Hydraulic cylinder detection device capable of detecting leakage rate in real time

Abstract

The utility model relates to the technical field of hydraulic cylinder detection, and discloses a hydraulic cylinder detection device capable of detecting leakage rate in real time, which comprises a hydraulic cylinder body, a locking assembly is arranged at the bottom of the surface of the hydraulic cylinder body, a real-time detection assembly is fixedly connected to the rear side of the locking assembly, and the real-time detection assembly comprises a detection shell. And the front side of the inner cavity of the detection shell is fixedly connected with a grating sensor. According to the utility model, through the real-time detection assembly and the cooperation of the grating sensor and the lifting rod, the small displacement change of the piston rod of the hydraulic cylinder body can be directly captured without depending on an external electronic sensor or shutdown detection, the real-time monitoring of the leakage rate is realized, the piston rod is stably fixed through the clamping frame in the positioning mechanism, and the detection accuracy is improved. In combination with limitation of the limiting mechanism on the moving track of the lifting rod, interference of vibration of a hydraulic system or oil pollution on detection precision is effectively avoided, and the problem that a traditional detection device cannot quantify the leakage degree is solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder detection technology, and in particular to a hydraulic cylinder detection device that can detect leakage in real time. Background Technology

[0002] Hydraulic cylinder leakage detection refers to the technical means of monitoring the leakage of internal media caused by seal failure or component wear during the operation of hydraulic cylinders. Its core is to capture abnormal changes in hydraulic cylinder pressure or the amount of media loss through specific methods, with the aim of timely detection of potential faults and assessment of system reliability, and ultimately ensuring the safe and stable operation of hydraulic transmission systems.

[0003] Current methods for detecting hydraulic cylinder leaks typically involve observing oil level changes after shutdown or indirectly determining the leak status using external sensors. Traditional methods require interrupting equipment operation and cannot provide real-time feedback on the leak status. Electronic sensor monitoring methods suffer from complex structures, require additional power supplies, and are susceptible to interference from hydraulic system vibrations. Over long-term use, sensor elements are prone to oil contamination, leading to decreased sensitivity. While some mechanical detection devices can make basic judgments, they cannot quantify the degree of leakage, making it difficult for operators to detect early leaks in a timely manner. This increases the danger during equipment operation and is detrimental to use.

[0004] Therefore, those skilled in the art have provided a hydraulic cylinder detection device capable of real-time detection of leakage to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the problem that traditional hydraulic cylinder detection devices cannot detect minute leaks in real time, thus preventing workers from promptly identifying early leakage risks, this invention provides a hydraulic cylinder detection device capable of detecting leakage in real time.

[0006] This utility model provides a hydraulic cylinder detection device capable of real-time leakage detection, employing the following technical solution:

[0007] A hydraulic cylinder detection device capable of real-time leakage detection includes a hydraulic cylinder body. A locking assembly is provided at the bottom of the surface of the hydraulic cylinder body. A real-time detection assembly is fixedly connected to the rear side of the locking assembly. The real-time detection assembly includes a detection shell. A grating sensor is fixedly connected to the front side of the inner cavity of the detection shell. A lifting rod is fixedly connected to the detection end of the rear side of the grating sensor. The top of the lifting rod penetrates the detection shell and is fixedly connected to a positioning mechanism. Limiting mechanisms are fixedly connected to both sides of the lifting rod. The opposite sides of the two limiting mechanisms are fixedly connected to the inner wall of the detection shell. The locking assembly includes a fixing frame. The rear side of the fixing frame is fixedly connected to the detection shell. Limiting frames are fixedly connected to the front sides of both sides of the inner cavity of the fixing frame. A mounting seat is movably connected between the front and rear sides of the inner cavity of the limiting frame. A screw is movably connected to the opposite side of the two mounting seats. A fixing sleeve is provided between the two screws. The side of the screw away from the mounting seat extends into the inner cavity of the fixing sleeve.

[0008] By adopting the above technical solution, when the hydraulic cylinder body is supporting the operation, the grating sensor can detect the small displacement of the piston rod of the hydraulic cylinder body. By calculating the detected displacement distance and displacement speed data, the minute leakage of the hydraulic cylinder body can be detected. The lifting rod can transmit the displacement transmitted from the positioning mechanism to the grating sensor. The positioning mechanism is used to fix the piston rod of the hydraulic cylinder body. The limiting mechanism can limit the lifting rod so that it can move up and down smoothly and avoid deviation during its movement, which would affect the accuracy of the detection data. The fixing frame can fix the detection shell on the surface of the hydraulic cylinder body. The mounting base and screw can cooperate with the fixing sleeve to tighten the fixing frame, thereby improving the stability of the installation and fixing of the detection shell.

[0009] Optionally, the positioning mechanism includes a positioning shell, the bottom of which is fixedly connected to a lifting rod. A motor is fixedly connected to the bottom of the inner cavity of the positioning shell. Threaded rods are fixedly connected to both sides of the motor output end. Telescopic rods are threadedly connected to the surface of the threaded rods. Mounting plates are fixedly connected to opposite sides of the two telescopic rods through the positioning shell. Clamping frames are fixedly connected to opposite sides of the two mounting plates.

[0010] By adopting the above technical solution, the motor is used to control the rotation of the threaded rod, and the telescopic rod can adjust the position of the two mounting plates and the clamping frame through the internal thread and the threaded rod. The two clamping frames can clamp and fix the piston rod of the hydraulic cylinder body, so that the lifting rod and the grating sensor can accurately detect and record the displacement of the piston rod.

[0011] Optionally, a sliding rod is fixedly connected to the rear side between the two sides of the inner cavity of the positioning shell, and sliding sleeves are slidably connected to both sides of the surface of the sliding rod, with the front side of the sliding sleeves fixedly connected to the telescopic rod.

[0012] By adopting the above technical solution, the sliding rod and sliding sleeve can limit the two telescopic rods, enabling them to move stably left and right and preventing them from rotating with the threaded rod.

[0013] Optionally, the limiting mechanism includes two limiting slides, with opposite sides of the two limiting slides fixedly connected to the inner wall of the detection shell. The inner wall of the limiting slides is slidably connected to a limiting block, and opposite sides of the two limiting blocks are fixedly connected to a lifting rod.

[0014] By adopting the above technical solution, the limiting slide and the limiting block can limit the lifting rod, enabling it to move up and down smoothly, preventing it from deviating during movement, and improving the accuracy of its detection of leakage in the hydraulic cylinder body.

[0015] Optionally, the side of the screw away from the fixed sleeve is movably connected to the mounting base via a bearing, the inner wall of the fixed sleeve is provided with a thread for use with the screw, and the surface of the fixed sleeve is fixedly connected with anti-slip ridges.

[0016] By adopting the above technical solutions, the bearing is used to improve the stability of the screw rotation, the thread enables the screw to be threadedly connected to the inner wall of the fixed sleeve, and the anti-slip ridge makes it easier for the operator to rotate the fixed sleeve.

[0017] Optionally, limit protrusions are fixedly connected to both sides of the inner cavity of the fixed frame, and pull blocks are fixedly connected to both sides of the fixed frame.

[0018] By adopting the above technical solution, the limiting protrusion can increase the fixing effect of the fixing frame on the hydraulic cylinder body, and the pull block makes it easy for the operator to pull the two sides of the fixing frame, so that it deforms and separates from the surface of the hydraulic cylinder body.

[0019] Optionally, a data display screen is fixedly connected to the rear side of the detection shell, and handles are fixedly connected to both sides of the detection shell.

[0020] By adopting the above technical solution, the data display screen can display the displacement distance and displacement time of the detected hydraulic cylinder body piston rod, and at the same time display the calculated minute leakage amount. The handle makes it easy for staff to install or remove the detection shell.

[0021] Optionally, the inner wall of the fixing frame is provided with anti-slip texture, and the fixing frame is U-shaped.

[0022] By adopting the above technical solution, the anti-slip texture can increase the anti-slip effect of the fixing frame, and the U-shaped fixing frame can fit the surface of the hydraulic cylinder body.

[0023] In summary, this utility model has the following beneficial effects:

[0024] 1. This utility model, through a real-time detection component, utilizes the cooperation of a grating sensor and a lifting rod to directly capture minute displacement changes of the piston rod of the hydraulic cylinder body. It eliminates the need for external electronic sensors or system shutdown detection, enabling real-time monitoring of leakage. The piston rod is stably fixed by a clamping frame in the positioning mechanism, and the lifting rod's movement trajectory is limited by a limiting mechanism, effectively preventing interference from hydraulic system vibration or oil contamination on detection accuracy. This solves the problem of traditional detection devices being unable to quantify the degree of leakage. The grating sensor has a simple structure and can operate stably for extended periods, allowing for timely identification of early, minute leakage risks and significantly improving the safety of the hydraulic system.

[0025] 2. This utility model, through its locking assembly, employs a U-shaped fixing frame and a screw locking structure, which enables the detection shell to be quickly and securely installed on the surface of hydraulic cylinder bodies of different sizes. The threaded fit design of the fixing sleeve and the screw, combined with the limiting protrusion, allows for locking without relying on external tools, ensuring a rigid connection between the detection device and the hydraulic cylinder body during the detection process. This, in turn, guarantees the continuity and accuracy of the data collected by the grating sensor, providing a reliable basis for real-time calculation of leakage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a rear view of the structure of this utility model.

[0028] Figure 3 This is an exploded view of the locking component of this utility model.

[0029] Figure 4 This is a partial cross-sectional view of the detection shell of this utility model.

[0030] Figure 5 This is a partial cross-sectional view of the positioning shell of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Hydraulic cylinder body; 2. Real-time detection component; 21. Detection housing; 22. Grating sensor; 23. Lifting rod; 24. Positioning mechanism; 25. Limiting mechanism; 3. Locking component; 31. Fixing frame; 32. Limiting frame; 33. Mounting base; 34. Screw; 35. Fixing sleeve; 241. Positioning housing; 242. Motor; 243. Threaded rod; 244. Telescopic rod; 245. Mounting plate; 246. Clamping frame; 251. Limiting slide; 252. Limiting block; 4. Limiting protrusion; 5. Data display screen. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] Example 1:

[0035] Please refer to Figure 1-5 A hydraulic cylinder detection device capable of real-time leakage detection includes a hydraulic cylinder body 1. A locking component 3 is provided at the bottom of the surface of the hydraulic cylinder body 1. A real-time detection component 2 is fixedly connected to the rear side of the locking component 3. The real-time detection component 2 includes a detection shell 21. A grating sensor 22 is fixedly connected to the front side of the inner cavity of the detection shell 21. A lifting rod 23 is fixedly connected to the detection end of the grating sensor 22. The top of the lifting rod 23 penetrates the detection shell 21 and is fixedly connected to a positioning mechanism 24. Limiting mechanisms are fixedly connected to both sides of the lifting rod 23. 25. The two limiting mechanisms 25 are fixedly connected to the inner wall of the detection shell 21 on opposite sides. The locking assembly 3 includes a fixing frame 31. The rear side of the fixing frame 31 is fixedly connected to the detection shell 21. Limiting frames 32 are fixedly connected to the front sides of both sides of the inner cavity of the fixing frame 31. Mounting seats 33 are movably connected between the front and rear sides of the inner cavity of the limiting frames 32. Screws 34 are movably connected to the opposite sides of the two mounting seats 33. A fixing sleeve 35 is provided between the two screws 34. The side of the screw 34 away from the mounting seat 33 extends into the inner cavity of the fixing sleeve 35.

[0036] In this embodiment: when the hydraulic cylinder body 1 is supporting the operation, the grating sensor 22 can detect the small displacement of the piston rod of the hydraulic cylinder body 1. By calculating the detected displacement distance and displacement speed data, the small leakage of the hydraulic cylinder body 1 can be detected. The lifting rod 23 can transmit the displacement transmitted from the positioning mechanism 24 to the grating sensor 22. The positioning mechanism 24 is used to fix the piston rod of the hydraulic cylinder body 1. The limiting mechanism 25 can limit the lifting rod 23 so that it can move up and down smoothly and avoid deviation during its movement, which would affect the accuracy of the detection data. The fixing frame 31 can fix the detection shell 21 on the surface of the hydraulic cylinder body 1. The mounting base 33 and the screw 34 can cooperate with the fixing sleeve 35 to tighten the fixing frame 31, thereby improving the stability of the installation and fixing of the detection shell 21.

[0037] Example 2:

[0038] Reference Figure 1-5The positioning mechanism 24 includes a positioning shell 241. The bottom of the positioning shell 241 is fixedly connected to the lifting rod 23. A motor 242 is fixedly connected to the bottom of the inner cavity of the positioning shell 241. Threaded rods 243 are fixedly connected to both sides of the output end of the motor 242. Telescopic rods 244 are threadedly connected to the surface of the threaded rods 243. The opposite sides of the two telescopic rods 244 penetrate the positioning shell 241 and are fixedly connected to mounting plates 245. Clamping frames 246 are fixedly connected to the opposite sides of the two mounting plates 245. A sliding rod is fixedly connected to the rear side between the two sides of the inner cavity of the positioning shell 241. Sliding sleeves are slidably connected to both sides of the sliding rod surface. The front side of the sliding sleeves is fixedly connected to the telescopic rod 244. The limiting mechanism 25 includes two limiting slides 251. The opposite side of 251 is fixedly connected to the inner wall of the detection shell 21. The inner wall of the limiting slide 251 is slidably connected to the limiting block 252. The opposite side of the two limiting blocks 252 is fixedly connected to the lifting rod 23. The side of the screw 34 away from the fixing sleeve 35 is movably connected to the mounting base 33 through a bearing. The inner wall of the fixing sleeve 35 is provided with a thread for use with the screw 34. The surface of the fixing sleeve 35 is fixedly connected with anti-slip ridges. The two sides of the inner cavity of the fixing frame 31 are fixedly connected to the limiting ridges 4. The two sides of the fixing frame 31 are fixedly connected to the pull block. The rear side of the detection shell 21 is fixedly connected to the data display screen 5. The two sides of the detection shell 21 are fixedly connected to the handle. The inner wall of the fixing frame 31 is provided with anti-slip texture. The shape of the fixing frame 31 is U-shaped.

[0039] In this embodiment: the motor 242 controls the rotation of the threaded rod 243. The telescopic rod 244, through its internal threads, engages with the threaded rod 243 to adjust the positions of the two mounting plates 245 and the clamping frame 246. The two clamping frames 246 clamp and fix the piston rod of the hydraulic cylinder body 1, enabling the lifting rod 23 and the grating sensor 22 to accurately detect and record the displacement of the piston rod. The sliding rod and sliding sleeve limit the two telescopic rods 244, allowing them to move stably left and right and preventing them from rotating with the threaded rod 243. The limiting slide 251 and the limiting block 252 limit the lifting rod 23, allowing it to move smoothly up and down and preventing it from deviating during movement, thus improving its position on the hydraulic cylinder body 1. The accuracy of leak detection is enhanced by the bearing, which improves the stability of the screw 34 rotation. The thread allows the screw 34 to be threadedly connected to the inner wall of the fixed sleeve 35. The anti-slip ridges facilitate the rotation of the fixed sleeve 35 by the operator. The limiting ridge 4 increases the fixing effect of the fixed frame 31 on the hydraulic cylinder body 1. The pull block allows the operator to pull the two sides of the fixed frame 31 to deform it and detach it from the surface of the hydraulic cylinder body 1. The data display screen 5 displays the displacement distance and displacement time of the piston rod of the hydraulic cylinder body 1, and also displays the calculated amount of minute leakage. The handle facilitates the installation or removal of the detection shell 21 by the operator. The anti-slip texture increases the anti-slip effect of the fixed frame 31. The U-shaped fixed frame 31 fits snugly against the surface of the hydraulic cylinder body 1.

[0040] The implementation principle of this utility model is as follows: In use, the U-shaped fixing frame 31 is fitted onto the surface of the hydraulic cylinder body 1 to be tested. By making the fixing sleeve 35 and the two screws 34 horizontal, and inserting the two screws 34 into the fixing sleeve 35, the fixing sleeve 35 is rotated to tighten the two screws 34, thereby controlling the fixing frame 31 to install the detection shell 21 on the surface of the hydraulic cylinder body 1. After the locking assembly 3 has completed the installation of the detection shell 21, the motor 242 in the positioning mechanism 24 is started. The motor 242 drives the threaded rods 243 on both sides to rotate synchronously, thereby driving the telescopic rod 244 to move laterally along the slide rod. The clamping frame 246 clamps the piston rod of the hydraulic cylinder body 1. When the hydraulic cylinder body 1 works and lifts the equipment, the grating sensor 22 works in conjunction with the lifting rod 23 to detect the minute displacement of the piston rod. The limiting block 252 guides the lifting rod 23 to form a vertical displacement within the limiting frame 32. The grating sensor 22 collects displacement data in real time and transmits it to the data display screen 5. By continuously monitoring the piston rod displacement and the rate of change, the leakage is calculated, realizing real-time leakage detection without stopping the machine. This allows early minute leakage risks to be identified in time, significantly improving the safety of the hydraulic system operation.

[0041] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A hydraulic cylinder detection device capable of real-time leakage detection, comprising a hydraulic cylinder body (1), characterized in that: A locking component (3) is provided at the bottom of the surface of the hydraulic cylinder body (1), and a real-time detection component (2) is fixedly connected to the rear side of the locking component (3). The real-time detection component (2) includes a detection shell (21). A grating sensor (22) is fixedly connected to the front side of the inner cavity of the detection shell (21). A lifting rod (23) is fixedly connected to the detection end of the grating sensor (22) at the rear side. The top of the lifting rod (23) passes through the detection shell (21) and is fixedly connected to a positioning mechanism (24). Limiting mechanisms (25) are fixedly connected to both sides of the lifting rod (23). The opposite sides of the two limiting mechanisms (25) are fixedly connected to the inner wall of the detection shell (21). The locking assembly (3) includes a fixed frame (31), the rear side of which is fixedly connected to the detection shell (21). Limiting frames (32) are fixedly connected to the front sides of both sides of the inner cavity of the fixed frame (31). Mounting seats (33) are movably connected between the front and rear sides of the inner cavity of the limiting frames (32). Screws (34) are movably connected to the opposite sides of the two mounting seats (33). A fixing sleeve (35) is provided between the two screws (34). The side of the screw (34) away from the mounting seat (33) extends into the inner cavity of the fixing sleeve (35).

2. The hydraulic cylinder detection device capable of real-time leakage detection according to claim 1, characterized in that: The positioning mechanism (24) includes a positioning shell (241), the bottom of which is fixedly connected to a lifting rod (23). A motor (242) is fixedly connected to the bottom of the inner cavity of the positioning shell (241). Threaded rods (243) are fixedly connected to both sides of the output end of the motor (242). Telescopic rods (244) are threadedly connected to the surface of the threaded rods (243). The opposite sides of the two telescopic rods (244) penetrate the positioning shell (241) and are fixedly connected to mounting plates (245). Clamping frames (246) are fixedly connected to the opposite sides of the two mounting plates (245).

3. The hydraulic cylinder detection device capable of real-time leakage detection according to claim 2, characterized in that: A sliding rod is fixedly connected to the rear side between the two sides of the inner cavity of the positioning shell (241). Sliding sleeves are slidably connected to both sides of the surface of the sliding rod, and the front side of the sliding sleeves is fixedly connected to the telescopic rod (244).

4. The hydraulic cylinder detection device capable of real-time leakage detection according to claim 1, characterized in that: The limiting mechanism (25) includes two limiting slides (251), and the opposite sides of the two limiting slides (251) are fixedly connected to the inner wall of the detection shell (21). The inner wall of the limiting slides (251) is slidably connected to limiting blocks (252), and the opposite sides of the two limiting blocks (252) are fixedly connected to the lifting rod (23).

5. A hydraulic cylinder detection device capable of real-time leakage detection according to claim 1, characterized in that: The screw (34) is connected to the mounting base (33) via a bearing on the side away from the fixing sleeve (35). The inner wall of the fixing sleeve (35) is provided with a thread that mates with the screw (34). The surface of the fixing sleeve (35) is fixedly connected with anti-slip ridges.

6. A hydraulic cylinder detection device capable of real-time leakage detection according to claim 1, characterized in that: Limiting protrusions (4) are fixedly connected to both sides of the inner cavity of the fixed frame (31), and pull blocks are fixedly connected to both sides of the fixed frame (31).

7. A hydraulic cylinder detection device capable of real-time leakage detection according to claim 1, characterized in that: A data display screen (5) is fixedly connected to the rear side of the detection shell (21), and a handle is fixedly connected to both sides of the detection shell (21).

8. A hydraulic cylinder detection device capable of real-time leakage detection according to claim 1, characterized in that: The inner wall of the fixing frame (31) is provided with anti-slip texture, and the fixing frame (31) is U-shaped.

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