Quenching roller structure

Abstract

The utility model discloses a quenching roller structure, which relates to the technical field of metal melt-spinning, and comprises a roller shaft assembly and a hollow roller wheel assembly sleeved on the outer side of the roller shaft assembly, the roller shaft assembly comprises a first roller shaft assembly, a second roller shaft assembly and a connecting shaft, and the first roller shaft assembly and the second roller shaft assembly are symmetrically arranged at two ends of the connecting shaft in a sealing and inserting mode. The connecting shaft is sleeved with the hollow roller assembly in a sealed mode. The first roller shaft assembly and the second roller shaft assembly are hollow shafts and are communicated with a cooling chamber in the hollow roller wheel assembly, a water distribution part dividing the cooling chamber into a left cavity and a right cavity is arranged in the cooling chamber, the left cavity and the right cavity are communicated with each other, and the water distribution part is arranged on the connecting shaft in a sleeving mode. The roller shaft is reasonable in design, the roller shaft is of a three-section assembly type structure, the cooling chamber is divided into two cooling chambers by the water dividing part, and the two cooling chambers are directly communicated without hindrance. And the cooling effect of the quenching roller is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal fling band technical field, more specifically relates to a kind of quenching roller structure technical field. BACKGROUND

[0002] Under the condition of rapid cooling, metal solidification can make alloy element continue to maintain high solubility in solid matrix, while inhibiting the growth of grain structure, and alloy composition and organization become more uniform. Its working principle is: the amorphous mother alloy melt in crucible is sprayed to the water-cooled fling band roll rotating rapidly through the small hole or gap at the bottom of fling band crucible, and the alloy melt is strongly cooled and flung to form thin strip.

[0003] In the rapid solidification process, the heat of the metal liquid is mainly conducted and dissipated through the contact of the quenching roller, so the cooling capacity of the quenching roller directly affects the quality of the amorphous strip and the fling band efficiency. At present, the most commonly used quenching roller cooling water is "straight-through type gap waterway", the cooling water is introduced from one end of the fling band roller, flows out from the other end through the circular gap waterway of the shaft. This kind of way improves the flow rate of circulating water into the inside, but reduces the flow rate, and the cooling effect of the cooling roller is poor. In addition, most of the common quenching rollers adopt an integrated structure, which has high assembly difficulty and high manufacturing cost, and is not easy to change the size in production. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at: in order to solve the technical problems of poor cooling effect of quenching roller, single structure and assembly difficulty, the utility model provides a kind of quenching roller structure.

[0005] The utility model discloses a kind of quenching roller structures to achieve the above-mentioned purposes specifically using the following technical solutions:

[0006] The utility model provides a kind of quenching roller structure, including roller shaft subassembly, hollow roller subassembly of being set in the outside of roller shaft subassembly, roller shaft subassembly includes roller shaft subassembly one, roller shaft subassembly two and roller shaft subassembly three, roller shaft subassembly three is connecting shaft, roller shaft subassembly one and roller shaft subassembly two structure are same, roller shaft subassembly one and roller shaft subassembly two are symmetrically set in the both ends of connecting shaft by sealed plug-in mode, hollow roller subassembly is sealed and set in the outside of connecting shaft;

[0007] Roller shaft subassembly one and roller shaft subassembly two are all hollow shaft, roller shaft subassembly one and roller shaft subassembly two are all communicated with the internal cooling chamber of hollow roller subassembly, the water distribution part that is divided into left chamber and right chamber is provided in cooling chamber, left chamber and right chamber are communicated with each other, water distribution part is set on connecting shaft.

[0008] In an embodiment, the left and right sides of the connecting shaft are provided with plug-in holes, the roller shaft subassembly one and the roller shaft subassembly two are plugged into the corresponding plug-in holes by interference fit, and the hollow roller subassembly is sealed and fixed on the connecting shaft by bolt connection.

[0009] Specifically, the fit between the two hollow shafts (roller shaft assembly one and roller shaft assembly two) and the connecting shaft (roller shaft assembly three) is an interference fit, and the connection between the roller shaft assemblies is a bolt connection.

[0010] In one embodiment, the end of the roller shaft assembly one away from the connecting shaft is the water inlet, and the end of the roller shaft assembly one close to the connecting shaft is provided with a plurality of first water outlets in the circumferential direction, which are in communication with the cooling chamber.

[0011] In one embodiment, the end of the roller shaft assembly two away from the connecting shaft is the water outlet, and the end of the roller shaft assembly two close to the connecting shaft is provided with a plurality of second water outlets in the circumferential direction, which are in communication with the cooling chamber.

[0012] In one embodiment, all the first water outlets are evenly distributed on the right end of the side wall of the roller shaft assembly one, and all the second water outlets are evenly distributed on the left end of the side wall of the roller shaft assembly two; the connecting shaft is provided with cooling chamber water inlet holes in communication with each first water outlet and each second water outlet.

[0013] The first water outlet and the second water outlet are both square water outlets, and the first water outlet and the second water outlet are staggered at an angle of 30°.

[0014] Specifically, the water inlet and the water outlet are distributed at the openings of the two hollow shafts, and two sets of square water outlets are evenly distributed on the shaft surface of the assembled roller shaft assembly, located on both sides of the water distribution part and staggered at an angle of 30°.

[0015] In one embodiment, the hollow roller assembly includes a hollow molybdenum sleeve, two roller baffle plates detachably arranged on the left and right sides of the hollow molybdenum sleeve, and a through hole for cooperating with the connecting shaft is arranged in the middle of each roller baffle plate, and the two roller baffle plates, the hollow molybdenum sleeve and the connecting shaft form a cooling chamber.

[0016] Specifically, the cooling chamber is formed by splicing the two roller baffle plates and the hollow molybdenum sleeve, and is locked by a sealing ring and a bolt, and an O-shaped sealing ring is arranged at the connection to enhance the sealing effect of the cooling chamber.

[0017] In one embodiment, a sealing ring is arranged at the contact between each roller baffle plate and the hollow molybdenum sleeve.

[0018] In one embodiment, the water distribution part includes a water distribution ring, a baffle plate one and a baffle plate two detachably arranged on the left and right sides of the water distribution ring, and a through hole for mounting the connecting shaft is arranged in the middle of each baffle plate.

[0019] The roller is assembled on the shaft, and the roller is composed of a roller baffle plate and a hollow molybdenum sleeve, and the inside is a large cooling chamber, which is divided into two sub-chambers by a water distribution part, and the water distribution part is composed of a water distribution ring and a baffle plate one and a baffle plate two, and the two baffle plates (baffle plate one and baffle plate two) are respectively assembled on both sides of the water distribution ring.

[0020] In one embodiment, the outer diameter of the water distribution ring is smaller than the inner diameter of the hollow molybdenum sleeve, and the water distribution ring and the hollow molybdenum sleeve form an annular flow channel communicating the left chamber and the right chamber.

[0021] In one embodiment, the first water passage and the second water passage are both six.

[0022] The working process is as follows: the cooling liquid enters the roller shaft assembly one at the water inlet of the roller shaft assembly one, passes through the six square water passages uniformly distributed on the ring shaft surface, the square water passage on the roller shaft assembly one is the same as the water passage on the connecting shaft, the square cross section can have larger cooling liquid flow capacity, which is beneficial to the cooling effect of the rapid cooling stick, the cooling chamber is in full contact with the inner surface of the hollow molybdenum sleeve, the cooling chamber has a more complex cavity, and the assembled structure is easier to process and manufacture than the integrated structure, thereby reducing the cost. The cooling chamber is divided into two smaller cooling chambers by the water distribution part, and an annular flow channel passes through the two cooling chambers, the cooling liquid first reaches the left chamber, then passes through the annular flow channel to reach the right chamber, and the cooling liquid can fully contact the hollow molybdenum sleeve when passing through the annular flow channel, thereby taking away heat and achieving a better cooling effect. The cooling liquid is discharged through the water outlet. In the rapid solidification process, the metal liquid directly contacts the molybdenum sleeve, and heat is transferred to the cooling liquid through the molybdenum sleeve, thereby achieving the effect of rapid cooling.

[0023] The beneficial effects of the utility model are as follows:

[0024] 1. The cooling chamber is separated by the water distribution ring, so that the water channel can completely cover the hollow molybdenum sleeve, greatly increasing the heat dissipation area and reducing the flow resistance of the cooling liquid, and the cooling effect can be effectively improved.

[0025] 2. The roller outer ring is selected to be a hollow molybdenum sleeve, the thermal conductivity of molybdenum metal is about 138 W / m, the heat conduction performance is good, and the heat conduction capacity can be effectively enhanced. The rapid cooling roller structure provided in the scheme is different from the commonly used integrated shaft, the roller shaft is a three-section assembled structure, two groups of square water passages are uniformly distributed on the roller shaft surface, and the two groups of water passages are distributed at an angle of 30°. The roller is also an assembled structure, and forms a cooling chamber in cooperation with the roller shaft, two cooling chambers are formed by the water distribution part, and the two chambers are directly communicated without obstruction. In order to further improve the cooling effect of the rapid cooling roller.

[0026] 3. By designing the structure inside the roller and the roller shaft, the water channel heat dissipation area is increased, and the structure strength can still be maintained. Such a matching structure can reduce the assembly difficulty, the structure design is simple, convenient to manufacture and process, low in cost, easy to produce and manufacture, and has better adaptability. Different roller widths can be designed according to needs to meet the needs. Large-size rapid cooling rollers can be prepared, and the production efficiency of magnesium alloy rapid quenching is improved. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Reference numerals in the attached diagram: 1-Roller assembly, 1-1-Roller assembly one, 1-2-Roller assembly two, 1-3-Roller assembly three, 2-Hollow roller assembly, 2-1-Baffle one, 2-2-Baffle two, 3-Water dividing ring, 4-Roller baffle, 5-Hollow molybdenum sleeve, 6-Sealing ring, 101-Water inlet, 102-Water outlet, 103-Cooling chamber, 104-Water outlet. Detailed Implementation

[0030] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Example 1

[0035] like Figure 1 As shown, this embodiment provides a rapid cooling roller structure, including a roller shaft assembly 1 and a hollow roller assembly 2 sleeved on the outside of the roller shaft assembly 1. The roller shaft assembly includes roller shaft assembly 1-1, roller shaft assembly 2-2 and roller shaft assembly 3-3. Roller shaft assembly 3-3 is a connecting shaft. Roller shaft assembly 1-1 and roller shaft assembly 2-2 have the same structure. Roller shaft assembly 1-1 and roller shaft assembly 2-2 are symmetrically arranged at both ends of the connecting shaft by a sealed insertion method. The hollow roller assembly 2 is sealed and sleeved on the outside of the connecting shaft.

[0036] Both roller assembly 1-1 and roller assembly 2-2 are hollow shafts. Both roller assembly 1-1 and roller assembly 2-2 are connected to the internal cooling chamber 103 of the hollow roller assembly 2. The cooling chamber 103 is provided with a water distribution part that divides the cooling chamber 103 into a left chamber and a right chamber. The left chamber and the right chamber are connected to each other. The water distribution part is sleeved on the connecting shaft.

[0037] Example 2

[0038] This embodiment is a further optimization based on Embodiment 1, specifically:

[0039] Both sides of the connecting shaft are provided with insertion holes. Roller assembly 1-1 and roller assembly 2-2 are inserted into the corresponding insertion holes by interference fit. Hollow roller assembly 2 is sealed and fixed on the connecting shaft by bolt connection.

[0040] Specifically, the two hollow shafts (roller assembly 1-1 and roller assembly 2-2) are fitted with the connecting shaft (roller assembly 3-3) using an interference fit, and the roller assemblies are connected to each other using bolts.

[0041] Example 3

[0042] This embodiment is a further optimization based on embodiment 2, specifically:

[0043] The end of the roller assembly 1-1 away from the connecting shaft is the water inlet 101, and the end of the roller assembly 1-1 near the connecting shaft is provided with a plurality of first water inlets that communicate with the cooling chamber 103 in the circumferential direction.

[0044] The roller shaft assembly two 1-2 is provided with a plurality of second water outlets 104 which are in communication with the cooling chamber 103 on the circumferential direction of the end of the roller shaft assembly two 1-2 which is close to the connecting shaft.

[0045] In one embodiment, all the first water outlets are evenly distributed on the right end of the side wall of the roller shaft assembly one 1-1, and all the second water outlets are evenly distributed on the left end of the side wall of the roller shaft assembly two 1-2; the connecting shaft is provided with water inlet holes of the cooling chamber 103 which are in communication with each first water outlet and each second water outlet.

[0046] The first water outlet and the second water outlet are both square water outlets 102, and the first water outlet and the second water outlet are staggered at an angle of 30°.

[0047] Specifically, the water inlets 101 and the water outlets 104 are distributed at the openings of the two hollow shafts, and two groups of square water outlets 102 are evenly distributed on the shaft surface of the assembled roller shaft assembly, and are located on both sides of the water distribution part and staggered at an angle of 30°.

[0048] Example 4

[0049] This embodiment is further optimized on the basis of example 3, specifically:

[0050] The hollow roller assembly 2 comprises a hollow molybdenum sleeve 5 and two roller baffles 4 which are detachably arranged on the left and right sides of the hollow molybdenum sleeve 5, the middle part of each roller baffle 4 is provided with a through hole matched with the connecting shaft, and the two roller baffles 4, the hollow molybdenum sleeve 5 and the connecting shaft form a cooling chamber 103.

[0051] Specifically, the cooling chamber 103 is formed by splicing the two roller baffles 4 and the hollow molybdenum sleeve 5, and is locked by a sealing ring and a bolt, and an O-shaped sealing ring is arranged at the connecting part to enhance the sealing effect of the cooling chamber 103.

[0052] Example 5

[0053] This embodiment is further optimized on the basis of example 3, specifically:

[0054] The hollow roller assembly 2 comprises a hollow molybdenum sleeve 5 and two roller baffles 4 which are detachably arranged on the left and right sides of the hollow molybdenum sleeve 5, the middle part of each roller baffle 4 is provided with a through hole matched with the connecting shaft, and the two roller baffles 4, the hollow molybdenum sleeve 5 and the connecting shaft form a cooling chamber 103.

[0055] A sealing ring 6 is arranged at the contact part of each roller baffle 4 and the hollow molybdenum sleeve 5.

[0056] The water distribution part comprises a water distribution ring 3, a baffle 1 2-1 and a baffle 2 2-2 which are detachably arranged on the left and right sides of the water distribution ring 3, and a through hole for mounting a connecting shaft is arranged in the middle of each of the baffle 1 2-1 and the baffle 2 2-2.

[0057] The roller is assembled on the roller shaft and is composed of a roller baffle 4 and a hollow molybdenum sleeve 5, and the inside is a large cooling chamber 103 which is divided into two sub-chambers by the water distribution part, and the water distribution part is composed of the water distribution ring 3 and the baffle 1 2-1 and the baffle 2 2-2, and the two baffles (the baffle 1 2-1 and the baffle 2 2-2) are respectively arranged on the left and right sides of the water distribution ring 3.

[0058] The outer diameter of the water distribution ring 3 is smaller than the inner diameter of the hollow molybdenum sleeve 5, and an annular flow channel which connects the left chamber and the right chamber is formed between the water distribution ring 3 and the hollow molybdenum sleeve 5.

[0059] The first water inlet and the second water inlet are both six.

[0060] The working process is as follows: the cooling liquid enters the roller shaft assembly 1 1-1 at the water inlet 101 of the roller shaft assembly 1 1-1, passes through the six square water inlets which are evenly distributed on the annular shaft surface of the roller shaft assembly 1 1-1, and enters the cooling chamber 103 and the inner surface of the hollow molybdenum sleeve 5 for full contact. The cooling chamber 103 is divided into two smaller cooling chambers 103 by the water distribution part, and an annular flow channel which passes through the two cooling chambers 103 is arranged, the cooling liquid first reaches the left chamber, then passes through the annular flow channel to reach the right chamber, and the cooling liquid can fully contact the hollow molybdenum sleeve 5 when passing through the annular flow channel, thereby taking away heat and achieving a better cooling effect. The cooling liquid is then discharged through the water outlet 104. In the rapid solidification process, the metal liquid directly contacts the molybdenum sleeve, and the heat is transferred to the cooling liquid through the molybdenum sleeve, thereby achieving the effect of rapid cooling.

Claims

1. A quench roll structure characterized by, The application relates to a hollow roller assembly, which comprises a roller shaft assembly (1), a hollow roller assembly (2) arranged outside the roller shaft assembly (1), the roller shaft assembly (1) comprises a roller shaft assembly one (1-1), a roller shaft assembly two (1-2) and a roller shaft assembly three (1-3), the roller shaft assembly three (1-3) is a connecting shaft, the roller shaft assembly one (1-1) and the roller shaft assembly two (1-2) are symmetrically arranged at two ends of the connecting shaft through sealing plug-in connection, and the hollow roller assembly (2) is sealingly arranged outside the connecting shaft. The roller shaft assembly one (1-1) and the roller shaft assembly two (1-2) are hollow shafts, the roller shaft assembly one (1-1) and the roller shaft assembly two (1-2) are in communication with an internal cooling chamber (103) of the hollow roller assembly (2), a water distribution part is arranged in the cooling chamber (103) and divides the cooling chamber (103) into a left chamber and a right chamber, the left chamber and the right chamber are in communication, and the water distribution part is arranged on the connecting shaft.

2. A quench roll structure according to claim 1, wherein The connecting shaft is provided with plug-in holes on left and right sides, the roller shaft assembly one (1-1) and the roller shaft assembly two (1-2) are plugged into the corresponding plug-in holes through interference fit, and the hollow roller assembly (2) is sealingly fixed on the connecting shaft through bolt connection.

3. A quench roll structure according to claim 1 wherein, One end of the roller shaft assembly one (1-1) away from the connecting shaft is a water inlet (101), and a plurality of first water inlets in communication with the cooling chamber (103) are arranged on a circumferential side of one end of the roller shaft assembly one (1-1) close to the connecting shaft.

4. A quench roll structure according to claim 3, wherein One end of the roller shaft assembly two (1-2) away from the connecting shaft is a water outlet (104), and a plurality of second water inlets in communication with the cooling chamber (103) are arranged on a circumferential side of one end of the roller shaft assembly two (1-2) close to the connecting shaft.

5. A quench roll structure according to claim 4, wherein All the first water inlets are circumferentially distributed on a right end of a side wall of the roller shaft assembly one (1-1), and all the second water inlets are circumferentially distributed on a left end of a side wall of the roller shaft assembly two (1-2); the connecting shaft is provided with cooling chamber (103) water inlets in communication with each first water inlet and each second water inlet; The first water inlets and the second water inlets are square water inlets (102), and the first water inlets and the second water inlets are staggered at an angle of 30 degrees.

6. A quench roll structure according to claim 4 wherein, The hollow roller assembly (2) comprises a hollow molybdenum sleeve (5) and two roller baffle plates (4) detachably arranged on left and right sides of the hollow molybdenum sleeve (5), through holes matched with the connecting shaft are arranged in the middle of the two roller baffle plates (4), and the two roller baffle plates (4), the hollow molybdenum sleeve (5) and the connecting shaft surround the cooling chamber (103).

7. A quench roll structure according to claim 6, wherein Sealing rings (6) are arranged at positions where the roller baffle plates (4) contact the hollow molybdenum sleeve (5).

8. A quench roll structure according to claim 6 wherein, The water distribution part comprises a water distribution ring (3), a baffle one (2-1) and a baffle two (2-2) which are detachably arranged on the left and right sides of the water distribution ring (3), and the middle part of the baffle one (2-1) and the baffle two (2-2) is provided with a through hole for mounting the connecting shaft.

9. A quench roll structure according to claim 8, wherein The outer diameter of the water distribution ring (3) is smaller than the inner diameter of the hollow molybdenum sleeve (5), and the water distribution ring (3) and the hollow molybdenum sleeve (5) form an annular flow channel which communicates the left chamber and the right chamber.

10. A quench roll structure according to claim 8 wherein, The first water passing opening and the second water passing opening are both six.

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