Ingot pulling chamber lifting and translation mechanism for electron beam cooling bed vacuum melting furnace

Abstract

According to the ingot pulling chamber lifting and translation mechanism for the electron beam cooling bed vacuum melting furnace, driven wheel sets and driving wheel sets matched with rail assemblies are arranged on the bottom faces of corners at the left end and the right end of an ingot pulling trolley respectively, and the two driving wheel sets at the right end of the ingot pulling trolley are connected into a whole through a translation driving device; a lifting driving device distributed on the periphery of the ingot pulling chamber is arranged on the upper end face of the ingot pulling trolley, the upper ends of a plurality of lifting parts of the lifting driving device are fixedly connected with a platform at the upper end of the ingot pulling chamber, and the ingot pulling chamber penetrating through the ingot pulling trolley is driven by the lifting driving device to ascend and descend. The two ends of one side of the ingot pulling trolley are each provided with a guide device matched with the corresponding side of the rail assembly and used for guiding the ingot pulling trolley. By optimizing the lifting and translation structure, the problem of poor stability and stability caused by unreasonable design of the lifting structure of the ingot pulling chamber is solved, the lifting stability and the stability in the translation process of the ingot pulling chamber are improved, the requirements for stability and reliability of lifting and translation of the ingot pulling chamber are met, and the ingot pulling chamber has high use value.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal smelting equipment, and in particular relates to an ingot pulling chamber lifting and translation mechanism for an electron beam cooling bed vacuum smelting furnace. Background Art

[0002] Electron beam melting belongs to the category of vacuum metallurgy. Vacuum metallurgy requires the addition of some complex, high-tech and expensive vacuum equipment due to the use of vacuum technology. Electron beam furnaces are used to melt refractory metals, alloys, their compounds and composite materials. Due to their unique high melting points and other unique properties, they have always been developed as high-tech materials and occupy an important position in the national economy, especially in the fields of national defense, aerospace, electronic information, energy, chemical defense, metallurgy and nuclear industry. They play an irreplaceable role and are highly valued by countries around the world. It has become one of the most active research fields in the field of materials science.

[0003] In the electron beam cold bed melting furnace, the titanium ingot cooled by the crystallizer is located on the bottom support at the bottom of the crystallizer. The bottom support is connected to the ingot pulling system, and the ingot pulling system drives the bottom support to move downward to pull the titanium ingot out. The ingot pulling chamber is a rotary structure. In the process of lifting it up and down, the jacking connection positions are distributed on the outer periphery of the ingot pulling chamber. Since the ingot pulling chamber is heavy and the structural design is unreasonable, there is a problem of poor lifting stability and stability when driving the ingot pulling chamber to lift. Therefore, it is necessary to make improvements to the above problems. Utility Model Content

[0004] The technical problem solved by the utility model is: to provide a lifting and translation mechanism for an ingot pulling chamber for an electron beam cooling bed vacuum melting furnace. By optimizing the lifting and translation structure, a lifting drive device including multiple lifting parts evenly distributed on the periphery of the ingot pulling chamber is adopted to drive the ingot pulling chamber to lift and lower, so that the ingot pulling chamber is subjected to uniform force during lifting and lowering, and the ingot pulling trolley and the ingot pulling chamber are driven by the translation drive device to translate synchronously under the guidance of the guide devices at both ends of the ingot pulling trolley, so as to solve the problem of poor stability and smoothness caused by unreasonable design of the lifting structure of the ingot pulling chamber, improve the lifting stability of the ingot pulling chamber and the smoothness of the translation process, have a simple structure, a reasonable design, meet the requirements of stability and reliability of the lifting and translation of the ingot pulling chamber, and have a high use value.

[0005] The technical solution adopted by the utility model: a lifting and translation mechanism for an ingot pulling chamber for an electron beam cooling bed vacuum melting furnace, comprising a track assembly and an ingot pulling trolley, wherein the bottom surfaces of the left and right corners of the ingot pulling trolley are respectively provided with a driven wheel group and a driving wheel group adapted to the track assembly, and the two sets of driving wheel groups at the right end of the ingot pulling trolley are connected as a whole through a translation driving device; a lifting driving device distributed on the periphery of the ingot pulling chamber is provided on the upper end surface of the ingot pulling trolley, and the upper ends of multiple lifting parts of the lifting driving device are fixedly connected to the upper platform of the ingot pulling chamber, and the lifting driving device drives the lifting of the ingot pulling chamber arranged through the ingot pulling trolley, and both ends of one side of the ingot pulling trolley are provided with guide devices adapted to the corresponding sides of the track assembly and used to guide the ingot pulling trolley.

[0006] Among them, the lifting drive device includes a lifting motor, a commutator and a screw lifter. The upper end of the lifting part is fixedly connected to the upper platform of the ingot pulling chamber at the four corners of the upper end surface of the ingot pulling trolley. The two screw lifts on the front side of the upper end surface of the ingot pulling trolley and the two screw lifts on the rear side are respectively fixedly connected as a whole through the long axis and the coupling at the end of the long axis. The lifting motor is installed and fixed on the left side of the upper end surface of the ingot pulling trolley. One output shaft of the lifting motor is connected to the upper end surface of the ingot pulling trolley through the coupling. One end of the commutator on the left rear side is fixedly connected, and the other end of the commutator is fixedly connected to one end of the screw elevator at the corresponding position on the rear side through a coupling. The other output end of the lifting motor is fixedly connected to one end of the short shaft through a coupling. The other end of the short shaft is fixedly connected to one end of the commutator fixed on the left front side of the upper end surface of the ingot pulling trolley through a coupling, and the other end of the commutator is fixedly connected to one end of the screw elevator on the left front side through a coupling, and the synchronous lifting of the lifting parts of the four screw elevators is realized under the drive of the lifting motor.

[0007] Furthermore, the ingot pulling chamber is arranged through a square hole in the middle of the ingot pulling trolley, triangular mounting plates are fixed at the corner positions of the square hole in the middle of the ingot pulling trolley, and the screw lifter is fixed on the triangular mounting plate.

[0008] Furthermore, the translation drive device includes a reduction motor and a translation shaft, the reduction motor is installed on the right side wall of the ingot pulling trolley, and one output end of the reduction motor is fixedly connected to the shaft of a driving wheel group on the same side through a coupling, and the two ends of the translation shaft are respectively fixedly connected to the shaft of another driving wheel group and the other output end of the reduction motor through a coupling.

[0009] Furthermore, the guide device includes a guide wheel and a mounting plate fixed to the end of the front side beam plate of the ingot pulling trolley, a fixing block is symmetrically fixed on the outer side wall of the mounting plate, and the eccentric shaft that contacts the fixing block with the positioning platform on the outer circumferential wall penetrates the fixing block, a locking wheel circumferentially positioned on the upper end face of the fixing block, and an adjusting wheel at the upper end of the locking wheel, the adjusting wheel and the eccentric shaft are connected by a key, the upper end of the eccentric shaft is provided with a gasket and a locking nut threadedly connected to the eccentric shaft, and the lower end of the eccentric shaft is rotatably mounted with a guide wheel adapted to the outer side of the track assembly, the upper end face of the locking wheel and the lower end face of the adjusting wheel are both provided with mutually adapted positioning teeth, and the distance between the guide wheel and the outer side wall of the track assembly is adjusted by rotating the adjusting wheel when the locking nut is loosened, and the positioning teeth on the upper end face of the locking wheel and the lower end face of the adjusting wheel are meshed and fixed with each other when the locking nut is locked.

[0010] Furthermore, mutually parallel positioning grooves are formed on both sides of the lower end surface of the locking wheel, and the lower end of the locking wheel is adapted to the groove formed on the upper end surface of the fixing block, and the locking wheel is positioned by the adaptation of the positioning groove and the groove.

[0011] Furthermore, both ends of the other side of the ingot pulling trolley are symmetrically provided with hook plates which are hook-shaped structures and are adapted to the corresponding sides of the track assembly for guiding and limiting.

[0012] The advantages of this utility model compared with the prior art:

[0013] 1. This technical solution optimizes the lifting and translation structure and adopts a lifting drive device including multiple lifting parts evenly distributed on the periphery of the ingot pulling chamber to drive the ingot pulling chamber to lift, so that the ingot pulling chamber is subjected to uniform force during lifting and lowering, providing conditions for the smooth lifting and lowering of the ingot pulling chamber;

[0014] 2. This technical solution uses a translation drive device to drive the ingot pulling trolley and the ingot pulling chamber to translate synchronously under the guidance of the guide devices at both ends of the ingot pulling trolley, which solves the problem of poor translation stability and smoothness of the ingot pulling chamber caused by the unreasonable original structural design, and improves the stability and reliability of the ingot pulling chamber during translation;

[0015] 3. This technical solution has a simple structure and reasonable design, meets the requirements of stability and reliability of the lifting and translation of the ingot pulling chamber, and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a front view of the structure of the mobile trolley equipped with a translation drive device and a lifting drive device of the utility model;

[0018] Figure 3 This is a bottom view of the structure of the mobile trolley equipped with a translation drive device and a lifting drive device in the utility model;

[0019] Figure 4 This is a left view of the structure of the mobile trolley equipped with a translation drive device and a lifting drive device of the utility model;

[0020] Figure 5 for Figure 2 Middle AA section view;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the guide device of the utility model;

[0022] Figure 7 It is a cross-sectional view of the eccentric shaft position of the guide device of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiment of the present utility model Figure 1-7 , 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 them. Based on the embodiments of 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] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0026] The lifting and translation mechanism of the ingot pulling chamber for the electron beam cooling bed vacuum melting furnace, such as Figure 1-7As shown, it includes a track assembly 1 and an ingot pulling trolley 2, wherein the track assembly 1 includes a base and two tracks arranged on the base arranged in parallel, and limit seats for limiting are provided at both ends of the base, and limit switches can be installed on the limit seats to achieve reliable limiting of the extreme positions at both ends of the ingot pulling trolley 2; the bottom surfaces of the left and right corners of the ingot pulling trolley 2 are respectively provided with a driven wheel group 3 and a driving wheel group 4 adapted to the track assembly 1, and the two sets of driving wheel groups 4 at the right end of the ingot pulling trolley 2 are connected as a whole through a translation drive device; the upper end surface of the ingot pulling trolley 2 is provided with a lifting drive device distributed on the periphery of the ingot pulling room, and the upper ends of multiple lifting parts of the lifting drive device are fixedly connected to the upper end platform of the ingot pulling room, and the ingot pulling room set through the ingot pulling trolley 2 is driven and lifted by the lifting drive device, and both ends of one side of the ingot pulling trolley 2 are provided with guide devices adapted to the corresponding side of the track assembly 1 and used to guide the ingot pulling trolley 2.

[0027] like Figure 1-5 As shown, the specific structure of the lifting drive device is as follows: the lifting drive device includes a lifting motor 8, a commutator 9 and a screw lift 10. The upper end of the lifting part is fixedly connected to the upper platform of the ingot pulling chamber at the four corners of the upper end surface of the ingot pulling trolley 2. The two screw lifts 10 on the front side of the upper end of the ingot pulling trolley 2 and the two screw lifts 10 on the rear side are respectively fixedly connected as a whole through the long shaft 11 and the coupling 7 at the end of the long shaft 11. The lifting motor 8 is fixedly installed. On the left side of the upper end surface of the ingot pulling trolley 2, one output shaft of the lifting motor 8 is fixedly connected to one end of the commutator 9 fixed to the left rear side of the upper end surface of the ingot pulling trolley 2 through a coupling 7, and the other end of the commutator 9 is fixedly connected to one end of the screw lift 10 at the corresponding position on the rear side through the coupling 7, and the other output end of the lifting motor 8 is fixedly connected to one end of the short shaft 12 through the coupling 7, and the other end of the short shaft 12 is fixedly connected to one end of the commutator 9 fixed to the left front side of the upper end surface of the ingot pulling trolley 2 through the coupling 7. The commutator 9 is fixedly connected, and the other end of the commutator 9 is fixedly connected to one end of the lead screw elevator 10 on the left front side through a coupling 7, and the synchronous lifting of the lifting parts of the four lead screw elevators 10 is realized under the drive of the lifting motor 8; specifically, the ingot pulling chamber passes through the square hole in the middle of the ingot pulling trolley 2, and the corners of the square hole in the middle of the ingot pulling trolley 2 are fixed with triangular mounting plates 21, and the lead screw elevator 10 is fixed on the triangular mounting plate 21; in the above structure, by optimizing the lifting and translation structure, a lifting drive device including multiple lifting parts and evenly distributed on the periphery of the ingot pulling chamber is adopted to drive the ingot pulling chamber to lift and lower, so that the ingot pulling chamber is subjected to uniform force during lifting and lowering, providing conditions for the smooth lifting and lowering of the ingot pulling chamber; that is, multiple lead screw elevators 10 are evenly distributed on the periphery of the ingot pulling chamber, and the upper ends of the lifting parts of the lead screw elevators 10 are fixedly connected to the bottom of the platform fixed to the upper end of the ingot pulling chamber, and a lifting motor 8 drives the four lead screw elevators 10 to move simultaneously, ensuring that the platform is subjected to balanced force during the lifting process, thereby improving the stability and reliability of the lifting process of the ingot pulling chamber.

[0028] like Figure 2 , 3 As shown in Figures 4 and 5, the specific structure of the translation drive device is as follows: the translation drive device includes a reduction motor 5 and a translation shaft 6, the reduction motor 5 is installed on the right side wall of the ingot pulling trolley 2, and one output end of the reduction motor 5 is fixedly connected to the shaft of a driving wheel group 4 on the same side through a coupling 7, and the two ends of the translation shaft 6 are respectively fixedly connected to the shaft of another driving wheel group 4 and the other output end of the reduction motor 5 through the coupling 7; under the control of the reduction motor 5 to rotate the driving wheel group 4, the ingot pulling trolley 2 is moved along the length direction of the guide rail assembly 1;

[0029] like Figure 6-7 As shown, the specific structure of the guide device is as follows: the guide device includes a guide wheel 14 and a mounting plate 13 fixed to the end of the front side beam plate of the ingot pulling trolley 2, a fixing block 15 is symmetrically fixed on the outer wall of the mounting plate 13, and an eccentric shaft 16 that contacts the fixing block 15 with the positioning platform on the outer circumferential wall penetrates the fixing block 15, a locking wheel 17 circumferentially positioned on the upper end surface of the fixing block 15, and an adjusting wheel 18 at the upper end of the locking wheel 17, the adjusting wheel 18 is connected to the eccentric shaft 16 by a key, a gasket and a locking nut 19 threadedly connected to the eccentric shaft 16 are mounted on the upper end of the eccentric shaft 16, and a guide wheel 14 adapted to the outer side of the track assembly 1 is rotatably mounted on the lower end of the eccentric shaft 16, the upper end surface of the locking wheel 17 and the lower end surface of the adjusting wheel 18 are both provided with positioning teeth adapted to each other, and the locking nut 19 is threadedly connected to the eccentric shaft 16. In the loosened state, the distance between the guide wheel 14 and the outer side wall of the track assembly 1 is adjusted by rotating the adjusting wheel 18, and when the locking nut 19 is locked, the positioning teeth on the upper end surface of the locking wheel 17 and the lower end surface of the adjusting wheel 18 are meshed and fixed with each other; specifically, the lower end surface of the locking wheel 17 is provided with positioning grooves parallel to each other on both sides, and the lower end of the locking wheel 17 is adapted to the groove formed on the upper end surface of the fixing block 15, and the positioning of the locking wheel 17 is achieved under the adaptation of the positioning groove and the groove; in the above structure, when the two locking nuts 19 are loosened, since the adjusting wheel 18 is connected to the eccentric shaft 16 by a key, the distance between the guide wheel 14 on the eccentric shaft 16 and the outer side wall of the track assembly 1 is adjusted by rotating the adjusting wheel 18, so as to ensure that the guide wheel 14 is in contact with the outer side wall of the track assembly 1, thereby improving the stability of the Latin trolley 2 during translation;

[0030] In order to ensure the stability of the ingot pulling trolley 2 during horizontal movement, hook plates 20 with hook-shaped structures and adapted to the corresponding sides of the track assembly 1 for guiding and limiting are symmetrically provided at both ends of the other side of the ingot pulling trolley 2; the above structure is combined with the guide device, and the ingot pulling trolley and the ingot pulling chamber are driven to translate synchronously by the translation drive device, which solves the problem of poor translation stability and stability of the ingot pulling chamber caused by the unreasonable original structural design, and improves the stability and reliability of the ingot pulling chamber during translation;

[0031] The technical solution has a simple structure and a reasonable design, meets the requirements for the stability and reliability of the lifting and translation of the ingot pulling chamber, and has a high use value.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] 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. An ingot pulling chamber lifting and translation mechanism for an electron beam cooling bed vacuum melting furnace, characterized in that: It comprises a track assembly (1) and an ingot pulling trolley (2), wherein the bottom surfaces of the left and right corners of the ingot pulling trolley (2) are respectively provided with a driven wheel assembly (3) and a driving wheel assembly (4) adapted to the track assembly (1), and the two driving wheel assemblies (4) at the right end of the ingot pulling trolley (2) are connected as a whole through a translation drive device; the upper end surface of the ingot pulling trolley (2) is provided with a lifting drive device distributed on the periphery of the ingot pulling room, and the upper ends of the multiple lifting parts of the lifting drive device are fixedly connected to the upper end platform of the ingot pulling room, and the lifting drive device drives the lifting of the ingot pulling room set through the ingot pulling trolley (2), and both ends of one side of the ingot pulling trolley (2) are provided with a guide device adapted to the corresponding side of the track assembly (1) and used to guide the ingot pulling trolley (2).

2. The lifting and translation mechanism for the ingot pulling chamber of the electron beam cooling bed vacuum melting furnace according to claim 1 is characterized in that: The lifting drive device comprises a lifting motor (8), a commutator (9) and a screw lift (10); the upper end of the lifting part of the screw lift (10) is fixedly connected to the upper end platform of the ingot pulling chamber at the four corners of the upper end surface of the ingot pulling trolley (2); the two screw lifts (10) on the front side of the upper end surface of the ingot pulling trolley (2) and the two screw lifts (10) on the rear side are respectively fixedly connected to form a whole through a long shaft (11) and a coupling (7) at the end of the long shaft (11); the lifting motor (8) is fixedly mounted on the left side of the upper end surface of the ingot pulling trolley (2); an output shaft of the lifting motor (8) is connected to the left side of the upper end surface of the ingot pulling trolley (2) through the coupling (7). One end of the commutator (9) on the rear side is fixedly connected, and the other end of the commutator (9) is fixedly connected to one end of a screw lift (10) at a corresponding position on the rear side through a coupling (7); the other output end of the lifting motor (8) is fixedly connected to one end of a short shaft (12) through a coupling (7); the other end of the short shaft (12) is fixedly connected to one end of the commutator (9) fixed to the left front side of the upper end surface of the ingot pulling trolley (2) through a coupling (7); and the other end of the commutator (9) is fixedly connected to one end of the screw lift (10) on the left front side through a coupling (7); and the synchronous lifting of the lifting parts of the four screw lifts (10) is achieved under the drive of the lifting motor (8).

3. The lifting and translation mechanism of the ingot pulling chamber for the electron beam cooling bed vacuum melting furnace according to claim 2 is characterized in that: The ingot pulling chamber is arranged through a square hole in the middle of the ingot pulling trolley (2), triangular mounting plates (21) are fixed at the corners of the square hole in the middle of the ingot pulling trolley (2), and the screw lifter (10) is fixed on the triangular mounting plate (21).

4. The lifting and translation mechanism for the ingot pulling chamber of the electron beam cooling bed vacuum melting furnace according to claim 1 is characterized in that: The translation drive device comprises a reduction motor (5) and a translation shaft (6); the reduction motor (5) is mounted on the right side wall of the ingot pulling trolley (2); and one output end of the reduction motor (5) is fixedly connected to the rotation shaft of a driving wheel group (4) on the same side via a coupling (7); and two ends of the translation shaft (6) are respectively fixedly connected to the rotation shaft of another driving wheel group (4) and the other output end of the reduction motor (5) via the coupling (7).

5. The lifting and translating mechanism for the ingot pulling chamber of the electron beam cooling hearth vacuum melting furnace according to claim 1, 2, 3 or 4, characterized in that: The guide device comprises a guide wheel (14) and a mounting plate (13) fixed to the end of the front side beam plate of the ingot pulling trolley (2); a fixing block (15) is symmetrically fixed on the outer side wall of the mounting plate (13); an eccentric shaft (16) which contacts the fixing block (15) and passes through the fixing block (15); a locking wheel (17) circumferentially positioned on the upper end surface of the fixing block (15); and an adjusting wheel (18) at the upper end of the locking wheel (17); the adjusting wheel (18) is connected to the eccentric shaft (16) by a key; and a gasket and a A locking nut (19) is threadedly connected to the eccentric shaft (16), and a guide wheel (14) adapted to the outer side of the track assembly (1) is rotatably mounted on the lower end of the eccentric shaft (16). The upper end surface of the locking wheel (17) and the lower end surface of the adjusting wheel (18) are both provided with mutually adapted positioning teeth. When the locking nut (19) is loosened, the distance between the guide wheel (14) and the outer side wall of the track assembly (1) can be adjusted by rotating the adjusting wheel (18). When the locking nut (19) is locked, the positioning teeth on the upper end surface of the locking wheel (17) and the lower end surface of the adjusting wheel (18) are meshed and fixed with each other.

6. The lifting and translation mechanism of the ingot pulling chamber for the electron beam cooling bed vacuum melting furnace according to claim 5 is characterized in that: The lower end surface of the locking wheel (17) is provided with mutually parallel positioning grooves on both sides, and the lower end of the locking wheel (17) is adapted to the groove formed on the upper end surface of the fixing block (15), and the locking wheel (17) is positioned by the adaptation of the positioning groove and the groove.

7. The lifting and translation mechanism for the ingot pulling chamber of the electron beam cooling bed vacuum melting furnace according to claim 6 is characterized in that: Both ends of the other side of the ingot pulling trolley (2) are symmetrically provided with hook plates (20) in a hook-shaped structure and adapted to be guided and limited with the corresponding side of the track assembly (1).

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