Hydraulic cylinder piston surface micro-arc oxidation treatment device

Abstract

The utility model relates to the field of surface micro-arc oxidation treatment devices, in particular to a hydraulic cylinder piston surface micro-arc oxidation treatment device which comprises a cylinder body, a cavity is formed in the cylinder body, electrolyte is contained in the cavity, a plurality of first sliding grooves are formed in one side in the cylinder body, and lead screw nuts a are installed in the first sliding grooves in a sliding mode. A supporting arm is fixedly installed at one end of the lead screw nut a, and a second sliding groove is formed in the lower surface of the supporting arm. According to the hydraulic cylinder piston surface micro-arc oxidation treatment device, a limiting block b is arranged, the limiting block b is of an arc-shaped structure and used for clamping a piston rod, a limiting block c and a limiting block d are arranged on the arc-shaped side wall of the limiting block b and used for limiting and fixing the piston, and when the limiting block c fixes the piston rod with only one limiting groove b, the limiting block b is clamped by the limiting block c and the limiting block d; the limiting block c is movably contained in the arc-shaped side wall of the limiting block b, and the limiting block d is installed on the arc-shaped side wall of the limiting block b in a sliding mode and used for adjusting the distance between the limiting block c and the limiting block d.

Description

Technical Field

[0001] The utility model relates to the field of micro-arc oxidation treatment devices, in particular to a micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston. Background Art

[0002] Micro-arc oxidation (MAO) is a method of applying micro-arc oxidation technology to piston surfaces, primarily used to improve the piston's wear resistance, heat resistance, and corrosion resistance. MAO, also known as plasma electrolytic oxidation, uses a combination of an electrolyte and appropriate electrical parameters to generate a plasma discharge at instantaneous high temperature and high pressure, creating an in-situ ceramic film composed primarily of a base metal oxide. Some piston rods feature annular grooves on the sidewall facing away from the piston to store lubricant, improve sealing performance, disperse heat, and reduce wear.

[0003] During micro-arc oxidation treatment of the piston surface, there is a problem of insufficient reaction between the piston and ions in the electrolyte. In view of this, a micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston is provided. Utility Model Content

[0004] The main purpose of the utility model is to provide a hydraulic cylinder piston surface micro-arc oxidation treatment device to solve the problem of insufficient reaction between the piston and the ions in the electrolyte during micro-arc oxidation treatment of the piston surface proposed in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston is provided, comprising a cylinder body, a cavity is provided in the cylinder body, an electrolyte is filled in the cavity, a number of No. 1 sliding grooves are provided on one side of the cylinder body, a screw nut a is slidably installed in the No. 1 sliding groove, one end of the screw nut a is fixedly installed with a support arm, a No. 2 sliding groove is provided on the lower surface of the support arm, a screw nut b is slidably installed in the No. 2 sliding groove, one end of the screw nut b is fixedly installed with a connecting arm, and the other end of the connecting arm is fixedly installed with a mounting block; the mounting block comprises two symmetrically arranged limit blocks b, and the limit block b is an arc-shaped structure, the arc-shaped side wall of the limit block b is provided with a limit block c and a limit block d for limiting and fixing the piston rod, wherein the limit block c is movably received in the arc-shaped side wall of the limit block b, and the limit block d is slidably installed on the arc-shaped side wall of the limit block b for adjusting the distance between the limit block c and the limit block d.

[0006] Furthermore, a screw rod No. 1 is rotatably installed in the No. 1 sliding groove, and the screw rod nut a is a T-shaped structure, which is adapted to the No. 1 sliding groove. The screw rod nut a is a T-shaped structure that is slidably connected to the No. 1 sliding groove, and the screw rod nut a is threadedly matched with the No. 1 screw rod.

[0007] Furthermore, a No. 2 screw rod is rotatably installed in the No. 2 sliding groove, the screw rod nut b is threadably matched with the No. 2 screw rod, and the screw rod nut b is a T-shaped structure adapted to the No. 2 sliding groove.

[0008] Furthermore, a water pump is fixedly installed on the side wall of the cylinder near the bottom edge, the input end of the water pump is connected to the cavity through a water pipe, and the output end of the water pump is connected to the top of the cavity through a water pipe. The water pump is used to transport the liquid at the bottom of the cavity back into the cavity, and a filter is fixedly installed on the water pipe near the upper end of the pipe.

[0009] Furthermore, a stirring rod is fixedly installed under the mounting block, and a number of No. 3 sliding grooves are opened through the side wall of the stirring rod. A No. 3 screw rod is rotatably installed in the No. 3 sliding groove, and a screw nut c is slidably installed in the No. 3 sliding groove, and the screw nut c cooperates with the No. 3 screw rod thread.

[0010] Furthermore, a No. 4 sliding groove is opened on one side of the mounting block, and a No. 4 screw rod is rotatably installed in the No. 4 sliding groove. The two limit blocks b are symmetrically arranged in the No. 4 sliding groove, and a screw rod nut d is fixedly arranged on one side of the limit block b, and the screw rod nut d cooperates with the No. 4 screw rod thread.

[0011] Furthermore, a contraction groove is provided on the arc-shaped side wall of the limit block b, a spring is fixedly installed in the contraction groove, a limit block c is fixedly installed on the other end of the spring, a No. 5 sliding groove is provided directly below the contraction groove, a No. 5 screw is rotatably installed in the No. 5 sliding groove, and the limit block d is slidably set in the No. 5 sliding groove, a screw nut e is fixedly installed on the side wall of the limit block d, wherein the screw nut e is threadedly matched with the No. 5 screw, and the limit block c and the limit block d are both arc-shaped structures.

[0012] Furthermore, a limiting groove a is opened in the No. 3 sliding groove, and limiting protrusions a that are adapted to the limiting groove a are fixedly installed on both side walls of the screw nut c. The screw nut c is slidably engaged in the No. 3 sliding groove through the limiting protrusion a, and stirring plates are fixed on both sides of the screw nut c.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The hydraulic cylinder piston surface micro-arc oxidation treatment device, the limiting block b is arranged, the limiting block b is of arc structure, the limiting block b is used for clamping the piston rod, the limiting block c and the limiting block d are arranged on the arc side wall of the limiting block b, and the limiting block c is used for limiting and fixing the piston, the limiting block d is slidably installed on the arc side wall of the limiting block b, the spacing between the limiting block c and the limiting block d is adjusted when the piston rod with a plurality of limiting grooves b is fixed, different piston rods are fixed, and therefore the stability of fixation is improved, the piston rod is fixedly installed on one side of the piston, the piston is controlled to move in the electrolyte by sliding the screw nut a and the screw nut b, and the piston and ions in the electrolyte are fully reacted.

[0015] 2. The hydraulic cylinder piston surface micro-arc oxidation treatment device, the stirring rod is arranged, a plurality of third sliding grooves are formed in the side wall of the stirring rod, the screw nut c in the third sliding groove is used for driving the stirring plate to slide back and forth, the electrolyte is stirred by the stirring plate, ions in the liquid are fully reacted with the piston, the water pipe is fixedly installed on one side of the cylinder body and communicates with the cavity, the filter screen is fixedly installed on the water pipe close to the upper end pipe, the electrolyte at the bottom is filtered by the filter screen and then input into the cavity, part of impurities in the electrolyte are removed, and the impurities are prevented from affecting the micro-arc oxidation of the piston. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole schematic view of the hydraulic cylinder piston surface micro-arc oxidation treatment device in the preferred embodiment of the utility model;

[0017] Figure 2 It is a sectional view structural schematic view of the cylinder body in the preferred embodiment of the utility model;

[0018] Figure 3 It is a sectional view structural schematic view of the stirring rod in the preferred embodiment of the utility model;

[0019] Figure 4 It is a sectional view structural schematic view of the first sliding groove in the preferred embodiment of the utility model;

[0020] Figure 5 It is a sectional view structural schematic view of the second sliding groove in the preferred embodiment of the utility model;

[0021] Figure 6 It is a sectional view structural schematic view of the screw nut c in the preferred embodiment of the utility model;

[0022] Figure 7 It is a structural schematic view of A in the preferred embodiment of the utility model;

[0023] Figure 8 It is a sectional view structural schematic view of the limiting block b in the preferred embodiment of the utility model.

[0024] Illustration:

[0025] 1. Cylinder body;

[0026] 2. Sliding groove No. 1; 21. Screw rod No. 1; 22. Support arm; 23. Screw nut b; 24. Mounting block; 25. Piston rod; 26. Piston; 27. Stirring rod; 28. Screw nut c; 29. ​​Connecting arm; 211. Screw nut a; 221. Sliding groove No. 2; 222. Screw rod No. 2; 241. Sliding groove No. 4; 242. Limit block b; 243. Screw nut d; 244. Limiting groove b; 245. Screw rod No. 4; 246. Contraction groove; 247. Spring; 248. Sliding groove No. 5; 249. Screw rod No. 5; 251. Limiting block c; 252. Screw nut e; 253. Limiting block d; 271. Sliding groove No. 3; 272. Screw rod No. 3; 273. Limiting groove a; 281. Limiting protrusion a; 282. Stirring plate.

[0027] 3. Water pipe; 31. Filter; 32. Water pump. DETAILED DESCRIPTION

[0028] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0029] See also Figures 1-8 As shown, the purpose of this embodiment is to provide a micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston, including a cylinder body 1, a cavity is opened in the cylinder body 1, the cavity is filled with electrolyte, a plurality of No. 1 sliding grooves 2 are opened on one side of the cylinder body 1, a screw nut a211 is slidably installed in the No. 1 sliding groove 2, and a support arm 22 is fixedly installed at one end of the screw nut a211, and a No. 2 sliding groove 221 is opened on the lower surface of the support arm 22, a screw nut b23 is slidably installed in the No. 2 sliding groove 221, and a connecting arm 29 is fixedly installed at one end of the screw nut b23. , the other end of the connecting arm 29 is fixedly installed with a mounting block 24; the mounting block 24 includes two symmetrically arranged limit blocks b242, and the limit block b242 is an arc-shaped structure, and the arc-shaped side wall of the limit block b242 is provided with a limit block c251 and a limit block d253 for limiting and fixing the piston rod 25, wherein the limit block c251 is movably received in the arc-shaped side wall of the limit block b242, and the limit block d253 is slidably installed on the arc-shaped side wall of the limit block b242 for adjusting the distance between the limit block c251 and the limit block d253.

[0030] A screw rod 21 is rotatably installed in the No. 1 sliding groove 2. The screw nut a211 is a T-shaped structure, which is adapted to the No. 1 sliding groove 2. The screw nut a211 is a T-shaped structure that is slidably clamped in the No. 1 sliding groove 2, and the screw nut a211 is threadedly engaged with the No. 1 screw rod 21. One end of the No. 1 screw rod 21 is connected to the No. 1 motor, and the No. 1 screw rod 21 is driven to rotate by the No. 1 motor, thereby controlling the screw nut a211 to slide along the No. 1 sliding groove 2.

[0031] A No. 2 screw rod 222 is rotatably installed in the No. 2 sliding groove 221, and the screw nut b23 is threadedly engaged with the No. 2 screw rod 222, and the screw nut b23 is a T-shaped structure adapted to the No. 2 sliding groove 221. One end of the No. 2 screw rod 222 is connected to the No. 2 motor, and the No. 2 screw rod 222 is driven to rotate by the No. 2 motor, thereby controlling the screw nut b23 to slide along the No. 2 sliding groove 221.

[0032] A water pump 32 is fixedly installed on the side wall of the cylinder body 1 near the bottom edge. The input end of the water pump 32 is connected to the cavity through the water pipe 3, and the output end of the water pump 32 is connected to the top of the cavity through the water pipe 3. The water pump 32 is used to transport the liquid at the bottom of the cavity back into the cavity, and a filter screen 31 is fixedly installed near the upper end of the water pipe 3 to remove impurities in the electrolyte to prevent the impurities from affecting the full reaction between the piston 26 and the ions in the electrolyte.

[0033] A stirring rod 27 is fixedly installed under the mounting block 24, and a number of No. 3 sliding grooves 271 are opened through the side wall of the stirring rod 27. No. 3 screw rods 272 are rotatably installed in the No. 3 sliding grooves 271, and screw nuts C28 are slidably installed in the No. 3 sliding grooves 271. The screw nuts C28 are threadedly matched with the No. 3 screw rods 272.

[0034] A No. 4 sliding groove 241 is provided on one side of the mounting block 24, and a No. 4 screw rod 245 is rotatably installed in the No. 4 sliding groove 241. Two limit blocks b242 are symmetrically arranged in the No. 4 sliding groove 241, and a screw nut d243 is fixedly provided on one side of the limit block b242. The screw nut d243 is threadedly matched with the No. 4 screw rod 245. By sliding the two limit blocks b242, piston rods 25 of different sizes are fixed.

[0035] The arc-shaped side wall of the limit block b242 is provided with a contraction groove 246, in which a spring 247 is fixedly installed, and the other end of the spring 247 is fixedly installed with a limit block c251, and a No. 5 sliding groove 248 is provided just below the contraction groove 246, in which a No. 5 screw rod 249 is rotatably installed, and the limit block d253 is slidably set in the No. 5 sliding groove 248, and a screw nut e252 is fixedly installed on the side wall of the limit block d253, wherein the screw nut e252 is threadedly matched with the No. 5 screw rod 249, and the The limit block c251 and the limit block d253 are both arc-shaped structures. One end of the No. 5 screw rod 249 extends out of the limit block b242 and is exposed on the outside. The piston rod 25 has a limit groove b244 at the end away from the piston 26. The limit grooves b244 of different piston rods 25 are different. When the piston rod 25 has only one limit groove b244, the limit block c251 shrinks into the shrinkage groove 246. When the piston rod 25 has multiple limit grooves b244, the position of the limit block d253 is adjusted by rotating the No. 5 screw rod 249 to improve the stability of the clamping.

[0036] A limiting groove a273 is provided in the No. 3 sliding groove 271, and limiting protrusions a281 that are compatible with the limiting groove a273 are fixedly installed on the side walls of the screw nut c28. The screw nut c28 is slidably engaged in the No. 3 sliding groove 271 through the limiting protrusions a281. Stirring plates 282 are fixed on both sides of the screw nut c28. The No. 3 screw 272 is a multi-section reciprocating screw, and each section of the reciprocating screw is rotatably installed in the No. 3 sliding groove 271. One end of the No. 3 screw 272 is connected to the No. 3 motor, and the No. 3 motor drives the No. 3 screw 272 to rotate, thereby controlling the screw nut c28 to slide back and forth along the No. 3 sliding groove 271, driving the stirring plate 282 to move, and stirring the electrolyte.

[0037] In the specific use of the present invention, when the surface of the hydraulic cylinder piston is micro-arc oxidized, the No. 1 motor drives the No. 1 screw rod 21 to make the screw nut a211 slide along the No. 1 sliding groove 2, and then the No. 2 motor drives the No. 2 screw rod 222 to make the screw nut b23 slide along the No. 2 sliding groove 221. The mounting block 24 includes two symmetrically arranged limit blocks b242. The piston rods 25 of different sizes are fixed by sliding the limit blocks b242. When the piston rod 25 has only one limit groove b244, the limit block c251 is retracted into the retraction groove 246. The piston rod 25 has multiple limit When the groove b244 is formed, the fifth screw 249 is rotated to adjust the position of the limit block d253 to correspond to the position of the limit groove b244 to improve the stability of the clamping, and the piston 26 is placed in the electrolyte and slides in the electrolyte so that the surface of the piston 26 fully reacts with the ions in the electrolyte, and then the third screw 272 in the stirring rod 27 is used to control the sliding of the screw nut c28 to stir the electrolyte so that the ions in the electrolyte fully react with the piston 26. The water pipe 3 filters the electrolyte at the bottom through the filter 31 and then inputs it into the cavity again to prevent impurities in the electrolyte from affecting the full reaction of the piston 26 with the electrolyte.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston, comprising a cylinder body (1), wherein a cavity is provided in the cylinder body (1), and an electrolyte is contained in the cavity, wherein: A plurality of No. 1 sliding grooves (2) are provided on one side of the cylinder body (1), a screw nut a (211) is slidably mounted in the No. 1 sliding groove (2), a support arm (22) is fixedly mounted on one end of the screw nut a (211), a No. 2 sliding groove (221) is provided on the lower surface of the support arm (22), a screw nut b (23) is slidably mounted in the No. 2 sliding groove (221), a connecting arm (29) is fixedly mounted on one end of the screw nut b (23), and a mounting block (24) is fixedly mounted on the other end of the connecting arm (29); The mounting block (24) comprises two symmetrically arranged limit blocks b (242), and the limit block b (242) is an arc-shaped structure. The arc-shaped side wall of the limit block b (242) is provided with a limit block c (251) and a limit block d (253) for limiting and fixing the piston rod (25), wherein the limit block c (251) is movably received in the arc-shaped side wall of the limit block b (242), and the limit block d (253) is slidably mounted on the arc-shaped side wall of the limit block b (242) for adjusting the distance between the limit block c (251) and the limit block d (253).

2. The micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston according to claim 1, characterized in that: A screw rod (21) is rotatably mounted in the No. 1 sliding groove (2), and the screw rod nut a (211) is a T-shaped structure. The screw rod nut a (211) is slidably engaged in the No. 1 sliding groove (2), and the screw rod nut a (211) is threadably engaged with the No. 1 screw rod (21).

3. The micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston according to claim 1, characterized in that: A second screw rod (222) is rotatably mounted in the second sliding groove (221), and the screw rod nut b (23) is threadably engaged with the second screw rod (222), and the screw rod nut b (23) is a T-shaped structure adapted to the second sliding groove (221).

4. The micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston according to claim 1, characterized in that: A water delivery pump (32) is fixedly installed on the side wall of the cylinder body (1) near the bottom edge, the input end of the water delivery pump (32) is connected to the cavity through a water pipe (3), and the output end of the water delivery pump (32) is connected to the top of the cavity through the water pipe (3), the water delivery pump (32) is used to deliver liquid at the bottom of the cavity back into the cavity, and a filter screen (31) is fixedly installed near the upper end of the water pipe (3).

5. The micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston according to claim 1, characterized in that: A stirring rod (27) is fixedly installed below the mounting block (24), and a plurality of No. 3 sliding grooves (271) are provided through the side wall of the stirring rod (27), and a No. 3 screw rod (272) is rotatably installed in each of the No. 3 sliding grooves (271), and a screw rod nut c (28) is slidably installed in the No. 3 sliding groove (271), and the screw rod nut c (28) is threadedly engaged with the No. 3 screw rod (272).

6. The micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston according to claim 1, characterized in that: A fourth sliding groove (241) is provided on one side of the mounting block (24), a fourth screw rod (245) is rotatably installed in the fourth sliding groove (241), two limit blocks b (242) are symmetrically arranged in the fourth sliding groove (241), and a screw rod nut d (243) is fixedly provided on one side of the limit block b (242), and the screw rod nut d (243) is threadedly matched with the fourth screw rod (245).

7. The micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston according to claim 6, characterized in that: The arc-shaped side wall of the limit block b (242) is provided with a contraction groove (246), a spring (247) is fixedly installed in the contraction groove (246), and the other end of the spring (247) is fixedly installed with a limit block c (251), and a No. 5 sliding groove (248) is provided just below the contraction groove (246), a No. 5 screw rod (249) is rotatably installed in the No. 5 sliding groove (248), and the limit block d (253) is slidably set in the No. 5 sliding groove (248), and a screw nut e (252) is fixedly installed on the side wall of the limit block d (253), wherein the screw nut e (252) is threadedly matched with the No. 5 screw rod (249), and the limit block c (251) and the limit block d (253) are both arc-shaped structures.

8. The micro-arc oxidation treatment device for the surface of a hydraulic cylinder piston according to claim 5, characterized in that: A limiting groove a (273) is provided in the third sliding groove (271), and limiting protrusions a (281) adapted to the limiting groove a (273) are fixedly installed on both side walls of the screw nut c (28). The screw nut c (28) is slidably engaged in the third sliding groove (271) through the limiting protrusions a (281), and stirring plates (282) are fixed on both sides of the screw nut c (28).

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