Hydraulic element air tightness detection device

Abstract

The utility model relates to the technical field of hydraulic elements, and provides a hydraulic element air tightness detection device which comprises a detection table, rotating cylinders are rotatably connected in two mounting plates respectively, and pressing mechanisms used for pressing an air cylinder are arranged at the tops of the inner side walls of the two rotating cylinders respectively. And a rotating mechanism for driving the rotating drum to rotate is arranged on the outer side wall of one rotating drum. According to the air tightness detection device for the hydraulic element, the rotating mechanism drives the fixed air cylinder to rotate through the rotating drum, so that the top cover and the bottom cover of the air cylinder can synchronously rotate, and a circle of water can be directly and conveniently brushed on the mounting positions of the top cover and the bottom cover of the air cylinder and the cylinder body; the distribution uniformity of water at the mounting positions of the top cover and the bottom cover of the air cylinder and the cylinder body can be improved, and the problem that the air tightness detection result is inaccurate due to the fact that the water distribution is not uniform and the brushing is omitted when a scrubbing brush is used for manually brushing water at the mounting positions of the top cover and the bottom cover and the cylinder body in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic components, and in particular to an air tightness detection device for hydraulic components. Background Art

[0002] In the production process of hydraulic components, it is necessary to test the air tightness of the cylinder. The cylinder is a cylindrical metal part that guides the piston rod to perform linear reciprocating motion in the cylinder body. The cylinder structure generally includes a cylinder body, a top cover and a bottom cover arranged at both ends of the cylinder body, a piston rod, a piston seat, a support ring, and two air nozzles arranged on the cylinder body.

[0003] After searching, the existing patent (Announcement No.: CN212807500U) discloses a cylinder air tightness detection device, which is used in the field of cylinder air tightness detection, and includes a detection platform, two support frames are arranged on the detection platform, and the two support frames respectively support the two ends of the cylinder, and two air pipes are arranged on the detection platform, and the two air pipes are connected to the air source, and a water tank is arranged on the detection platform, and a brush is arranged in the water tank. The application has the effect of being able to detect the sealing of the installation place of the top cover and the bottom cover with the cylinder body, so as to ensure that the sealing of the installation place of the top cover and the bottom cover with the cylinder body is good, and improve the use performance of the cylinder.

[0004] However, in the implementation of the relevant technology, the following problems were found: in the above, after the cylinder to be tested is fixed, the operator dips the scrub brush in water and brushes the water on the installation place of the top cover and the bottom cover and the cylinder body, and then observes whether bubbles are generated. If bubbles are generated, it indicates that there is a sealing leakage at the installation place of the top cover and the bottom cover and the cylinder body. If no bubbles are generated, it indicates that the installation place of the top cover and the bottom cover and the cylinder body is well sealed. However, the operator uses the scrub brush to manually brush water along the installation place of the top cover and the bottom cover and the cylinder body of the cylinder, which may cause uneven water distribution and missed brushing. If there is a sealing leakage, the uneven water distribution will cause more or less bubbles to be generated. Too few bubbles may be easily ignored, and bubbles will not be generated even if there is a leak in the missed place, which is more likely to be ignored, resulting in inaccurate air tightness test results. Utility Model Content

[0005] The utility model provides a hydraulic component air tightness detection device, which solves the problem in the related art that the use of a plate brush to manually brush water at the installation locations of the top cover, the bottom cover and the cylinder body is prone to uneven water distribution and brushing leakage, resulting in inaccurate air tightness detection results.

[0006] The technical solution of the utility model is as follows: a hydraulic component air tightness detection device comprises a detection table, two support frames are arranged on the upper surface of the detection table, a spacing adjustment mechanism for adjusting the spacing between the two support frames is arranged on the upper surface of the detection table, mounting plates are fixedly connected to the upper surfaces of the two support frames, rotating drums are rotatably connected in the two mounting plates, placing mechanisms for placing cylinders are arranged at the bottoms of the inner side walls of the two rotating drums, clamping mechanisms for clamping the cylinders are arranged at the tops of the inner side walls of the two rotating drums, a rotating mechanism for driving the rotating drum to rotate is arranged on the outer side wall of one of the rotating drums, and water brushing mechanisms for brushing water at the mounting positions of the top cover and bottom cover of the cylinder and the cylinder body are arranged on the opposite sides of the two mounting plates.

[0007] Preferably, the placement mechanism comprises a cushion block, the cushion block is fixedly connected to the bottom of the inner wall of the drum, and the upper end of the cushion block is fixedly connected to a placement plate.

[0008] Preferably, the clamping mechanism comprises a first electric cylinder, the first electric cylinder is fixedly connected to the top of the inner wall of the drum, and the output end of the first electric cylinder is fixedly connected to a pressing plate.

[0009] Preferably, the rotating mechanism comprises a ring gear and a motor, the ring gear is fixedly sleeved on the outer side wall of the rotating drum, the motor is fixedly connected to the upper surface of the supporting frame, and the output end of the motor is fixedly connected to a gear.

[0010] Preferably, the gear is meshed with the ring gear, and the outer ring diameter of the ring gear is larger than the outer ring diameter of the gear.

[0011] Preferably, the water brushing mechanism comprises a fixing plate, the fixing plate is fixedly connected to one side of the mounting plate, a second electric cylinder is fixedly connected to the fixing plate, and a water brushing assembly is provided at an output end of the second electric cylinder.

[0012] Preferably, the water brushing assembly comprises a connecting frame, the connecting frame is fixedly connected to the output end of the second electric cylinder, and the lower end of the connecting frame is rotatably connected to a water brushing roller.

[0013] Preferably, the water brushing roller comprises a roller, the roller is rotatably connected to the lower end of the connecting frame, a waterproof layer is bonded to the outer wall of the roller, and a water absorbing layer is bonded to the outer wall of the waterproof layer.

[0014] The working principle and beneficial effects of the utility model are:

[0015] In the utility model, two placing mechanisms and two clamping mechanisms are used to conveniently fix the cylinder to be tested in two rotating drums, and then the rotating mechanism drives the fixed cylinder to rotate through the rotating drum, so that the top cover and the bottom cover of the cylinder can rotate synchronously, and then the two water brushing mechanisms are used to brush water on the mounting locations of the top cover and the bottom cover of the cylinder and the cylinder body respectively, so that a circle of water can be directly and conveniently brushed on the mounting locations of the top cover and the bottom cover of the cylinder and the cylinder body, which can improve the uniformity of water distribution at the mounting locations of the top cover and the bottom cover of the cylinder and the cylinder body, which is beneficial to improving the accuracy of air tightness detection at the mounting locations of the top cover and the bottom cover of the cylinder and the cylinder body, and solves the problem in the related art that the use of a plate brush to manually brush water at the mounting locations of the top cover and the bottom cover of the cylinder and the cylinder body is prone to uneven water distribution and missed brushing, resulting in inaccurate air tightness detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a structural schematic diagram of a hydraulic component air tightness detection device proposed by the utility model;

[0018] Figure 2 This is a structural schematic diagram of a hydraulic component air tightness detection device proposed by the utility model when detecting a cylinder;

[0019] Figure 3 This is a structural schematic diagram of a placement mechanism and a pressing mechanism of a hydraulic component air tightness detection device proposed by the utility model;

[0020] Figure 4 This is a structural schematic diagram of a rotating mechanism of a hydraulic component air tightness detection device proposed by the utility model;

[0021] Figure 5 This is a structural schematic diagram of a water brushing mechanism of a hydraulic component air tightness detection device proposed by the utility model;

[0022] Figure 6 The utility model is a schematic structural diagram of a water brush roller of a hydraulic component air tightness detection device.

[0023] In the figure: 1. testing table; 2. spacing adjustment mechanism; 3. support frame; 4. mounting plate; 5. rotating drum; 6. placing mechanism; 61. cushion block; 62. placing plate; 7. clamping mechanism; 71. first electric cylinder; 72. pressing plate; 8. rotating mechanism; 81. ring gear; 82. motor; 83. gear; 9. water brushing mechanism; 91. fixing plate; 92. second electric cylinder; 93. connecting frame; 94. water brushing roller; 941. roller; 942. waterproof layer; 943. water absorption layer; 10. cylinder. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1 and Figure 2 The utility model provides a technical solution: a hydraulic component air tightness detection device, including a detection table 1, two support frames 3 are arranged on the upper surface of the detection table 1, and a spacing adjustment mechanism 2 for adjusting the spacing between the two support frames 3 is arranged on the upper surface of the detection table 1, and mounting plates 4 are fixedly connected to the upper surfaces of the two support frames 3, and rotating drums 5 are rotatably connected in the two mounting plates 4, and placing mechanisms 6 for placing cylinders 10 are respectively arranged at the bottom of the inner side walls of the two rotating drums 5, and clamping mechanisms 7 for clamping the cylinders 10 are respectively arranged at the tops of the inner side walls of the two rotating drums 5, and a rotating mechanism 8 for driving the rotating drum 5 to rotate is arranged on the outer side wall of one of the rotating drums 5, and water brushing mechanisms 9 for brushing water on the installation places of the top cover and bottom cover of the cylinder 10 and the cylinder body are respectively arranged on the opposite sides of the two mounting plates 4.

[0026] When in use, first adjust the distance between the two support frames 3 through the distance adjustment mechanism 2 to suit the length of the cylinder 10 to be tested. When placing the cylinder 10, pass the cylinder 10 through the two rotating drums 5 in turn, and place the cylinder 10 on the two placing mechanisms 6. Then, press the cylinder 10 through the two clamping mechanisms 7 to complete the fixing process of the cylinder 10. Then, drive the rotating drum 5 connected to it to rotate through the rotating mechanism 8. The rotating drum 5 will drive the placing mechanism 6 and the clamping mechanism 7 on its inner wall to rotate. The placing mechanism 6 and the clamping mechanism 7 will drive the cylinder 10 therein to rotate. During the rotation of the cylinder 10, the other rotating drum 5 and the placing mechanism 6 and the clamping mechanism 7 on its inner wall will also rotate with the cylinder 10, ensuring the stability of the cylinder 10 during rotation. Then, two water brushing mechanisms are used to fix the cylinder 10. 9. Brush water on the mounting locations of the top cover and bottom cover of the rotating cylinder 10 and the cylinder body, which improves the uniformity of water distribution on the mounting locations of the top cover and bottom cover of the cylinder 10 and the cylinder body, and is beneficial to the accuracy of subsequent air tightness detection. After brushing water, stop the rotation of the cylinder 10, and connect the two air pipes on the test bench 1 to the two air nozzles on the cylinder 10 respectively. The air sources connected to the two air pipes are ventilated to the two air pipes in turn to simulate the working environment of the cylinder 10. At this time, observe whether there are bubbles at the mounting locations of the top cover and bottom cover of the cylinder 10 and the cylinder body. If bubbles are generated, it indicates that there is a sealing leakage at the mounting locations of the top cover and bottom cover and the cylinder body. If no bubbles are generated, it indicates that the sealing at the mounting locations of the top cover and bottom cover and the cylinder body is good, thereby achieving the purpose of detecting the sealing performance of the mounting locations of the top cover and bottom cover of the cylinder 10 and the cylinder body.

[0027] Therefore, through the two placement mechanisms 6 and the two clamping mechanisms 7, the cylinder 10 to be tested can be conveniently fixed in the two rotating drums 5, and then the rotating mechanism 8 drives the fixed cylinder 10 to rotate through the rotating drum 5, so that the top cover and the bottom cover of the cylinder 10 can rotate synchronously, and then the two water brushing mechanisms 9 are used to brush water on the installation locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body respectively, so that a circle of water can be directly and conveniently brushed on the installation locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body, which can improve the uniformity of water distribution at the installation locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body, which is beneficial to improving the accuracy of air tightness detection at the installation locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body, and solves the problem in the related art that the water is easily unevenly distributed and missed when the top cover and the bottom cover of the cylinder 10 and the cylinder body are manually brushed with a brush, resulting in inaccurate air tightness detection results.

[0028] See also Figure 3 The placement mechanism 6 includes a pad 61, which is fixedly connected to the bottom of the inner wall of the rotating drum 5. A placement plate 62 is fixedly connected to the upper end of the pad 61. When the cylinder 10 passes through the two rotating drums 5 in sequence, the cylinder 10 can be placed on the two placement plates 62.

[0029] See also Figure 3 The clamping mechanism 7 includes a first electric cylinder 71, which is fixedly connected to the top of the inner wall of the drum 5. The output end of the first electric cylinder 71 is fixedly connected to a pressing plate 72. After the cylinder 10 is placed on the two placement plates 62, the two pressing plates 72 are driven to descend by starting the two first electric cylinders 71 respectively until the two pressing plates 72 clamp the cylinder 10.

[0030] See also Figure 4 The rotating mechanism 8 includes a ring gear 81 and a motor 82. The ring gear 81 is fixedly sleeved on the outer wall of the rotating drum 5. The motor 82 is fixedly connected to the upper surface of the support frame 3. The output end of the motor 82 is fixedly connected with a gear 83. The gear 83 is meshed with the ring gear 81, and the outer ring diameter of the ring gear 81 is larger than the outer ring diameter of the gear 83. By starting the motor 82, the motor 82 drives the gear 83 to rotate, and the gear 83 drives the ring gear 81 to rotate, and the ring gear 81 will drive the rotating drum 5 to rotate.

[0031] See also Figure 5 and Figure 6The water brushing mechanism 9 includes a fixed plate 91, which is fixedly connected to one side of the mounting plate 4. A second electric cylinder 92 is fixedly connected to the fixed plate 91. A water brushing assembly is provided at the output end of the second electric cylinder 92. The water brushing assembly includes a connecting frame 93, which is fixedly connected to the output end of the second electric cylinder 92. A water brushing roller 94 is rotatably connected to the lower end of the connecting frame 93. The water brushing roller 94 includes a roller 941, which is rotatably connected to the lower end of the connecting frame 93. A waterproof layer 942 is bonded to the outer wall of the roller 941. The waterproof layer 942 is a PVC waterproof coiled material. The waterproof layer 942 can play a waterproof role for the roller 941 and reduce the degree of water erosion of the roller 941. A water absorbing layer 943 is bonded to the outer wall of the waterproof layer 942. The water absorbing layer 943 is a water absorbing cotton layer.

[0032] During the rotation of the cylinder 10, the top cover and the bottom cover of the cylinder 10 will rotate synchronously. By starting the two second electric cylinders 92 respectively, the two connecting frames 93 are driven to descend, and the two connecting frames 93 respectively drive the two water brushing rollers 94 to descend until the two water brushing rollers 94 are fully in contact with the mounting locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body. During the rotation of the cylinder 10, the two water brushing rollers 94 will respectively stick to the mounting locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body and roll, and the two water brushing rollers 94 will respectively brush a circle of water on the mounting locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body.

[0033] The working principle and use process of the utility model are as follows: when in use, firstly, the distance between the two support frames 3 is adjusted by the distance adjustment mechanism 2 to suit the length of the cylinder 10 to be detected. When placing the cylinder 10, the cylinder 10 is passed through the two rotating drums 5 in sequence, and the cylinder 10 is placed on the two placement plates 62. The two first electric cylinders 71 are respectively started to drive the two pressing plates 72 to descend until the two pressing plates 72 press the cylinder 10 tightly, and the fixing process of the cylinder 10 is completed. Then, the motor 82 is started, and the motor 82 drives the gear 83 to rotate. The gear 83 drives the ring gear 81 to rotate, and the ring gear 81 drives the rotating drum 5 connected thereto to rotate, and the rotating drum 5 drives the cylinder 10 fixed therein to rotate. During the rotation of the cylinder 10, the other rotating drum 5 and the placement plate 62 and the pressure plate 72 on the inner wall thereof will also rotate with the cylinder 10, ensuring the stability of the cylinder 10 during rotation. During the rotation of the cylinder 10, the top cover and the bottom cover of the cylinder 10 will rotate synchronously, and the two second electric cylinders 92 will be started respectively to drive the two connecting frames 93 to descend, and the two connecting frames 93 will be respectively The two water brushing rollers 94 are driven to descend until the two water brushing rollers 94 are fully in contact with the mounting locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body respectively. When the cylinder 10 rotates, the two water brushing rollers 94 will respectively stick to the mounting locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body and roll. The two water brushing rollers 94 will respectively brush a circle of water at the mounting locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body, thereby improving the uniformity of water distribution at the mounting locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body and facilitating the accuracy of subsequent air tightness testing. After the water brushing is completed, the cylinder 10 stops rotating. The two air pipes on the test bench 1 are respectively connected to the two air nozzles on the cylinder 10, and the air sources external to the two air pipes are ventilated to the two air pipes in turn to simulate the working environment of the cylinder 10. At this time, observe whether there are bubbles at the installation locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body. If bubbles are generated, it indicates that there is a sealing leakage at the installation locations of the top cover and the bottom cover and the cylinder body. If no bubbles are generated, it indicates that the sealing at the installation locations of the top cover and the bottom cover and the cylinder body is good, thereby achieving the purpose of detecting the sealing performance of the installation locations of the top cover and the bottom cover of the cylinder 10 and the cylinder body.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic component air tightness detection device, comprising a detection platform (1), wherein two support frames (3) are arranged on the upper surface of the detection platform (1), and a spacing adjustment mechanism (2) is arranged on the upper surface of the detection platform (1) for adjusting the spacing between the two support frames (3), characterized in that: The upper surfaces of the two support frames (3) are respectively fixedly connected with mounting plates (4), the two mounting plates (4) are respectively rotatably connected with rotating drums (5), the bottoms of the inner side walls of the two rotating drums (5) are respectively provided with placement mechanisms (6) for placing the cylinders (10), the tops of the inner side walls of the two rotating drums (5) are respectively provided with clamping mechanisms (7) for clamping the cylinders (10), the outer side walls of one of the rotating drums (5) are respectively provided with a rotating mechanism (8) for driving the rotating drum (5) to rotate, and the opposite sides of the two mounting plates (4) are respectively provided with water brushing mechanisms (9) for brushing water from the mounting locations of the top cover and bottom cover of the cylinder (10) and the cylinder body.

2. The hydraulic component air tightness detection device according to claim 1, characterized in that: The placement mechanism (6) comprises a cushion block (61), the cushion block (61) being fixedly connected to the bottom of the inner wall of the rotating drum (5), and a placement plate (62) being fixedly connected to the upper end of the cushion block (61).

3. The hydraulic component air tightness detection device according to claim 1, characterized in that: The clamping mechanism (7) comprises a first electric cylinder (71), the first electric cylinder (71) being fixedly connected to the top of the inner wall of the rotating drum (5), and a pressing plate (72) being fixedly connected to the output end of the first electric cylinder (71).

4. The hydraulic component air tightness detection device according to claim 1, characterized in that: The rotating mechanism (8) comprises a ring gear (81) and a motor (82); the ring gear (81) is fixedly sleeved on the outer wall of the rotating drum (5); the motor (82) is fixedly connected to the upper surface of the support frame (3); and the output end of the motor (82) is fixedly connected to a gear (83).

5. The hydraulic component air tightness detection device according to claim 4, characterized in that: The gear (83) is meshed with the ring gear (81), and the outer ring diameter of the ring gear (81) is larger than the outer ring diameter of the gear (83).

6. The hydraulic component air tightness detection device according to claim 1, characterized in that: The water brushing mechanism (9) comprises a fixing plate (91), the fixing plate (91) being fixedly connected to one side of the mounting plate (4), a second electric cylinder (92) being fixedly connected to the fixing plate (91), and a water brushing assembly being provided at an output end of the second electric cylinder (92).

7. The hydraulic component air tightness detection device according to claim 6, characterized in that: The water brushing assembly comprises a connecting frame (93), the connecting frame (93) being fixedly connected to the output end of the second electric cylinder (92), and the lower end of the connecting frame (93) being rotatably connected to a water brushing roller (94).

8. The hydraulic component air tightness detection device according to claim 7, characterized in that: The water brushing roller (94) comprises a roller (941), the roller (941) being rotatably connected to the lower end of the connecting frame (93), a waterproof layer (942) being bonded to the outer wall of the roller (941), and a water absorbing layer (943) being bonded to the outer wall of the waterproof layer (942).

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