Tool for repairing local damage of chromium layer on surface of piston rod of oil cylinder

By designing a tooling for repairing localized damage to the chromium layer on the surface of the hydraulic cylinder piston rod, the problem of high cost in on-site repair of localized damage to the hydraulic cylinder piston rod was solved, enabling low-cost on-site chromium plating treatment and ensuring the normal operation of the process.

CN223510012UActive Publication Date: 2025-11-04WUHAN YILI JUNHE GAOLI HYDRAULIC EQUIP CO LTD
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Patent Information

Application Number
CN202422952027.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-04
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

The piston rod of the hydraulic cylinder is prone to local damage such as dents, scratches, scoring, and chromium stripping when exposed to the elements for a long time, resulting in high maintenance costs.

Method used

A tooling for repairing localized damage to the chromium layer on the surface of a hydraulic cylinder piston rod has been designed. It includes a rubber-fitting base, a solution tank, a bracket, a metal rod, and an electrode plate. Localized chromium plating is achieved through a motor drive and a fixing mechanism, avoiding the need for disassembly and return to the factory for repair.

Benefits of technology

This technology enables on-site localized chrome plating, reduces maintenance costs, and ensures the normal operation of the chrome plating process and the sealing of the solution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an oil cylinder piston rod surface chromium layer local damage repairing tool, which relates to the field of repairing tools and is applied to an oil cylinder piston rod, a rubber fitting base is arranged on the outer side of the oil cylinder piston rod, a solution tank is fixedly mounted on the top side of the rubber fitting base, two brackets are fixedly mounted on the top side of the solution tank, and metal rods are placed on the brackets. An electrode plate is fixedly installed on the metal rod, a fixing mechanism is arranged between the rubber attaching base and the oil cylinder piston rod, and a pretreatment assembly is arranged on one side of the oil cylinder piston rod. According to the utility model, a local chromium plating tool is built at the local position of the surface of the oil cylinder piston rod by using the rubber fitting base and the solution tank, so that the repaired oil cylinder piston rod can be subjected to chromium plating in the rubber fitting base, and the device is suitable for local chromium plating processing of the surface of the oil cylinder piston rod; therefore, on-site treatment can be achieved, and the problem that high cost is generated when the oil cylinder is detached and pulled back to a factory for maintenance is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to repair frock technical field especially relates to oil cylinder piston rod surface chromium layer local damage repair frock. BACKGROUND

[0002] Chromium plating refers to the behavior of plating chromium as a coating on other metals, chromium is a kind of silver-white metal with a little blue, metal chromium is extremely easy to passivate in air, a very thin passivation film is formed on the surface, thereby showing the nature of noble metal, and the piston rod is a connecting component for supporting the piston to work, most of which are applied in oil cylinder, cylinder movement execution component, and is a frequently moving, high-technology moving component.

[0003] In the prior art, the piston rod is exposed for a long time, which is easy to be scratched, locally scratched, scratched, chrome peeled off and peeled off, and the oil cylinder is removed and pulled back to the factory for maintenance due to the influence of the site conditions, which will cause high cost, so the oil cylinder piston rod surface chromium layer local damage repair frock is needed to meet people's needs. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of oil cylinder piston rod surface chromium layer local damage repair frock, to solve the problem that the piston rod is exposed for a long time in above-mentioned background art, which is easy to be scratched, locally scratched, scratched, chrome peeled off and peeled off, and the oil cylinder is removed and pulled back to the factory for maintenance due to the influence of the site conditions, which will cause high cost.

[0005] To achieve the above object, the utility model provides the following technical scheme: oil cylinder piston rod surface chromium layer local damage repair frock is applied to oil cylinder piston rod, the bottom side of the oil cylinder piston rod is arranged with carrying mechanism, the outer side of the oil cylinder piston rod is arranged with rubber fitting base, the top side of rubber fitting base is fixedly installed with solution tank, two brackets are fixedly installed on the top side of solution tank, metal rod is placed on bracket, electrode piece is fixedly installed on metal rod, fixed mechanism is arranged between rubber fitting base and oil cylinder piston rod, one side of the oil cylinder piston rod is arranged with pretreatment component.

[0006] Preferably, the carrying mechanism includes bottom plate one, and the bottom plate one is located at the bottom side of the oil cylinder piston rod, two motors are rotatably installed on the rubber fitting base, the two motors are in contact with the outer side of the oil cylinder piston rod, and the motor is fixedly installed on the bottom plate one, and the output end of the motor is connected with the contact wheel one.

[0007] Preferably, the carrying mechanism further includes bottom plate two, and the bottom plate two is arranged at the bottom side of the oil cylinder piston rod, and two contact wheels two are rotatably installed on the bottom plate two, and the two contact wheels two are in contact with the outer side of the oil cylinder piston rod.

[0008] Preferably, the fixing mechanism comprises two pressing rods, both of which are in contact with the rubber fitting base, and both of the pressing rods are provided with two pressing pieces, and a fixing bolt is threadedly installed between the pressing piece and the pressing rod.

[0009] Preferably, the bottom side of the oil cylinder piston rod is provided with a bottom mounting base, the top side of the bottom mounting base is fixedly installed with two lead screws, a connecting sleeve rod is slidingly installed on the lead screw, and both ends of the connecting sleeve rod are sleeved on the two pressing rods.

[0010] Preferably, the top end of the lead screw is threadedly installed with a threaded sleeve, the bottom side of the threaded sleeve is in contact with the connecting sleeve rod, and a driving handle is fixedly installed on the threaded sleeve.

[0011] Preferably, the pretreatment assembly comprises a mounting plate, a sponge block is fixedly installed on the bottom side of the mounting plate, a metal rod is fixedly installed on the top side of the mounting plate, an insulating sleeve is fixedly installed on the outer side of the metal rod, and the metal rod is connected with the sponge block.

[0012] The oil cylinder piston rod surface chrome layer local damage repair tool has the advantages that:

[0013] In the oil cylinder piston rod surface chrome layer local damage repair tool, the rubber fitting base and the solution tank are used to build a local chrome plating tool on the local position of the surface of the oil cylinder piston rod, so that the repaired oil cylinder piston rod can be chrome plated in the rubber fitting base, the metal rod and the electrode piece can also be used for electroplating treatment, the device is suitable for surface local chrome plating processing of the oil cylinder piston rod, and thus the on-site processing can be realized, and the problem that the oil cylinder is removed back to the factory for maintenance and high cost is avoided.

[0014] In the oil cylinder piston rod surface chrome layer local damage repair tool, the pressing rod and the pressing piece are used to tightly press the rubber fitting base on the surface of the oil cylinder piston rod, so that the leakage of the chrome plating solution is avoided, the normal chrome plating processing is ensured, the device can be driven to rotate in the direction of the oil cylinder piston rod by using the motor driving contact wheel one, the processing position is adjusted, and the pretreatment solution can be uniformly applied to the local surface of the oil cylinder piston rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model provides an oil cylinder piston rod surface chrome layer local damage repair tool's stereogram structure schematic diagram;

[0016] Figure 2 The utility model provides an oil cylinder piston rod surface chrome layer local damage repair tool's side structure schematic diagram;

[0017] Figure 3 The utility model provides an oil cylinder piston rod surface chrome layer local damage repair tool's plan structure schematic diagram;

[0018] Figure 4This is a schematic diagram of the pretreatment component of the tooling for repairing local damage to the chromium layer on the surface of the hydraulic cylinder piston rod proposed in this utility model.

[0019] In the diagram: 100, cylinder piston rod; 200, base plate one; 201, contact wheel one; 202, motor; 203, base plate two; 204, contact wheel two; 300, rubber bonding base; 301, solution tank; 302, bracket; 303, metal rod; 304, electrode plate; 400, clamping rod; 401, clamping plate; 402, fixing bolt; 403, bottom mounting base; 404, lead screw; 405, connecting sleeve rod; 406, threaded sleeve; 407, drive handle; 500, pretreatment assembly; 501, mounting plate; 502, sponge block; 503, insulating sleeve; 504, metal rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A tooling for repairing localized chromium plating damage on the surface of a hydraulic cylinder piston rod 100 is provided. A mounting mechanism is arranged on the bottom side of the piston rod 100, and a rubber-fitting base 300 is arranged on the outer side of the piston rod 100. A solution tank 301 is fixedly installed on the top side of the rubber-fitting base 300, and two brackets 302 are fixedly installed on the top side of the solution tank 301. A metal rod 303 is placed on the brackets 302, and an electrode plate 304 is fixedly installed on the metal rod 303. A fixing mechanism is arranged between the rubber-fitting base 300 and the piston rod 100. A pretreatment component 500 is arranged on one side of the piston rod 100. By using the rubber-fitting base and the solution tank, a localized chromium plating tooling is constructed on a localized location on the surface of the piston rod, allowing the repaired piston rod to be chromium plating inside the rubber-fitting base. This device is suitable for localized chromium plating of the piston rod surface, enabling on-site processing and avoiding the high costs associated with disassembling and returning the cylinder to the factory for repair.

[0022] In an optional embodiment: the mounting mechanism includes a base plate 200, which is located on the bottom side of the cylinder piston rod 100. Two motors 202 are rotatably mounted on the rubber-fitting base 300. Both motors 202 are in contact with the outside of the cylinder piston rod 100. The motors 202 are fixedly mounted on the base plate 200, and the output end of the motors 202 is connected to the contact wheel 201.

[0023] It should be noted that the cylinder piston rod 100 is placed on the base plate 200 and the base plate 203, and then the cylinder piston rod 100 can be driven to rotate by the motor 202 driving the contact wheel 201 to rotate, which makes it convenient for maintenance personnel to treat the surface of the cylinder piston rod 100.

[0024] In an optional embodiment: the mounting mechanism further includes a base plate 203, which is arranged on the bottom side of the cylinder piston rod 100. Two contact wheels 204 are rotatably mounted on the base plate 203, and both contact wheels 204 are in contact with the outer side of the cylinder piston rod 100.

[0025] In an optional embodiment: the fixing mechanism includes two clamping rods 400, both of which are in contact with the rubber-fitting base 300. The two clamping rods 400 are provided with two clamping plates 401, and a fixing bolt 402 is threaded between the clamping plates 401 and the clamping rods 400.

[0026] It should be noted that clamping rod 400 and clamping plate 401 are used for reinforcement to prevent leakage during chrome plating.

[0027] In an optional embodiment: a bottom mounting base 403 is arranged on the bottom side of the cylinder piston rod 100, and two lead screws 404 are fixedly installed on the top side of the bottom mounting base 403. A connecting sleeve 405 is slidably installed on the lead screw 404, and the two ends of the connecting sleeve 405 are sleeved on the two clamping rods 400. A threaded sleeve 406 is threadedly installed on the top end of the lead screw 404, and the bottom side of the threaded sleeve 406 is in contact with the connecting sleeve 405. A drive handle 407 is fixedly installed on the threaded sleeve 406.

[0028] It should be noted that the clamping rod 400 is placed on the rubber bonding base 300, and then the clamping plate 401 is fixed on the clamping rod 400 using the fixing bolt 402. Then, the connecting sleeve rod 405 is sleeved on both ends of the clamping rod 400, and the connecting sleeve rod 405 is passed through the lead screw 404. The drive handle 407 is used to drive the threaded sleeve 406 to rotate on the lead screw 404. The contact pressure between the rubber bonding base 300 and the hydraulic cylinder piston rod 100 is strengthened by the threaded sleeve 406 squeezing the connecting sleeve rod 405, so as to avoid leakage of chrome plating liquid and ensure normal chrome plating processing.

[0029] In an optional embodiment: the pretreatment component 500 includes a mounting plate 501, a sponge block 502 is fixedly mounted on the bottom side of the mounting plate 501, a metal rod 504 is fixedly mounted on the top side of the mounting plate 501, an insulating sleeve 503 is fixedly mounted on the outside of the metal rod 504, and the metal rod 504 is connected to the sponge block 502.

[0030] It should be noted that the sponge block 502 at the bottom of the pretreatment component 500 can be dipped into different pretreatment solutions to treat the surface of the cylinder piston rod 100, such as electro-cleaning solution, activating solution, etc. The metal rod 504 is directly connected to the sponge block 502, which can facilitate electrical treatment. The insulating sleeve 503 covering the surface of the metal rod 504 can ensure that the user does not come into contact with the metal rod 504.

[0031] Working principle of this utility model:

[0032] When using this device, the cylinder piston rod 100 first needs to be placed on the base plate 200 and the base plate 203. Then, the cylinder piston rod 100 can be driven to rotate by the motor 202 driving the contact wheel 201, which facilitates the maintenance personnel to treat the surface of the cylinder piston rod 100. The sponge block 502 at the bottom of the pretreatment component 500 can be dipped in different pretreatment solutions to treat the surface of the cylinder piston rod 100, such as electro-cleaning solution, activating solution, etc. The metal rod 504 is directly connected to the sponge block 502, which can facilitate electrical treatment. The insulating sleeve 503 covering the surface of the metal rod 504 can ensure that the user does not touch the metal rod 504. During chrome plating, the rubber bonding base 300 needs to be covered on the surface of the cylinder piston rod 100 and reinforced with the clamping rod 400 and clamping plate 401 to prevent leakage during chrome plating. First, the clamping rod 400 is placed on the rubber bonding base 300, and then the fixing bolts 401 are used. 02. Fix the clamping plate 401 onto the clamping rod 400, then fit the connecting sleeve rod 405 onto both ends of the clamping rod 400. Pass the connecting sleeve rod 405 through the lead screw 404, and use the drive handle 407 to drive the threaded sleeve 406 to rotate on the lead screw 404. By using the threaded sleeve 406 to squeeze the connecting sleeve rod 405, the contact pressure between the rubber bonding base 300 and the cylinder piston rod 100 is strengthened, preventing leakage of chromium plating solution and ensuring normal chromium plating processing. A local chromium plating fixture is built on a local position on the surface of the cylinder piston rod 100 using the rubber bonding base 300 and the solution tank 301, so that the repaired cylinder piston rod 100 can be chromium plating inside the rubber bonding base 300. Electroplating can also be performed using the metal rod 303 and the electrode plate 304, making the device suitable for local chromium plating processing on the surface of the cylinder piston rod 100, so that the processing can be carried out on-site, avoiding the problem of high costs caused by disassembling and pulling the cylinder back to the factory for repair.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tooling for repairing localized damage to the chromium layer on the surface of a hydraulic cylinder piston rod, applied to a hydraulic cylinder piston rod (100), characterized in that: A mounting mechanism is arranged on the bottom side of the cylinder piston rod (100), and a rubber bonding base (300) is arranged on the outside of the cylinder piston rod (100). A solution tank (301) is fixedly installed on the top side of the rubber bonding base (300). Two brackets (302) are fixedly installed on the top side of the solution tank (301). A metal rod (303) is placed on the bracket (302), and an electrode plate (304) is fixedly installed on the metal rod (303). A fixing mechanism is arranged between the rubber bonding base (300) and the cylinder piston rod (100). A pretreatment component (500) is arranged on one side of the cylinder piston rod (100).

2. The tooling for repairing localized damage to the chromium layer on the surface of the hydraulic cylinder piston rod according to claim 1, characterized in that: The mounting mechanism includes a base plate (200) located on the bottom side of the cylinder piston rod (100). Two motors (202) are rotatably mounted on the rubber-fitting base (300). Both motors (202) are in contact with the outside of the cylinder piston rod (100). The motors (202) are fixedly mounted on the base plate (200). The output end of the motors (202) is connected to the contact wheel (201).

3. The tooling for repairing localized damage to the chromium layer on the surface of the hydraulic cylinder piston rod according to claim 1, characterized in that: The mounting mechanism also includes a base plate 2 (203), which is arranged on the bottom side of the cylinder piston rod (100). Two contact wheels 2 (204) are rotatably mounted on the base plate 2 (203), and both contact wheels 2 (204) are in contact with the outside of the cylinder piston rod (100).

4. The tooling for repairing localized damage to the chromium layer on the surface of the hydraulic cylinder piston rod according to claim 1, characterized in that: The fixing mechanism includes two clamping rods (400), both of which are in contact with the rubber-fitting base (300). Two clamping plates (401) are arranged on the two clamping rods (400), and a fixing bolt (402) is threaded between the clamping plates (401) and the clamping rods (400).

5. The tooling for repairing localized damage to the chromium layer on the surface of the hydraulic cylinder piston rod according to claim 1, characterized in that: The bottom side of the piston rod (100) of the hydraulic cylinder is provided with a bottom mounting seat (403), and two lead screws (404) are fixedly installed on the top side of the bottom mounting seat (403). A connecting sleeve (405) is slidably installed on the lead screw (404), and the two ends of the connecting sleeve (405) are sleeved on the two clamping rods (400).

6. The tooling for repairing localized damage to the chromium layer on the surface of the hydraulic cylinder piston rod according to claim 5, characterized in that: The top end of the lead screw (404) is threaded with a threaded sleeve (406), the bottom side of the threaded sleeve (406) is in contact with the connecting sleeve rod (405), and a drive handle (407) is fixedly installed on the threaded sleeve (406).

7. The tooling for repairing localized damage to the chromium layer on the surface of the hydraulic cylinder piston rod according to claim 1, characterized in that: The pretreatment component (500) includes a mounting plate (501), a sponge block (502) is fixedly mounted on the bottom side of the mounting plate (501), a metal rod (504) is fixedly mounted on the top side of the mounting plate (501), an insulating sleeve (503) is fixedly mounted on the outside of the metal rod (504), and the metal rod (504) is connected to the sponge block (502).