CN111022848B - Fixing device and cold box - Google Patents
Fixing device and cold box Download PDFInfo
- Publication number
- CN111022848B CN111022848B CN201911219569.6A CN201911219569A CN111022848B CN 111022848 B CN111022848 B CN 111022848B CN 201911219569 A CN201911219569 A CN 201911219569A CN 111022848 B CN111022848 B CN 111022848B
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- Prior art keywords
- gasket
- washer
- bolt
- flange
- cold box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
一种固定装置，包括转运螺套、螺栓、第一垫圈、第二垫圈、第三垫圈和开设有定位孔的法兰；转运螺套和待固定结构固定连接。螺栓穿设于定位孔内，第一垫圈、第二垫圈、第三垫圈依次设于法兰和螺栓的螺帽之间，第一垫圈的内圆周开设有凹槽，第二垫圈为压力垫圈，第三垫圈为平垫圈；螺栓远离螺帽的一端和转运螺套通过螺纹连接。上述固定装置，将螺栓和转运螺套进行连接时，螺栓将压紧力传递到第三垫圈，压紧力通过第二垫圈产生集中压力，集中压力作用到第一垫圈的开槽范围内，使第一垫圈发生变形嵌入法兰的定位孔内，即可完成待固定结构相对于法兰的定位和固定，操作方便，安装简单。此外，还提供一种采用上述固定装置固定冷箱箱体和换热器的冷箱。
A fixing device comprises a transfer screw sleeve, a bolt, a first washer, a second washer, a third washer and a flange with a positioning hole; the transfer screw sleeve is fixedly connected with a structure to be fixed. The bolt is penetrated in the positioning hole, the first washer, the second washer and the third washer are sequentially arranged between the flange and the nut of the bolt, the inner circumference of the first washer is provided with a groove, and the second washer is a pressure washer, The third washer is a flat washer; the end of the bolt away from the nut and the transfer nut are threadedly connected. The above-mentioned fixing device, when the bolt and the transfer screw sleeve are connected, the bolt transmits the pressing force to the third washer, and the pressing force generates concentrated pressure through the second washer, and the concentrated pressure acts on the slotted range of the first washer, so that the The first gasket is deformed and inserted into the positioning hole of the flange, so that the positioning and fixing of the structure to be fixed relative to the flange can be completed, and the operation is convenient and the installation is simple. In addition, a cold box using the above-mentioned fixing device to fix the cold box box and the heat exchanger is also provided.
Description
Technical Field
The invention relates to the technical field of connecting structures of a cold box and a heat exchanger, in particular to a fixing device for connecting the cold box and the heat exchanger.
Background
The heat exchanger is one of key parts in the cold box, the heat exchanger is large in size and heavy in weight, acceleration or deceleration conditions exist in the whole transportation process of the cold box, the cold box cylinder body and a vehicle are fixed together at the moment, acceleration acts on the heat exchanger to enable the heat exchanger to generate a relative displacement trend, the heat exchanger needs to be positioned and fixed relative to the cold box cylinder body, and the fixed form of the heat exchanger has important influence on the transportation reliability of cold box equipment.
At present, traditional fixed mode is that the bolt upper end carries out threaded connection with the heat exchanger, and the bolt lower extreme carries out clearance fit with the trompil of cold box bottom plate, realizes the location and the fixing of heat exchanger through clearance fit, and its drawback is that clearance fit required precision is high, need adjust mounted position and angle repeatedly, and the difficult process of installation is loaded down with trivial details.
Disclosure of Invention
In view of this, it is desirable to provide a fixing device for connection of a cold box and a heat exchanger that is relatively simple to install.
A fixing device comprises a transfer threaded sleeve, a bolt, a first gasket, a second gasket, a third gasket and a flange;
one end of the transfer threaded sleeve is fixedly connected with the structure to be fixed;
the flange is provided with a positioning hole, the bolt penetrates through the positioning hole, the first gasket, the second gasket and the third gasket are sequentially arranged between the flange and a nut of the bolt, the first gasket is close to the flange, the third gasket is close to the nut, the inner circumference of the first gasket is provided with a groove, the second gasket is a pressure gasket, and the third gasket is a flat gasket;
one end of the bolt, which is far away from the nut, is connected with the transfer threaded sleeve through threads.
In one embodiment, the inner circumference of the first gasket defines a cruciform depression.
In one embodiment, the bolt is a socket head cap screw.
In one embodiment, the length of the groove is greater than the outer diameter of the second washer.
In one embodiment, the first gasket has a thickness of 4-6 mm.
In one embodiment, the second gasket has a thickness of 4-6 mm.
In one embodiment, the third gasket has a thickness of 4-6 mm.
In one embodiment, the third washer has an inner diameter that is the same as the inner diameter of the first washer and an outer diameter that is the same as the outer diameter of the first washer.
In one embodiment, the structure further comprises a transfer plate, one end of the transfer screw sleeve is fixedly connected with the transfer plate, and the transfer plate is fixedly connected with the structure to be fixed.
A cold box comprises a cold box body, a heat exchanger and the fixing device;
the heat exchanger is arranged in the cold box body;
one end of the transfer threaded sleeve is fixedly connected with the heat exchanger;
the flange is fixedly connected with the bottom of the cold box.
Compare in traditional heat exchanger and cold box's fixed mode be that bolt upper end and heat exchanger carry out threaded connection, and the bolt lower extreme carries out clearance fit with the trompil of cold box bottom plate, and clearance fit is that the screw rod outside accomplishes radial fixed with the downthehole laminating of flange, needs to adjust screw rod and flange hole to complete the installation with one heart completely. The utility model provides an above-mentioned fixing device, treat the one end fixed connection of fixed knot structure and transportation swivel nut, when connecting bolt and transportation swivel nut, the bolt transmits the packing force to the third packing ring, the packing force produces concentrated pressure through the second packing ring, concentrated pressure is used in the fluting scope of first packing ring, make first packing ring take place to warp and imbed in the locating hole of flange, can accomplish and treat radial positioning and the fixed of fixed knot structure for the flange, the condition of eccentric or slope allows to exist, need not to adjust mounted position and angle repeatedly, high durability and convenient operation, and simple installation.
Above-mentioned cold box, heat exchanger and cold box are connected through above-mentioned fixing device, need not to adjust mounted position and angle repeatedly, convenient operation, and the installation is simple.
Drawings
FIG. 1 is a schematic view of a partial structure of a cold box according to an embodiment;
FIG. 2 is a schematic view of an embodiment of a fastening device;
fig. 3 is a schematic structural diagram of a first gasket according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The fixed connection in the present invention includes direct fixed connection and indirect fixed connection.
Referring to fig. 1 to 3, a fixing device of an embodiment includes a transfer nut 4, a bolt 1, a first washer 2, a second washer 5, a third washer 3, and a flange 8.
One end of the transfer screw sleeve 4 is fixedly connected with the structure to be fixed.
The flange 8 is provided with a positioning hole 82, the bolt 1 penetrates through the positioning hole 82, the first gasket 2, the second gasket 5 and the third gasket 3 are sequentially arranged between the flange 8 and a nut of the bolt 1, the first gasket 2 is close to the flange 8, the third gasket 3 is close to the nut, the inner circumference of the first gasket 2 is provided with a groove 22, the second gasket 5 is a pressure gasket, and the third gasket 3 is a flat gasket.
One end of the bolt 1 far away from the nut is connected with the transfer threaded sleeve 4 through threads.
Compare in traditional heat exchanger and cold box's fixed mode be that bolt upper end and heat exchanger carry out threaded connection, and the bolt lower extreme carries out clearance fit with the trompil of cold box bottom plate, and clearance fit is that the screw rod outside accomplishes radial fixed with the downthehole laminating of flange, needs to adjust screw rod and flange hole to complete the installation with one heart completely. The utility model provides an above-mentioned fixing device, treat the one end fixed connection of fixed knot structure and transportation swivel nut 4, when connecting bolt 1 and transportation swivel nut 4, bolt 1 transmits the packing force to third packing ring 3, the packing force passes through second packing ring 5 and produces concentrated pressure, concentrated pressure is used in the fluting scope of first packing ring 2, make first packing ring 2 take place to warp and imbed in the locating hole 82 of flange 8, can accomplish and treat the radial positioning and the fixing of fixed knot structure for flange 8, allow the condition that has off-centre or slope, need not to adjust mounted position and angle repeatedly, high durability and convenient operation, and simple installation.
The above-described fixing means can be used to fix the box of the cold box and the heat exchanger 6. In addition, the fixing device can also be used for fixing other two structures needing to be fixed.
In one embodiment, the bolt 1 is a socket head cap screw. Specifically, the inner hexagonal socket head cap screw is in the specification of M36 in GB/T70.1-2008 standard. The length of the bolt 1 can be selected according to the distance between the transfer screw sleeve 4 and the cold box bottom flange 8. The material of the socket head cap screw is A2-70. The bolt 1 is used to apply pressure to the washer assembly to secure the device.
In one embodiment, the inner diameters of the first washer 2, the second washer 5, and the third washer 3 are each slightly larger than the diameter of the bolt 1. The inner circumferences of the first, second, and third washers 2, 5, and 3 are in contact with the outer circumference of the bolt 1. The first, second and third washers 2, 5, 3 have the same inner diameter. At this time, a more precise connection structure can be better formed between the bolt 1 and the washer assembly composed of the first washer 2, the second washer 5 and the third washer 3.
In the embodiment shown in fig. 3, the inner circumference of the first gasket 2 is provided with a cross-shaped groove 22. It will be appreciated that in other embodiments, the inner circumference of the first gasket 2 is provided with 2 grooves 22, 3 grooves 22 or other numbers of grooves 22. The number of the grooves 22 formed in the inner circumference of the first gasket 2 may be set according to the actual conditions such as the thickness of the first gasket 2, the inner diameter and the outer diameter of the first gasket 2, and the like.
In one embodiment, the cross-slot washer is a non-standard piece. The outer diameter of the first gasket 2 is dimensioned according to the KF flange 8 welded to the cold box. The outer diameter of the first gasket is 4-6mm smaller than the inner diameter of the KF flange. This dimension is the range that allows the screw to be eccentric to the flange bore. The inner diameter of the first gasket 2 is sized to the locating hole 82 of the flange 8 of the cold box bottom. In one embodiment, the inner diameter of the first gasket 2 is smaller than the diameter of the positioning hole 82 of the flange 8 of the cold box bottom.
The length of the groove 22 of the first gasket 2 is determined according to the outer diameter of the second gasket 5. Specifically, in one embodiment, the length of the groove 22 is greater than the outer diameter of the second gasket 5. At this time, when the second gasket 5 is pressed toward the first gasket 2, the second gasket 5 acts on the first gasket 2, so that the first gasket 2 is depressed along the groove 22 and the second gasket 5 is fitted into the groove 22 of the first gasket 2.
In one embodiment, the thickness of the first gasket 2 is 4-6 mm. The material of the first gasket 2 is S30408. It is understood that the material of the first gasket 2 may be other materials, and the material of the first gasket 2 may be selected according to actual situations.
In one embodiment, the thickness of the second gasket 5 is 4-6 mm. The material of the second gasket 5 is S30408. It is understood that the material of the second gasket 5 may be other materials, and the material of the second gasket 5 may be selected according to actual situations.
In one embodiment, the pressure washer is a washer having a cylindrical configuration. The pressure washer does not deform under the action of external force.
In one embodiment, the thickness of the third gasket 3 is 4-6 mm. The material of the third gasket 3 is S30408. It is understood that the material of the third gasket 3 may be other materials, and the material of the third gasket 3 may be selected according to actual situations.
In one embodiment, the inner diameter of the third washer 3 is the same as the inner diameter of the first washer 2 and the outer diameter of the third washer 3 is the same as the outer diameter of the first washer 2. It will be appreciated that in other embodiments the outer diameter of the third washer 3 may be different from the outer diameter of the first washer 2. The outer diameter of the third gasket is the same as that of the first gasket, so that the third gasket is convenient to manufacture, and the third gasket can be directly grooved to form the first gasket.
In one embodiment, referring to fig. 1, the fixing device further includes a transfer plate 7, the bottom of the transfer screw sleeve 4 is fixedly connected to the transfer plate 7, and the transfer plate 7 is fixedly connected to the structure to be fixed.
Referring to fig. 1, the cold box of an embodiment includes a cold box body, a heat exchanger 6 and a fixing device, the heat exchanger 6 is disposed in the cold box body, and the bottom of the cold box body is connected to the heat exchanger 6 through the fixing device.
The transfer plate 7 is fixedly connected with the heat exchanger 6. Specifically, the transfer plate 7 is fixedly connected with the heat exchanger 6, and one end of the transfer threaded sleeve 4 is fixedly connected with the transfer plate 7. Further, it is fixed with heat exchanger 6 that transport board 7 passes through the screw, transports the one end of swivel nut 4 and transports board 7 welded fastening, transports the other end of swivel nut 4 and passes through threaded connection with hexagon socket head cap screw and fix.
The flange 8 is fixedly connected with the bottom of the cold box.
Above-mentioned cold box, transport board 7 and transport swivel nut 4 carry out the boxing, it is fixed through bolt 1 with heat exchanger 6 to transport board 7 after welding, through hexagon socket head cap screw with the cross recess packing ring, the pressure packing ring, the plain washer is by compressing tightly to cold box bottom flange 8 from the top down in proper order, along with the increase of torque of hexagon socket head cap screw, the pressure packing ring exerts pressure to the pressurized deformation district 54 of cross recess packing ring, lead to the cross recess packing ring to take place to warp, in the locating hole 82 of deformation part embedding cold box bottom flange 8, the displacement of hexagon socket head cap screw has radially and axially been restricted, thereby the location and the fixing of the relative cold box of heat exchanger 6 have been accomplished.
Above-mentioned cold box, heat exchanger 6 and transportation board 7 fixed connection, when connecting bolt 1 and transportation swivel nut 4, bolt 1 transmits the packing force to third packing ring 3, and the packing force produces concentrated pressure through second packing ring 5, and concentrated pressure is used in the fluting scope of first packing ring 2, makes first packing ring 2 take place to warp and imbeds in the locating hole 82 of flange 8, can accomplish the location and the fixed of heat exchanger 6 for flange 8 with cold box fixed connection, need not to adjust mounted position and angle repeatedly, convenient operation, the installation is simple.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A fixing device is characterized by comprising a transfer threaded sleeve, a bolt, a first gasket, a second gasket, a third gasket and a flange;
one end of the transfer threaded sleeve is fixedly connected with the structure to be fixed;
the flange is provided with a positioning hole, the bolt penetrates through the positioning hole, the first gasket, the second gasket and the third gasket are sequentially arranged between the flange and a nut of the bolt, the first gasket is close to the flange, the third gasket is close to the nut, the inner circumference of the first gasket is provided with a groove, the second gasket is a pressure gasket, and the third gasket is a flat gasket;
one end of the bolt, which is far away from the nut, is connected with the transfer threaded sleeve through threads;
the inner circumference of the first gasket is provided with a cross-shaped groove;
the length of the groove is greater than the outer diameter of the second gasket;
the second gasket is a gasket with a cylindrical structure; the pressure washer does not deform under the action of external force.
2. The fixture of claim 1, wherein the bolt is a socket head cap screw.
3. The fastening device of claim 1, wherein the first washer has a thickness of 4-6 mm.
4. The fastening device of claim 1, wherein the second washer has a thickness of 4-6 mm.
5. The fastening device of claim 1, wherein the third washer has a thickness of 4-6 mm.
6. The fixation device of claim 1, wherein an inner diameter of the third washer is the same as an inner diameter of the first washer, and an outer diameter of the third washer is the same as an outer diameter of the first washer.
7. The fixation device of claim 1, further comprising a transfer plate, wherein one end of the transfer nut is fixedly connected to the transfer plate, and the transfer plate is fixedly connected to the structure to be fixed.
8. A cold box comprising a cold box body, a heat exchanger and a fixture as claimed in any one of claims 1 to 6;
the heat exchanger is arranged in the cold box body; one end of the transfer threaded sleeve is fixedly connected with the heat exchanger; the flange is fixedly connected with the bottom of the cold box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219569.6A CN111022848B (en) | 2019-12-03 | 2019-12-03 | Fixing device and cold box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219569.6A CN111022848B (en) | 2019-12-03 | 2019-12-03 | Fixing device and cold box |
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| Publication Number | Publication Date |
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| CN111022848A CN111022848A (en) | 2020-04-17 |
| CN111022848B true CN111022848B (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911219569.6A Active CN111022848B (en) | 2019-12-03 | 2019-12-03 | Fixing device and cold box |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013417A (en) * | 2022-05-26 | 2022-09-06 | 严永存 | A gasket and its preparation mold and process |
| CN115111836B (en) * | 2022-08-12 | 2023-09-08 | 北京中科富海低温科技有限公司 | A cold box for easy transportation |
| CN115303640B (en) * | 2022-08-12 | 2023-06-30 | 北京中科富海低温科技有限公司 | a limiting device |
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| CN111022848A (en) | 2020-04-17 |
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