Rubber sealing ring sealing performance detection device

Abstract

The utility model relates to the technical field of rubber sealing ring detection, in particular to a sealing performance detection device for a rubber sealing ring. The device comprises an upper pressing block, a lower pressing block correspondingly arranged below the lower pressing block, a sealing chamber fixedly connected to the upper pressing block and a lifting mechanism used for driving the upper pressing block to ascend and descend, a one-way valve is fixedly connected to an air inlet of the sealing chamber, and the one-way valve is connected with an air pump through an air conveying pipe. The exhaust port of the sealing chamber is fixedly connected with an electric valve for blocking the exhaust port of the sealing chamber, and an air pressure sensor is fixedly connected inside the sealing chamber; the lower pressing block is detachably connected with a core mold, and the core mold is provided with a circular groove used for containing a sealing ring. A through hole used for being communicated with the sealing chamber is formed in the upper pressing block, and an open groove corresponding to the through hole is formed in the core mold. According to the device, the sealing performance test result of the sealing ring can be fed back through the air pressure sensor, and visual detection feedback can be provided for operators; the mandrel can be replaced according to the model of the sealing ring, and the device can be suitable for sealing rings of different models.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber sealing ring detection technical field, concretely is a kind of rubber sealing ring tightness detection device. BACKGROUND

[0002] Rubber sealing ring is by one or several parts consisting of annular cover, fixed in the bearing one sleeve or washer and with another sleeve or washer contact or form narrow labyrinth gap, prevent lubricating oil leakage and foreign matter invasion.

[0003] The quality of rubber sealing ring is related to the use quality of subsequent sealing equipment, so it is necessary to carry out quality inspection operation on the produced sealing ring, and the quality of rubber ring production unified batch is basically similar, so sampling detection is needed.In the traditional detection, general light appearance detection is carried out manually, and small gap cannot be observed by naked eye, so that the detection result is not intuitive and accurate, and the absolute sealing property of rubber sealing ring cannot be guaranteed

[0004] Chinese patent CN202320980359.4 discloses "a rubber sealing ring tightness detection tool", publication number CN219675375U, the device includes upper clamp block and lower clamp block, the upper clamp block and the lower clamp block are symmetrically provided with two first annular grooves on the side close to each other, the lower clamp block is provided with a second annular groove on the periphery close to the first annular groove, the upper clamp block is provided with an annular through hole above the second annular groove, four bolts are screwed on the upper end of the upper clamp block, the upper end of the upper clamp block is provided with a cover plate, four bolts penetrate the outer surface of the cover plate, and the four bolts are respectively screwed with the cover plate, the upper clamp block and the cover plate are fixedly provided with a flexible film, the lower clamp block is provided with an L-shaped through hole close to the inner circle of the first annular groove, and the lower clamp block is provided with a clamping mechanism. But the device has some defects: the device needs to reflect the sealing property of rubber sealing ring through flexible film, the flexible film has poor durability and needs to be replaced frequently;The reflection of flexible film is not intuitive, cannot give intuitive detection feedback to operator, and cannot accurately measure the sealing property of sealing ring. UTILITY MODEL CONTENTS

[0005] In order to solve the problems of the prior art, the utility model provides a rubber sealing ring tightness detection device, which can feed back the sealing ring tightness test result through air pressure sensor, give intuitive detection feedback to operator, and accurately measure the sealing property of sealing ring.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a rubber seal ring leakproofness detection device, including upper pressure block, corresponding lower pressure block who sets in the lower pressure block, fixed connection in the upper pressure block sealed chamber, be used for driving the lifting mechanism of upper pressure block elevating, the air inlet of sealed chamber is fixedly connected one way valve, one way valve is connected gas pump through gas pipe, the exhaust port of sealed chamber is fixedly connected electric valve who is used for plugging the exhaust port of sealed chamber, sealed chamber inside fixedly connected gas pressure sensor, the core mould of detachable type is connected on the lower pressure block, the circular groove of being used for placing seal ring is opened on the core mould, the through -hole of being used for intercommunication sealed chamber is opened on the upper pressure block, the opening slot corresponding with through -hole is opened on the core mould.

[0007] Adopt the above structure design, can seal the leakproofness test result of ring through gas pressure sensor to carry out feedback, can intuitive detection feedback to operating personnel, can accurately measure the leakproofness of seal ring.

[0008] Preferably, the lifting mechanism includes a support seat fixedly connected to the lower pressure block, a first screw and a second screw rotatably connected to the support seat, a first slider threadedly sleeved on the first screw, a second slider threadedly sleeved on the second screw, a first synchronous pulley fixedly connected to the first screw, a second synchronous pulley fixedly connected to the second screw, a synchronous belt commonly sleeved on the first and second synchronous pulleys, and a motor drivingly connected to the first synchronous pulley, the first and second sliders being fixedly connected to the upper pressure block, and the motor being fixedly connected to the support seat.

[0009] Adopt the above structure design, can more stably and accurately move the upper pressure block up and down.

[0010] Preferably, a micro switch is fixedly connected to the lower pressure block, and the micro switch is electrically connected to the motor.

[0011] Adopt the above structure design, when the upper pressure block triggers the micro switch, the motor stops working, and the upper pressure block stops moving downward, thereby avoiding excessive extrusion of the upper pressure block on the lower pressure block and causing damage.

[0012] Preferably, a third screw is fixedly connected to the core mould, and a threaded hole matched with the third screw is formed in the lower pressure block.

[0013] Adopt the above structure design, the core mould is connected to the lower pressure block through the threaded structure, and the connection is more stable.

[0014] Preferably, a positioning rod is fixedly connected to the core mould, positioning blocks are fixedly connected to the circumferential wall of the positioning rod, the positioning blocks are arranged along the circumferential direction of the positioning rod, and a positioning hole matched with the positioning rod and the positioning blocks is formed in the lower pressure block.

[0015] The above structural design facilitates quick replacement and installation of the core mold.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This device can provide feedback on the sealing performance test results of the sealing ring through a pressure sensor, giving operators intuitive feedback and accurately measuring the sealing performance of the sealing ring. Moreover, this device has high applicability, as the mandrel can be changed according to the model of the sealing ring, making it suitable for different models of sealing rings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model;

[0020] Figure 3 This utility model Figure 1 A cross-sectional structural diagram;

[0021] Figure 4 This is a schematic diagram of the core mold according to Embodiment 1 of this utility model;

[0022] Figure 5 This is a schematic diagram of the core mold in Embodiment 2 of this utility model. Detailed Implementation

[0023] Example 1:

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a technical solution: a rubber sealing ring sealing performance testing device, including an upper pressure block 1, a lower pressure block 2 correspondingly disposed below the upper pressure block 1, a sealing chamber 3 fixedly connected to the upper pressure block 1, and a lifting mechanism for driving the upper pressure block 1 to rise and fall. A one-way valve 31 is fixedly connected to the air inlet of the sealing chamber 3, and the one-way valve 31 is connected to an air pump 33 through an air supply pipe 32. An electric valve 34 for blocking the air outlet of the sealing chamber 3 is fixedly connected to the exhaust outlet of the sealing chamber 3. A pressure sensor 35 is fixedly connected inside the sealing chamber 3. A core mold 4 is detachably connected to the lower pressure block 2, and a circular groove 41 for placing the sealing ring is opened on the core mold 4. A through hole 11 for communicating with the sealing chamber 3 is opened on the upper pressure block 1, and an opening groove 42 corresponding to the through hole 11 is opened on the core mold 4.

[0025] The lifting mechanism includes a support base 5 fixedly connected to the lower pressure block 2, a first screw 51 and a second screw 52 rotatably connected to the support base 5, a first slider 61 threadedly sleeved on the first screw 51, a second slider 62 threadedly sleeved on the second screw 52, ​​a first synchronous pulley 71 fixedly connected to the first screw 51, a second synchronous pulley 72 fixedly connected to the second screw 52, ​​a synchronous belt 73 jointly sleeved on the first synchronous pulley 71 and the second synchronous pulley 72, and a motor 74 drivenly connected to the first synchronous pulley 71. The first slider 61 and the second slider 62 are both fixedly connected to the upper pressure block 1, and the motor 74 is fixedly connected to the support base 5. The first screw 51 and the second screw 52 are symmetrically arranged on both sides of the upper pressure block. Four support columns 501 are fixedly connected to the support base 5. The upper end of the support column 501 is fixedly connected to the square frame 502. The upper ends of the first screw 51 and the second screw 52 are rotatably connected to the square frame 502. The guide block 503 is fixedly connected to the upper pressure block 1. The guide rod 504 passes through the guide block 503. The lower end of the guide rod 504 is fixedly connected to the support base 5, and the upper end of the guide rod 504 is fixedly connected to the square frame 502.

[0026] A display screen 91 is fixedly connected to the support column 501. The display screen 91 is electrically connected to the air pressure sensor 35. An operation panel 9 is fixedly connected to the support base 5. The air pump 33, electric valve 34, and motor 74 are all electrically connected to the operation panel 9. A second button 92 is provided on the operation panel 9. When the operator presses the second button 92, the motor 74 rotates in the forward direction and the upper pressure block moves downward. A third button 93 is provided on the operation panel 9. When the operator presses the third button 93, the motor 74 rotates in the reverse direction and the upper pressure block moves upward. A fourth button 94 is provided on the operation panel 9. When the operator presses the fourth button 94, the air pump 33 starts. A fifth button 95 is provided on the operation panel 9. When the operator presses the fifth button 95, the electric valve 34 starts to block the exhaust port of the sealing chamber 3.

[0027] A micro switch 8 is fixedly connected to the lower pressure block 2, and the micro switch 8 is electrically connected to the motor 74.

[0028] The core mold 4 is fixedly connected to the third screw 43, and the lower pressure block 2 has a threaded hole that matches the third screw 43.

[0029] Working principle: When inspecting the same batch of sealing rings, the operator installs the corresponding model core mold 4 on the lower pressure block 2. Then, the operator places the sealing ring on the circular groove of the core mold 4. The operator then presses the second button 92, the motor 74 rotates forward, and the upper pressure block 1 moves downward. When the upper pressure block 1 triggers the micro switch 8, the motor 74 stops running. At this time, the upper pressure block 1 presses the sealing ring. Then, the operator presses the fifth button 95, the electric valve 34 starts to block the exhaust port of the sealing chamber 3. Then, the operator presses the fourth button 94, the air pump 33 starts. When the air pressure value on the display screen 91 reaches... After a certain value is reached, stop the air pump 33 and wait for the air pressure to stabilize. Record the air pressure value on the display screen 91 at this time. If the air pressure value on the display screen 91 does not change after a period of time, it means that the sealing ring meets the requirements. If the air pressure value on the display screen 91 changes significantly, it means that the sealing ring does not meet the requirements. Then, the operator presses the fifth button 95 again, and the electric valve 34 no longer blocks the exhaust port of the sealing chamber 3. Then, the operator presses the third button 93, and the motor 74 rotates in the reverse direction. The upper pressure block moves upward to the initial position. The operator removes the sealing ring and performs the next test.

[0030] Example 2:

[0031] See Figure 5 Example 2 is modified from Example 1. A positioning rod 44 is fixedly connected to the core mold 4, and a positioning block 45 is fixedly connected to the circumferential wall of the positioning rod 44. Multiple positioning blocks 45 are provided and arranged along the circumferential direction of the positioning rod 44. Positioning holes matching the positioning rod 44 and the positioning block 45 are opened on the lower pressing block 2. Other parts are the same as in Example 1.

[0032] Working principle: When inspecting the same batch of sealing rings, the operator inserts the corresponding model core mold 4 onto the lower pressure block 2. Then, the operator places the sealing ring in the circular groove of the core mold 4. The operator then presses the second button 92, causing the motor 74 to rotate forward and the upper pressure block 1 to move downward. When the upper pressure block 1 triggers the micro switch 8, the motor 74 stops running. At this point, the upper pressure block 1 is pressing down on the sealing ring. Then, the operator presses the fifth button 95, activating the electric valve 34 to block the exhaust port of the sealing chamber 3. Then, the operator presses the fourth button 94, activating the air pump 33. When the air pressure value on the display screen 91 reaches... After a certain value is reached, stop the air pump 33 and wait for the air pressure to stabilize. Record the air pressure value on the display screen 91 at this time. If the air pressure value on the display screen 91 does not change after a period of time, it means that the sealing ring meets the requirements. If the air pressure value on the display screen 91 changes significantly, it means that the sealing ring does not meet the requirements. Then, the operator presses the fifth button 95 again, and the electric valve 34 no longer blocks the exhaust port of the sealing chamber 3. Then, the operator presses the third button 93, and the motor 74 rotates in the reverse direction. The upper pressure block moves upward to the initial position. The operator removes the sealing ring and performs the next test.

[0033] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model's implementation.

[0034] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A rubber sealing ring sealing detection device, comprising an upper pressing block (1), a lower pressing block (2) arranged below the upper pressing block (1) correspondingly, a sealing chamber (3) fixedly connected to the upper pressing block (1), and a lifting mechanism for driving the upper pressing block (1) to lift, characterized in that: The air inlet of the sealing chamber (3) is fixedly connected with a one-way valve (31), the one-way valve (31) is connected with a gas pump (33) through a gas pipe (32), the air outlet of the sealing chamber (3) is fixedly connected with an electric valve (34) for blocking the air outlet of the sealing chamber (3), and the sealing chamber (3) is fixedly connected with a gas pressure sensor (35) inside; the lower pressing block (2) is detachably connected with a core mold (4), and the core mold (4) is provided with a circular groove (41) for placing a sealing ring; the upper pressing block (1) is provided with a through hole (11) for communicating with the sealing chamber (3), and the core mold (4) is provided with an opening groove (42) corresponding to the through hole (11).

2. The rubber seal ring leak detection device of claim 1, wherein: The lifting mechanism comprises a support seat (5) fixedly connected to the lower pressing block (2), a first screw rod (51) and a second screw rod (52) rotatably connected to the support seat (5), a first sliding block (61) threadedly sleeved on the first screw rod (51), a second sliding block (62) threadedly sleeved on the second screw rod (52), a first synchronous pulley (71) fixedly connected to the first screw rod (51), a second synchronous pulley (72) fixedly connected to the second screw rod (52), a synchronous belt (73) commonly sleeved on the first synchronous pulley (71) and the second synchronous pulley (72), and a motor (74) in transmission connection with the first synchronous pulley (71), wherein the first sliding block (61) and the second sliding block (62) are fixedly connected to the upper pressing block (1), and the motor (74) is fixedly connected to the support seat (5).

3. The rubber seal ring leak detection device of claim 2, wherein: The lower pressing block (2) is fixedly connected with a micro switch (8), and the micro switch (8) is in electrical connection with the motor (74).

4. The device for detecting the sealing property of a rubber sealing ring according to any one of claims 1 to 3, characterized in that: The core mold (4) is fixedly connected with a third screw rod (43), and the lower pressing block (2) is provided with a threaded hole matched with the third screw rod (43).

5. The device for testing the sealing property of a rubber sealing ring according to any one of claims 1 to 3, characterized in that: The core mold (4) is fixedly connected with a positioning rod (44), and the circumferential wall of the positioning rod (44) is fixedly connected with positioning blocks (45), a plurality of positioning blocks (45) are arranged along the circumferential direction of the positioning rod (44), and the lower pressing block (2) is provided with positioning holes matched with the positioning rod (44) and the positioning blocks (45).

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