Vacuum drying equipment

Abstract

The utility model discloses vacuum drying equipment. The vacuum drying equipment comprises a tank main body and a door opening and closing device, the tank body is provided with an inner containing cavity, and the inner containing cavity is provided with a forward opening. The door opening and closing device comprises a supporting frame, a tank door and a tank door driving mechanism, the supporting frame is arranged corresponding to the front end of the tank body, the tank door is connected to the supporting frame and can ascend and descend vertically relative to the supporting frame, and the tank door can move downwards to the position for closing the opening of the inner containing cavity and can move upwards to the position for opening the opening of the inner containing cavity. The tank door driving mechanism is arranged on the supporting frame and used for driving the tank door to ascend and descend. Wherein a self-weight automatic locking mechanism is further arranged between the supporting frame and the tank door, and when the tank door is located at the position where the opening of the inner containing cavity is closed, the self-weight automatic locking mechanism can convert the gravity of the tank door into force enabling the tank door to press the tank body. According to the vacuum drying equipment, the tightness when the tank door is closed can be improved.

Description

Technical Field

[0001] The utility model relates to production equipment, in particular to vacuum drying equipment. Background Art

[0002] In the field of power transformer production, vacuum drying equipment is required to vacuum dry the transformer during the production process. Most of the existing vacuum drying equipment adopts a horizontal side-opening door structure. This tank door structure will occupy more workshop space. For some factories with limited workshop space layout, this traditional structure cannot be installed and cannot meet customer needs. In order to solve the problem of limited space, in the prior art, some vacuum drying equipment also sets the door to a vertically open structure, but this type of vacuum drying equipment still has the defect of insufficient tightness when closing the door. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a vacuum drying device that can improve the tightness of the tank door when it is closed.

[0004] According to the vacuum drying equipment of the embodiment of the utility model, it includes: a tank body, which is provided with an inner cavity, and the inner cavity is provided with an opening facing forward; an opening and closing door device, including a support frame, a tank door and a tank door driving mechanism, the support frame is arranged corresponding to the front end of the tank body, the tank door is connected to the support frame and can be lifted up and down relative to the support frame, the tank door can move downward to a position closing the opening of the inner cavity and can move upward to a position opening the opening of the inner cavity, the tank door driving mechanism is arranged on the support frame and is used to drive the tank door to rise and fall; wherein, a self-weight automatic locking mechanism is also arranged between the support frame and the tank door, and when the tank door is in the position closing the opening of the inner cavity, the self-weight automatic locking mechanism can convert the gravity of the tank door into a force that presses the tank door toward the tank body.

[0005] The vacuum drying equipment according to the embodiment of the utility model has at least the following beneficial effects: by adopting the above-mentioned structure and arranging a self-weight automatic locking mechanism, the tank door can be pressed against the tank body with the help of gravity when closing the opening of the tank body, thereby forming a more reliable seal and improving the sealing performance of the equipment; the greater the self-weight of the tank door, the greater the locking force, thereby being able to adaptively and effectively ensure the locking force, avoiding the problem that the general locking mechanism cannot be fully locked due to the excessive mass of the tank door; by utilizing the self-weight of the tank door to automatically lock the tank door, the structure and operation are simpler than adopting an active locking mechanism.

[0006] According to some embodiments of the utility model, the self-weight automatic locking mechanism includes a top block and a guide shaft, one of the top block and the guide shaft is arranged on the support frame, and the other is arranged on the tank door, the top block is provided with a guide slope, the guide shaft can abut against the guide slope, and the inclination direction of the guide slope is configured so that the pressure applied to the guide slope can form a component force that is finally applied to the tank door in the direction in which the tank door pushes toward the tank body.

[0007] According to some embodiments of the present utility model, the guide shaft includes a connecting shaft body and a guide roller, the guide roller is rotatably disposed on the connecting shaft body, and the guide roller can abut against the guide inclined surface.

[0008] According to some embodiments of the utility model, at least four groups of the top blocks and the guide shafts are provided, and the at least four groups of the top blocks and the guide shafts are provided corresponding to the upper left, lower left, upper right and lower right of the tank door, respectively.

[0009] According to some embodiments of the utility model, the top block is arranged on the support frame, and the guide shaft is arranged on the tank door; the support frame includes two vertical pillars, and the two vertical pillars are respectively arranged on the left and right sides of the tank door, and the vertical pillars are provided with a limiting groove on the side facing the tank door, and the limiting groove extends vertically and the groove opening faces the tank door, and the guide shafts are arranged in a queue along the up and down directions on both sides of the tank door and inserted into the limiting grooves on the corresponding sides, and the top block is fixed in the limiting grooves.

[0010] According to some embodiments of the utility model, the tank door driving mechanism includes a pulley block, a tank door pull rope and a lifting drive, the pulley block is arranged on the support frame, the tank door pull rope is wound around the pulley block, the tank door is connected to the tank door pull rope and is hoisted to the support frame through the tank door pull rope, the lifting drive is arranged on the support frame, the lifting drive is connected to the pulley block or the tank door pull rope, and the lifting drive is used to drive the tank door pull rope to pull up the tank door and relax the tank door downward.

[0011] According to some embodiments of the utility model, a fall arrester is further included, wherein the fall arrester is arranged on the support frame and connected to the tank door.

[0012] According to some embodiments of the utility model, a left-right swing prevention mechanism is also included, and the left-right swing prevention mechanism is used to limit the left-right swing of the tank door relative to the support frame.

[0013] According to some embodiments of the utility model, the support frame includes two vertical pillars, which are respectively arranged on the left and right sides of the tank door, and the anti-left and right swinging mechanism includes at least two top-limiting components, which are arranged on the left and right sides of the tank door, and the top-limiting components are used to cooperate with the vertical pillars on the corresponding side and limit the tank door to between the two vertical pillars.

[0014] According to some embodiments of the utility model, the top limit assembly includes a fixed seat, an adjustment seat and a pressure wheel, the fixed seat is fixedly connected to the tank door, the adjustment seat is arranged on the fixed seat and can adjust the left and right positions relative to the fixed seat, the pressure wheel is arranged on the adjustment seat, and the pressure wheels on the left and right sides of the tank door are respectively facing the vertical pillars on the corresponding sides.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the utility model when the tank door is opened;

[0018] Figure 2 This is a three-dimensional schematic diagram of a tank door of an embodiment of the utility model when it is closed;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0020] Figure 4 It is a partial enlarged schematic diagram of the tank door according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] Tank body 100, inner cavity 110, open mouth 111;

[0023] Door opening and closing device 200, support frame 210, tank door 220, tank door driving mechanism 230, vertical support 211, cross beam 212, limit groove 2111, pulley block 231, tank door pull rope 232, lifting driver 233, fixed pulley 2311, movable pulley 2312;

[0024] The self-weight automatic locking mechanism 300, the top block 310, the guide shaft 320, the guide slope 311, the connecting shaft 321, the guide roller 322, and the parallel shaft 330;

[0025] Fall arrester 400;

[0026] The top limiting assembly 510 , the fixing seat 511 , the adjusting seat 512 , the pressing wheel 513 , the strip hole 5121 , the fixing screw 514 , and the adjusting screw 515 . DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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 a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figures 1 to 4A vacuum drying device includes a tank body 100 and a door opening and closing device 200. The tank body 100 is provided with an inner cavity 110, and the inner cavity 110 is provided with an opening 111 facing forward. The door opening and closing device 200 includes a support frame 210, a tank door 220, and a tank door driving mechanism 230. The support frame 210 is provided corresponding to the front end of the tank body 100. The tank door 220 is connected to the support frame 210 and can be lifted up and down relative to the support frame 210. The tank door 220 can move downward to a position closing the opening 111 of the inner cavity 110 and can move upward to a position opening the opening 111 of the inner cavity 110. The tank door driving mechanism 230 is provided on the support frame 210 and is used to drive the tank door 220 to rise and fall. Among them, a self-weight automatic locking mechanism 300 is also arranged between the support frame 210 and the tank door 220. When the tank door 220 is in a position to close the opening 111 of the inner cavity 110, the self-weight automatic locking mechanism 300 can convert the gravity of the tank door 220 into a force that presses the tank door 220 toward the tank body 100.

[0032] By adopting the above structure and setting up an automatic locking mechanism 300 due to its own weight, the tank door 220 can be pressed against the tank body 100 with the help of gravity when closing the opening 111 of the tank body 100, thereby forming a more reliable seal and improving the sealing performance of the equipment; the greater the deadweight of the tank door 220, the greater the locking force, so that the locking force can be effectively guaranteed adaptively, avoiding the problem that the general locking mechanism cannot be fully locked due to the excessive mass of the tank door 220; by utilizing the deadweight of the tank door 220 to automatically lock the tank door 220, the structure and operation are simpler than adopting an active locking mechanism.

[0033] In the embodiment, the self-weight automatic locking mechanism 300 includes a top block 310 and a guide shaft 320, the top block 310 is arranged on the support frame 210, the guide shaft 320 is arranged on the tank door 220, the top block 310 is provided with a guide slope 311, the guide shaft 320 can abut against the guide slope 311, and the inclination direction of the guide slope 311 is configured to: the pressure applied to the guide slope 311 can form a component force that is finally applied to the tank door 220 in the direction in which the tank door 220 pushes toward the tank body 100. It is conceivable that the positions where the top block 310 and the guide shaft 320 are set can also be interchanged, and can be specifically configured according to actual conditions without being limited to the implementation shown in the drawings. The above-mentioned self-weight automatic locking mechanism 300 has a simple structure and is easy to implement.

[0034] It is conceivable that the self-weight automatic locking mechanism 300 is not limited to the above-mentioned embodiments. For example, it may include a cam, which is rotatably arranged on the support frame 210, and the tank door 220 is provided with a linkage surface that cooperates with the cam. When the tank door 220 moves downward, the cam is driven to rotate through the linkage surface. When the cam rotates, the raised part of the cam pushes the tank door 220 toward the tank body 100, so that the gravity of the tank door 220 applies a component force to the tank door 220 with the help of the cam, thereby also realizing the function of locking the tank door 220. In the above-mentioned embodiments, the linkage surface is, for example, a friction surface, or a toothed surface, and the cam is provided with a corresponding friction surface or a meshing tooth surface to cooperate accordingly.

[0035] In the embodiment, the guide shaft 320 includes a connecting shaft body 321 and a guide roller 322. The guide roller 322 is rotatably disposed on the connecting shaft body 321, and the guide roller 322 can abut against the guide inclined surface 311. By providing the guide roller 322, friction can be reduced and the life of the component can be improved. Of course, in some embodiments, the guide shaft 320 can also be configured as an optical axis to cooperate with the top block 310.

[0036] In the embodiment, four groups of top blocks 310 and guide shafts 320 are provided, and the four groups of top blocks 310 and guide shafts 320 are respectively provided corresponding to the upper left, lower left, upper right and lower right of the tank door 220. By providing the top blocks 310 and guide shafts 320 at the upper left, lower left, upper right and lower right positions of the tank door 220, each part of the tank door 220 can be balanced and pressed against the tank body 100. It is conceivable that it is not limited to only providing four groups of top blocks 310 and guide shafts 320, for example, more than four groups can be provided, such as further providing one or more groups of top blocks 310 and guide shafts 320 between the lower left and the lower left, and between the upper right and the lower right. It is understandable that the top blocks 310 and guide shafts 320 can also be provided in at least one group, or two groups, three groups, etc., which can be specifically configured according to the shape and structure of the tank door 220.

[0037] In the embodiment, the support frame 210 includes two vertical pillars 211, which are respectively arranged on the left and right sides of the tank door 220. The vertical pillars 211 are provided with a limiting groove 2111 on the side facing the tank door 220. The limiting groove 2111 extends vertically and the groove faces the tank door 220. The guide shafts 320 are arranged in a row along the up-down direction on both sides of the tank door 220 and inserted into the limiting grooves 2111 on the corresponding sides. The top block 310 is fixed in the limiting grooves 2111. Through the above structure, the tank door 220 can be matched with the vertical pillars 211 on both sides of the tank door 220, and the tank door 220 is limited in the limiting grooves 2111, and the overall structure is stable.

[0038] In the embodiment, in order to make the tank door 220 and the vertical pillar 211 cooperate more stably, a parallel shaft 330 corresponding to the guide shaft 320 is provided on the tank door 220, and the parallel shaft 330 has the same structure as the guide shaft 320. The parallel shaft 330 and the guide shaft 320 are arranged side by side up and down, and the parallel shaft 330 is also inserted in the corresponding limit groove 2111.

[0039] In the embodiment, the tank door driving mechanism 230 includes a pulley block 231, a tank door rope 232 and a lifting driver 233, the pulley block 231 is arranged on the support frame 210, the tank door rope 232 is wound around the pulley block 231, the tank door 220 is connected to the tank door rope 232 and is hoisted on the support frame 210 through the tank door rope 232, the lifting driver 233 is arranged on the support frame 210, the lifting driver 233 is connected to the pulley block 231 (in some embodiments, it can also be connected to the tank door rope 232), and the lifting driver 233 is used to drive the tank door rope 232 to pull up the tank door 220 and to release the tank door 220 downward. The above structure is suitable for driving the tank door 220 with a large mass to be lifted and lowered. In the embodiment, the lifting driver 233 can also be connected to the tank door rope 232, which can be selected according to the composition of the pulley block 231.

[0040] In the embodiment, the pulley block 231 includes two fixed pulleys 2311 and one movable pulley 2312, the support frame 210 is a gantry, the upper ends of the two vertical pillars 211 are connected with a crossbeam 212, the left and right ends of the crossbeam 212 are respectively fixed to the upper ends of the vertical pillars 211, the two fixed pulleys 2311 are arranged on the crossbeam 212 and are spaced apart along the crossbeam 212, one of the fixed pulleys 2311 is vertically opposite to the middle of the tank door 220, the movable pulley 2312 is arranged corresponding to one of the vertical pillars 211, the lifting driver 233 is a hydraulic cylinder and is vertically fixed to the above-mentioned vertical pillar 211, and the piston rod of the lifting driver 233 is connected to the movable pulley 2312 through a pull rope. The above structure is driven by a single hydraulic cylinder, the structure is simple, and the cost is low.

[0041] It is conceivable that the pulley block 231 is not limited to the above-mentioned embodiments. In the art, there are many other embodiments of the pulley block 231, and those skilled in the art can configure them according to actual conditions. In the embodiment, the lifting drive 233 adopts a hydraulic cylinder. It is conceivable that the lifting drive 233 is not limited to the hydraulic cylinder, and for example, a lifting motor, a lifting platform, etc. are adopted.

[0042] In the embodiment, a fall arrester 400 is further included. The fall arrester 400 is disposed on the support frame 210 and connected to the tank door 220, thereby increasing the safety of the equipment.

[0043] In an embodiment, a left-right swing prevention mechanism is also included, and the left-right swing prevention mechanism is used to limit the left-right swing of the tank door 220 relative to the support frame 210, thereby increasing the stability of the hoisted tank door 220.

[0044] In the embodiment, the anti-left and right swing mechanism includes a plurality of top-limiting components 510, and the top-limiting components 510 are provided on both the left and right sides of the tank door 220, and the top-limiting components 510 are used to cooperate with the corresponding side vertical pillars 211 and limit the tank door 220 between the two vertical pillars 211. The above-mentioned anti-left and right swing mechanism has a simple structure and is easy to implement. It is conceivable that the anti-left and right swing mechanism is not limited to the above-mentioned structure. For example, adding some guide structures so that the tank door 220 can maintain vertical stability through the guide structures can also achieve the effect of limiting the left and right swing of the tank door 220.

[0045] In the embodiment, the upper left, lower left, upper right and lower right positions of the tank door 220 are provided with stop and limit assemblies 510, so as to stably limit the left and right swing of the tank door 220. Of course, it is conceivable that in some embodiments, at least one stop and limit assemblies 510 are provided on the left and right sides of the tank door 220, respectively.

[0046] In the embodiment, the top limit assembly 510 includes a fixed seat 511, an adjustment seat 512 and a pressing wheel 513. The fixed seat 511 is fixedly connected to the tank door 220. The adjustment seat 512 is arranged on the fixed seat 511 and can adjust the left and right positions relative to the fixed seat 511. The pressing wheel 513 is arranged on the adjustment seat 512. The pressing wheels 513 on the left and right sides of the tank door 220 are respectively facing the vertical pillars 211 on the corresponding sides. By adjusting the left and right positions through the adjustment seat 512, the specific limit degree can be adjusted, which is convenient for adjustment according to actual conditions.

[0047] In the embodiment, the adjustment seat 512 is provided with a bar hole 5121 extending in the left-right direction, and the fixed seat 511 is provided with a screw hole (not shown in the drawings) corresponding to the bar hole 5121, and a fixing screw 514 is passed through the bar hole 5121, and the fixing screw 514 is threadedly connected to the screw hole and used to fasten the adjustment seat 512 to the fixed seat 511; the fixed seat 511 is threadedly connected with an adjustment screw 515, and the adjustment screw 515 is arranged in the left-right direction, and one end of the adjustment screw 515 presses against the adjustment seat 512. When adjusting the left-right position of the adjustment seat 512, the fixing screw 514 can be loosened so that the adjustment seat 512 can adjust the position along the bar hole 5121. When fine adjustment is performed, the adjustment screw 515 can be used to finely adjust the left-right position of the adjustment seat 512. It can be understood that in the art, there are many other embodiments to achieve the adjustable position of a component relative to another component along a predetermined direction, such as through a screw mechanism, a gear mounting hole structure, etc., and those skilled in the art can configure according to actual conditions.

[0048] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A vacuum drying device, characterized in that: include: The tank body (100) is provided with an inner cavity (110), wherein the inner cavity (110) is provided with an opening (111) facing forward; The door opening and closing device (200) comprises a support frame (210), a tank door (220) and a tank door driving mechanism (230), wherein the support frame (210) is arranged corresponding to the front end of the tank body (100), the tank door (220) is connected to the support frame (210) and can be lifted up and down relative to the support frame (210), the tank door (220) can move downward to a position closing the opening (111) of the content cavity (110) and can move upward to a position opening the opening (111) of the content cavity (110), and the tank door driving mechanism (230) is arranged on the support frame (210) and is used to drive the tank door (220) to be lifted up and down; A self-weight automatic locking mechanism (300) is also provided between the support frame (210) and the tank door (220). When the tank door (220) is in a position to close the opening (111) of the inner cavity (110), the self-weight automatic locking mechanism (300) can convert the gravity of the tank door (220) into a force that presses the tank door (220) toward the tank body (100).

2. The vacuum drying device according to claim 1, characterized in that: The self-weight automatic locking mechanism (300) comprises a top block (310) and a guide shaft (320), one of the top block (310) and the guide shaft (320) being arranged on the support frame (210), and the other being arranged on the tank door (220), the top block (310) being provided with a guide slope (311), the guide shaft (320) being capable of abutting against the guide slope (311), and the inclination direction of the guide slope (311) being configured such that the pressure applied to the guide slope (311) can form a component force finally applied to the tank door (220) in the direction in which the tank door (220) is pushed toward the tank body (100).

3. The vacuum drying device according to claim 2, characterized in that: The guide shaft (320) comprises a connecting shaft body (321) and a guide roller (322); the guide roller (322) is rotatably disposed on the connecting shaft body (321); and the guide roller (322) can abut against the guide inclined surface (311).

4. The vacuum drying equipment according to claim 2, characterized in that: At least four groups of the top blocks (310) and the guide shafts (320) are provided, and the at least four groups of the top blocks (310) and the guide shafts (320) are provided corresponding to the upper left, lower left, upper right and lower right of the tank door (220), respectively.

5. The vacuum drying device according to claim 4, characterized in that: The top block (310) is arranged on the support frame (210), and the guide shaft (320) is arranged on the tank door (220); the support frame (210) comprises two vertical pillars (211), and the two vertical pillars (211) are respectively arranged on the left and right sides of the tank door (220); the vertical pillars (211) are provided with a limiting groove (2111) on a side facing the tank door (220); the limiting groove (2111) extends vertically and the groove opening faces the tank door (220); the guide shafts (320) are arranged in a row along the up and down direction on both sides of the tank door (220) and inserted into the limiting grooves (2111) on the corresponding sides; and the top block (310) is fixed in the limiting grooves (2111).

6. The vacuum drying equipment according to claim 1, characterized in that: The tank door driving mechanism (230) comprises a pulley block (231), a tank door pull rope (232) and a lifting driver (233); the pulley block (231) is arranged on the support frame (210); the tank door pull rope (232) is wound around the pulley block (231); the tank door (220) is connected to the tank door pull rope (232) and is hoisted on the support frame (210) through the tank door pull rope (232); the lifting driver (233) is arranged on the support frame (210); the lifting driver (233) is connected to the pulley block (231) or to the tank door pull rope (232); the lifting driver (233) is used to drive the tank door pull rope (232) to pull up the tank door (220) and to loosen the tank door (220) downward.

7. The vacuum drying device according to claim 6, characterized in that: It also includes a fall arrester (400), which is arranged on the support frame (210) and connected to the tank door (220).

8. The vacuum drying equipment according to claim 6, characterized in that: It also includes an anti-left-right swing mechanism, which is used to limit the left-right swing of the tank door (220) relative to the support frame (210).

9. The vacuum drying device according to claim 8, characterized in that: The support frame (210) comprises two vertical pillars (211), and the two vertical pillars (211) are respectively arranged on the left and right sides of the tank door (220). The anti-left and right swing mechanism comprises at least two top-stop limiting assemblies (510), and the left and right sides of the tank door (220) are both provided with the top-stop limiting assemblies (510). The top-stop limiting assemblies (510) are used to cooperate with the vertical pillars (211) on the corresponding side and limit the tank door (220) between the two vertical pillars (211).

10. The vacuum drying equipment according to claim 9, characterized in that: The top stopper assembly (510) comprises a fixed seat (511), an adjusting seat (512) and a pressing wheel (513); the fixed seat (511) is fixedly connected to the tank door (220); the adjusting seat (512) is arranged on the fixed seat (511) and can adjust the left and right positions relative to the fixed seat (511); the pressing wheel (513) is arranged on the adjusting seat (512); the pressing wheels (513) on the left and right sides of the tank door (220) are respectively oriented toward the vertical pillars (211) on the corresponding sides.

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