Portal frame type core stage dismounting device and dismounting method of core intermediate cold plate

Abstract

The invention discloses a portal type core stage dismounting device and a dismounting method of a core intermediate cold plate. The door frame type core stage dismounting device comprises a door-shaped support, an overhead bolt and a gasket, the door-shaped support is used for being installed on a main body cold plate of the dilution refrigerator when the core stage is dismounted, a threaded hole is formed in the door-shaped support, and the overhead bolt is matched with the threaded hole in a threaded mode. And the gasket is clamped between the bottom of the overhead bolt and the core intermediate cold plate of the core stage. When the portal type core stage dismounting device is used for dismounting the core middle cold plate, the operation is simple, a large amount of dismounting time is saved, the replacement expenditure is saved, the surface quality of the main body cold plate in the core middle of the core stage is protected, and the use satisfaction degree of a user is high.

Description

Technical Field

[0001] The present invention relates to the technical fields of installation, replacement and disassembly of ultra-low temperature and low temperature equipment, assembly and disassembly and replacement of tight-fitting parts, and in particular to a gantry-type core stage disassembly device and a core intermediate cold plate disassembly method. Background Art

[0002] The core stage is the most important and critical core part of ultra-low temperature equipment such as dilution refrigerators, and modular design concepts are often adopted in these ultra-low temperature equipment. This modular design is reflected in the core part, that is, the use of universal and easily replaceable modular core stage. By setting standard-sized mounting holes on the main cold plate of the refrigerator, the core stage can be installed on different dilution refrigerators with corresponding standard-sized core stages. This not only fully utilizes the functions of the core stage, but also saves a lot of usage costs. However, while this universal core stage is interchangeable and shared, it also encounters a thorny problem unique to ultra-low temperature equipment. In order to allow the core stage small cold plate and the main cold plate of the equipment to be tightly combined, the mounting holes of the main cold plate and the core stage small cold plate are connected by tight fit. When disassembling or replacing the core stage, this core stage installed by tight fit is difficult to disassemble, and the core stage of this precision high-end equipment does not allow strong impacts and methods that may cause minor damage to parts. Tools such as hammers and chisels used for ordinary disassembly are not allowed to be used in the disassembly operation of the core stage. How to solve this problem of maintaining a tight fit during installation while being able to quickly and conveniently remove the core stage during disassembly is an urgent problem to be solved in this technical field. Summary of the invention

[0003] The first object of the present invention is to provide a gantry-type core stage disassembly device, which is used to disassemble the core middle cold plate. The operation is simple, and a lot of disassembly time and replacement expenses are saved. The surface quality of the main cold plate in the middle of the core of the core stage is protected, and the user satisfaction is high.

[0004] The second object of the present invention is to provide a method for disassembling a core intermediate cold plate. The core intermediate cold plate is disassembled by the method for disassembling the core intermediate cold plate. The operation is simple, a lot of disassembly time is saved, replacement costs are saved, and the surface quality of the main cold plate in the middle of the core of the core-stage platform is protected, and user satisfaction is high.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The present invention discloses a gantry-type core stage disassembly device, comprising: a gantry-type bracket, which is used to be installed on a main body cold plate when disassembling the core stage, and the gantry-type bracket is provided with a threaded hole; a top bolt, the thread of the top bolt is adapted to the threaded hole; a gasket, which is used to be clamped between the bottom of the top bolt and the core middle cold plate of the core stage; wherein: rotating the top bolt can push the core middle cold plate out of the mounting hole on the main body cold plate.

[0007] In some embodiments, the door-shaped bracket is provided with fixing parts at both ends along the length direction thereof, and the fixing parts are used to be fixed on the main cold plate.

[0008] In some specific embodiments, a fixing hole is provided on the fixing portion, and a fixing bolt passes through the fixing hole and is threadedly connected to the main body cold plate to fix the door-shaped bracket on the main body cold plate.

[0009] In some specific embodiments, the door-type bracket also includes a reserved portion, the two fixing portions are located at both ends of the reserved portion, and the threaded hole is provided on the reserved portion; in the vertical direction, the bottom surface of the reserved portion is located at the upper ends of the two fixing portions.

[0010] In some embodiments, the gasket includes a hard gasket and a buffer patch, and the buffer patch is attached to the surface of the hard gasket facing the core intermediate cold plate.

[0011] In some specific embodiments, the hard gasket is a stainless steel gasket, and the buffer patch is a rubber patch.

[0012] In some embodiments, there are two gate-type brackets, and the two gate-type brackets are symmetrically arranged about the core stage.

[0013] The present invention also discloses a method for disassembling a core intermediate cold plate, wherein the method for disassembling the core intermediate cold plate is performed by using the portal-type core stage disassembly device described above, and the method for disassembling the core intermediate cold plate comprises:

[0014] S1: Install the door bracket to the main cold plate;

[0015] S2: Install the top bolt into the threaded hole of the door-shaped bracket, and rotate the top bolt until the distance between the lower end of the top bolt and the core intermediate cold plate is a specified distance;

[0016] S3: attaching a gasket to the core intermediate cold plate of the core stage and arranging it corresponding to the lower end of the top bolt;

[0017] S4: Rotate the top bolt to push the core intermediate cold plate out of the mounting hole of the main body cold plate.

[0018] In some embodiments, in step S1, there are two gate-type brackets, and the two gate-type brackets are symmetrically arranged about the center of the core stage.

[0019] In some embodiments, in step S1, the portal bracket is fixed to the main body cold plate using fixing bolts.

[0020] Beneficial effects of the present invention: The present invention cleverly utilizes the huge thrust generated by the rotation of the overhead bolt to achieve the goal of separating the two fastened fitting components (the main body cold plate and the core intermediate cold plate) while avoiding the impact, destruction and damage to the precision components caused by the use of powerful tools. As a result, when the technical solution disclosed in the present invention is used to disassemble the core intermediate cold plate, the operation is simple, which not only saves a lot of disassembly time and replacement expenses, but also protects the surface quality of the core intermediate cold plate and the main body cold plate of the core-stage platform, and has a high user satisfaction.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the application of the gantry-type core stage disassembly device of an embodiment of the present invention on a dilution refrigerator;

[0023] Figure 2 yes Figure 1 The enlarged schematic diagram of the circled A;

[0024] Figure 3 This is a schematic diagram of the core stage being mounted on the dilution refrigerator with a tight fit.

[0025] Figure 4 This is a schematic diagram of the core stage being disassembled and separated from the main cold plate.

[0026] Reference numerals:

[0027] 100. dilution refrigerator; 101. main cold plate; 102. mounting hole;

[0028] 200, core stage; 201, core intermediate cold plate;

[0029] 300, door-type bracket; 310, fixing portion; 320, reserved portion; 321, threaded hole;

[0030] 400, overhead bolts;

[0031] 500, gasket; 510, hard gasket; 520, buffer patch;

[0032] 600. Fixing bolts. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] The present invention discloses a gantry type core stage disassembly device, referring to Figure 1 and Figure 3 As shown, the portal-type core stage disassembly device includes a portal bracket 300, an overhead bolt 400 and a gasket 500. The portal bracket 300 is used to be installed on the main body cold plate 101 of the dilution refrigerator 100 when disassembling the core stage 200. The portal bracket 300 is provided with a threaded hole 321, and the overhead bolt 400 is adapted to the threaded hole 321. The gasket 500 is used to be clamped between the bottom of the overhead bolt 400 and the core intermediate cold plate 201 of the core stage 200. Rotating the overhead bolt 400 can push the core intermediate cold plate 201 out of the mounting hole 102 on the main body cold plate 101. It can be understood that in the actual working process, a portal bracket 300 is first installed on one side across the core intermediate cold plate 201 and fixed to the main body cold plate 101. When disassembling, screw the top bolt 400 of the corresponding size on the threaded hole 321 of the door bracket 300 and rotate it downward until the top bolt 400 is close to the core intermediate cold plate 201 to be disassembled, and then put a gasket 500 between the top bolt 400 and the core intermediate cold plate 201 (refer to Figure 2As the top bolt 400 is continuously screwed into the threaded hole 321 on the entry bracket 300, the top bolt 400 moves downward, pushing the gasket 500 and the core intermediate cold plate 201 of the core stage 200 downward together, until the core intermediate cold plate 201 is separated from the main cold plate 101 and removed from the dilution refrigerator 100 body (refer to Figure 4 As shown). Therefore, the portal-type core stage disassembly device of the present invention cleverly utilizes the huge thrust generated by the rotation of the top bolt 400, which can separate the two fastening matching parts (the main body cold plate 101 and the core intermediate cold plate 201) and avoid the impact, destruction and damage to the precision parts caused by the use of powerful tools, so that the portal-type core stage disassembly device of this embodiment is used to disassemble the core intermediate cold plate 201, which is simple to operate, saves a lot of disassembly time, saves replacement expenses, and protects the surface quality of the core intermediate cold plate 201 and the main body cold plate 101 of the core stage 200, and the user satisfaction is high.

[0037] refer to Figure 2 As shown, the gate-type bracket 300 is provided with fixing parts 310 at both ends along the length direction thereof, and the fixing parts 310 are used to be fixed on the main body cold plate 101. It can be understood that by providing the fixing parts 310 at both ends of the gate-type bracket 300 and using two fixing parts 310 to fix the gate-type bracket 300, the connection stability between the gate-type bracket 300 and the main body cold plate 101 can be ensured, thereby ensuring that the gate-type bracket 300 can remain stable during the process of disassembling the core intermediate cold plate 201 to ensure that the disassembly operation is carried out steadily.

[0038] refer to Figure 2 As shown, a fixing hole is provided on the fixing portion 310, and a fixing bolt 600 passes through the fixing hole and is threadedly connected to the main cold plate 101 to fix the portal bracket 300 on the main cold plate 101. It can be understood that since there are several threaded mounting holes 102 on the main cold plate 101 itself (these threaded mounting holes 102 are provided on the main cold plate 101 for installing the entire core stage 200), the present invention uses the fixing bolt 600 to pass through the existing threaded mounting holes 102 on the main cold plate 101 to fix the portal bracket 300 on the main cold plate 101, which facilitates the installation of the portal bracket 300, and there is no need to set other connection structures, and there is no need to modify the main cold plate 101, so that the use of the portal-type core stage disassembly device of this embodiment is more convenient.

[0039] refer to Figure 2As shown, the door-type bracket 300 further includes a reserved portion 320, two fixing portions 310 are located at both ends of the reserved portion 320, and threaded holes 321 are provided on the reserved portion 320; in the vertical direction, the bottom surface of the reserved portion 320 is located at the upper ends of the two fixing portions 310. It can be understood that the reserved portion 320 can stably support the top bolt 400, and more than two threaded holes 321 can be provided on the reserved portion 320. In the actual disassembly process, 1-3 top bolts 400 can be installed for disassembly operation.

[0040] refer to Figure 2 As shown, the gasket 500 includes a hard gasket 510 and a buffer patch 520, and the buffer patch 520 is attached to the surface of the hard gasket 510 facing the core intermediate cold plate 201. The hard gasket 510 is a stainless steel gasket, and the buffer patch 520 is a rubber patch. It can be understood that in order to avoid possible damage to the core intermediate cold plate 201 by the stainless steel gasket, the stainless steel gasket is affixed with a soft rubber veneer on the side close to the core intermediate cold plate 201. During the disassembly process, the soft rubber patch is in contact with the core intermediate cold plate 201, which is more conducive to protecting the surface quality of the core intermediate cold plate 201 and the main body cold plate 101 of the core stage 200, and the user satisfaction is high.

[0041] refer to Figure 2 As shown, there are two gantry brackets 300, and the two gantry brackets 300 are symmetrically arranged about the core stage 200. It can be understood that the two gantry brackets 300 are symmetrically arranged on both sides of the core intermediate cold plate 201 to be disassembled, and the top bolts 400 on the two gantry brackets 300 are screwed down at the same time, which can ensure that the core intermediate cold plate 201 slowly moves downward in parallel until the core stage 200 is completely separated from the main body cold plate 101, so that when the gantry-type core stage disassembly device of this embodiment is used to disassemble the core intermediate cold plate 201, the core intermediate cold plate 201 will never tilt away from the mounting hole 102 of the main body cold plate 101, thereby improving user satisfaction.

[0042] The advantages of the gantry-type core stage disassembly device disclosed in the present invention are as follows:

[0043] First, the door-shaped bracket 300 is fixed to the main body cold plate 101 by passing the fixing bolt 600 through the existing threaded mounting hole 102 on the main body cold plate 101, which facilitates the installation of the door-shaped bracket 300 and does not require the provision of other connecting structures;

[0044] Second: a rubber patch is attached to the side of the stainless steel gasket close to the core intermediate cold plate 201. During the disassembly process, the soft rubber patch is in contact with the core intermediate cold plate 201, which is more conducive to protecting the surface quality of the core intermediate cold plate 201 and the main body cold plate 101 of the core stage 200;

[0045] Third: two door-shaped brackets 300 are symmetrically arranged on both sides of the core intermediate cold plate 201 to be disassembled. The top bolts 400 on the two door-shaped brackets 300 are screwed down at the same time to ensure that the core intermediate cold plate 201 moves downward slowly and in parallel, thereby avoiding the core intermediate cold plate 201 from tilting during the disassembly process.

[0046] The present invention also discloses a method for disassembling a core intermediate cold plate. The method for disassembling the core intermediate cold plate is performed by using the above-mentioned gantry-type core stage disassembly device. The method for disassembling the core intermediate cold plate comprises:

[0047] S1: Install the door-shaped bracket 300 onto the main cold plate 101;

[0048] Specifically, a gate-shaped bracket 300 is first installed on one side across the core intermediate cold plate 201, and the gate-shaped bracket 300 is fixed to the position of the existing threaded mounting hole 102 of the main cold plate 101 with a fixing bolt 600. At the same time, another gate-shaped bracket 300 is installed and fixed in the same way on the other side at a symmetrical position.

[0049] S2: Install the top bolt 400 into the threaded hole 321 of the door-shaped bracket 300, and rotate the top bolt 400 until the distance between the lower end of the top bolt 400 and the core intermediate cold plate 201 is a specified distance, and the specified distance can be selected according to actual needs;

[0050] S3: attaching the gasket 500 to the core intermediate cold plate 201 of the core stage 200 and setting it corresponding to the lower end of the top bolt 400; specifically, the gasket 500 is a stainless steel gasket (with a thickness greater than 2 mm), and a rubber patch is provided on one side of the stainless steel gasket facing the core intermediate cold plate 201;

[0051] S4 : rotating the top bolt 400 to push the core stage 200 out of the mounting hole 102 of the main body cold plate 101 .

[0052] In the process of frequently installing and disassembling the core stage 200 in experiments and research and development, the disassembly method of the present invention brings great convenience to the work, and also saves a lot of disassembly time and replacement expenses. Of course, the disassembly method of the present invention also well protects the surface quality of the core stage 200 and the surface quality of the main cold plate 101, especially for the oxygen-free copper cold plate parts with gold plating on the surface. The technicians and engineers in the laboratory are very satisfied with the use effect of the disassembly device of the present invention.

[0053] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A gantry-type core stage disassembly device, characterized in that: include: A door-shaped bracket (300), the door-shaped bracket (300) being used to be installed on the main cold plate (101) when the core stage (200) is disassembled, and the door-shaped bracket (300) is provided with a threaded hole (321); A top bolt (400), wherein the thread of the top bolt (400) is adapted to fit in the threaded hole (321); A gasket (500) is used to be clamped between the bottom of the top bolt (400) and the core intermediate cold plate (201) of the core stage (200); wherein: rotating the top bolt (400) can push the core intermediate cold plate (201) out of the mounting hole (102) on the main body cold plate (101).

2. The gantry-type core stage disassembly device according to claim 1, characterized in that: The door-shaped bracket (300) is provided with fixing parts (310) at both ends along the length direction thereof, and the fixing parts (310) are used to be fixed on the main body cold plate (101).

3. The gantry-type core stage disassembly device according to claim 2, characterized in that: The fixing portion (310) is provided with a fixing hole, and a fixing bolt (600) passes through the fixing hole and is threadedly connected to the main body cold plate (101) to fix the door-shaped bracket (300) on the main body cold plate (101).

4. The gantry-type core stage disassembly device according to claim 2, characterized in that: The door-shaped bracket (300) further comprises a reserved portion (320), the two fixing portions (310) are located at two ends of the reserved portion (320), and the threaded hole (321) is provided on the reserved portion (320); in the vertical direction, the bottom surface of the reserved portion (320) is located at the upper ends of the two fixing portions (310).

5. The gantry-type core stage disassembly device according to claim 1, characterized in that: The gasket (500) comprises a hard gasket (510) and a buffer patch (520), wherein the buffer patch (520) is attached to the surface of the hard gasket (510) facing the core intermediate cold plate (201).

6. The gantry-type core stage disassembly device according to claim 5, characterized in that: The hard gasket (510) is a stainless steel gasket, and the buffer patch (520) is a rubber patch.

7. The gantry-type core stage disassembly device according to any one of claims 1 to 6, characterized in that: There are two gate-type brackets (300), and the two gate-type brackets (300) are symmetrically arranged with respect to the core stage (200).

8. A method for disassembling a core intermediate cold plate, characterized in that: The core intermediate cold plate disassembly method is performed using a gantry-type core stage disassembly device as described in any one of claims 1 to 7, and the core intermediate cold plate disassembly method comprises: S1: Installing the door-shaped bracket (300) onto the main cold plate (101); S2: installing the top bolt (400) into the threaded hole (321) of the door-shaped bracket (300), and rotating the top bolt (400) until the distance between the lower end of the top bolt (400) and the core intermediate cold plate (201) is a specified distance; S3: attaching a gasket (500) to the core intermediate cold plate (201) of the core stage (200) and arranging it corresponding to the lower end of the top bolt (400); S4: rotating the top bolt (400) to push the core intermediate cold plate (201) out of the mounting hole (102) of the main body cold plate (101).

9. The method for disassembling the core intermediate cold plate according to claim 8, characterized in that: In step S1, there are two gate-type supports (300), and the two gate-type supports (300) are symmetrically arranged about the center of the core stage (200).

10. The method for disassembling the core intermediate cold plate according to claim 8, characterized in that: In step S1, the door-shaped bracket (300) is fixed to the main body cold plate (101) using fixing bolts (600).

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