality of water inlet diversion channels one, the plurality of serpentine heat dissipation channels one, and the plurality of water outlet channels one are correspondingly connected, and the inner cavities of the plurality of water inlet diversion channels two, the plurality of serpentine heat dissipation channels two, and the plurality of water outlet channels two are correspondingly connected.

[0011] Furthermore, the plurality of serpentine heat dissipation slots one and the plurality of serpentine heat dissipation slots two are arranged alternately.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] In this invention, when the roll cooling system is opened, the coolant sequentially passes through the first inlet water tank, the first inlet water diversion tank, the first serpentine heat dissipation tank, and the first outlet water tank, and finally exits from the second outlet water collection tank. Another stream of coolant sequentially passes through the second inlet water tank, the second inlet water diversion tank, the second serpentine heat dissipation tank, and the second outlet water tank, and finally exits from the first outlet water collection tank. This design creates a temperature complementarity between the two streams of coolant flowing in opposite directions within the roll, neutralizing local hot spots and improving the uniformity of the roll surface temperature. At the same time, bidirectional cooling makes the thermal stress distribution more uniform inside the roll body, avoiding microcracks caused by stress concentration at the outlet end during unidirectional cooling, and reducing the peak thermal stress. Attached Figure Description

[0014] Figure 1 This utility model provides an overview structural diagram of an aluminum casting and rolling roll.

[0015] Figure 2 A front sectional view of an aluminum casting and rolling roll provided by this utility model;

[0016] Figure 3 Cross-sectional views of a serpentine heat dissipation groove one and a serpentine heat dissipation groove two for an aluminum casting and rolling roll provided by this utility model;

[0017] Figure 4 A cross-sectional view of the water inlet diversion groove of an aluminum casting and rolling mill roll provided by this utility model;

[0018] Figure 5 This utility model provides a two-section view of the water outlet groove of an aluminum casting and rolling mill roll.

[0019] Legend:

[0020] 1. Roller; 101. Mounting column; 102. Water inlet trough one; 103. Water outlet column one; 104. Water outlet collection trough one; 105. Water inlet trough two; 106. Water outlet column two; 107. Water outlet collection trough two; 2. Water inlet diversion trough one; 201. Water outlet trough one; 202. Water inlet diversion trough two; 203. Water outlet trough two; 3. Snake-shaped heat dissipation trough one; 301. Snake-shaped heat dissipation trough two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a roll for aluminum casting and rolling, comprising: a roll 1, with mounting columns 101 fixedly connected to the center of both ends of the roll 1, a water inlet groove 102 opened inside one of the mounting columns 101 and one end of the roll 1, a water outlet column 103 fixedly connected to one side of the inner cavity of the water inlet groove 102, a water outlet collection groove 104 opened inside the inner cavity of the water outlet column 103 and one end of the roll 1, a plurality of water inlet diversion grooves 2 are circumferentially and equidistantly opened on one side of the inner cavity of the water inlet groove 102, the plurality of water inlet diversion grooves 2 are located inside the roll 1, and a serpentine heat dissipation groove 3 is opened at the other end of the inner cavity of the plurality of water inlet diversion grooves 2, the plurality of serpentine heat dissipation grooves 3 are distributed equidistantly around the inner edge of the side wall of the roll 1.

[0023] Specifically: When the roll cooling system is turned on, the coolant flows sequentially through inlet water tank 102, inlet water diversion tank 2, serpentine heat dissipation tank 3, and outlet water tank 201, and finally exits from outlet water collection tank 2 107. Another stream of coolant flows sequentially through inlet water tank 2 105, inlet water diversion tank 2 202, serpentine heat dissipation tank 2 301, and outlet water tank 2 203, and finally exits from outlet water collection tank 104. This design creates a temperature complementarity between the two counter-flowing coolants inside the roll, neutralizing local hot spots and improving the uniformity of the roll surface temperature. At the same time, bidirectional cooling makes the thermal stress distribution more even inside the roll body, avoiding micro-cracks caused by stress concentration at the outlet end during unidirectional cooling, and reducing the peak thermal stress. The depth of outlet water collection tank 104 is greater than that of inlet water tank 102 to avoid mutual interference between inlet water diversion tank 2 and outlet water tank 2 203.

[0024] In one embodiment, a water inlet groove 105 is provided inside the other mounting column 101 and at the other end of the roller 1. A water outlet column 106 is fixedly connected to one side of the inner cavity of the water inlet groove 105. A water outlet collection groove 107 is provided inside the water outlet column 106 and at the other end of the roller 1.

[0025] Specifically, such as Figure 2 As shown: the depth of the outlet water collection channel 2 107 is greater than that of the inlet water channel 2 105, so as to avoid the outlet water channel 1 201 and the inlet water diversion channel 2 202 from affecting each other.

[0026] In one embodiment, a plurality of water outlet channels 203 are circumferentially and equidistantly provided on one side of the inner cavity of the water outlet collection channel 104. The plurality of water outlet channels 203 are located inside the roller 1, and a plurality of water inlet channels 2 are located on the outer side of the plurality of water outlet channels 203 and close to the edge of one side of the roller 1.

[0027] Specifically, such as Figure 2 As shown: the inlet water distribution channel 12 and the outlet water channel 203 are staggered to facilitate connection with the staggered serpentine heat dissipation channel 13 and serpentine heat dissipation channel 201.

[0028] In one embodiment, a plurality of water inlet diversion channels 202 are circumferentially and equally spaced on one side of the inner cavity of the water inlet channel 2 105, and a plurality of water outlet channels 201 are circumferentially and equally spaced on one side of the inner cavity of the water outlet converging channel 2 107. The plurality of water outlet channels 201 and the plurality of water inlet diversion channels 202 are all located inside the roller 1, and the plurality of water inlet diversion channels 202 are located on the outer side of the plurality of water outlet channels 201 and close to the edge of the other side of the roller 1.

[0029] Specifically, such as Figure 2 As shown: the water outlet channel 1 201 and the water inlet channel 2 202 are staggered to facilitate connection with the staggered serpentine heat dissipation channel 1 3 and serpentine heat dissipation channel 2 301.

[0030] In one embodiment, the other end of the inner cavity of the multiple water inlet diversion channels 202 is provided with a serpentine heat dissipation channel 301, and the multiple serpentine heat dissipation channels 301 are distributed in a circumferential and equidistant manner inside the side wall edge of the roll 1.

[0031] Specifically, such as Figure 2 As shown: Coolant enters the serpentine heat sink 301 from the inlet diversion channel 202.

[0032] In one embodiment, the inner cavities of multiple inlet diversion channels 2, multiple serpentine heat dissipation channels 3, and multiple outlet channels 201 are connected to each other, and the inner cavities of multiple inlet diversion channels 202, multiple serpentine heat dissipation channels 301, and multiple outlet channels 203 are connected to each other.

[0033] Specifically, such as Figure 2-5As shown: the coolant passes through the inlet tank 102, the inlet diversion tank 2, the serpentine heat sink 3 and the outlet tank 201 in sequence, and is finally discharged from the outlet collection tank 2 107. Another stream of coolant passes through the inlet tank 2 105, the inlet diversion tank 2 202, the serpentine heat sink 2 301 and the outlet tank 2 203 in sequence, and is finally discharged from the outlet collection tank 104.

[0034] In one embodiment, a plurality of serpentine heat sinks 3 and a plurality of serpentine heat sinks 301 are arranged alternately.

[0035] Specifically, such as Figure 3 As shown: the serpentine heat dissipation groove 1 3 and the serpentine heat dissipation groove 2 301 are designed in a serpentine shape to increase the area for heat exchange with the surface of the roll 1 and improve the cooling efficiency of the surface of the roll 1.

[0036] Working principle: The mounting columns 101 at both ends of the aluminum casting and rolling roll are mounted on the aluminum casting and rolling mill via bearings. Then, a driven gear is fixedly sleeved on the surface of one of the mounting columns 101. The driven gear of the motor drives the driven gear to drive the aluminum casting and rolling roll. The water inlet tank 102 and the water outlet collection tank 104 are connected through a coaxial double-channel rotary joint. The water inlet tank 102 is connected to a coolant inlet pipe, and the water outlet collection tank 104 is connected to a coolant outlet pipe. The water inlet tank 2 105 and the water outlet collection tank 2 107 are connected through a coaxial double-channel rotary joint. The water inlet tank 2 105 is connected to a coolant inlet pipe, and the water outlet collection tank 2 107 is connected to a coolant outlet pipe. The coaxial double-channel rotary joint is a commonly used connection structure, and its specific structure will not be described here.

[0037] When the roll cooling system is turned on, the coolant flows sequentially through the inlet water tank 102, the inlet water diversion tank 2, the serpentine heat dissipation tank 3, and the outlet water tank 201, and is finally discharged from the outlet water collection tank 2 107. Another stream of coolant flows sequentially through the inlet water tank 2 105, the inlet water diversion tank 2 202, the serpentine heat dissipation tank 2 301, and the outlet water tank 2 203, and is finally discharged from the outlet water collection tank 104.

[0038] This design creates a temperature complementarity between the two counter-flowing coolants inside the roller, neutralizing local hot spots and improving the uniformity of roller surface temperature. At the same time, bidirectional cooling makes the thermal stress distribution more even inside the roller body, avoiding microcracks caused by stress concentration at the water outlet during unidirectional cooling and reducing the peak thermal stress.

Claims

1. An aluminum calender roll characterized by, include: Roll (1), with mounting columns (101) fixedly connected at the center of both ends of the roll (1), and a water inlet groove (102) is opened inside the mounting column (101) and at one end of the roll (1). A water outlet column (103) is fixedly connected to one side of the inner cavity of the water inlet groove (102). A water outlet collection groove (104) is opened inside the water outlet column (103) and at one end of the roll (1). Multiple water inlet diversion grooves (2) are opened circumferentially and equidistantly on one side of the inner cavity of the water inlet groove (102). The multiple water inlet diversion grooves (2) are located inside the roll (1). A serpentine heat dissipation groove (3) is opened at the other end of the inner cavity of the multiple water inlet diversion grooves (2). The multiple serpentine heat dissipation grooves (3) are distributed equidistantly around the inner edge of the side wall of the roll (1).

2. The roll for aluminum cast-rolling according to claim 1, characterized by: Another mounting column (101) has a water inlet groove (105) inside and at the other end of the roller (1). A water outlet column (106) is fixedly connected to one side of the inner cavity of the water inlet groove (105). A water outlet collection groove (107) is provided inside the water outlet column (106) and at the other end of the roller (1).

3. The roll for aluminum cast-rolling according to claim 1, characterized in that: The inner cavity of the water collection channel 1 (104) is provided with multiple water outlet channels 2 (203) at equal intervals around the circumference. The multiple water outlet channels 2 (203) are located inside the roller (1). The multiple water inlet channels 1 (2) are located on the outer side of the multiple water outlet channels 2 (203) and close to the edge of the roller (1).

4. The roll for aluminum cast-rolling according to claim 2, characterized by: The inner cavity of the second water inlet groove (105) is provided with multiple water inlet diversion grooves (202) at equal intervals around the circumference on one side. The inner cavity of the second water outlet groove (107) is provided with multiple water outlet grooves (201) at equal intervals around the circumference on one side. The multiple water outlet grooves (201) and the multiple water inlet diversion grooves (202) are all located inside the roller (1). The multiple water inlet diversion grooves (202) are located on the outer side of the multiple water outlet grooves (201) and close to the edge of the other side of the roller (1).

5. The roll for aluminum cast-rolling according to claim 4, characterized in that: The other end of the inner cavity of the multiple water inlet diversion channels (202) is provided with a serpentine heat dissipation channel (301), and the multiple serpentine heat dissipation channels (301) are distributed in a circumferential and equidistant manner inside the side wall edge of the roll (1).

6. The roll for aluminum cast-rolling according to claim 4, characterized by: The inner cavities of the multiple water inlet diversion channels 1 (2), the multiple serpentine heat dissipation channels 1 (3) and the multiple water outlet channels 1 (201) are connected to each other, and the inner cavities of the multiple water inlet diversion channels 2 (202), the multiple serpentine heat dissipation channels 2 (301) and the multiple water outlet channels 2 (203) are connected to each other.

7. The roll for aluminum cast-rolling according to claim 3, wherein: The multiple snake-shaped heat sinks (3) and the multiple snake-shaped heat sinks (301) are arranged alternately.

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