Testing device for aging test of aluminum hose

Abstract

The invention discloses a testing device for an aging test of an aluminum hose, which comprises a stretching and screwing mechanism for stretching and screwing the aluminum hose, and a spraying mechanism matched with the stretching and screwing mechanism for use and used for spraying the surface of the aluminum hose, movable arms are arranged on the two sides of the inner surface of the guide rail frame, sleeves are arranged at the tail ends of the movable arms, and the sleeves and the movable arms are rotationally arranged through bearings. According to the testing device, by arranging the stretching and screwing mechanism and the spraying mechanism, screwing force can be applied while two-way stretching is conducted on the aluminum hose, multiple deformation modes of the aluminum hose in the actual use environment are simulated, then saline water is sprayed to the surface of the aluminum hose through the spraying mechanism, and the corrosion resistance in the deformation state is evaluated.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum hose testing, and in particular to a testing device for aging testing of aluminum hoses. Background Art

[0002] Due to its light weight, corrosion resistance, recyclability and other characteristics, aluminum hoses are widely used in the fields of daily chemical products, pharmaceuticals, etc., such as medicinal ointments, cosmetics, toothpaste and food packaging. Especially in the pharmaceutical field, the use requirements of aluminum hoses are extremely high, and the quality of their performance is directly related to the safety and effectiveness of drugs. During long-term use, aluminum hoses may age due to factors such as temperature, humidity, light, oxidation, etc., resulting in damage to the surface oxide layer, decreased sealing performance or even rupture, which directly affects the quality and safety of the contents. Therefore, aging testing of aluminum hoses to simulate their long-term performance changes in the real environment is an important link to ensure product quality.

[0003] At present, for the evaluation of the aging performance of aluminum hoses, especially in the process of implementing tensile performance testing, existing testing equipment generally only provides unidirectional tensile function, resulting in that during the testing process, aluminum hoses cannot withstand the combined stress of tensile and screwing at the same time. This limitation is likely to affect the comprehensiveness of the test results, because in actual applications, aluminum hoses often have to withstand a more complex mechanical environment, including the comprehensive influence of various deformation modes such as tensile and screwing. Therefore, traditional testing methods cannot accurately simulate the aging behavior of hoses under actual use conditions, affecting the accuracy of the evaluation of the durability and long-term performance of hoses. For this reason, a testing device for aging testing of aluminum hoses is provided. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention proposes a testing device for aging testing of aluminum hoses.

[0005] In order to solve the above technical problems, the basic technical solution proposed by the present invention is as follows: A testing device for aging testing of aluminum hoses includes a stretching and screwing mechanism for stretching and screwing an aluminum hose, and a spraying mechanism used in cooperation with the stretching and screwing mechanism for spraying the surface of the aluminum hose. The stretching and screwing mechanism includes a guide rail frame, on both sides of the inner surface of which movable arms are provided, and sleeves are arranged at the ends of the movable arms, and the sleeves are rotatably arranged with the movable arms through bearings.

[0006] Preferably, a plurality of T-shaped feet arranged at equal intervals are fixedly arranged on the lower surface of the guide rail frame, a bidirectional screw is rotatably arranged inside the guide rail frame, the outer end of the bidirectional screw is connected and assembled with the output end of an external first driving member through a coupling, and both of the movable arms are engaged with the bidirectional screw through threads.

[0007] Preferably, a plurality of barrel openings penetrating through the outer surface of the sleeve and arranged at equal intervals in a ring shape are provided, and a pressing plate is slidably arranged on the inner surface of the barrel opening. A pressing plate for clamping and fixing the aluminum hose is fixedly arranged at the bottom end of the pressing plate. A positioning rod for positioning the aluminum hose is fixedly arranged in the middle of the sleeve. A third gear for combining the pressing plates is arranged on the outer surface of the sleeve. Bearing seats are fixedly arranged on both sides of the outer surface of the sleeve. A driving shaft is arranged between the two bearing seats. The outer end of the driving shaft is connected and assembled with the output end of an external second driving member through a coupling. A second gear is slidably arranged on the outer surface of the driving shaft and close to the third gear. A flat key is fixedly arranged on the outer surface of the driving shaft.

[0008] Preferably, a slope is arranged on the upper surface of the pressing plate. Second return springs are arranged on both sides of the upper surface of the pressing plate. The pressing plate is elastically arranged with the sleeve through the second return springs. The pressing plate is designed in an arc structure. A rubber pad is fixedly arranged on the lower surface of the pressing plate. A rubber sleeve is fixedly arranged on the outer surface of the positioning rod. External threads are stranded on the outer surface of the sleeve. Internal threads are stranded on the inner surface of the third gear. The third gear is arranged in thread engagement with the sleeve. The driving shaft is rotatably arranged with the bearing seat through a bearing. The second gear is meshed with the third gear. Side rings are fixedly arranged at both ends of the second gear.

[0009] Preferably, a first gear for driving the sleeve is fixedly installed in the middle of the outer end of the sleeve. A guide seat is fixedly arranged on the upper surface of the movable arm. A guide rod is elastically arranged in the inner surface of the guide seat through a first return spring. One end of the guide rod is fixedly provided with a toothed plate for driving the first gear, and the other end of the guide rod is provided with a roller. The toothed plate is meshed with the first gear. Triangular plates are fixedly arranged on the upper surface of the guide rail frame and at positions of the rollers. The roller is arranged in rolling contact with the triangular plate.

[0010] Preferably, the spraying mechanism includes a water collecting pipe. A plurality of water injection pipes arranged at equal intervals are fixedly arranged on the upper surface of the water collecting pipe. The upper end of the water injection pipe is fixedly provided with an annular pipe. A plurality of atomizing nozzles arranged at equal intervals in a ring shape are installed on the outer surface of the annular pipe. The water collecting pipe, the water injection pipe, and the annular pipe are communicated with each other. The inlet end of the water collecting pipe is connected and assembled with the outlet end of an external water pump, and the inlet end of the external water pump is connected with a brine water source through a water suction pipe.

[0011] The beneficial effects of the present invention are: This test device, through the provided stretching and screwing mechanism and spraying mechanism, can apply a screwing force while performing two-way stretching on an aluminum hose, simulating various deformation modes in its actual usage environment. Then, the spraying mechanism is used to spray salt water on its surface to evaluate the corrosion resistance in the deformed state. Brief Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the present invention; Figure 3 is a schematic diagram of the structure of the present invention; Figure 4 is a schematic diagram of the structure of the present invention.

[0013] Description of the Reference Numerals: 100, stretching and screwing mechanism; 101, bidirectional screw; 102, T-shaped support foot; 103, first driving member; 104, guide rail frame; 105, movable arm; 106, sleeve; 107, triangular plate; 108, pressing plate; 109, first gear; 110, first return spring; 111, toothed plate; 112, guide rod; 113, roller; 114, guide seat; 115, rubber sleeve; 116, positioning rod; 117, pressing board; 118, second return spring; 119, flat key; 120, second gear; 121, side ring; 122, drive shaft; 123, second driving member; 124, bearing seat; 125, rubber pad; 126, third gear; 200, spraying mechanism; 201, water injection pipe; 202, atomizing nozzle; 203, water collecting pipe; 204, annular pipe. Detailed Description of the Embodiment

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached Figure 1 to the attached Figure 4 Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0015] The present invention provides a technical solution: a test device for aging test of aluminum hoses, including a stretching and screwing mechanism 100 for stretching and screwing the aluminum hoses, and a spraying mechanism 200 used in cooperation with the stretching and screwing mechanism 100 for spraying the surface of the aluminum hoses. When in use, the provided stretching and screwing mechanism 100 can perform bidirectional stretching on the aluminum hoses and screw them during the stretching of the aluminum hoses, so as to deform the aluminum hoses. Then, the provided spraying mechanism 200 sprays brine on the surface of the aluminum hoses, and the corrosion resistance of the aluminum hoses in the deformed state can be tested.

[0016] Specifically, the stretching and screwing mechanism 100 includes a guide rail frame 104. A plurality of T-shaped feet 102 arranged at equal intervals are fixedly provided on the lower surface of the guide rail frame 104. A bidirectional screw 101 is rotatably arranged inside the guide rail frame 104 through a bearing. The outer end of the bidirectional screw 101 is connected and assembled with the output end of an external first driving member 103 through a coupling. The first driving member 103 is electrically connected to an external frequency converter. Moving arms 105 are arranged on both sides of the inner surface of the guide rail frame 104. The two moving arms 105 are symmetrically arranged about the longitudinal central axis of the guide rail frame 104. Both of the two moving arms 105 are engaged with the bidirectional screw 101 through threads. A sleeve 106 is arranged at the end of the moving arm 105. The sleeve 106 is rotatably arranged with the moving arm 105 through a bearing. A plurality of barrel openings arranged in an annular and equally spaced manner are formed through the outer surface of the sleeve 106. A pressing plate 108 is slidably arranged on the inner surface of the barrel opening. A slope is arranged on the upper surface of the pressing plate 108. A pressing plate 117 for clamping and fixing the aluminum hose is fixedly arranged at the bottom end of the pressing plate 108. Second return springs 118 are arranged on both sides of the upper surface of the pressing plate 117. The pressing plate 117 is elastically arranged with the sleeve 106 through the second return springs 118. The pressing plate 117 is designed in an arc structure. A rubber pad 125 is fixedly arranged on the lower surface of the pressing plate 117. A positioning rod 116 for positioning the aluminum hose is fixedly arranged in the middle of the sleeve 106. A rubber sleeve 115 is fixedly arranged on the outer surface of the positioning rod 116 for cooperating with the rubber pad 125 to increase the friction at the joint and avoid slipping. External threads are stranded on the outer surface of the sleeve 106. A third gear 126 for merging each pressing plate 108 is arranged on the outer surface of the sleeve 106. Internal threads are stranded on the inner surface of the third gear 126. The third gear 126 is engaged with the sleeve 106 through threads. Bearing seats 124 are fixedly arranged on both sides of the outer surface of the sleeve 106. A driving shaft 122 is arranged between the two bearing seats 124. The driving shaft 122 is rotatably arranged with the bearing seats 124 through bearings. The outer end of the driving shaft 122 is connected and assembled with the output end of an external second driving member 123 through a coupling. The second driving member 123 is electrically connected to an external frequency converter. A second gear 120 is slidably arranged on the outer surface of the driving shaft 122 and close to the position of the third gear 126. The second gear 120 is engaged with the third gear 126. Side rings 121 are fixedly arranged at both ends of the second gear 120 for positioning the second gear 120 to make the second gear 120 move synchronously with the third gear 126. A flat key 119 is fixedly arranged on the outer surface of the driving shaft 122 for positioning the second gear 120 to make the driving shaft 122 rotate synchronously with the second gear 120. The two side rings 121 and the second gear 120 are coaxial.

[0017] Furthermore, a first gear 109 for driving the sleeve 106 is fixedly installed in the middle of the outer end of the sleeve 106. A guide seat 114 is fixedly arranged on the upper surface of the movable arm 105. A guide rod 112 is elastically arranged on the inner surface of the guide seat 114 through a first return spring 110. One end of the guide rod 112 is fixedly provided with a toothed plate 111 for driving the first gear 109, and the other end of the guide rod 112 is provided with a roller 113. The toothed plate 111 is meshed with the first gear 109. Triangular plates 107 are fixedly arranged on the upper surface of the guide rail frame 104 at the positions of the rollers 113. The rollers 113 are in rolling contact with the triangular plates 107. During use, when the two sleeves 106 move away from each other and perform bidirectional stretching on the aluminum hose, by using the arranged triangular plates 107, the two first gears 109 can be rotated in different directions, so that the two sleeves 106 can be rotated in different directions, thereby screwing the aluminum hose during the stretching process.

[0018] Specifically, the spraying mechanism 200 includes a water collecting pipe 203. A plurality of water injection pipes 201 arranged at equal intervals are fixedly arranged on the upper surface of the water collecting pipe 203. The upper ends of the water injection pipes 201 are fixedly provided with an annular pipe 204. A plurality of atomizing nozzles 202 arranged at equal intervals in a ring are installed on the outer surface of the annular pipe 204. The water collecting pipe 203, the water injection pipes 201, and the annular pipe 204 are connected and communicated to spray brine on the surface of the aluminum hose. The inlet end of the water collecting pipe 203 is connected and assembled with the outlet end of an external water pump, and the inlet end of the external water pump is connected to a brine water source through a water suction pipe.

[0019] According to the above, through the arranged stretching and screwing mechanism 100 and spraying mechanism 200, this testing device can apply a screwing force while performing bidirectional stretching on the aluminum hose, simulating various deformation modes in its actual use environment; then, the spraying mechanism 200 is used to spray brine on its surface to evaluate the corrosion resistance in the deformed state.

[0020] Working principle: During use, first start the external first driving member 103 and the second driving member 123 and control them through a frequency converter to rotate the bidirectional screw 101, which pushes the movable arms 105 at both ends to drive the sleeve 106 to move in opposite directions, performing bidirectional stretching on the aluminum hose. At the same time, the pressing plate 108 on the sleeve 106 gradually moves towards the aluminum hose and applies pressure, and through the third gear 126, each pressing plate 108 is synchronously combined to ensure uniform stress on the aluminum hose during the stretching process, avoiding inconsistent deformation caused by local stress concentration. During this period, the toothed plate 111 on the movable arm 105 drives the first gear 109 to rotate through the guide rod 112, causing the two sleeves 106 to twist with each other, imitating the complex stress situation in actual use. After completing bidirectional stretching and twisting, start the external water pump to make the brine pass through the water injection pipe 201 and the annular pipe 204 on the water collecting pipe 203, and finally be sprayed onto the surface of the aluminum hose by the atomizing nozzle 202 to test its corrosion resistance under complex stress conditions, so as to comprehensively simulate and evaluate the actual aging behavior and long-term use performance of the hose.

[0021] According to the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A testing device for aluminum hose aging test, comprising a stretching and twisting mechanism (100) for stretching and twisting the aluminum hose, and a spraying mechanism (200) used in conjunction with the stretching and twisting mechanism (100) for spraying the surface of the aluminum hose, characterized in that: The stretching and twisting mechanism (100) comprises a guide rail frame (104), movable arms (105) are arranged on both sides of the inner surface of the guide rail frame (104), sleeves (106) are arranged at the ends of the movable arms (105), and the sleeves (106) and the movable arms (105) are rotatably arranged via bearings.

2. A test device for aluminum hose aging test according to claim 1, characterized in that: A plurality of T-shaped legs (102) arranged at equal intervals are fixedly disposed on the lower surface of the guide rail frame (104); a bidirectional screw rod (101) is rotatably disposed inside the guide rail frame (104) via a bearing; an outer end of the bidirectional screw rod (101) is connected and assembled with an output end of an external first driving member (103) via a coupling; and the two movable arms (105) are both engaged with the bidirectional screw rod (101) via threads.

3. A test device for aluminum hose aging test according to claim 1, characterized in that: The outer surface of the sleeve (106) is penetrated by a plurality of tube openings arranged in a circular shape with equal spacing, and a pressure plate (108) is slidably provided on the inner surface of the tube opening, a pressing plate (117) for clamping and fixing the aluminum hose is fixedly provided at the bottom end of the pressure plate (108), a positioning rod (116) for positioning the aluminum hose is fixedly provided in the middle of the sleeve (106), and a third gear for merging the pressure plates (108) is provided on the outer surface of the sleeve (106). (126), bearing seats (124) are fixedly provided on both sides of the outer surface of the sleeve (106), a drive shaft (122) is provided between the two bearing seats (124), the outer end of the drive shaft (122) is connected and assembled with the output end of the external second drive member (123) through a coupling, a second gear (120) is slidably provided on the outer surface of the drive shaft (122) and close to the position of the third gear (126), and a flat key (119) is fixedly provided on the outer surface of the drive shaft (122).

4. A test device for aluminum hose aging test according to claim 3, characterized in that: The upper surface of the pressure plate (108) is provided with a slope, and second return springs (118) are provided on both sides of the upper surface of the pressing plate (117). The pressing plate (117) and the sleeve (106) are elastically arranged by the second return spring (118). The pressing plate (117) is designed in an arc-shaped structure. A rubber pad (125) is fixedly arranged on the lower surface of the pressing plate (117). A rubber sleeve (115) is fixedly arranged on the outer surface of the positioning rod (116). An external thread is twisted on the outer surface of the sleeve (106). An internal thread is twisted on the inner surface of the third gear (126). The third gear (126) and the sleeve (106) are arranged to be engaged by threads. The driving shaft (122) and the bearing seat (124) are rotatably arranged by bearings. The second gear (120) is meshed with the third gear (126), and side rings (121) are fixedly arranged on both ends of the second gear (120).

5. A test device for aluminum hose aging test according to claim 4, characterized in that: A first gear (109) for driving the sleeve (106) is fixedly mounted in the middle of the outer end of the sleeve (106); a guide seat (114) is fixedly arranged on the upper surface of the movable arm (105); a guide rod (112) is elastically arranged on the inner surface of the guide seat (114) via a first return spring (110); a toothed plate (111) for driving the first gear (109) is fixedly arranged at one end of the guide rod (112); and a roller (113) is arranged at the other end of the guide rod (112); the toothed plate (111) is meshed with the first gear (109); a triangular plate (107) is fixedly arranged on the upper surface of the guide rail frame (104) and at the position of each roller (113); the roller (113) and the triangular plate (107) are rollingly arranged.

6. The testing device for aluminum hose aging test according to claim 1, characterized in that: The spray mechanism (200) comprises a water collecting pipe (203), a plurality of water injection pipes (201) arranged at equal intervals are fixedly arranged on the upper surface of the water collecting pipe (203), a ring-shaped pipe (204) is fixedly arranged on the upper end of the water injection pipe (201), a plurality of atomizing nozzles (202) arranged at equal intervals in a ring-shaped shape are installed on the outer surface of the ring-shaped pipe (204), the water collecting pipe (203), the water injection pipe (201), and the ring-shaped pipe (204) are connected, the inlet end of the water collecting pipe (203) is connected and assembled with the outlet end of an external water pump, and the inlet end of the external water pump is connected with a salt water source via a pumping pipe.

Images