A hydraulic cylinder seal detection device

Abstract

The utility model relates to hydraulic cylinder detection equipment technical field, concretely relates to a kind of hydraulic cylinder leakproofness detection device, including support frame, two bearing mechanisms, gasification mechanism and drying mechanism, support frame is fixedly connected with connecting shell, and water storage tank is opened in connecting shell, two bearing mechanisms are all arranged in the inside of connecting shell, for fixing hydraulic cylinder and adjusting the position of hydraulic cylinder, gasification mechanism is arranged in the inside of connecting shell, drying mechanism is fixed in the inside of connecting shell.In the utility model, two bearing mechanisms are arranged in the inside of connecting shell, and two ear ring bases on hydraulic cylinder are respectively inserted with corresponding two bearing rods, and after the placement of hydraulic cylinder is completed, the ear ring base connected to the conveying end of hydraulic cylinder will push corresponding rotating plate to extrude pressure sensor, then after a certain amount of gas is delivered to hydraulic cylinder by using gasification mechanism, the value change of pressure sensor can be observed to quickly judge whether hydraulic cylinder leaks.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic cylinder testing equipment, specifically a hydraulic cylinder sealing testing device. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device, has no transmission backlash, and provides smooth movement, thus finding wide application in the hydraulic systems of various machines. A hydraulic cylinder uses hydraulic oil as its working medium, transmitting motion through changes in the sealed volume and power through the pressure within the oil. Establishing a sealed volume and pressure requires a well-sealed space. After production, hydraulic cylinders require a sealing performance test. This test typically involves filling the cylinder with air and then observing for leaks. However, if the leak is small or the leakage is minimal, it's difficult to quickly determine if a leak has occurred, and the location of the leak is also difficult to pinpoint. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic cylinder sealing performance testing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A hydraulic cylinder sealing performance testing device, comprising:

[0006] A support frame, on which a connecting shell is fixedly connected, and a water storage tank is provided on the connecting shell;

[0007] Both support mechanisms are located inside the connecting shell and are used to fix the hydraulic cylinder and adjust its position.

[0008] The gas filling mechanism is located inside the connecting shell;

[0009] The drying mechanism is fixed inside the connecting shell.

[0010] Furthermore, the supporting mechanism includes:

[0011] An L-shaped plate is disposed inside the connecting shell;

[0012] Electric cylinder one is fixedly connected to the top surface inside the connecting shell, and the output end of electric cylinder one is fixedly connected to the L-shaped plate.

[0013] Electric cylinder two is fixedly connected to the L-shaped plate. A movable plate is fixedly connected to the output end of electric cylinder two, and a pressure sensor is fixedly connected to the inner side wall of the bottom of the movable plate.

[0014] A fixed shell is fixedly connected to the L-shaped plate, and an adjustment component is provided inside the fixed shell;

[0015] Two rotating plates are slidably connected to the bottom of the moving plate and the fixed shell, respectively. A connecting plate is fixedly connected to the rotating plate, and a bearing rod is fixedly connected to the connecting plate. A rubber sleeve is glued and fixed to the outside of the bearing rod.

[0016] Preferably, a telescopic tube is provided on the outer side of the electric cylinder 2, one end of the telescopic tube is fixedly connected to the L-shaped plate, and the other end of the telescopic tube is fixedly connected to the movable plate.

[0017] Preferably, the positioning assembly includes a rotating rod, which is rotatably connected to an inner wall of the fixed housing, and one end of the rotating rod is fixedly connected to a corresponding rotating plate. A servo geared motor is fixedly connected to the top of the inner side of the fixed housing, and synchronous pulleys are sleeved and fixed to the output end of the servo geared motor and the outer side of the rotating rod. A synchronous belt is connected to the outer side of the two synchronous pulleys.

[0018] Preferably, multiple telescopic rods are fixedly connected to the L-shaped plate, and the tops of the multiple telescopic rods are all fixedly connected to the connecting shell.

[0019] Furthermore, the gas refueling mechanism includes:

[0020] A fixed tube is fixedly connected to the connecting shell, and an air inlet pipe and two electrically controlled valves are connected and fixed on the fixed tube.

[0021] The second fixed pipe is fixedly connected to the connecting shell. The second fixed pipe has an air outlet. Two second electrically controlled valves are fixedly connected to the second fixed pipe, and connecting pipes are fixedly connected to both the second and first electrically controlled valves.

[0022] Furthermore, the drying mechanism includes:

[0023] The hot air blower is fixedly connected to the connecting shell;

[0024] One conveying pipe is connected and fixed to the air outlet of the hot air blower. A second conveying pipe is connected and fixed to the first conveying pipe, and both ends of the second conveying pipe are fixedly connected to the connecting shell.

[0025] Both air outlet shells are connected and fixed to the second conveying pipe.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] 1. By setting two bearing mechanisms inside the connecting shell, and by inserting the two lug bases on the hydraulic cylinder into the corresponding two bearing rods respectively, after the hydraulic cylinder is placed, the lug base connected to the hydraulic cylinder delivery end will push the corresponding rotating plate to squeeze the pressure sensor. After the gas supply mechanism supplies a certain amount of gas to the hydraulic cylinder, the change in the pressure sensor value can be observed to quickly determine whether the hydraulic cylinder is leaking. When the hydraulic cylinder is detected to be leaking, the electric cylinder is activated to extend, causing the hydraulic cylinder to move downward and slowly submerge in the water. By activating the servo reduction motor, the rotating rod, rotating plate, connecting plate, bearing rod and hydraulic cylinder are rotated. By adjusting the position of the hydraulic cylinder, it is easy for the staff to quickly find the location of the leak. The two bearing mechanisms can be used alternately, making it more convenient to use.

[0028] 2. A drying mechanism is installed inside the connecting shell. By starting the hot air blower, hot air is easily transported to the inside of the air outlet shell through conveying pipe one and conveying pipe two. The air outlet shell facilitates the guidance and transport of the hot air, thereby facilitating the drying of the surface of the hydraulic cylinder. Furthermore, by starting the servo reduction motor, the hydraulic cylinder is rotated, ensuring the drying effect of the hydraulic cylinder and preventing water from entering the interior of the hydraulic cylinder from the leakage point, which facilitates subsequent processing. Attached Figure Description

[0029] Figure 1-2 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the load-bearing mechanism structure in this utility model;

[0031] Figure 4 This is a schematic diagram showing the positional relationship between the fixed shell and the rotating rod in this utility model;

[0032] Figure 5 This is a schematic diagram showing the positional relationship between the connecting shell and the fixing tube in this utility model;

[0033] Figure 6 This is a schematic diagram of the drying mechanism in this utility model.

[0034] In the diagram: 100, support frame; 110, connecting shell; 111, water storage tank; 200, bearing mechanism; 210, L-shaped plate; 220, electric cylinder one; 230, telescopic rod; 240, electric cylinder two; 241, moving plate; 242, pressure sensor; 243, telescopic pipe; 250, fixed shell; 251, rotating rod; 252, servo geared motor; 253, synchronous pulley; 254, synchronous belt; 260, rotating plate; 261, connecting plate; 262, bearing rod; 400, gas filling mechanism; 410, fixed pipe one; 411, air inlet pipe; 412, electric control valve one; 420, fixed pipe two; 421, electric control valve two; 430, connecting pipe; 500, drying mechanism; 510, hot air blower; 520, conveying pipe one; 521, conveying pipe two; 530, air outlet shell. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-6 In this embodiment of the utility model, a hydraulic cylinder sealing test device includes: a support frame 100, two bearing mechanisms 200, an air filling mechanism 400, and a drying mechanism 500. A connecting shell 110 is fixedly connected to the support frame 100, and a water storage tank 111 is provided on the connecting shell 110. The two bearing mechanisms 200 are both disposed inside the connecting shell 110 for fixing the hydraulic cylinder and adjusting the position of the hydraulic cylinder. The air filling mechanism 400 is disposed inside the connecting shell 110, and the drying mechanism 500 is fixed inside the connecting shell 110.

[0037] Specifically, the bearing mechanism 200 facilitates the fixing of the hydraulic cylinder, and the gas filling mechanism 400 facilitates the delivery of a fixed amount of gas into the hydraulic cylinder. The water storage tank 111 stores a fixed amount of water. The bearing mechanism 200 and the gas filling mechanism 400 work together to facilitate the rapid testing of the hydraulic cylinder's sealing performance. If the hydraulic cylinder's sealing performance is compromised, the bearing mechanism 200 can transport the hydraulic cylinder to the water inside the connecting shell 110 and adjust the position of the hydraulic cylinder, thereby facilitating the rapid identification of the leak location. Furthermore, the two bearing mechanisms 200 can be used alternately, which also facilitates the drying of the hydraulic cylinder's surface.

[0038] Example 1

[0039] like Figure 3-5As shown, in this embodiment, the supporting mechanism 200 includes: an L-shaped plate 210, an electric cylinder 220, an electric cylinder 240, a fixed shell 250, and two rotating plates 260. The L-shaped plate 210 is disposed inside the connecting shell 110. The electric cylinder 220 is fixedly connected to the inner top surface of the connecting shell 110, and the output end of the electric cylinder 220 is fixedly connected to the L-shaped plate 210. The electric cylinder 240 is fixedly connected to the L-shaped plate 210, and the output end of the electric cylinder 240 is fixedly connected to a moving plate. A movable plate 241 is provided, and a pressure sensor 242 is fixedly connected to the inner wall of the bottom of the movable plate 241. A fixed housing 250 is fixedly connected to an L-shaped plate 210. An adjustment assembly is provided inside the fixed housing 250. Two rotating plates 260 are slidably connected to the bottom of the movable plate 241 and the fixed housing 250, respectively. A connecting plate 261 is fixedly connected to the rotating plate 260, and a bearing rod 262 is fixedly connected to the connecting plate 261. A rubber sleeve is glued and fixed to the outside of the bearing rod 262 for adjustment. The component includes a rotating rod 251, which is rotatably connected to an inner wall of a fixed housing 250. One end of the rotating rod 251 is fixedly connected to a corresponding rotating plate 260. A servo reduction motor 252 is fixedly connected to the top of the inner side of the fixed housing 250. Synchronous pulleys 253 are sleeved and fixed to the output end of the servo reduction motor 252 and the outer side of the rotating rod 251. A synchronous belt 254 is driven and connected to the outer side of the two synchronous pulleys 253. The gas filling mechanism 400 includes a first fixed pipe 410 and a second fixed pipe 420. The first fixed pipe 410 is fixedly connected to a connecting housing 110. An air inlet pipe 411 and two first electric control valves 412 are connected and fixedly connected to the first fixed pipe 410. The second fixed pipe 420 is fixedly connected to the connecting housing 110. An air outlet is opened on the second fixed pipe 420. Two second electric control valves 421 are connected and fixedly connected to the second fixed pipe 420. A connecting pipe 430 is connected and fixedly connected to both the second electric control valves 421 and the two first electric control valves 412.

[0040] In this embodiment, by activating the second electric cylinder 240, the moving plate 241 is moved, thereby moving the rotating plate 260, connecting plate 261, and bearing rod 262 connected to the second electric cylinder 240 to the appropriate position. The two lug bases on the hydraulic cylinder are then inserted into the corresponding two bearing rods 262, and the rubber sleeves on the bearing rods 262 press against the lug bases on the hydraulic cylinder, thus fixing the position of the hydraulic cylinder. After the hydraulic cylinder is placed, the lug bases connected to the hydraulic cylinder's delivery end push... The corresponding bearing rod 262, connecting plate 261, and rotating plate 260 move and squeeze the pressure sensor 242. Then, by connecting the connecting pipe 430 on the first solenoid valve 412 to the oil inlet of the hydraulic cylinder, and connecting the connecting pipe 430 on the second solenoid valve 421 to the oil outlet of the hydraulic cylinder, the second solenoid valve 421 is closed and the first solenoid valve 412 is opened. Air is supplied to the fixed pipe 410 using an external air pump and air inlet pipe 411, thereby supplying air to the hydraulic cylinder through the first solenoid valve 412 and its connecting pipe 430. When a certain amount of air is supplied... After the body is closed, the solenoid valve 412 is shut off and left to stand for a period of time. If the hydraulic cylinder leaks air, the pressure on the pressure sensor 242 will decrease. If the hydraulic cylinder is well-sealed, the pressure on the pressure sensor 242 will remain unchanged. When a leak is detected in the hydraulic cylinder, the electric cylinder 220 is activated to extend, causing the electric cylinder 240, the fixed housing 250, the rotating plate 260, the connecting plate 261, the bearing rod 262, and the hydraulic cylinder to move downwards, slowly submerging the hydraulic cylinder in the water. The leaking area will impact the water, generating a series of bubbles, and the servo motor will be activated. The servo geared motor 252 drives the corresponding synchronous pulley 253 to rotate. The synchronous belt 254 and the two synchronous pulleys 253 work together to make the rotating rod 251 rotate, thereby causing the rotating plate 260, the connecting plate 261, the bearing rod 262 and the hydraulic cylinder to rotate. After the hydraulic cylinder rotates one revolution, the servo geared motor 252 reverses, thereby controlling the hydraulic cylinder to reset and preventing the connecting pipe 430 from getting tangled. By adjusting the position of the hydraulic cylinder, it is easier for the staff to quickly find the location of the leak, making it more convenient to use.

[0041] like Figure 3 As shown, in this embodiment, multiple telescopic rods 230 are fixedly connected to the L-shaped plate 210, and the tops of the multiple telescopic rods 230 are fixedly connected to the connecting shell 110. A telescopic tube 243 is provided on the outside of the electric cylinder 240. One end of the telescopic tube 243 is fixedly connected to the L-shaped plate 210, and the other end of the telescopic tube 243 is fixedly connected to the moving plate 241.

[0042] In practice, multiple telescopic rods 230 are used to assist in limiting and guiding the L-shaped plate 210, thereby ensuring the stability of the L-shaped plate 210 during use. Telescopic tubes 243 are used to assist in limiting and guiding the moving plate 241, thereby ensuring the stability of the moving plate 241 during use.

[0043] Example 2

[0044] Based on Example 1, in order to dry the surface of the hydraulic cylinder.

[0045] like Figure 6 As shown, in this embodiment, the drying mechanism 500 includes: a hot air blower 510, a first conveying pipe 520, and two air outlet shells 530. The hot air blower 510 is fixedly connected to the connecting shell 110. The first conveying pipe 520 is connected and fixedly connected to the air outlet end of the hot air blower 510. A second conveying pipe 521 is connected and fixedly connected to the first conveying pipe 520, and both ends of the second conveying pipe 521 are fixedly connected to the connecting shell 110. Both air outlet shells 530 are connected and fixedly connected to the second conveying pipe 521.

[0046] In practice, by starting the hot air blower 510, the hot air is easily delivered to the inside of the air outlet shell 530 through the first conveying pipe 520 and the second conveying pipe 521. The air outlet shell 530 is used to guide and deliver the hot air, thereby facilitating the drying of the surface of the hydraulic cylinder. Then, by starting the servo reduction motor 252, the hydraulic cylinder is rotated, ensuring the drying effect of the hydraulic cylinder.

[0047] In this invention, to facilitate operator control of the utility model, a PLC controller can be set up, and the electric cylinder 220, electric cylinder 240, servo geared motor 252, electric control valve 412, electric control valve 421 and hot air blower 510 are all electrically connected to the PLC controller. The PLC controller is existing technology and will not be described in detail here.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic cylinder sealing performance testing device, characterized in that, Include: Support frame (100), the support frame (100) is fixed with the connecting shell (110), and the connecting shell (110) is provided with water storage groove (111); Two bearing mechanisms (200) are arranged in the inside of the connecting shell (110), for fixing hydraulic cylinder and adjusting the position of hydraulic cylinder; Aeration mechanism (400) is arranged in the inside of the connecting shell (110); Drying mechanism (500) is fixed in the inside of the connecting shell (110).

2. The hydraulic cylinder leak detection apparatus of claim 1, wherein The bearing mechanism (200) includes: L-shaped plate (210) is arranged in the inside of the connecting shell (110); Electric cylinder one (220) is fixed with the top surface in the connecting shell (110), and the output end of the electric cylinder one (220) is fixed with the L-shaped plate (210); Electric cylinder two (240) is fixed with the L-shaped plate (210), and the output end of the electric cylinder two (240) is fixed with the moving plate (241), and the inner side wall of the bottom of the moving plate (241) is fixed with the pressure sensor (242); Fixed shell (250) is fixed with the L-shaped plate (210), and the inside of the fixed shell (250) is provided with a position adjusting assembly; Two rotating plates (260) are respectively slidably connected with the bottom of the moving plate (241) and the fixed shell (250), the connecting plate (261) is fixed on the rotating plate (260), and the bearing rod (262) is fixed on the connecting plate (261), and the rubber sleeve is bonded on the outer side of the bearing rod (262).

3. The hydraulic cylinder leak detection apparatus of claim 2, wherein The outer side of the electric cylinder two (240) is provided with a telescopic pipe (243), one end of the telescopic pipe (243) is fixed with the L-shaped plate (210), and the other end of the telescopic pipe (243) is fixed with the moving plate (241).

4. The hydraulic cylinder leak detection apparatus of claim 2, wherein The position adjusting assembly includes rotating rod (251), the rotating rod (251) is rotatably connected with the inner side wall of the fixed shell (250), one end of the rotating rod (251) is fixed with the corresponding rotating plate (260), the top of the inner side of the fixed shell (250) is fixed with the servo reducer motor (252), and the output end of the servo reducer motor (252) and the outer side of the rotating rod (251) are both sleeved with the synchronous wheel (253), and the outer sides of the two synchronous wheels (253) are drivingly connected with the synchronous belt (254).

5. The hydraulic cylinder leak detection apparatus of any of claims 2-4, wherein, The L-shaped plate (210) is fixed with a plurality of telescopic rods (230), and the top of the plurality of telescopic rods (230) is fixed with the connecting shell (110).

6. The hydraulic cylinder leak detection apparatus of claim 1, wherein The aeration mechanism (400) includes: Fixed pipe one (410) is fixed with the connecting shell (110), and the fixed pipe one (410) is fixed with the air inlet pipe (411) and two electric control valves one (412) in communication; Fixed pipe two (420) is fixed with the connecting shell (110), and the fixed pipe two (420) is provided with an air outlet hole, and the fixed pipe two (420) is fixed with two electric control valves two (421) in communication, and the two electric control valves two (421) and the two electric control valves one (412) are both fixed with the connecting pipe (430) in communication.

7. The hydraulic cylinder leak detection apparatus of claim 1, wherein The drying mechanism (500) includes: A hot air blower (510) is fixedly connected to the connecting shell (110); The first conveying pipe (520) is connected and fixed to the air outlet of the hot air blower (510). The second conveying pipe (521) is connected and fixed to the first conveying pipe (520), and both ends of the second conveying pipe (521) are fixedly connected to the connecting shell (110). Both air outlet shells (530) are connected and fixed to the second conveying pipe (521).

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