CN220062539U

CN220062539U - Furnace shell quick-assembly and quick-disassembly connecting device for electron beam cooling bed furnace

Info

Publication number: CN220062539U
Application number: CN202321526982.9U
Authority: CN
Inventors: 杨浩; 雷东; 张恒
Original assignee: Baoji Juhexin Equipment Technology Co ltd
Current assignee: Baoji Juhexin Equipment Technology Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-11-21
Anticipated expiration: 2033-06-15

Abstract

The utility model provides a stove outer covering quick detach formula connecting device for electron beam cold bed stove, axial positioning has the rotating sleeve subassembly on last supporting seat, the adjustable movable section of adjusting the lower half of length is connected with rotating sleeve subassembly lower extreme, the waist shape piece of adjustable movable section tip of adjusting the lower half of length passes waist shape slot hole and is located lower supporting seat bottom, be in vertical locking state or parallel unblock state through rotatory regulation and control locking device control waist shape piece and waist shape hole, waist shape piece and the contact of lower supporting seat bottom surface when the regulation of length adjustable regulation pole integral length realizes vertical locking state, or separation of waist shape piece and lower supporting seat when parallel unblock state. The utility model solves the problems of low installation efficiency and inconvenient maintenance and disassembly of the traditional bolt connection structure, eliminates the defect of difficult disassembly after the bolt connection structure is rusted, has high installation efficiency, convenient and quick disassembly, has high safety and reliability of the connection structure with a locking function, and improves the disassembly and maintenance efficiency of the furnace body and the stability of production operation.

Description

Furnace shell quick-assembly and quick-disassembly connecting device for electron beam cooling bed furnace

Technical Field

The utility model belongs to the technical field of connecting structures, and particularly relates to a furnace shell quick-assembly and quick-disassembly connecting device for an electron beam cooling bed furnace.

Background

The electron beam cold bed smelting furnace is special equipment for smelting and purifying high temperature refractory metals. Electron beam melting is performed under high vacuum, the overheating temperature during melting is high, and the time for maintaining the liquid state is long, so that the refining and purifying effects of materials can be fully and effectively performed. The electron beam cold bed smelting furnace comprises a plurality of modules, the fixed connection structure between each module adopts the connection structure of bolt and nut adaptation, and the connection structure can lead to insufficient pretightening force due to vibration in the running process of equipment, the compression amount of a sealing ring is insufficient, the vacuum in the furnace is reduced, the temperature near the furnace shell is highest, the bolt connection is extremely easy to rust, the sealing ring at the position also needs to be replaced regularly, the disassembly in the later maintenance and repair is unchanged, and the disassembly and the assembly of the connection structure are time-consuming and labor-consuming, so that the improvement is necessary for the problems.

Disclosure of Invention

The utility model solves the technical problems that: the utility model provides a furnace shell quick detach formula connecting device for electron beam cold hearth furnace, through the fixed connection structure of optimizing each module furnace body, solved traditional bolted connection structure installation effectiveness and maintenance and dismantled inconvenient problem, eliminate the defect of dismantling the difficulty after bolted connection structure rust, installation effectiveness is high, dismantles convenient and fast, and connection structure fail safe nature that has the locking function is high, very big improvement furnace body dismouting maintenance efficiency and production operation's stability.

The utility model adopts the technical scheme that: the quick-assembly and quick-disassembly type connecting device for the furnace shell of the electron beam cooling bed furnace comprises an upper supporting seat fixed on the outer wall of the upper furnace shell and a lower supporting seat fixed on the outer wall of the lower furnace shell and corresponding to the upper supporting seat in the upper-lower position, wherein a rotary sleeve component is axially positioned on the upper supporting seat, the upper half part of a length-adjustable adjusting rod, which is arranged at the upper end and the lower end of the rotary sleeve component in a penetrating way, is in rotary sealing connection with the rotary sleeve component, the movable section of the lower half part of the length-adjustable adjusting rod is connected with the lower end of the rotary sleeve component, the movable end of the lower half part of the length-adjustable adjusting rod can synchronously rotate along with the rotary sleeve component, a waist-shaped block is arranged at the end of the movable section of the lower half part of the length-adjustable adjusting rod, a waist-shaped hole is formed in the bottom surface of the lower supporting seat, the waist-shaped block penetrates through the waist-shaped long hole and is positioned at the bottom of the lower supporting seat, the rotary adjusting locking device which is connected with the upper supporting seat and is used for driving the movable section of the lower half part of the length-adjustable rod through the rotary sleeve component is in a rotary sealing connection mode, the waist-shaped block is controlled by the rotary adjusting locking device to be in a vertical locking state or a parallel state, and the waist-shaped block is in a vertical locking state or a parallel state with the waist-shaped block is in the bottom surface of the lower supporting seat is in a state when the length-adjustable adjusting state is in which is in parallel with the state.

The upper supporting seat is provided with a state detection device for detecting whether the waist-shaped block and the waist-shaped hole are in a vertical locking state or a parallel unlocking state.

Further, the state detection device comprises a locking position limit switch and an unlocking position limit switch, the mounting seats are symmetrically fixed on the left side and the right side of the upper end face of the upper supporting seat, the locking position limit switch and the unlocking position limit switch which are positioned on the left side and the right side of the upper end of the rotating sleeve assembly are respectively mounted on the mounting seats on the corresponding sides, two stop pin shafts which are distributed at 90 degrees are fixed on the middle part of the front wall of the upper end of the rotating sleeve assembly and one side wall of the rotating sleeve assembly, and the two stop pin shafts respectively trigger the locking position limit switch or the unlocking position limit switch along with clockwise or anticlockwise rotation of the rotating sleeve assembly, so that detection of a locking state or an unlocking state is completed.

Further, the rotating sleeve assembly comprises an inner sleeve and an outer sleeve, the inner sleeve is of a stepped cylinder structure formed by a large-diameter section at the upper end and a small-diameter section at the lower end, the outer sleeve is sleeved on the inner sleeve, a thrust ball bearing I is arranged between the annular inner bottom surface of the outer sleeve and the step surface of the transition connection position between the large-diameter section and the small-diameter section of the outer sleeve, a positioning convex ring at the outer edge of the upper end of the outer sleeve is matched with a ring groove at the upper edge of an inner hole of the flange plate, a positioning plate which is positioned above the flange plate and used for axially positioning the outer sleeve is sleeved on the large-diameter section of the outer sleeve, the positioning plate and the flange plate are detachably fixed on an upper supporting seat through a plurality of screws, and the lower end of the adjustable inner sleeve is rotatably positioned and connected with a movable section of the lower half part of the adjustable length adjusting rod.

Further, the length-adjustable adjusting rod comprises an adjusting shaft and a threaded sleeve, the kidney-shaped block is arranged at the lower end part of the threaded sleeve, the upper end and the lower end of the adjusting shaft penetrate through the inner sleeve, the kidney-shaped block is connected with the adjusting shaft in an adaptive manner and respectively abuts against a deep groove ball bearing I of an upper table surface and a deep groove ball bearing II of a lower table surface of an annular boss in the middle of the adjusting shaft, the two bottoms of the thrust ball bearings are positioned on a step surface of an inner hole of the inner sleeve, a deep groove ball bearing II connected with the adjusting shaft in an adaptive manner is arranged in an inner hole at the upper end of the inner sleeve, a positioning sleeve for positioning the deep groove ball bearing II and an inner ring of the deep groove ball bearing I is sleeved on the adjusting shaft, and an end cover in clearance fit with the adjusting shaft is fixed at the upper end of the inner sleeve; the lower end of the inner sleeve is rotationally positioned and connected with the upper end of the threaded sleeve, the upper end of the threaded sleeve is in threaded connection with the lower end of the adjusting shaft, a sealing asphalt felt which is positioned above the threaded sleeve and used for being in contact with and sealing with the inner wall of the inner sleeve is arranged on the outer wall of the adjusting shaft, a hand wheel which is convenient for rotating the adjusting shaft is fixed at the upper end of the adjusting shaft, the threaded sleeve is controlled to lift through the rotation of the adjusting shaft, and the adjustment of the whole length of the length-adjustable adjusting rod is realized.

Further, a positioning groove is formed in the inner wall of one side of the lower end of the inner sleeve, a key with the outer end face higher than the outer wall of the screw sleeve is adapted in a key groove formed in the outer wall of the upper end of the screw sleeve, the key is fixed on the screw sleeve through a countersunk screw, the upper end of the screw sleeve is adapted in an inner hole of the lower end of the inner sleeve, the key is located in the positioning groove, and the screw sleeve moves up and down under the cooperation of the key and the positioning groove when the adjusting shaft rotates.

Further, the threaded sleeve is sleeved with an end nut which is in a T-shaped structure in cross section and is in threaded connection with the lower end part of the inner sleeve.

Further, the rotary regulation and control locking device comprises a locking position support, an unlocking position support and a handle rod, wherein the locking position support and the unlocking position support are symmetrically fixed on two side walls of an upper supporting seat by 90 degrees, positioning hooks with downward hook openings are hinged to the locking position support and the unlocking position support, the handle rod is perpendicular to an outer sleeve, the inner end of the handle rod penetrates through a through hole in the outer wall of the outer sleeve to be fixedly connected with threads of the inner sleeve, the outer sleeve and the inner sleeve are rotated clockwise or anticlockwise through the handle rod, the adjustment of the azimuth of a waist-shaped block at the lower end of the screw sleeve is realized, the positioning hooks on the locking position support are hung with the handle rod when the waist-shaped block is rotated to be locked, and the positioning hooks on the unlocking position support are hung with the handle rod when the waist-shaped block is rotated to be unlocked.

Further, an upper positioning screw and a lower positioning screw which are respectively positioned above and below the positioning hooks are arranged on the locking position support and the unlocking position support, the positioning hooks rotate to be connected with the handle rod in a hanging mode, and the positioning hooks rotate to be in contact with the upper positioning screw when being unlocked from the handle rod.

Compared with the prior art, the utility model has the advantages that:

1. according to the technical scheme, through optimizing the fixed connection structure of each module furnace body, the problems that a traditional bolt connection structure is low in installation efficiency and inconvenient to repair and disassemble are solved, the defect that the bolt connection structure is difficult to disassemble after rusting is overcome, the installation efficiency is high, the disassembly is convenient and quick, the connection structure with a locking function is high in safety and reliability, the connection state can be accurately fed back to a central control system through a limit switch, and the disassembly and maintenance efficiency of the furnace body and the stability of production operation are greatly improved;

2. according to the technical scheme, a waist-shaped block at the lower end part of the screw sleeve is matched with a waist-shaped hole at the bottom surface of the lower supporting seat, the waist-shaped block and the waist-shaped hole are controlled to be in a vertical locking state or a parallel unlocking state by rotating the screw sleeve through the handle rod, the locking state of the upper furnace shell and the lower furnace shell is adjusted, and the adjusting structure is convenient and quick;

3. according to the technical scheme, a length-adjustable adjusting rod consisting of an adjusting shaft and a threaded sleeve is adopted to provide a height adjusting structure for the waist-shaped block, so that the waist-shaped block is tensioned and fixed with the bottom surface of the lower supporting seat when the waist-shaped block and the waist-shaped hole are in a locking state, and the waist-shaped block rises and is separated from the lower supporting seat when the waist-shaped block and the waist-shaped hole are in an unlocking state; the adjusting structure is novel in design, and the adjustment is convenient and reliable;

4. according to the technical scheme, the locking position brackets and the unlocking position brackets which are hinged with the positioning hooks are arranged on the two side walls of the upper supporting seat, so that a reliable mechanical positioning structure is provided for the handle in the locking position or unlocking position, the reliability of the position of the handle is ensured, and the stability and the reliability of the connecting structure are improved;

5. the technical scheme has the advantages of simple structure, novel design, convenient regulation and control, reliable quick-assembly connection structure for the furnace shell of the electron beam cooling bed furnace, improvement of the furnace shell disassembly and assembly efficiency, convenience in shell disassembly and maintenance in the later stage and higher use value.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the present utility model;

FIG. 4 is a schematic view of a part of the structure of the B-direction rotation regulating and controlling locking device in FIG. 2;

fig. 5 is a schematic perspective view of the present utility model with the upper and lower support bases removed.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described in the following with reference to fig. 1 to 5 in the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The inclusion of an element as defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cooling bed furnace, as shown in figures 1-5, comprises an upper supporting seat 1 fixed on the outer wall of an upper furnace shell and a lower supporting seat 2 fixed on the outer wall of a lower furnace shell and corresponding to the upper supporting seat 1 in the upper and lower positions, wherein a rotating sleeve component is axially positioned on the upper supporting seat 1, namely the rotating sleeve component freely rotates in the upper supporting seat 1, but can not move up and down, the upper half part of a length-adjustable adjusting rod 4 arranged at the upper and lower ends penetrating through the rotating sleeve component is in rotary sealing connection with the rotating sleeve component, the movable section of the lower half part of the length-adjustable adjusting rod 4 is connected with the lower end of the rotating sleeve component, the movable end of the lower half part of the length-adjustable adjusting rod 4 can synchronously rotate along with the rotating sleeve component, the end part of the movable section of the lower half part of the length-adjustable adjusting rod 4 is provided with a waist-shaped block 5, the bottom surface of the lower supporting seat 2 is provided with a waist-shaped hole 6, the waist-shaped block 5 passes through the waist-shaped long hole 6 and is positioned at the bottom of the lower supporting seat 2, the rotating sleeve component is provided with a rotating regulation locking device which is connected with the upper supporting seat 1 and is used for driving the movable section of the lower half part of the length-adjustable adjusting rod 4 to rotate through the rotating sleeve component, the waist-shaped block 5 and the waist-shaped hole 6 are controlled to be in a vertical locking state or a parallel unlocking state through the rotating regulation locking device, and the waist-shaped block 5 is contacted with the bottom surface of the lower supporting seat 2 when the whole length of the length-adjustable adjusting rod 4 is adjusted to realize the contact between the waist-shaped block 5 and the bottom surface of the lower supporting seat 2 in the vertical locking state or the waist-shaped block 5 is separated from the lower supporting seat 2 when the waist-adjustable locking state is achieved; in the structure, through optimizing the fixed connection structure of each module furnace body, the problems of low installation efficiency and inconvenient maintenance and disassembly of the traditional bolt connection structure are solved, the defect of difficult disassembly after the bolt connection structure is rusted is overcome, the installation efficiency is high, the disassembly is convenient and quick, the safety and the reliability of the connection structure with the locking function are high, and the disassembly and maintenance efficiency of the furnace body and the stability of production operation are greatly improved; the waist-shaped block 5 at the lower end part of the screw sleeve is matched with the waist-shaped hole 6 at the bottom surface of the lower supporting seat, the waist-shaped block and the waist-shaped hole are controlled to be in a vertical locking state or a parallel unlocking state by rotating the screw sleeve through the handle rod 19, the locking state of the upper furnace shell and the lower furnace shell is adjusted, and the adjusting structure is convenient and quick;

the upper supporting seat 1 is provided with a state detection device for detecting whether the waist-shaped block 5 and the waist-shaped hole 6 are in a vertical locking state or a parallel unlocking state; specifically, as shown in fig. 1 and 3, the specific structure of the state detection device is as follows: the state detection device comprises a locking position limit switch 7 and an unlocking position limit switch 8, mounting seats 9 are symmetrically fixed on the left side and the right side of the upper end face of the upper supporting seat 1, the locking position limit switch 7 and the unlocking position limit switch 8 which are positioned on the left side and the right side of the upper end of the rotating sleeve assembly are respectively mounted on the mounting seats 9 on the corresponding sides, two retaining pin shafts 10 which are distributed at 90 degrees are fixed on the middle part of the front wall of the upper end of the rotating sleeve assembly and one side wall of the rotating sleeve assembly, and the two retaining pin shafts 10 respectively trigger the locking position limit switch 7 or the unlocking position limit switch 8 along with clockwise or anticlockwise rotation of the rotating sleeve assembly, so that detection of a locking state or an unlocking state is completed.

As shown in fig. 1 and 3, the specific structure of the rotating sleeve assembly is as follows: the rotary sleeve assembly comprises an inner sleeve 11 and an outer sleeve 12, wherein the inner sleeve 11 is of a stepped cylinder structure formed by a large-diameter section at the upper end and a small-diameter section at the lower end, the outer sleeve 12 is sleeved on the inner sleeve 11, and a thrust ball bearing I24 is arranged between the annular inner bottom surface of the outer sleeve 12 and the stepped surface of the transition connection position between the large-diameter section and the small-diameter section of the outer sleeve 12, so that the inner sleeve 11 can freely rotate in the inner sleeve 12 but cannot move downwards; the positioning convex ring at the outer edge of the upper end of the outer sleeve 12 is matched with the annular groove at the upper edge of the inner hole of the flange plate 13, the large-diameter section of the outer sleeve 12 is sleeved with a positioning plate 14 which is positioned above the flange plate 13 and used for axially positioning the outer sleeve 12, as shown in fig. 4, a positioning table is manufactured on the outer circumferential wall of the upper end of the inner sleeve 11, the lower end of the positioning plate 14 sleeved on the inner sleeve 11 is propped against the positioning table, thus the positioning plate 14 is used for positioning the inner sleeve 11, namely the inner sleeve 11 can freely rotate but cannot move upwards, the positioning plate 14 and the flange plate 13 are detachably fixed on the upper supporting seat 1 through a plurality of screws 15, and the lower end of the inner sleeve 11 is rotatably positioned and connected with the movable section of the lower half part of the length-adjustable adjusting rod 4.

As shown in fig. 3, the specific structure of the length-adjustable adjusting rod 4 is as follows: the length-adjustable adjusting rod 4 comprises an adjusting shaft 4-1 and a threaded sleeve 4-2, the kidney-shaped block 5 is arranged at the lower end part of the threaded sleeve 4-2, the upper end and the lower end of the adjusting shaft 4-1 penetrate through an inner sleeve 11 and are connected with the adjusting shaft 4-1 in an adaptive manner and respectively abutted against a deep groove ball bearing I4-3 of an upper table surface and a lower table surface of an annular boss in the middle of the adjusting shaft 4-1, a thrust ball bearing II 4-4 is matched with the inner sleeve 11, the bottom of the thrust ball bearing II 4-4 is positioned on a step surface of an inner hole of the inner sleeve 11, a deep groove ball bearing II 4-8 which is connected with the adjusting shaft 4-1 in an adaptive manner is arranged in an inner hole at the upper end of the inner sleeve 11, a positioning sleeve 4-9 for positioning the deep groove ball bearing II 4-8 and an inner ring of the deep groove ball bearing I4-3 is sleeved on the adjusting shaft 4-1, and an end cover 4-10 which is in clearance fit with the adjusting shaft 4-1 is fixed at the upper end of the inner sleeve 11; the lower end of the inner sleeve 11 is rotationally positioned and connected with the upper end of the threaded sleeve 4-2, the upper end of the threaded sleeve 4-2 is in threaded connection with the lower end of the adjusting shaft 4-1, a sealing felt 4-5 which is positioned above the threaded sleeve 4-2 and is used for being in contact with and sealing with the inner wall of the inner sleeve 11 is arranged on the outer wall of the adjusting shaft 4-1, a hand wheel 4-6 which is convenient for rotating the adjusting shaft 4-1 is fixed at the upper end of the adjusting shaft 4-1, and the lifting of the threaded sleeve 4-2 is controlled through the rotation of the adjusting shaft 4-1, so that the overall length of the length-adjustable adjusting rod 4 is adjusted; in the structure, the length-adjustable adjusting rod 4 consisting of the adjusting shaft 4-1 and the threaded sleeve 4-2 is adopted to provide a height adjusting structure for the waist-shaped block 5, so that the waist-shaped block 5 and the bottom surface of the lower supporting seat 2 are tightly fixed when the waist-shaped block 5 and the waist-shaped hole 6 are in a locking state, and the waist-shaped block 5 rises to be separated from the lower supporting seat 2 when the waist-shaped block 5 and the waist-shaped hole 6 are in an unlocking state; the adjusting structure is novel in design, and the adjustment is convenient and reliable;

as shown in fig. 3, the structure of the connection between the lower end of the inner sleeve 11 and the upper end of the screw sleeve 4-2 is specifically as follows: a positioning groove 3 is formed in the inner wall of one side of the lower end of the inner sleeve 11, a key 20 with the outer end face higher than the outer wall of the threaded sleeve 4-2 is adapted in a key groove on the outer wall of the upper end of the threaded sleeve 4-2, the key 20 is fixed on the threaded sleeve 4-2 through a countersunk head screw 21, the upper end of the threaded sleeve 4-2 is adapted in an inner hole at the lower end of the inner sleeve 11, the key 20 is positioned in the positioning groove 3, and the threaded sleeve 4-2 moves up and down under the cooperation of the key 20 and the positioning groove 3 when the adjusting shaft 4-1 rotates; specifically, the threaded sleeve 4-2 is sleeved with an end nut 4-7 with a T-shaped cross section in threaded connection with the lower end part of the inner sleeve 11; in the above structure, the key 20 fixed on the screw sleeve 4-2 is matched with the positioning grooves 3 in a plurality of rows on the inner wall of the lower end of the inner sleeve 11, so that a rotation limiting structure is provided for the screw sleeve 4-2, and the screw sleeve 4-2 is limited in rotation by the key 20 when the adjusting shaft 4-1 rotates, so that the adjusting shaft 4-1 is ensured to drive the key 20 to move up and down along the positioning grooves 3 along the screw sleeve 4-2 when rotating, and meanwhile, the screw sleeve 4-2 can be positioned in the circumferential direction.

As shown in fig. 1, 2, 4 and 5, the specific structure of the rotation control locking device is as follows: the rotary regulation and control locking device comprises a locking position support 16, an unlocking position support 17 and a handle rod 19, wherein the locking position support 16 and the unlocking position support 17 are symmetrically fixed on two side walls of the upper supporting seat 1 at an angle of 90 degrees, positioning hooks 18 with downward hook openings are hinged to the locking position support 16 and the unlocking position support 17, the handle rod 19 is perpendicular to the outer sleeve 12, the inner end part of the handle rod 19 penetrates through a through hole in the outer wall of the outer sleeve 12 to be fixedly connected with the inner sleeve 11 through threads, the outer sleeve 12 and the inner sleeve 11 are rotated clockwise or anticlockwise through the handle rod 19, the adjustment of the azimuth of a waist-shaped block 5 at the lower end of the threaded sleeve 4-2 is realized, the positioning hooks 18 on the locking position support 16 are hung with the handle rod 19 when the waist-shaped block 5 is rotated to be locked, and the positioning hooks 18 on the unlocking position support 17 are hung with the handle rod 19 when the waist-shaped block 5 is rotated to be unlocked.

The locking position bracket 16 and the unlocking position bracket 17 are provided with an upper positioning screw 22 and a lower positioning screw 23 which are respectively positioned above and below the positioning hook 18, the positioning hook 18 rotates to be in contact with the upper positioning screw 22 when being hung with the handle rod 19, and the positioning hook 18 rotates to be in contact with the upper positioning screw 22 when being unlocked with the handle rod 19; in the structure, the locking position brackets 16 and the unlocking position brackets 17 which are hinged with the positioning hooks 18 are arranged on the two side walls of the upper supporting seat 1, so that a reliable mechanical positioning structure is provided for the handle 19 in the locking position or the unlocking position, the reliability of the position of the handle 19 is ensured, and the stability and the reliability of the connecting structure are improved;

when the rotary type electric furnace is used, the inner sleeve 11 is rotated through the handle rod 19 to enable the kidney-shaped block 5 to be rotated to an unlocking position in a state of being parallel to the kidney-shaped hole 6, the positioning hook 18 on the unlocking position support 17 is hooked on the handle rod 19, the hand wheel 4-6 is rotated to enable the screw sleeve 4-2 to move downwards until the kidney-shaped block 5 at the lower end of the screw sleeve 4-2 penetrates through the kidney-shaped hole 6 and is positioned below the lower support seat 1, the positioning hook 18 on the unlocking position support 17 is rotated to be far away from the handle rod 19, the inner sleeve 11 is rotated through the handle rod 19 to enable the kidney-shaped block 5 to be rotated to be locked and positioned in a state of being perpendicular to the kidney-shaped hole 6, the positioning hook 18 on the locking position support 16 is hooked on the handle rod 19, the hand wheel 4-6 is rotated to enable the screw sleeve 4-2 to move upwards until the kidney-shaped block 5 at the lower end of the screw sleeve 4-2 is tightly attached to the bottom surface of the lower support seat 1 and is tightly fixed with the lower support seat 1, and at the moment, the upper furnace shell and the lower furnace shell are detachably fixedly connected into a whole.

The technical scheme has the advantages of simple structure, novel design, convenient regulation and control, reliable quick-assembly connection structure for the furnace shell of the electron beam cooling bed furnace, improvement of the furnace shell disassembly and assembly efficiency, convenience in shell disassembly and maintenance in the later stage and higher use value.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. Furnace shell quick-assembly and quick-disassembly connecting device for electron beam cooling bed furnace is characterized in that: comprises an upper supporting seat (1) fixed on the outer wall of an upper furnace shell and a lower supporting seat (2) fixed on the outer wall of a lower furnace shell and corresponding to the upper supporting seat (1) in the upper and lower positions, wherein a rotary sleeve component is axially positioned on the upper supporting seat (1), the upper half part of a length-adjustable adjusting rod (4) arranged at the upper and lower ends penetrating through the rotary sleeve component is in rotary sealing connection with the rotary sleeve component, the movable section of the lower half part of the length-adjustable adjusting rod (4) is connected with the lower end of the rotary sleeve component, the movable end of the lower half part of the length-adjustable adjusting rod (4) can synchronously rotate along with the rotary sleeve component, a waist-shaped block (5) is arranged at the end part of the movable section of the lower half part of the length-adjustable adjusting rod (4), a waist-shaped hole (6) is formed in the bottom surface of the lower supporting seat (2), the waist-shaped block (5) penetrates through the bottom of the waist-shaped hole (6), the rotary sleeve component is provided with a rotary locking device connected with the upper supporting seat (1) and used for driving the movable section of the lower half part of the length-adjustable adjusting rod (4) through the rotary sleeve component, the waist-shaped block is in a vertical locking state with the waist-shaped block (5) when the waist-shaped block is in a vertical state (5) is locked with the bottom surface of the waist-shaped supporting seat (2) or is in a vertical state, or the kidney-shaped block (5) is separated from the lower supporting seat (2) in the parallel unlocking state.

2. The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cooling bed furnace according to claim 1, wherein the device comprises the following components: the upper supporting seat (1) is provided with a state detection device for detecting whether the waist-shaped block (5) and the waist-shaped hole (6) are in a vertical locking state or a parallel unlocking state.

3. The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cooling bed furnace according to claim 2, wherein the device comprises the following components: the state detection device comprises a locking position limit switch (7) and an unlocking position limit switch (8), wherein mounting seats (9) are symmetrically fixed on the left side and the right side of the upper end face of the upper supporting seat (1), the locking position limit switch (7) and the unlocking position limit switch (8) which are positioned on the left side and the right side of the upper end of the rotating sleeve assembly are respectively mounted on the mounting seats (9) on the corresponding sides, two retaining pin shafts (10) which are distributed at 90 degrees are fixed on the middle part of the front wall of the upper end of the rotating sleeve assembly and one side wall of the rotating sleeve assembly, and the two retaining pin shafts (10) respectively trigger the locking position limit switch (7) or the unlocking position limit switch (8) along with the clockwise or anticlockwise rotation of the rotating sleeve assembly, so that the detection of a locking state or an unlocking state is completed.

4. A furnace shell quick-assembly and quick-disassembly connecting device for an electron beam cold bed furnace according to any one of claims 1 to 3, wherein: the rotary sleeve assembly comprises an inner sleeve (11) and an outer sleeve (12), wherein the inner sleeve (11) is of a stepped cylinder structure formed by a large-diameter section at the upper end and a small-diameter section at the lower end, the outer sleeve (12) is sleeved on the inner sleeve (11), a thrust ball bearing I (24) is arranged between the annular inner bottom surface of the outer sleeve (12) and the step surface of the transition connection position of the large-diameter section and the small-diameter section of the outer sleeve (12), a positioning convex ring at the outer edge of the upper end of the outer sleeve (12) is matched with a ring groove at the upper edge of an inner hole of a flange plate (13), a positioning plate (14) which is positioned above the flange plate (13) and used for axially positioning the outer sleeve (12) is sleeved on the large-diameter section of the outer sleeve (12), the positioning plate (14) and the flange plate (13) are detachably fixed on an upper supporting seat (1) through a plurality of screws (15), and the lower end of the inner sleeve (11) is rotatably positioned and connected with a movable section of the lower half part of a length-adjustable adjusting rod (4).

5. The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cold bed furnace according to claim 4, wherein the connecting device comprises the following components: the length-adjustable adjusting rod (4) comprises an adjusting shaft (4-1) and a threaded sleeve (4-2), the kidney-shaped block (5) is arranged at the lower end part of the threaded sleeve (4-2), the upper end and the lower end of the adjusting shaft (4-1) penetrate through an inner sleeve (11) and are connected with the adjusting shaft (4-1) in an adaptive manner, the deep groove ball bearings I (4-3) and the thrust ball bearings II (4-4) which are respectively propped against the upper table surface and the lower table surface of the annular boss in the middle of the adjusting shaft (4-1) are respectively matched in the inner sleeve (11), the bottom of the thrust ball bearings II (4-4) is positioned on the step surface of the inner hole of the inner sleeve (11), the inner hole at the upper end of the inner sleeve (11) is provided with the deep groove ball bearings II (4-8) which are connected with the adjusting shaft (4-1) in an adaptive manner, the inner sleeve (4-9) for positioning the deep groove ball bearings II (4-8) and the inner ring of the deep groove ball bearings I (4-3) is sleeved on the adjusting shaft (4-1), and the upper end of the inner sleeve (11) is fixedly matched with the adjusting shaft (4-1) in a clearance end cover (10); the adjustable screw rod is characterized in that the lower end of the inner sleeve (11) is rotatably positioned and connected with the upper end of the screw sleeve (4-2), the upper end of the screw sleeve (4-2) is in threaded connection with the lower end of the adjusting shaft (4-1), a sealing felt (4-5) which is positioned above the screw sleeve (4-2) and is used for being in contact with the inner wall of the inner sleeve (11) to seal is arranged on the outer wall of the adjusting shaft (4-1), a hand wheel (4-6) which is convenient for rotating the adjusting shaft (4-1) is fixed at the upper end of the adjusting shaft (4-1), and the screw sleeve (4-2) is controlled to lift through the rotation of the adjusting shaft (4-1), so that the integral length of the adjustable adjusting rod (4) is adjusted.

6. The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cold bed furnace according to claim 5, wherein the connecting device comprises the following components: a positioning groove (3) is formed in the inner wall of one side of the lower end of the inner sleeve (11), a key (20) with the outer end face higher than the outer wall of the screw sleeve (4-2) is adapted in a key groove on the outer wall of the upper end of the screw sleeve (4-2), the key (20) is fixed on the screw sleeve (4-2) through a countersunk screw (21), the upper end of the screw sleeve (4-2) is adapted to the inner hole of the lower end of the inner sleeve (11), the key (20) is located in the positioning groove (3), and the screw sleeve (4-2) moves up and down under the cooperation of the key (20) and the positioning groove (3) when the adjusting shaft (4-1) rotates.

7. The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cold bed furnace according to claim 6, wherein the device comprises the following components: the threaded sleeve (4-2) is sleeved with an end nut (4-7) with a T-shaped cross section in threaded connection with the lower end part of the inner sleeve (11).

8. The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cold bed furnace according to claim 7, wherein: the rotary regulation and control locking device comprises a locking position support (16), an unlocking position support (17) and a handle rod (19), wherein the locking position support (16) and the unlocking position support (17) are symmetrically fixed on two side walls of an upper supporting seat (1), the locking position support (16) and the unlocking position support (17) are hinged with positioning hooks (18) with hook openings arranged downwards, the handle rod (19) is vertically arranged with the outer sleeve (12), the inner end part of the handle rod (19) penetrates through a through hole in the outer wall of the outer sleeve (12) and is fixedly connected with threads of the inner sleeve (11), the outer sleeve (12) and the inner sleeve (11) are rotated clockwise or anticlockwise through the handle rod (19), the adjustment of the azimuth of a waist-shaped block (5) at the lower end of a threaded sleeve (4-2) is achieved, the positioning hooks (18) on the locking position support (16) are hung with the handle rod (19) when the waist-shaped block (5) is rotated to be locked, and the positioning hooks (18) on the unlocking position support (17) are hung with the handle rod (19) when the waist-shaped block is rotated to be unlocked.

9. The furnace shell quick-assembly and quick-disassembly connecting device for the electron beam cooling bed furnace according to claim 8, wherein the device comprises the following components: the locking position support (16) and the unlocking position support (17) are provided with an upper positioning screw (22) and a lower positioning screw (23) which are respectively positioned above and below the positioning hook (18), the positioning hook (18) rotates to be connected with the handle rod (19) in a hanging mode, the positioning hook (18) and the lower positioning screw (23) are arranged, and the positioning hook (18) rotates to be in contact with the upper positioning screw (22) when being connected with the handle rod (19) in an unlocking mode.