Combined piston sealing performance detection device

Abstract

The utility model belongs to the technical field of piston detection, and particularly relates to a combined piston sealing performance detection device which comprises a base, the top of the base is fixedly connected with a water tank, the top of the base extends into the water tank and is fixedly connected with a fixing frame, a lifting block is arranged above the interior of the fixing frame, and the interior of the lifting block is slidably connected with a sliding frame. Clamping plates are arranged on the two sides of the bottom of the sliding frame. The utility model provides a combined piston sealing performance detection device, and solves the problems that in the prior art, when sealing performance detection is carried out on a combined piston, detection is carried out in a mode of applying air pressure, however, the detection mode needs careful observation and detection by workers, the intuition is insufficient, the detection efficiency is reduced, and the detection cost is reduced. And the detection mode is that the combined piston is detected in a static state, and a real working scene of the combined piston cannot be simulated, so that the accuracy and the preciseness of sealing detection are reduced, and the accuracy of a detection result is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to piston detection field, specifically a kind of combined piston leakproofness detection device. BACKGROUND

[0002] Combined piston (or called composite piston) is a kind of mechanical element that can integrate multiple functions or purposes in a piston body, and is widely used in hydraulic, pneumatic and internal combustion engine fields.

[0003] In the prior art, when detecting the leakproofness of combined piston, the detection is usually carried out by applying air pressure, but this detection method requires the worker to carefully observe and detect, and has poor intuitiveness, which reduces the detection efficiency, and the detection is carried out in the static state of combined piston, cannot simulate the real working scene of combined piston, reduces the precision and rigor of leakproofness detection, and thus reduces the accuracy of detection result. UTILITY MODEL CONTENTS

[0004] In view of the above problems in the prior art, the main purpose of the utility model is to provide a combined piston leakproofness detection device.

[0005] The technical scheme of the utility model is as follows: a combined piston leakproofness detection device, comprising a base, a water tank is fixedly connected to the top of the base, a fixing frame is fixedly connected to the inside of the water tank extending from the top of the base, a lifting block is arranged above the inside of the fixing frame, a sliding frame is slidably connected to the inside of the lifting block, clamping plates are arranged on the bottom of the sliding frame on both sides, a detection cylinder sleeve is arranged on the inner side of the fixing frame below the lifting block, a hose is fixedly connected to the outside of the detection cylinder sleeve extending from the bottom of the fixing frame, a transmission assembly is arranged in the fixing frame, and a clamping assembly is arranged in the sliding frame.

[0006] As a preferred embodiment, the transmission assembly comprises transmission lead screws and a transmission unit, the transmission lead screws are rotatably connected to the inside of the fixing frame on both sides, threaded blocks are fixedly connected to the outside of the transmission lead screws on both sides of the lifting block, the threaded blocks are slidably connected to the inside of the fixing frame on both sides and are threadedly connected to the outside of the corresponding transmission lead screws, first motors are fixedly connected to the inside of the fixing frame on both sides above, the output end of the first motor is fixedly connected to the corresponding transmission lead screw, sliding sleeves are fixedly connected to the outside of the transmission lead screws on the bottom of the threaded blocks, lower pressing plates are fixedly connected to the outside of the detection cylinder sleeve on both sides, the lower pressing plates are slidably connected to the inside of the fixing frame on both sides, springs are arranged between the lower pressing plates and the inner wall of the fixing frame on the outside of the transmission lead screws, and the clamping plates can reciprocate through the transmission unit.

[0007] As a preferred implementation, the transmission unit comprises a third motor fixedly connected to the top of the lifting block through a mounting block, the output end of the third motor is fixedly connected with an eccentric wheel, the outer side of the eccentric wheel is fixedly connected with a sliding shaft, the top of the lifting block is slidingly connected with a second sliding plate, the top of the second sliding plate is fixedly connected with a limiting plate, the sliding shaft is slidingly connected to the inside of the limiting plate, and the bottom of the second sliding plate extends to the inside of the lifting block and is fixedly connected with the sliding frame.

[0008] As a preferred implementation, the clamping assembly comprises a bidirectional screw rod, the bidirectional screw rod is rotationally connected to the inside of the sliding frame, the outer side of the sliding frame is fixedly connected with a second motor, the output end of the second motor extends to the inside of the sliding frame and is fixedly connected with the bidirectional screw rod, the inside of the sliding frame is slidingly connected with a first sliding plate on both sides, the two first sliding plates are respectively threadedly connected to the outer sides of the bidirectional screw rod, and the bottoms of the two first sliding plates extend to below the sliding frame and are respectively fixedly connected with the two clamping plates.

[0009] As a preferred implementation, the outside of the water tank is fixedly connected with a water outlet on the bottom side, the inside of the water outlet is provided with an electromagnetic valve, and the inner sides of the two clamping plates are fixedly connected with rubber non-slip pads.

[0010] As a preferred implementation, the first motor, the second motor, the third motor and the electromagnetic valve are electrically connected with an external controller.

[0011] The utility model discloses the beneficial effects are as follows:

[0012] The device inserts the combined piston into the inside of the detection cylinder sleeve and drives it to immerse into the inside of the water body, then injects air into the inside of the detection cylinder sleeve, if bubbles appear in the water body, it represents that the sealing test of the combined piston fails, if no bubbles appear in the water body, it represents that the sealing test of the combined piston passes, the intuitiveness and detection efficiency in the detection process are improved, and in the detection process, the sliding frame and the combined piston can be driven to reciprocate through the limiting plate and the second sliding plate, so that the combined piston does reciprocating piston motion in the inside of the detection cylinder sleeve, simulates the real working scene, effectively improves the sealing detection precision and rigor of the combined piston, and then improves the accuracy of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model makes further explanation in connection with the drawings.

[0014] Figure 1 It is the perspective view of the utility model;

[0015] Figure 2 It is the sectional view of the utility model;

[0016] Figure 3 is a sectional view of the lifting block in the utility model;

[0017] Figure 4 is a sectional view of the sliding frame in the utility model;

[0018] Figure 5 is a sectional view of the sliding frame in the utility model; Figure 2 is an enlarged view of A in the utility model.

[0019] In the figure: 1, base; 2, water tank; 3, fixed frame; 4, lifting block; 5, sliding frame; 6, clamping plate; 7, detection cylinder sleeve; 8, transmission screw; 9, first motor; 10, threaded block; 11, sliding sleeve; 12, lower pressing plate; 13, spring; 14, bidirectional screw; 15, second motor; 16, first sliding plate; 17, third motor; 18, eccentric wheel; 19, second sliding plate; 20, limiting plate; 21, water outlet; 22, hose. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figures 1-5 A combined piston sealing detection device, including base 1, the top of base 1 is fixedly connected with water tank 2, the top of base 1 extends to the inside of water tank 2 and is fixedly connected with fixed frame 3, the inside of fixed frame 3 is equipped with lifting block 4 in the upper portion, the inside of lifting block 4 is slidably connected with sliding frame 5, the bottom of sliding frame 5 is equipped with clamping plate 6 on both sides, the inside of fixed frame 3 and below lifting block 4 is equipped with detection cylinder sleeve 7, the bottom of detection cylinder sleeve 7 extends to the outside of water tank 2 and is fixedly connected with hose 22, fixed frame 3 is provided with transmission assembly, the inside of sliding frame 5 is provided with clamping assembly.

[0022] Specifically, the transmission assembly comprises transmission screws 8 and a transmission unit, the transmission screws 8 are rotationally connected to the inner sides of the fixed frame 3, the outer sides of the lifting block 4 are fixedly connected with threaded blocks 10, the two threaded blocks 10 are slidingly connected to the inner sides of the fixed frame 3 and are threadedly connected to the outer sides of the corresponding transmission screws 8, the upper sides of the inner sides of the fixed frame 3 are fixedly connected with first motors 9, the output ends of the first motors 9 are fixedly connected with the corresponding transmission screws 8, the bottoms of the two threaded blocks 10 and located at the outer sides of the transmission screws 8 are fixedly connected with sliding sleeves 11, the outer sides of the detection cylinder sleeves 7 are fixedly connected with lower pressing plates 12, the two lower pressing plates 12 are slidingly connected to the inner sides of the fixed frame 3, the outer sides of the two transmission screws 8 and located between the lower pressing plates 12 and the inner walls of the fixed frame 3 are provided with springs 13, the clamping plates 6 can reciprocate through the transmission unit, the transmission unit comprises a third motor 17, the third motor 17 is fixedly connected to the top of the lifting block 4 through a mounting block, the output end of the third motor 17 is fixedly connected with an eccentric wheel 18, one side of the outer side of the eccentric wheel 18 is fixedly connected with a sliding shaft, the top of the lifting block 4 is slidingly connected with a second sliding plate 19, the top of the second sliding plate 19 is fixedly connected with a limiting plate 20, the sliding shaft is slidingly connected to the inner side of the limiting plate 20, the bottom of the second sliding plate 19 extends to the inner side of the lifting block 4 and is fixedly connected with the sliding frame 5, the clamping assembly comprises bidirectional screws 14, the bidirectional screws 14 are rotationally connected to the inner side of the sliding frame 5, one side of the outer side of the sliding frame 5 is fixedly connected with a second motor 15, the output end of the second motor 15 extends to the inner side of the sliding frame 5 and is fixedly connected with the bidirectional screws 14, the inner sides of the sliding frame 5 are slidingly connected with first sliding plates 16, the two first sliding plates 16 are threadedly connected to the outer sides of the bidirectional screws 14, the bottoms of the two first sliding plates 16 extend to below the sliding frame 5 and are fixedly connected with the two clamping plates 6 respectively.

[0023] Through the technical scheme, when the sealing of the combined piston needs to be detected, first, the inside of the water tank 2 is filled with water, and the combined piston is held between the two clamping plates 6, then the second motor 15 is started through the external controller, so that the output end of the second motor 15 drives the bidirectional lead screw 14 to rotate, and the bidirectional lead screw 14 drives the first sliding plates 16 on both sides to move inward through the threaded connection relationship with the clamping plates 6, until the two clamping plates 6 complete clamping of the combined piston, then the first motor 9 is started through the external controller, the output end of the first motor 9 drives the corresponding transmission lead screw 8 to rotate, so that the transmission lead screw 8 drives the threaded block 10 and the lifting block 4 to descend, that is, the lifting block 4 and the clamping plate 6 drive the sliding sleeve 11 and the combined piston to descend, when the lifting block 4 drives the combined piston to move and insert into the detection cylinder sleeve 7, the sliding sleeve 11 contacts the lower pressing plate 12, then continues to descend, that is, the lower pressing plate 12 pushes the lower pressing plate 12 and the detection cylinder sleeve 7 to descend, and at the same time, the lower pressing plate 12 extrudes the spring 13, so that the detection cylinder sleeve 7 and the combined piston descend synchronously, until the detection cylinder sleeve 7 and the combined piston descend to the inside of the water tank 2 and below the water surface, then one end of the external air inlet pipe and the hose 22 are connected, and air is injected into the inside of the detection cylinder sleeve 7, if air bubbles appear in the water body, it means that the sealing test of the combined piston fails, if no air bubbles appear in the water body, it means that the sealing test of the combined piston passes, and in the detection process, the third motor 17 is started through the external controller, so that the output end of the third motor 17 drives the eccentric wheel 18 to rotate, and the eccentric wheel 18 drives the sliding shaft to slide in the inside of the limiting plate 20, so that the limiting plate 20 and the second sliding plate 19 drive the sliding frame 5 and the combined piston to reciprocate, that is, the combined piston does reciprocating piston motion in the inside of the detection cylinder sleeve 7 to simulate the real working scene, which effectively improves the sealing detection accuracy and rigor of the combined piston, and further improves the accuracy of the detection result, when the detection of the combined piston is completed, the output end of the first motor 9 is reversed through the external controller, that is, the lifting block 4 and the combined piston are lifted, and the detection cylinder sleeve 7 and the lower pressing plate 12 can also be reset under the rebound force of the spring 13, so as to facilitate the combined piston to be taken down, the device inserts the combined piston into the inside of the detection cylinder sleeve 7 and drives it to immerse in the water body, then air is injected into the inside of the detection cylinder sleeve 7, if air bubbles appear in the water body, it means that the sealing test of the combined piston fails, if no air bubbles appear in the water body, it means that the sealing test of the combined piston passes, which improves the intuitiveness and detection efficiency in the detection process, and in the detection process, the sliding frame 5 and the combined piston can be driven to reciprocate through the limiting plate 20 and the second sliding plate 19, so that the combined piston does reciprocating piston motion in the inside of the detection cylinder sleeve 7 to simulate the real working scene, which effectively improves the sealing detection accuracy and rigor of the combined piston, and further improves the accuracy of the detection result.

[0024] Specifically, one side below the outside of the water tank 2 is fixedly connected with a water outlet 21, the inside of the water outlet 21 is mounted with a solenoid valve, and the inner sides of the two clamping plates 6 are fixedly connected with rubber non-slip pads.

[0025] Through the above technical scheme, the detection water in the water tank 2 can be discharged to replace by opening the solenoid valve through the external controller, and the clamping stability of the combined piston can be further improved by the rubber non-slip pads arranged on the inner sides of the clamping plates 6.

[0026] Specifically, the first motor 9, the second motor 15, the third motor 17 and the solenoid valve are electrically connected with the external controller.

[0027] Through the above technical scheme, the first motor 9, the second motor 15, the third motor 17 and the solenoid valve can be controlled quickly by the external controller.

[0028] In use, when the combined piston needs to be sealed and detected, first fill the water tank 2 with water, and hold the combined piston between the two clamping plates 6, then start the second motor 15 through the external controller, so that the output end of the second motor 15 drives the bidirectional screw rod 14 to rotate, and the bidirectional screw rod 14 drives the two first sliding plates 16 and the clamping plates 6 to move inward through the threaded connection, until the two clamping plates 6 clamp the combined piston, then start the first motor 9 through the external controller, the output end of the first motor 9 drives the corresponding transmission screw rod 8 to rotate, so that the transmission screw rod 8 drives the threaded block 10 and the lifting block 4 to descend, that is, the lifting block 4 and the clamping plate 6 drive the sliding sleeve 11 and the combined piston to descend, when the lifting block 4 drives the combined piston to move and insert into the detection cylinder sleeve 7, the sliding sleeve 11 contacts the lower pressing plate 12, then continue to descend, that is, the lower pressing plate 12 pushes the lower pressing plate 12 and the detection cylinder sleeve 7 to descend, and at the same time, the lower pressing plate 12 extrudes the spring 13, so that the detection cylinder sleeve 7 and the combined piston descend synchronously, until the detection cylinder sleeve 7 and the combined piston descend to the inside of the water tank 2 and below the water surface, then connect the external air inlet pipe with one end of the hose 22, and inject air into the inside of the detection cylinder sleeve 7, if air bubbles appear in the water body, it means that the combined piston fails the sealing test, if no air bubbles appear in the water body, it means that the combined piston passes the sealing test, and in the detection process, start the third motor 17 through the external controller, so that the output end of the third motor 17 drives the eccentric wheel 18 to rotate, and the eccentric wheel 18 drives the sliding shaft to slide in the inside of the limiting plate 20, so that the limiting plate 20 and the second sliding plate 19 drive the sliding frame 5 and the combined piston to reciprocate, that is, the combined piston does reciprocating piston motion in the inside of the detection cylinder sleeve 7 to simulate the real working scene, effectively improving the sealing detection accuracy and rigor of the combined piston, and thus improving the accuracy of the detection result, when the combined piston detection is completed, reverse the output end of the first motor 9 through the external controller, that is, drive the lifting block 4 and the combined piston to rise, and the detection cylinder sleeve 7 and the lower pressing plate 12 can also be reset under the rebound force of the spring 13, so as to facilitate the removal of the combined piston, the device inserts the combined piston into the inside of the detection cylinder sleeve 7 and drives it to immerse in the water body, then injects air into the inside of the detection cylinder sleeve 7, if air bubbles appear in the water body, it means that the combined piston fails the sealing test, if no air bubbles appear in the water body, it means that the combined piston passes the sealing test, improving the intuitiveness and detection efficiency in the detection process, and in the detection process, the limiting plate 20 and the second sliding plate 19 drive the sliding frame 5 and the combined piston to reciprocate, so that the combined piston does reciprocating piston motion in the inside of the detection cylinder sleeve 7 to simulate the real working scene, effectively improving the sealing detection accuracy and rigor of the combined piston, and thus improving the accuracy of the detection result, open the electromagnetic valve through the external controller to drain the detection water in the water tank 2 and replace it.The rubber antiskid pad arranged on the inner side of the clamping plate 6 can further improve the clamping stability of the combined piston, and the external controller can facilitate the workers to control the first motor 9, the second motor 15, the third motor 17 and the electromagnetic valve.

[0029] The above-mentioned front, rear, left, right, top and bottom are based on the drawings of the specification Figure 1 The front of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on according to the standard of the human observation angle.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application.

[0031] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A combined piston sealing performance testing device, comprising a base (1), characterized in that, A water tank (2) is fixedly connected to the top of the base (1). A fixed frame (3) is fixedly connected to the top of the base (1) extending into the interior of the water tank (2). A lifting block (4) is provided above the interior of the fixed frame (3). A sliding frame (5) is slidably connected inside the lifting block (4). Clamping plates (6) are provided on both sides of the bottom of the sliding frame (5). A detection cylinder sleeve (7) is provided inside the fixed frame (3) and below the lifting block (4). A hose (22) is fixedly connected to the bottom of the detection cylinder sleeve (7) extending into the exterior of the water tank (2). A transmission component is provided inside the fixed frame (3). A clamping component is provided inside the sliding frame (5).

2. The combined piston sealing performance testing device according to claim 1, characterized in that, The transmission assembly includes a transmission screw (8) and a transmission unit. The transmission screw (8) is rotatably connected to the inner sides of the fixed frame (3). Threaded blocks (10) are fixedly connected to the outer sides of the lifting block (4). The two threaded blocks (10) are slidably connected to the inner sides of the fixed frame (3) and threadedly connected to the outer sides of the corresponding transmission screw (8). The upper sides of the fixed frame (3) are fixedly connected to the first motor (9). The output end of the first motor (9) is fixedly connected to the corresponding transmission screw (8). Sliding sleeves (11) are fixedly connected to the bottom of the two threaded blocks (10) and to the outer sides of the transmission screw (8). Lower pressure plates (12) are fixedly connected to the outer sides of the detection cylinder sleeve (7). The two lower pressure plates (12) are slidably connected to the inner sides of the fixed frame (3). Springs (13) are provided between the outer sides of the two transmission screws (8) and the inner wall of the lower pressure plate (12) and the fixed frame (3). The clamping plate (6) can reciprocate through the transmission unit.

3. The combined piston sealing performance testing device according to claim 2, characterized in that, The transmission unit includes a third motor (17), which is fixedly connected to the top of the lifting block (4) via a mounting block. An eccentric wheel (18) is fixedly connected to the output end of the third motor (17). A sliding shaft is fixedly connected to the outer side of the eccentric wheel (18). A second sliding plate (19) is slidably connected to the top of the lifting block (4). A limit plate (20) is fixedly connected to the top of the second sliding plate (19). The sliding shaft is slidably connected to the inside of the limit plate (20). The bottom of the second sliding plate (19) extends into the inside of the lifting block (4) and is fixedly connected to the sliding frame (5).

4. The combined piston sealing performance testing device according to claim 3, characterized in that, The clamping assembly includes a bidirectional lead screw (14), which is rotatably connected to the inside of the sliding frame (5). A second motor (15) is fixedly connected to the outer side of the sliding frame (5). The output end of the second motor (15) extends into the inside of the sliding frame (5) and is fixedly connected to the bidirectional lead screw (14). Two first sliding plates (16) are slidably connected to both sides of the inside of the sliding frame (5). The two first sliding plates (16) are threaded to the outer sides of the bidirectional lead screw (14) respectively. The bottom of the two first sliding plates (16) extends to the bottom of the sliding frame (5) and is fixedly connected to two clamping plates (6) respectively.

5. The combined piston sealing performance testing device according to claim 4, characterized in that, A water outlet (21) is fixedly connected to one side of the lower exterior of the water tank (2). An electromagnetic valve is installed inside the water outlet (21). Rubber anti-slip pads are fixedly connected to the inner sides of the two clamping plates (6).

6. The combined piston sealing performance testing device according to claim 5, characterized in that, The first motor (9), the second motor (15), the third motor (17) and the solenoid valve are all electrically connected to an external controller.

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