Connecting device for oil cylinder electroplating

Abstract

The utility model relates to a connecting device for oil cylinder electroplating, which comprises a hook, a connecting plate, a fixed conductive disc, a connecting plug and a connecting rod, the center of the connecting plate is provided with a round hole for the connecting rod to penetrate through, the upper end of the connecting rod is provided with a fixing nut, the lower end of the connecting rod is provided with the connecting plug, and the fixed conductive disc is of a flat cylinder structure. A center hole for the connecting rod to penetrate through is formed in the center of the fixed conductive disc, a plurality of overflow holes are evenly formed around the center hole, and the edge of the fixed conductive disc extends outwards to form conductive disc bosses used for bearing the bottoms of the upper oil cylinder and the lower oil cylinder. The hydraulic support oil cylinder electroplating device is ingenious in design, simple in structure, convenient and fast to use, capable of greatly improving the utilization rate of the electroplating tank and high in electroplating production efficiency, solves the technical problems that in the electroplating process of an existing hydraulic support oil cylinder, the utilization rate of the electroplating tank is low, and the electroplating productivity is low, and has good market prospects and development space compared with the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil cylinder electroplating equipment, especially to a connecting device for oil cylinder electroplating. BACKGROUND

[0002] To ensure the service life of the hydraulic support oil cylinder, the oil cylinder needs to be treated with double-chromium electroplating on the outer circle in production to improve the corrosion resistance and wear resistance of the oil cylinder. Currently, the size of the outer circle of the general hydraulic support oil cylinder is φ18cm-φ50cm, and the length is 50-250cm. The size of the chromium plating tank is 200cm long, 100cm wide, and 200cm-300cm high. Two oil cylinders are placed side by side in each plating tank for electroplating. The existing connecting tooling can only hang one oil cylinder at a time during electroplating. Only two oil cylinders can be placed in the 2-3m deep plating tank. The single-tank electroplating time is about 8-9 hours, the electroplating cycle is relatively long, the utilization rate of the plating tank is low, and the electroplating production capacity is low.

[0003] How to design a connecting device for oil cylinder electroplating that is ingenious in design, simple in structure, convenient and fast to use, greatly improves the utilization rate of the plating tank, and has high electroplating production efficiency is a problem to be solved at present. SUMMARY

[0004] To solve the technical problems of low plating tank utilization rate and low electroplating production capacity in the electroplating process of the existing hydraulic support oil cylinder, the utility model provides a connecting device for oil cylinder electroplating to achieve the purpose of ingenious design, simple structure, convenient and fast use, greatly improved plating tank utilization rate, and high electroplating production efficiency.

[0005] The utility model employs the technical scheme that the connecting device for oil cylinder electroplating includes a hook, a connecting plate, a fixed conductive disc, a connecting plug, and a connecting rod. A circular hole for the connecting rod to pass through is formed in the center of the connecting plate. A fixed nut is arranged at the upper end of the connecting rod. A connecting plug is arranged at the lower end of the connecting rod. The fixed conductive disc is a flat cylindrical structure. A central hole for the connecting rod to pass through is arranged in the center of the fixed conductive disc. A plurality of overflow holes are uniformly arranged around the central hole. The edge of the fixed conductive disc extends outward to form a conductive disc boss for receiving the bottoms of the two oil cylinders.

[0006] As a further optimization scheme of the above-mentioned connecting device for oil cylinder electroplating, the number of overflow holes is three to six.

[0007] As a further optimization scheme of the above-mentioned connecting device for oil cylinder electroplating, the inner diameter of the conductive disc boss is smaller than the inner diameter of the oil cylinder, and the outer diameter of the conductive disc boss matches the outer diameter of the oil cylinder.

[0008] As a further optimization scheme of the above-mentioned connecting device for oil cylinder electroplating, the hook is fixedly welded to the connecting plate.

[0009] As the further optimization scheme of the connecting device for the oil cylinder electroplating, the connecting plug includes a connecting plug threaded hole, a connecting plug inner step circle and a connecting plug outer step circle, the connecting plug threaded hole is matched with the external thread arranged at the lower end of the connecting rod to fix the lower end of the connecting rod in the connecting plug threaded hole.

[0010] As the further optimization scheme of the connecting device for the oil cylinder electroplating, the outer diameter of the connecting plug inner step circle is smaller than the inner diameter of the oil cylinder bottom valve hole to pass through the oil cylinder bottom valve hole, and the outer diameter of the connecting plug outer step circle is larger than the inner diameter of the oil cylinder bottom valve hole to plug the bottom valve hole.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] One, the utility model discloses a hook, connecting plate, fixed conductive disc, connecting plug, connecting rod, the center of connecting plate is seted up with the round hole for the connecting rod passes through, and the upper end of connecting rod is provided with fixed nut, and the lower end of connecting rod is provided with connecting plug, and fixed conductive disc is flat circular cylinder structure, and the center of fixed conductive disc is provided with the center hole for the connecting rod passes through, and the periphery of surrounding center hole is evenly provided with multiple overflow holes, and the edge of fixed conductive disc extends outward and forms the conductive disc boss for receiving the bottom of two oil cylinders.

[0013] Two, the utility model discloses simple structure, and utilizes connecting rod and fixed conductive disc and can conveniently and quickly connect two oil cylinders, makes single plating bath place 2 ~ 4 root upper and lower oil cylinders and carries out electroplating simultaneously, improves plating bath utilization rate, and promotes electroplating efficiency. ACCURATE DRAWINGS

[0014] Figure 1 It is the front view structure schematic drawing of the utility model;

[0015] Figure 2 It is the longitudinal section structure schematic drawing of fixed conductive disc;

[0016] Figure 3 It is the overhead structure schematic drawing of fixed conductive disc;

[0017] Figure 4 It is the longitudinal section structure schematic drawing of connecting plug;

[0018] Figure 5 It is the overhead structure schematic drawing of connecting plug;

[0019] Figure 6 It is the utility model using state section view schematic drawing;

[0020] Marked in the figure: 1, hook, 2, connecting plate, 3, oil cylinder A, 4, fixed conductive disc, 5, oil cylinder B, 6, connecting plug, 7, connecting rod, 8, fixed nut, 401, center hole, 402, overflow hole, 403, conductive disc boss, 601, connecting plug threaded hole, 602, connecting plug inner step circle, 603, connecting plug outer step circle. DETAILED DESCRIPTION

[0021] The specific embodiments of the utility model will be further explained in detail below with reference to the drawings.

[0022] As Figure 1 shown, Figure 1 is the front view structure schematic diagram of the utility model; Connecting device for oil cylinder electroplating, including hook 1, connecting plate 2, fixed conductive disc 4, connecting plug 6, connecting rod 7, hook 1 is fixedly welded on connecting plate 2. The center of connecting plate 2 is provided with round hole for connecting rod 7 to pass through, the upper end of connecting rod 7 is provided with fixed nut 8, and the lower end of connecting rod 7 is provided with connecting plug 6.

[0023] As Figure 2 , 3 shown, Figure 2 is the fixed conductive disc longitudinal section structure schematic diagram; Figure 3 is the fixed conductive disc overhead structure schematic diagram;Fixed conductive disc 4 is flat circular cylinder structure, the center of fixed conductive disc 4 is provided with center hole 401 for connecting rod 7 to pass through, multiple overflow holes 402 are evenly arranged around the periphery of center hole 401, and the edge of fixed conductive disc 4 extends outward to form conductive disc boss 403 for receiving the bottom of two oil cylinders. The number of overflow holes 402 is three to six. The inner diameter of conductive disc boss 403 is less than the inner diameter of oil cylinder, and the outer diameter of conductive disc boss 403 matches the outer diameter of oil cylinder.

[0024] As Figure 4 , 5 shown, Figure 4 is the connecting plug longitudinal section structure schematic diagram; Figure 5 is the connecting plug overhead structure schematic diagram;Connecting plug 6 includes connecting plug threaded hole 601, connecting plug inner step circle 602 and connecting plug outer step circle 603, and connecting plug threaded hole 601 matches with the outer thread arranged at the lower end of connecting rod 7 to fix the lower end of connecting rod 7 in connecting plug threaded hole 601. The outer diameter of connecting plug inner step circle 602 is less than the inner diameter of oil cylinder bottom valve hole to pass through the oil cylinder bottom valve hole, and the outer diameter of connecting plug outer step circle 603 is greater than the inner diameter of oil cylinder bottom valve hole to plug the bottom valve hole.

[0025] As Figure 6 shown, Figure 6is the use state section view schematic diagram of the utility model; the utility model uses process as follows: when using, the lower end of connecting rod 7 is screwed into the threaded hole 601 in connecting plug 6, then the inner step circle 602 in connecting plug is inserted into the bottom valve hole of lower oil cylinder B5, the outer step circle 603 in connecting plug is fixed at the bottom of lower oil cylinder B5, after the central hole 402 in fixed conductive disc 4 is passed through connecting rod 7, the conductive disc boss 403 is fixed at the cylinder mouth of oil cylinder, the upper end of connecting rod 7 is fixed at the cylinder bottom of upper oil cylinder A3 with fixed nut 2, and connecting plate 2 is pressed and connected at the threaded hole of the cylinder bottom of upper oil cylinder A3.After the fixed connection of upper and lower oil cylinders A3 and B5, the hook 1 is hung by the crane hook, and the two oil cylinders after connection are put into the plating tank, and the power supply is connected after the hook 1 is hung on the cathode flying palladium in the plating tank, and then the chromium plating is started.

[0026] After the electroplating is finished, the hook 1 is hung by the crane hook, the oil cylinder is taken out from the plating tank to the upper side of the plating tank, and after the tank liquid is overflowed clean from the oil cylinder, the oil cylinder is placed horizontally in the specified area to remove the connecting device. First, remove the fixed nut 8 at the threaded hole of the cylinder bottom of upper oil cylinder A3, take away the hook 1 and the connecting plate 2, take out the connecting rod 7 and the connecting plug 6, and finally take away the fixed conductive disc 4 in the middle of the two oil cylinders.

[0027] The fixed conductive disc is used to fix the cylinder mouth of the two oil cylinders, and simultaneously plays the role of electric conduction. The overflow hole 401 on the fixed conductive disc is used to make the plating liquid in the oil cylinder flow out quickly when the oil cylinder is taken out from the tank, the central hole 402 is used to pass through the connecting rod 7, and the conductive disc boss 403 is used to fix the cylinder mouth of the oil cylinder and conduct electricity.

[0028] The threaded hole 601 of the connecting plug is used to fix the connecting rod 7, the inner step circle 602 of the connecting plug is used to pass through the bottom valve hole of the oil cylinder, and the outer step circle 603 is used to block the bottom valve hole and is fixed below the bottom oil cylinder. In actual application, the outer step circle 603 is designed as a flat shape, which facilitates the flow of plating liquid from the bottom valve hole of the bottom oil cylinder when the oil cylinder is taken out from the tank.

[0029] The general hydraulic support oil cylinder size outer circle diameter is φ18cm~φ50cm, and the length is 50-250cm, the chromium plating tank size is long 200cm, wide 100cm, high 200cm~300cm, and two oil cylinders are placed in each plating tank for electroplating during electroplating. When electroplating by using the connecting device, the number of single-tank hoisting can be increased from 2 to 4, the utilization rate of the plating tank is improved by 1 times, and the electroplating capacity is increased by 1 times.

[0030] The utility model discloses design ingenious, simple structure, convenient and fast to use, and the plating tank utilization rate is greatly improved, and the electroplating production efficiency is high, and the technical problems, such as the low plating tank utilization rate and the low electroplating capacity, existing in the electroplating process of the existing hydraulic support oil cylinder are solved, and the utility model has good market prospect and development space to the prior art.

[0031] The preferred specific embodiments and examples of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments and examples, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the concept of the utility model.

Claims

1. A connecting device for oil cylinder electroplating, characterized by: The invention comprises a hook (1), a connecting plate (2), a fixed conductive disk (4), a connecting plug (6), and a connecting rod (7). A circular hole for the connecting rod (7) to pass through is provided at the center of the connecting plate (2). A fixing nut (8) is provided at the upper end of the connecting rod (7). A connecting plug (6) is provided at the lower end of the connecting rod (7). The fixed conductive disk (4) is a flat cylindrical structure. A central hole (401) for the connecting rod (7) to pass through is provided at the center of the fixed conductive disk (4). A plurality of overflow holes (402) are evenly provided around the central hole (401). The edge of the fixed conductive disk (4) extends outward to form a conductive disk boss (403) for receiving the bottoms of the upper and lower oil cylinders.

2. The connecting device for oil cylinder electroplating according to claim 1, characterized in that: The number of the overflow holes (402) is three to six.

3. The connecting device for oil cylinder electroplating according to claim 1, characterized in that: The inner diameter of the conductive disc boss (403) is smaller than the inner diameter of the oil cylinder, and the outer diameter of the conductive disc boss (403) matches the outer diameter of the oil cylinder.

4. The connecting device for oil cylinder electroplating according to claim 1, characterized in that: The hook (1) is fixedly welded to the connecting plate (2).

5. The connecting device for oil cylinder electroplating according to claim 1, characterized in that: The connecting plug (6) comprises a connecting plug threaded hole (601), an inner step circle (602) of the connecting plug, and an outer step circle (603) of the connecting plug. The connecting plug threaded hole (601) matches the external thread provided at the lower end of the connecting rod (7) to fix the lower end of the connecting rod (7) in the connecting plug threaded hole (601).

6. The connecting device for oil cylinder electroplating according to claim 5, characterized in that: The outer diameter of the inner step circle (602) of the connecting plug is smaller than the inner diameter of the oil cylinder bottom valve hole so as to pass through the oil cylinder bottom valve hole; the outer diameter of the outer step circle (603) of the connecting plug is larger than the inner diameter of the oil cylinder bottom valve hole so as to block the bottom valve hole.

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