CN206570418U - The frock electroplated simultaneously for hydraulic jack surfaces externally and internally - Google Patents
The frock electroplated simultaneously for hydraulic jack surfaces externally and internally Download PDFInfo
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- CN206570418U CN206570418U CN201720222624.7U CN201720222624U CN206570418U CN 206570418 U CN206570418 U CN 206570418U CN 201720222624 U CN201720222624 U CN 201720222624U CN 206570418 U CN206570418 U CN 206570418U
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- hydraulic jack
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- external screw
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Abstract
The utility model discloses a kind of frock electroplated simultaneously for hydraulic jack surfaces externally and internally, including negative electrode connection unit and auxiliary anode unit；Negative electrode connection unit includes external screw thread ring set, and the upper surface of external screw thread ring set is welded with carrier, and carrier top is welded with suspension hook positioned at external screw thread ring set position of center line, and carrier is connected by insulating element with auxiliary anode unit；Auxiliary anode unit along the down-set conductive pole of external screw thread ring set center line and the insulation sleeve for being welded on the bolt of the conductive pole lower surface vertically downward and being threaded on bolt by constituting.The utility model advantage is to use the processing for reducing hydraulic jack after the frock, transhipment frequent, once upper electroplating assembly line can complete to carry out electroplating copper tin alloy to hydraulic jack, hydraulic jack electroplating efficiency and transport efficacy more than 50% are improved, production cost declines about 30%.Meanwhile, the deficiency of signal bronze plating can not be carried out by solving hydraulic jack bottom valve hole.
Description
Technical field
The utility model is related to mining hydraulic oil cylinder, is especially for hydraulic jack surfaces externally and internally while the work electroplated
Dress.
Background technology
Cu-sn alloy coating possesses good corrosion resistance, obtains wide in coal-mine hydraulic support column and jack at present
General application, particularly in the Minepit environments such as hot and humid, high chloride ion, high sulfate ion, the superiority that it possesses is more
It is prominent.
For hydraulic support column oil cylinder, wherein cylinder body inner and outer surfaces can using bronze (copper-tin alloy) electroplating bottoming set hard chrome process
Improve the service life of cylinder body in its corrosion resistance, extension.Cylinder body electroplating technology is in traditional hydraulic support column：In middle cylinder body
Hole finishing, cylindrical roughingHole plating copper tin alloy in middle cylinder bodyCylinder body cylinder bottom in weldingCylinder body in finishing
It is cylindricalMiddle cylinder justifies bronze (copper-tin alloy) electroplating in vitro.Due to electroplate use frock limitation, can only in welding cylinder body cylinder bottom it
It is preceding first to carry out endoporus electroplating copper tin alloy, cylinder body cylinder bottom in then welding, then finish middle cylinder and justify in vitro, last centralizing cylinder is external
Circle carries out electroplating copper tin alloy.It is above-mentioned to be to the deficiency that cylinder body electroplating technology in hydraulic support column is present：1st, workpiece transhipment frequency
It is numerous, low production efficiency；2nd, upper electroplating assembly line twice is needed, the electroplating work procedure cost time is longer, and electroplating efficiency is low；3rd, middle cylinder body
The bottom valve bore dia of cylinder bottom is smaller, it is impossible to carry out signal bronze plating, and corrosion phenomena occurs in bottom valve hole during causing use, contracting
Short product life.
The content of the invention
The utility model purpose is a kind of frock electroplated simultaneously for hydraulic jack surfaces externally and internally of offer, solves liquid
Compressing cylinder bottom valve hole can not carry out the deficiency of signal bronze plating.
To achieve the above object, the utility model takes following technical proposals：
The frock described in the utility model electroplated simultaneously for hydraulic jack surfaces externally and internally, including negative electrode connection unit and auxiliary
Supporing yang pole unit；The negative electrode connection unit includes external screw thread ring set, and the upper surface of the external screw thread ring set is welded with carrier,
The carrier top is welded with suspension hook positioned at external screw thread ring set position of center line, and carrier passes through insulating element and the auxiliary
Anode unit is connected；The auxiliary anode unit from along the down-set conductive pole of external screw thread ring set center line and it is vertical to
Under be welded on the bolt of the conductive pole lower surface and the insulation sleeve that is threaded on the bolt is constituted.
The carrier is character "door" form structure.
Multiple pod apertures are offered vertically on the side wall of the insulation sleeve.
The insulating element is made up of cleat insulator, by alignment pin with being welded on carrier at the top of the cleat insulator
Connecting plate fix, cleat insulator bottom is fixed by alignment pin with being welded on the connecting plate of the conductive pole upper surface.
The utility model advantage be to use the hydraulic jack electroplating copper tin alloy technological process after the frock for：Inner hole refined
Processing, cylindrical roughingWeld cylinder bottomFinishing is cylindricalInside and outside circle is while electroplating copper tin alloy.Therefore, reduce
Processing, the transhipment of hydraulic jack are frequent, and once upper electroplating assembly line can complete to carry out electroplating copper tin alloy to hydraulic jack, carry
High hydraulic jack electroplating efficiency and transport efficacy more than 50%, production cost decline about 30%.Meanwhile, solve hydraulic jack bottom
Valve opening can not carry out the deficiency of signal bronze plating, extend life of product.
Brief description of the drawings
Fig. 1 is the structural representation of electroplating tooling described in the utility model.
Fig. 2 is Fig. 1 left view structural representation（Conceal a font carrier armstand）.
Fig. 3 is the dimensional structure diagram of electroplating tooling described in the utility model.
Fig. 4 is the structural representation of cylinder body of hydraulic oil cylinder described in the utility model.
Fig. 5 is the structural representation that cylinder body of hydraulic oil cylinder described in the utility model is arranged on the electroplating tooling.
Embodiment
As Figure 1-5, the frock described in the utility model electroplated simultaneously for hydraulic jack inner and outer circumferential surfaces, including negative electrode
Connection unit and auxiliary anode unit；The negative electrode connection unit includes external screw thread ring set 1, and the upper surface of external screw thread ring set 1 is welded
A font carrier is connected to, two armstands 2.1,2.2 of door font carrier are mutually welded with external screw thread ring set 1, door font carrier
The middle part of crossbeam 3 be located at the position of center line of external screw thread ring set 1 and be welded with suspension hook 4 and connecting plate 5, door font carrier passes through exhausted
Edge part is connected with the auxiliary anode unit；Auxiliary anode unit along the center line of external screw thread ring set 1 is down-set by leading
Electric post 6 and the structure of insulation sleeve 8 for being welded on the bolt 7 of the lower surface of conductive pole 6 vertically downward and being threaded on bolt 7
Into.Insulating element is made up of cleat insulator 9.1,9.2, and the top of cleat insulator 9.1,9.2 is by alignment pin and is welded on a font
Connecting plate 5 on carrier crossbeam 3 is gripped, and cleat insulator 9.1,9.2 bottoms are by alignment pin with being welded on conductive pole 6
The connecting plate 10 of end face is gripped.In order that in electroplating process the diffusion of the inside and outside portion's electrodeposit solution of cylinder body of hydraulic oil cylinder 11 and
Circulation, makes electrodeposit solution in electroplating bath reach stabilization in the inside and outside concentration of cylinder body 11, so as to ensure the inside and outside thickness of coating of cylinder body 11
Uniformity, offer multiple pod apertures 12 vertically on the side wall of insulation sleeve 8.
The application method of electroplating tooling described in the utility model is：The conductive pole 6 is put into the hydraulic jack first
Cylinder body 11 in, the bolt 7 of the lower surface of conductive pole 6 is passed outside cylinder bottom from the cylinder bottom valve opening 13 of hydraulic jack, then will
The external screw thread ring set 1 is connected with the intraoral screw thread of the cylinder of hydraulic jack 14, and the insulation sleeve 8 is connected to cylinder body on bolt 7
11 are dielectrically separated from conductive pole 6, and finally the suspension hook 4 is suspended on the cathode bar of electroplating bath, cylinder body of hydraulic oil cylinder 11 is put
In in electroplating bath, conductive pole 6 is connected with anode of electrolytic cell by wire.
The outer round surface of cylinder body 11 of the hydraulic jack is accumulated and the surface area ratio of electroplating bath both sides positive plate is：1:1.5
~2；Relation between the diameter d and the diameter of bore D of cylinder body 11 of conductive pole 6 is：0.33D ＜ d ＜ 0.5D, to ensure in cylinder body 11
Hole coating is uniform.
Electroplating copper tin alloy electroplate liquid formulation：
Cuprous cyanide：25-30 g/l；Sodium stannate：11-25 g/l；Cymag：16-30 g/l；
Sodium hydroxide：6-14 g/l.
The process conditions used for：Ampere/square decimeter of current density 3, signal bronze bath temperature is 50-60 DEG C.
Claims (4)
1. a kind of frock electroplated simultaneously for hydraulic jack surfaces externally and internally, including negative electrode connection unit and auxiliary anode unit；
It is characterized in that：The negative electrode connection unit includes external screw thread ring set, and the upper surface of the external screw thread ring set is welded with carrier,
The carrier top is welded with suspension hook positioned at external screw thread ring set position of center line, and carrier passes through insulating element and the auxiliary
Anode unit is connected；The auxiliary anode unit from along the down-set conductive pole of external screw thread ring set center line and it is vertical to
Under be welded on the bolt of the conductive pole lower surface and the insulation sleeve that is threaded on the bolt is constituted.
2. it is used for the frock that hydraulic jack surfaces externally and internally is electroplated simultaneously according to claim 1, it is characterised in that：The carrying
Frame is character "door" form structure.
3. the frock according to claim 1 or claim 2 electroplated simultaneously for hydraulic jack surfaces externally and internally, it is characterised in that：It is described
Multiple pod apertures are offered vertically on the side wall of insulation sleeve.
4. the frock according to claim 1 or claim 2 electroplated simultaneously for hydraulic jack surfaces externally and internally, it is characterised in that：It is described
Insulating element is made up of cleat insulator, is consolidated at the top of the cleat insulator by alignment pin and the connecting plate being welded on carrier
Fixed, cleat insulator bottom is fixed by alignment pin with being welded on the connecting plate of the conductive pole upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222624.7U CN206570418U (en) | 2017-03-08 | 2017-03-08 | The frock electroplated simultaneously for hydraulic jack surfaces externally and internally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720222624.7U CN206570418U (en) | 2017-03-08 | 2017-03-08 | The frock electroplated simultaneously for hydraulic jack surfaces externally and internally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206570418U true CN206570418U (en) | 2017-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720222624.7U Active CN206570418U (en) | 2017-03-08 | 2017-03-08 | The frock electroplated simultaneously for hydraulic jack surfaces externally and internally |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022787A (en) * | 2017-03-08 | 2017-08-08 | 郑州煤矿机械集团股份有限公司 | Frock and application method that hydraulic jack surfaces externally and internally is electroplated simultaneously |
| CN112342599A (en) * | 2020-12-01 | 2021-02-09 | 中航飞机起落架有限责任公司 | Electroplating processing device for inner hole and end face of workpiece |
-
2017
- 2017-03-08 CN CN201720222624.7U patent/CN206570418U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022787A (en) * | 2017-03-08 | 2017-08-08 | 郑州煤矿机械集团股份有限公司 | Frock and application method that hydraulic jack surfaces externally and internally is electroplated simultaneously |
| CN107022787B (en) * | 2017-03-08 | 2019-06-14 | 郑州煤矿机械集团股份有限公司 | The tooling and application method that hydraulic cylinder surfaces externally and internally is electroplated simultaneously |
| CN112342599A (en) * | 2020-12-01 | 2021-02-09 | 中航飞机起落架有限责任公司 | Electroplating processing device for inner hole and end face of workpiece |
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