Sealing performance test tool suitable for hydraulic oil cylinder sealing ring

Abstract

The utility model relates to a sealing performance test tool suitable for a hydraulic oil cylinder sealing ring, a handle (1) is fixedly connected to the rear portion of a sealing performance test tool frame (2), rectangular through holes are formed in the front and the back of the upper surface of the sealing performance test tool frame (2), and a first cotton cloth reel (5) and a second cotton cloth reel (6) are installed on the upper surface of the sealing performance test tool frame (2) through rotating shafts with damping bearings respectively. One end of a rotating shaft provided with the first cotton cloth reel (5) and the second cotton cloth reel (6) penetrates through the side edge of the sealing testing tool frame (2) and is fixedly connected with the rocker arm connector (3), the rocker arm (4) is connected to a hexagonal head of the rocker arm connector (3) in a sleeved mode, the testing terminal (7) is fixedly installed on the front portion of the sealing testing tool frame (2), and the testing cloth supporting rollers (8) are installed on the upper portion and the lower portion of the second cotton cloth reel (6) through supports. According to the utility model, hydraulic oil leaked from a gap can be quickly found at a detection station, and the hydraulic oil can be effectively prevented from staining hands.

Description

Technical Field

[0001] The utility model relates to hydraulic oil cylinder quality inspection equipment, in particular to a sealing test tool suitable for a hydraulic oil cylinder sealing ring. Background Art

[0002] Hydraulic cylinders are used in many fields. After the production of hydraulic cylinders, they need to be quality inspected. The current quality inspection requires connecting the hydraulic cylinders through special pressurizing equipment, and then pressurizing the cylinders to 20 MPa. Finally, the welds and interfaces are manually and visually inspected for oil leaks. However, since the visible area is very small when hydraulic oil leaks in some tiny gaps, these gaps will be missed by visual and manual inspections, resulting in missed inspections. At the same time, hydraulic oil is difficult to clean once it gets on your hands.

[0003] At present, the invention with patent number CN117212300A discloses a hydraulic cylinder sealing performance testing device, and particularly relates to a hydraulic cylinder sealing performance testing device; comprising a base; a support plate is installed on the rear side of the base, and two fixed plates are symmetrically installed on the front end surface of the support plate, and a fixing mechanism for limiting the movement of the hydraulic cylinder is arranged between the two fixed plates, and a detection mechanism for hydraulic cylinder sealing detection is installed on the upper end surface of the base; the detection mechanism provided by the present invention applies pressure during the extension and retraction process of the telescopic end of the hydraulic cylinder through the reaction force of the compressed No. 1 compression spring and the compression spring, and at the same time, impacts the hydraulic cylinder during the extension and retraction process through a vibration unit to cause it to vibrate, thereby simulating the working state of the hydraulic cylinder in which load and vibration exist at the same time, and performing sealing performance detection in this working state to more accurately evaluate the sealing performance and reliability of the cylinder. However, this application is mainly used to simulate the working state of the hydraulic cylinder under the simultaneous existence of load and vibration, and then visually observe whether there are continuous bubbles to determine whether the hydraulic cylinder is leaking. Although this patent is powerful, the preparation steps are cumbersome, and the problem that the hydraulic oil is contaminated on the hands is difficult to clean is not well solved. Instead, attention should be paid to cleaning the liquid medium inside the observation cylinder during use. It is not very convenient to use in conventional quality inspection stations and is only suitable for inspection work that requires more detailed data. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a sealing test tool suitable for a hydraulic cylinder sealing ring, which can quickly detect hydraulic oil leaking from a gap at a testing station and effectively prevent the hydraulic oil from getting on the hands.

[0005] In order to achieve the above-mentioned purpose, the utility model is suitable for a sealing test tool for a hydraulic cylinder sealing ring, comprising a handle, a sealing test tool frame, a rocker arm connector, a rocker arm, a cotton cloth reel 1, a cotton cloth reel 2, a test terminal, a test cloth support roller, and an arc terminal. The handle is fixedly connected to the rear of the sealing test tool frame, rectangular through holes are opened at the front and back of the upper surface of the sealing test tool frame, and the cotton cloth reel 1 and the cotton cloth reel 2 are respectively installed through a rotating shaft with a damping bearing, one end of the rotating shaft for installing the cotton cloth reel 1 and the cotton cloth reel 2 passes through the side of the sealing test tool frame and is fixedly connected to the rocker arm connector, the rocker arm is sleeved on the hexagonal head of the rocker arm connector, the test terminal is fixedly installed at the front of the sealing test tool frame, and the test cloth support roller is installed at the upper and lower parts of the cotton cloth reel 2 through a bracket, and the test cloth support roller is close to the test terminal.

[0006] In addition, the sealing test tool for the hydraulic cylinder sealing ring proposed in the above embodiment of the utility model may also have the following additional technical features:

[0007] As a further improvement of the present invention, an arc-shaped terminal is fixedly installed on the front of the sealing test tool frame.

[0008] As a further improvement of the present invention, the test terminal is made of soft rubber.

[0009] As a further improvement scheme of the utility model, the cotton cloth reel 1 includes a retractable spring top, a reel body and a fixed shaft, and concave holes with sliding grooves are provided at both ends of the reel body. One end of the fixed shaft is fixedly connected to the rocker arm connecting head, and the other end of the fixed shaft is inserted into the concave hole of the reel body. The fixed shaft is installed in the through hole on the side of the sealing test tooling frame through a bearing, and the retractable spring top is fixedly installed on the inner side of the rectangular through hole of the sealing test tooling frame, and the end of the retractable spring top is inserted into the concave hole of the reel body. The cotton cloth reel 1 and the cotton cloth reel 2 have the same structure, and the retractable spring top and the end of the fixed shaft inserted into the reel body are provided with protrusions corresponding to the concave hole sliding grooves.

[0010] As a further improvement of the utility model, the surfaces of the cotton cloth reel one and the cotton cloth reel two are wound with cotton cloth or oil-absorbing paper.

[0011] Through the above scheme, the utility model has at least the following advantages: compared with the conventional visual and hand touch inspection of oil leakage, by pressing the test terminal against the oil absorbing paper or oil absorbing cotton cloth and sliding it over the gap where the hydraulic cylinder is leaking oil, the oil leakage point can be observed in time by seeing whether the oil absorbing paper or oil absorbing cotton cloth changes color, and the hydraulic oil leaking from the gap can be quickly found at the inspection station, which can effectively prevent the hydraulic oil from getting on the hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a three-dimensional schematic diagram of a sealing test tool suitable for a hydraulic cylinder sealing ring;

[0013] Figure 2 yes Figure 1 Side view of

[0014] Figure 3 It is a cross-sectional view of a cotton cloth reel for a seal test tool for hydraulic cylinder seals;

[0015] Figure 4 It is a three-dimensional diagram of the arc terminal installed on the sealing test tool frame of the sealing test tool suitable for the hydraulic cylinder sealing ring;

[0016] Figure 5 It is a three-dimensional diagram of the working state of the sealing test tooling applicable to the sealing ring of the hydraulic cylinder;

[0017] Figure 6 It is a side view of the working state of the sealing test tool suitable for the sealing ring of the hydraulic cylinder;

[0018] In the figure: 1. handle, 2. sealing test tool frame, 3. rocker arm connector, 4. rocker arm, 5. cotton cloth reel one, 5-1. retractable spring top, 5-2. reel body, 5-3. fixed shaft, 6. cotton cloth reel two, 7. test terminal, 8. test cloth support roller, 9. arc terminal. DETAILED DESCRIPTION

[0019] The following describes the sealing test tool suitable for the sealing ring of the hydraulic cylinder of the utility model in conjunction with the accompanying drawings.

[0020] In the first embodiment of the present application, Figures 1 to 3As shown, the sealing test tool suitable for the sealing ring of the hydraulic cylinder (hereinafter referred to as "this patent") includes a handle 1, a sealing test tool frame 2, a rocker arm connector 3, a rocker arm 4, a cotton cloth reel 1 5, a cotton cloth reel 2 6, a test terminal 7, a test cloth support roller 8 and an arc terminal 9. The handle 1 is fixedly connected to the rear of the sealing test tool frame 2, and rectangular through holes are opened at the front and back of the upper surface of the sealing test tool frame 2, and the cotton cloth reel 1 5 and the cotton cloth reel 2 6 are respectively installed through a rotating shaft with a damping bearing, one end of the rotating shaft for installing the cotton cloth reel 1 5 and the cotton cloth reel 2 6 passes through the side of the sealing test tool frame 2 and is fixedly connected to the rocker arm connector 3, the rocker arm 4 is sleeved on the hexagonal head of the rocker arm connector 3, the test terminal 7 is fixedly installed at the front of the sealing test tool frame 2, and the test cloth support roller 8 is installed on the upper and lower parts of the cotton cloth reel 2 6 through brackets, and the test cloth support roller 8 is close to the test terminal 7. The cotton cloth reel 1 5 includes a retractable spring top 5-1, a reel body 5-2 and a fixed shaft 5-3. Concave holes with slide grooves are provided at both ends of the reel body 5-2. One end of the fixed shaft 5-3 is fixedly connected to the rocker arm connector 3. The other end of the fixed shaft 5-3 is inserted into the concave hole of the reel body 5-2. The fixed shaft 5-3 is installed in the through hole on the side of the sealing test fixture frame 2 through a bearing. The retractable spring top 5-1 is fixedly installed inside the rectangular through hole of the sealing test fixture frame 2. The end of the retractable spring top 5-1 is inserted into the concave hole of the reel body 5-2. The cotton cloth reel 1 5 and the cotton cloth reel 2 6 have the same structure. The retractable spring top 5-1 and the fixed shaft 5-3 are inserted into the reel body 5-2. The end is provided with a protrusion corresponding to the concave hole slide groove.

[0021] A hydraulic cylinder sealing performance testing device with invention number CN117212300A (hereinafter referred to as "this patent") is mainly used to simulate the working state of the hydraulic cylinder under the simultaneous existence of load and vibration, and then visually observe whether there are continuous bubbles to determine whether the hydraulic cylinder is leaking. Although this patent is powerful, the preparation steps are cumbersome, and the problem that the hydraulic oil is contaminated on the hands and is difficult to clean is not well solved. Instead, attention should be paid to cleaning the liquid medium inside the observation cylinder during use. It is not very convenient to use in conventional quality inspection stations and is only suitable for inspection work that requires more detailed data. This patent uses the test terminal 7 to directly extend into the gap where the hydraulic cylinder is prone to oil leakage, and checks whether the hydraulic cylinder is leaking in a timely and rapid manner by checking whether the oil-absorbing paper and the oil-absorbing cotton cloth are soaked in hydraulic oil. The hydraulic oil leaking from the gap can be quickly found at the detection station, which can effectively prevent the hydraulic oil from getting on the hands.

[0022] The structure of the second embodiment is basically the same as that of the first embodiment, except that Figure 4 As shown, the front of the sealing test tool frame 2 is fixed with an arc terminal 9. A variety of terminals can adapt to a variety of working conditions, allowing for more detailed inspections.

[0023] In order to further optimize the working efficiency of the present application and enable the staff to quickly find the oil leak point, the cotton cloth reel 1 5 and the cotton cloth reel 2 6 are wrapped with cotton cloth or oil-absorbing paper. When the cotton cloth or oil-absorbing paper is stained with hydraulic oil, it will be quickly soaked and spread rapidly under the capillary action, helping the staff to quickly find the leak. The test terminal 7 is made of soft rubber, which allows the test terminal 7 to better adapt to various gaps and improve the efficiency of sealing inspection.

[0024] When in use, install the sealing test tool suitable for the hydraulic cylinder sealing ring, install the cotton cloth or oil-absorbing paper reel on the cotton cloth reel 1 5, and then connect the other end of the cotton cloth or oil-absorbing paper to the cotton cloth reel 2 6, and the tool can be put into operation.

[0025] When the utility model is in use, the specific operations are as follows:

[0026] When using, Figure 5 and Figure 6 As shown, first, one end of the reel body 5-2 loaded with cotton cloth or oil-absorbing paper is pressed against the retractable spring head 5-1 to compress the retractable spring head 5-1 and leave space for the other end to dock with the fixed shaft 5-3, then align the reel body 5-2 with the fixed shaft 5-3, loosen the reel body 5-2, and the retractable spring head 5-1 can press against the loosened reel body 5-2 to insert the fixed shaft 5-3 into the reel body 5-2, then pull out the cotton cloth or oil-absorbing paper on the reel, pass through the outside of a test cloth support roller 8 and the test terminal 7, then pass through the outside of another test cloth support roller 8, and finally fixedly connected to the cotton cloth reel two 6, connect the rocker arm 4 to the rocker arm connector 3 of the cotton cloth reel two 6, and rotate the rocker arm 4 to tighten the cotton cloth or oil-absorbing paper between the cotton cloth reel two 6 and the cotton cloth reel one 5. Connect the quick connector of the hydraulic press to the interface of the hydraulic cylinder, look from the side, then hold the handle 1, align the test terminal 7 with the gap and welding port of the hydraulic cylinder and slide it once or twice, then pick up this patent, observe whether there is hydraulic oil soaked on the cotton cloth or oil-absorbing paper, if not, it means the test is qualified, if so, it means that the hydraulic cylinder has leakage, finally rotate the rocker arm 4, transfer the cotton cloth or oil-absorbing paper soaked with hydraulic oil to the cotton cloth reel two 6, let the new cotton cloth or oil-absorbing paper on the cotton cloth reel one 5 come to the surface of the test terminal 7, and then you can proceed with the next test.

[0027] In summary, the sealing test tool suitable for the sealing ring of the hydraulic cylinder of the embodiment of the utility model can support the oil absorbing paper or the oil absorbing cotton cloth through the test terminal 7 to slide over the gap of the hydraulic cylinder where the oil is leaking. The oil leakage point can be observed in time by seeing whether the oil absorbing paper or the oil absorbing cotton cloth changes color. The hydraulic oil leaking from the gap can be quickly found at the detection station, which can effectively prevent the hydraulic oil from getting on the hands.

[0028] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A sealing test tool for a hydraulic cylinder sealing ring, comprising a handle (1), characterized in that: The handle (1) is fixedly connected to the rear part of the sealing test tool frame (2); rectangular through holes are provided at the front and rear of the upper surface of the sealing test tool frame (2); and cotton cloth reel 1 (5) and cotton cloth reel 2 (6) are respectively installed via a rotating shaft with a damping bearing; one end of the rotating shaft for installing cotton cloth reel 1 (5) and cotton cloth reel 2 (6) passes through the side of the sealing test tool frame (2) and is fixedly connected to the rocker arm connector (3); the rocker arm (4) is sleeved on the hexagonal head of the rocker arm connector (3); a test terminal (7) is fixedly installed at the front part of the sealing test tool frame (2); and a test cloth support roller (8) is installed at the upper and lower parts of the cotton cloth reel 2 (6) via a bracket; and the test cloth support roller (8) is close to the test terminal (7).

2. The sealing test tool for the hydraulic cylinder sealing ring according to claim 1 is characterized in that: The front part of the sealing test tool frame (2) is fixedly mounted with an arc-shaped terminal (9).

3. The sealing test tool for the hydraulic cylinder sealing ring according to claim 2 is characterized in that: The test terminal (7) is made of soft rubber.

4. The sealing test tool for the hydraulic cylinder sealing ring according to claim 1 is characterized in that: The cotton cloth reel (5) comprises a retractable spring head (5-1), a reel body (5-2) and a fixed shaft (5-3), both ends of the reel body (5-2) are provided with concave holes with sliding grooves, one end of the fixed shaft (5-3) is fixedly connected to the rocker arm connector (3), and the other end of the fixed shaft (5-3) is inserted into the concave hole of the reel body (5-2), the fixed shaft (5-3) is installed in the through hole on the side of the sealing test tool frame (2) through a bearing, the retractable spring head (5-1) is fixedly installed on the inner side of the rectangular through hole of the sealing test tool frame (2), and the end of the retractable spring head (5-1) is inserted into the concave hole of the reel body (5-2), the cotton cloth reel (5) and the cotton cloth reel (6) have the same structure, and the retractable spring head (5-1) and the fixed shaft (5-3) are inserted into the reel body (5-2) One end is provided with a protrusion corresponding to the concave hole sliding groove.

5. The sealing test tool for the hydraulic cylinder sealing ring according to claim 4 is characterized in that: The surfaces of the cotton cloth reel 1 (5) and the cotton cloth reel 2 (6) are wound with cotton cloth or oil-absorbing paper.

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