Thin-wall sleeve inner hole conductive device

Abstract

The invention discloses a conductive device for an inner hole of a thin-wall sleeve. The conductive device comprises an annular process blocking plate, a gland flange assembly and a hanger assembly. The annular process blocking plate is detachably installed in the thin-wall sleeve and close to the upper end of the thin-wall sleeve, and the gland flange assembly covers the upper end face of the thin-wall sleeve and is detachably connected with the annular process blocking plate; the upper end of the hanger assembly is connected with the travelling crane, and the lower end of the hanger assembly is connected with the gland flange assembly. By adopting the detachable annular process blocking plate, the processes of welding and welding removal are removed, so that the annular process blocking plate is more convenient and quicker to disassemble and assemble, the production efficiency can be effectively improved, meanwhile, the detachable design also enables the disassembly and assembly of the annular process blocking plate not to influence the internal thread of the thin-wall sleeve, and the production efficiency is improved. Therefore, the process of finish turning of the internal threads does not need to be added after the annular process blocking plate is dismounted, the process is further shortened, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating, and in particular to a conductive device for the inner hole of a thin-walled sleeve. Background Art

[0002] In the field of multi-stage cylinders for engineering machinery, the existing inner cavity protection and conductive technology of sleeve electroplating has the following shortcomings: the sleeve multi-stage cylinder is mainly lightweight and the sleeve wall is thin. In conventional electroplating, in order to meet the power requirement, it is often carried out in the form of welding conductive process plugs, which not only increases the welding process, but also because the welded process plugs cannot be recycled, the rough turning process of removing the process plugs and the process of fine turning the inner thread of the sleeve are also added. These multiple processes added around the welding process plugs have seriously increased the manufacturing cost and seriously reduced the production efficiency.

[0003] In addition, welding process blockage can easily lead to pressure difference in the inner hole of the sleeve during the electroplating process, and the chromium mist floats up, causing partial rust on the inner hole of the sleeve. After removing the welding process blockage, the inner hole of the sleeve needs to be polished and rust-removed, which further increases the manufacturing cost. Summary of the invention

[0004] In view of this, the present invention provides a thin-walled sleeve inner hole conductive device, which can reduce the process steps, lower the manufacturing cost and improve the production efficiency.

[0005] To achieve the above object, the present invention provides the following technical solutions: A thin-wall sleeve inner hole conductive device comprises: an annular process plugging plate, a gland flange assembly and a hanger assembly.

[0006] Among them, the annular process plugging plate is detachably installed inside the thin-walled sleeve and close to the upper end of the thin-walled sleeve; the pressure cover flange assembly is covered on the upper end surface of the thin-walled sleeve and is detachably connected to the annular process plugging plate; the upper end of the hanger assembly is connected to the crane, and the lower end of the hanger assembly is connected to the pressure cover flange assembly.

[0007] Preferably, an external thread is provided on the outer periphery of the annular process plugging plate, and the external thread cooperates with the internal thread of the thin-walled sleeve so that the annular process plugging plate is screwed into the thin-walled sleeve.

[0008] Preferably, the gland flange assembly includes a gland flange body, on which a plurality of first bolt holes are spaced apart, and on the annular process plugging plate a plurality of second bolt holes correspondingly matched with the plurality of first bolt holes are arranged, and the bolts pass through the first bolt holes and the second bolt holes in sequence, and cooperate with nuts to fix the gland flange body to the annular process plugging plate.

[0009] Preferably, the gland flange assembly further comprises a transition flange copper sheet, wherein the transition flange copper sheet is arranged between the gland flange body and the annular process plugging plate, and a plurality of third bolt holes for the bolts to pass through are spaced apart on the transition flange copper sheet.

[0010] Preferably, ventilation holes are provided on the annular process plugging plate, the gland flange body and the transition flange copper sheet.

[0011] Preferably, the gland flange assembly comprises a flange mounting plate, wherein the flange mounting plate is vertically mounted on the gland flange body, and the hanger assembly comprises a hanger body, wherein the hanger body is bolted to the flange mounting plate.

[0012] Preferably, a rectangular groove is provided on one side of the flange mounting plate, and a rectangular protrusion is provided on the side of the hanger body facing the flange mounting plate, and the rectangular protrusion is plug-fitted with the rectangular groove.

[0013] Preferably, the hanger assembly further comprises a lifting hook, which is mounted on the upper end of the hanger body and cooperates with the crane for lifting.

[0014] Compared with the prior art, the present application discloses a conductive device for the inner hole of a thin-walled sleeve, which eliminates the welding and welding removal processes by adopting a detachable annular process plugging plate, making the disassembly and assembly of the annular process plugging plate more convenient and quick, and can effectively improve production efficiency. At the same time, the detachable design also ensures that the disassembly and assembly of the annular process plugging plate will not affect the internal thread of the thin-walled sleeve. Therefore, there is no need to add a fine turning process for the internal thread after removing the annular process plugging plate. This not only further shortens the process, but also reduces the manufacturing cost. At the same time, since the annular process plugging plate is detachable, the annular process plugging plate can be reused, further reducing the manufacturing cost.

[0015] 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

[0016] Figure 1 is a cross-sectional view of a thin-walled sleeve inner hole conductive device (first perspective) disclosed in an embodiment of the present application; Figure 2 It is a cross-sectional view of the thin-walled sleeve inner hole conductive device (second perspective) disclosed in the embodiment of the present application.

[0017] Reference numerals: 1. Annular process plugging plate; 11. Second bolt hole; 2. gland flange assembly; 21. gland flange body; 22. flange mounting plate; 23. transition flange copper sheet; 211. first bolt hole; 221. rectangular groove; 231. third bolt hole; 3. Hanger assembly; 31. Hanger body; 32. Lifting hook; 311. Rectangular protrusion; 4. Thin-walled sleeve. DETAILED DESCRIPTION

[0018] The invention discloses a thin-wall sleeve inner hole conductive device, which can reduce working procedures, lower manufacturing costs and improve production efficiency.

[0019] Embodiments of the present invention are described in detail below, examples of which 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] Reference below Figure 1 and Figure 2 The conductive device in the inner hole of a thin-walled sleeve in an embodiment of the present invention is described.

[0022] An embodiment of the present application discloses a thin-wall sleeve inner hole conductive device, comprising: an annular process plugging plate 1, a gland flange assembly 2 and a hanger assembly 3.

[0023] Among them, the annular process plugging plate 1 is detachably installed inside the thin-walled sleeve 4 and close to the upper end of the thin-walled sleeve 4; the pressure cover flange assembly 2 is covered on the upper end surface of the thin-walled sleeve 4 and is detachably connected to the annular process plugging plate 1; the upper end of the hanger assembly 3 is connected to the crane, and the lower end of the hanger assembly 3 is connected to the pressure cover flange assembly 2.

[0024] In the prior art, when the inner hole of the thin-walled sleeve 4 is electroplated, a welding process plug is often used for conduction to meet the power demand in the electroplating. Although this method can provide sufficient power, since the process plug itself is welded on the thin-walled sleeve 4, it needs to be removed after the electroplating is completed. After the removal, the internal thread of the thin-walled sleeve 4 needs to be fine-turned to reduce the impact of the welding process plug and the removal of the process plug on the internal thread, which significantly increases the process and manufacturing costs and seriously reduces work efficiency.

[0025] In this embodiment, by adopting a detachable annular process plugging plate 1, the welding and welding removal processes are eliminated, making the disassembly and assembly of the annular process plugging plate 1 more convenient and quick, and can effectively improve the production efficiency. At the same time, the detachable design also makes the disassembly and assembly of the annular process plugging plate 1 not affect the internal thread of the thin-walled sleeve 4. Therefore, there is no need to add a fine turning process of the internal thread after removing the annular process plugging plate 1. This not only further shortens the process, but also reduces the manufacturing cost. At the same time, since the annular process plugging plate 1 is detachable, the annular process plugging plate 1 can be reused, further reducing the manufacturing cost.

[0026] Furthermore, the pressure cover flange assembly 2 is one of the conductive components, and its cover is arranged on the upper end face of the thin-walled sleeve 4, and is detachably connected to the annular process plug 1. When the electroplating is energized, on the one hand, the current can be input through the upper end face of the thin-walled sleeve 4, and on the other hand, the current can also be input through the inner hole wall of the thin-walled sleeve 4, thus realizing two-way power input, which can not only meet the power demand in the electroplating process, but also effectively ensure the stability of the current, and effectively avoid the electric shock defect of the thin-walled sleeve 4 during the electroplating process.

[0027] In addition, the arrangement of the hanger assembly 3 can ensure the hoisting stability of the thin-walled sleeve 4 and effectively prevent the thin-walled sleeve 4 from falling.

[0028] In some embodiments, an outer circumference of the annular process plugging plate 1 is provided with an external thread, which cooperates with the internal thread of the thin-walled sleeve 4, so that the annular process plugging plate 1 is screwed into the thin-walled sleeve 4. The annular process plugging plate 1 is screwed into the thin-walled sleeve 4 through the cooperation of the external thread and the internal thread. After the electroplating is completed, the annular process plugging plate 1 only needs to be screwed out of the thin-walled sleeve 4, which is convenient and quick, and can effectively improve the production efficiency. At the same time, the screw connection method can also ensure the installation stability of the annular process plugging plate 1.

[0029] In some embodiments, the gland flange assembly 2 includes a gland flange body 21, on which a plurality of first bolt holes 211 are spaced apart, and on the annular process plugging plate 1 a plurality of second bolt holes 11 correspondingly arranged to cooperate with the plurality of first bolt holes 211 are disposed, and the bolts pass through the first bolt holes 211 and the second bolt holes 11 in sequence, and cooperate with nuts to fix the gland flange body 21 to the annular process plugging plate 1.

[0030] For example Figure 1 As shown, the gland flange body 21 is connected to the annular process plug 1 by bolts. This connection method is not only more convenient and quick to disassemble and assemble, but also can ensure sufficient connection strength.

[0031] In some embodiments, the gland flange assembly 2 further includes a transition flange copper sheet 23, which is disposed between the gland flange body 21 and the annular process plug 1, and a plurality of third bolt holes 231 for bolts to pass through are disposed at intervals on the transition flange copper sheet 23. The provision of the transition flange copper sheet 23 can effectively improve the conductivity, thereby meeting the power demand during the electroplating process and ensuring the stability of the input current.

[0032] In some embodiments, ventilation holes are provided on the annular process plugging plate 1, the gland flange body 21 and the transition flange copper sheet 23. In the prior art, the welding process plugging is also prone to cause a pressure difference between the inside and outside of the thin-walled sleeve 4, so that the chrome mist floats up and causes the inner hole of the sleeve to partially rust. Therefore, after the electroplating is completed, the inner hole of the thin-walled sleeve 4 needs to be derusted, which adds a grinding and derusting process, further increases the manufacturing cost and reduces the production efficiency; in this embodiment, ventilation holes are provided on the annular process plugging plate 1, the gland flange body 21 and the transition flange copper sheet 23, so that the inner hole of the thin-walled sleeve 4 is connected to the outside, so that the pressure difference between the inside and the outside can be avoided, thereby avoiding the occurrence of rust on the inner hole, which not only shortens the process, improves production efficiency, but also reduces manufacturing costs.

[0033] In some embodiments, the gland flange assembly 2 includes a flange mounting plate 22, which is vertically mounted on the gland flange body 21. The hanger assembly 3 includes a hanger body 31, which is bolted to the flange mounting plate 22. The bolted connection facilitates the installation and disassembly of the flange mounting plate 22 and the hanger body 31, and can further improve production efficiency.

[0034] Furthermore, a rectangular groove 221 is provided on one side of the flange mounting plate 22, and a rectangular protrusion 311 is provided on the side of the hanger body 31 facing the flange mounting plate 22, and the rectangular protrusion 311 is plugged and matched with the rectangular groove 221. Figure 1 As shown, the arrangement of the rectangular groove 221 and the rectangular protrusion 311 enables the flange mounting plate 22 and the hanger body 31 to be quickly positioned and assembled, thereby further shortening the assembly time of the flange mounting plate 22 and the hanger body 31 .

[0035] In some embodiments, for example Figure 2 As shown, the hanger assembly 3 further includes a hoisting hook 32 , which is mounted on the upper end of the hanger body 31 , and the hoisting hook 32 cooperates with the crane hoisting.

[0036] Other structures and operations of the thin-walled sleeve inner hole conductive device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A thin-walled sleeve inner hole conductive device, characterized in that: include: Annular process plug, gland flange assembly and hanger assembly; The annular process plugging plate is detachably mounted inside the thin-walled sleeve and close to the upper end of the thin-walled sleeve. The gland flange assembly is disposed on the upper end surface of the thin-walled sleeve and is detachably connected to the annular process plugging plate. The upper end of the hanger assembly is connected to the crane, and the lower end of the hanger assembly is connected to the gland flange assembly.

2. The thin-walled sleeve inner hole conductive device according to claim 1, characterized in that: An external thread is arranged on the outer periphery of the annular process plugging plate, and the external thread matches with the internal thread of the thin-walled sleeve so that the annular process plugging plate is screwed into the thin-walled sleeve.

3. The thin-walled sleeve inner hole conductive device according to claim 2, characterized in that: The gland flange assembly includes a gland flange body, on which a plurality of first bolt holes are spaced apart, and on the annular process plugging plate a plurality of second bolt holes correspondingly matched with the plurality of first bolt holes are arranged, and bolts pass through the first bolt holes and the second bolt holes in sequence, and cooperate with nuts to fix the gland flange body to the annular process plugging plate.

4. The thin-walled sleeve inner hole conductive device according to claim 3, characterized in that: The gland flange assembly also includes a transition flange copper sheet, which is arranged between the gland flange body and the annular process plugging plate, and the transition flange copper sheet is provided with a plurality of third bolt holes for the bolts to pass through at intervals.

5. The thin-walled sleeve inner hole conductive device according to claim 4, characterized in that: The annular process plugging plate, the gland flange body and the transition flange copper sheet are all provided with ventilation holes.

6. The thin-walled sleeve inner hole conductive device according to claim 3, characterized in that: The gland flange assembly comprises a flange mounting plate, and the flange mounting plate is vertically mounted on the gland flange body. The hanger assembly comprises a hanger body, and the hanger body is bolted to the flange mounting plate.

7. The thin-walled sleeve inner hole conductive device according to claim 6, characterized in that: A rectangular groove is arranged on one side of the flange mounting plate, and a rectangular protrusion is arranged on the side of the hanger body facing the flange mounting plate, and the rectangular protrusion is plug-fitted with the rectangular groove.

8. The thin-walled sleeve inner hole conductive device according to claim 6, characterized in that: The hanger assembly also includes a lifting hook, which is installed on the upper end of the hanger body and cooperates with the crane for lifting.

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