Strength testing device for high-wear-resistance anti-extrusion hydraulic oil pipe

Abstract

The invention belongs to the technical field of hydraulic oil pipe strength testing, and relates to a high-wear-resistance anti-extrusion hydraulic oil pipe strength testing device which comprises a bottom frame, a connecting frame, door plates, a connecting mechanism, a liquid injection mechanism and an extrusion testing mechanism, the connecting frame is connected to the top of the bottom frame, and the door plates are rotationally connected to the two sides of the connecting frame; the connecting frame is provided with a connecting mechanism and an extrusion testing mechanism, the bottom frame is provided with a liquid injection mechanism, the liquid injection mechanism can inject liquid into the hydraulic oil pipe, and the extrusion testing mechanism is used for extruding the hydraulic oil pipe. When the hydraulic oil pipe strength testing device is used for testing the strength of a hydraulic oil pipe, water with certain pressure can be injected into the hydraulic oil pipe, so that the pressure in the oil pipe is tested, and during testing, pressure can be applied inwards from the outside of the oil pipe through the extrusion columns to simulate impact generated from the outside in the testing process; the strength test and the extrusion test on the hydraulic oil pipe can be realized at the same time, and the test effect is better.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydraulic tubing strength testing, and relates to a high-wear-resistant and extrusion-resistant hydraulic tubing strength testing device. Background Art

[0002] With the continuous improvement of the performance standards of hydraulic systems in the industrial field, as one of the key components of hydraulic systems, the wear resistance and extrusion resistance of hydraulic tubing have become particularly crucial. These characteristics directly affect the overall reliability and efficiency of the hydraulic system. In response to this trend, developing more advanced materials and testing methods to ensure that hydraulic tubing can maintain excellent performance under various extreme conditions has become an important direction in the current development of engineering technology.

[0003] Currently, when testing the strength of hydraulic tubing, it is usually done by injecting water at a certain pressure into the tubing and conducting step-by-step pressure tests. At each pressure stage, a static pressure state is maintained for a period of time, and the tubing is observed for deformation or leakage to evaluate its compressive capacity. However, when using this method for testing, it can only simply detect the pressure-bearing capacity inside the tubing. In the actual application of the tubing, the outside of the tubing may also be affected by pressure. Merely testing the internal pressure-bearing capacity of the tubing is difficult to simulate the impact generated by the outside world during actual use, and the test effect is not good. Summary of the Invention

[0004] In view of this, the present invention provides a high-wear-resistant and extrusion-resistant hydraulic tubing strength testing device.

[0005] The technical implementation solution of the present invention is: a high-wear-resistant and extrusion-resistant hydraulic tubing strength testing device, which includes a chassis, a connection frame, a door panel, a connection mechanism, a liquid injection mechanism, and an extrusion testing mechanism. The top of the chassis is connected to the connection frame. Both sides of the connection frame are rotatably connected to the door panel. The connection frame is provided with a connection mechanism and an extrusion testing mechanism. The chassis is provided with a liquid injection mechanism. The liquid injection mechanism can inject liquid into the hydraulic tubing, and the extrusion testing mechanism is used to extrude the hydraulic tubing.

[0006] In addition, particularly preferably, the connection mechanism includes an electric guide rail, a connection plate, a fixing stud one, and a pressure gauge. Electric guide rails are installed on both sides of the connection frame. A connection plate is connected between the moving bodies of the two electric guide rails. A pressure gauge is installed in the middle of the top of the connection plate. A fixing stud one is connected to the bottom of the connection plate, and the sensing end of the pressure gauge passes through the fixing stud one.

[0007] In addition, it is particularly preferred that the liquid injection mechanism includes a sunken box body, a partition plate, fixing stud two, a water pump and a liquid injection pipe. The sunken box body is arranged at the lower part inside the chassis. The top of the sunken box body is connected with the partition plate. A plurality of liquid leakage holes are evenly spaced and opened on the partition plate. The middle of the top of the partition plate is connected with the fixing stud two. The inside of the fixing stud two is hollow. A water pump is installed inside the sunken box body. The liquid outlet end of the water pump is communicated with the liquid injection pipe. The liquid injection pipe is communicated with the inside of the fixing stud two.

[0008] In addition, it is particularly preferred that the extrusion test mechanism includes an air pump, an air injection pipe, a sliding rod, a sliding frame, a lead screw motor, a cylinder body, an extrusion column, an elastic member and a solenoid valve. The air pump is installed on the top of the connecting frame. The sliding rod is slidably connected to the connecting plate. The sliding frame is installed at the bottom of the sliding rod. The lead screw motor is installed on the connecting plate. The lead screw of the lead screw motor is rotationally connected to the sliding frame. Cylinder bodies are installed on both sides of the sliding frame. The extrusion column is slidably connected inside the cylinder body. An elastic member is connected between the extrusion column and the cylinder body. The solenoid valve is arranged at the bottom of the cylinder body. The air injection pipe is communicated with the cylinder body.

[0009] In addition, it is particularly preferred that a protection mechanism is further included. The protection mechanism includes a protection soft cover and a connecting iron ring. The protection soft cover is connected to the bottom of the connecting plate. The protection soft cover covers the fixing stud one and the fixing stud two. The connecting iron ring is arranged at the bottom of the protection soft cover.

[0010] In addition, it is particularly preferred that a temperature control mechanism is further included. The temperature control mechanism includes an air suction frame, a guide air pipe, a communicating pipe, a fan, a refrigeration chip and a heating pipe. Two air suction frames are connected to the connecting frame. Communicating pipes are communicated with both air suction frames. One-way valves are arranged at the communicating pipes. A guide air pipe is communicated between the two communicating pipes. The guide air pipe passes through the connecting plate and is communicated with the inside of the protection soft cover. A fan is installed at the air suction frame. A heating pipe is installed inside one of the air suction frames. A refrigeration chip is installed inside the other air suction frame. Two exhaust holes are opened in the middle of the partition plate. The protection soft cover can move downwards to cover the exhaust holes.

[0011] In addition, it is particularly preferred that a fixing mechanism is further included. The fixing mechanism includes a connecting ring and a ring magnet one. The connecting ring is connected to the middle of the bottom of the connecting plate. The ring magnet one is connected to the bottom of the connecting ring.

[0012] In addition, it is particularly preferred that a ring magnet two is further included. Two ring magnet twos are connected to the top of the partition plate. The ring magnet two can attract the connecting iron ring.

[0013] Advantages of the present invention: 1. When testing the strength of the hydraulic oil pipe, the present invention can inject water with a certain pressure into the hydraulic oil pipe to test the internal pressure of the pipe. During the test, it can also apply pressure from the outside to the inside of the pipe through the extrusion column to simulate the impact generated outside during the test, achieving the effect of simultaneously testing the strength and extrusion of the hydraulic oil pipe, and the test effect is better.

[0014] 2. During the process of testing the hydraulic oil pipe, the present invention can cool or heat the surrounding environment of the hydraulic oil pipe through the cooperation of the refrigeration sheet and the heating pipe to simulate the use strength of the hydraulic oil pipe under different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the connection mechanism, liquid injection mechanism and extrusion test mechanism of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the extrusion test mechanism of the present invention.

[0018] Figure 4 It is a cross-sectional view of the liquid injection mechanism of the present invention.

[0019] Figure 5 It is a cross-sectional view of the extrusion test mechanism of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the protection mechanism of the present invention.

[0021] Figure 7 It is a cross-sectional view of the protection mechanism of the present invention.

[0022] Figure 8 It is the first structural schematic diagram of the temperature control mechanism of the present invention.

[0023] Figure 9 It is the second structural schematic diagram of the temperature control mechanism of the present invention.

[0024] Figure 10 It is a cross-sectional view of the temperature control mechanism of the present invention.

[0025] Figure 11 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0026] Figure 12 It is a structural schematic diagram of the annular magnet II, connecting iron ring and protective soft cover of the present invention.

[0027] Figure 13 For the present invention Figure 12 Enlarged view of part A.

[0028] Names of the reference numerals in the figure: 1: chassis, 2: connecting frame, 3: door panel, 41: electric guide rail, 42: connecting plate, 43: fixing stud 1, 44: pressure gauge, 51: sunken box body, 52: partition board, 53: fixing stud 2, 54: water pump, 55: liquid injection pipe, 61: air pump, 62: air injection pipe, 63: sliding rod, 64: sliding frame, 65: lead screw motor, 66: cylinder block, 67: extrusion column, 68: elastic member, 69: solenoid valve, 71: protective soft cover, 72: connecting iron ring, 81: suction frame, 82: air guide pipe, 83: fan, 84: exhaust hole, 85: refrigeration chip, 86: heating pipe, 87: communicating pipe, 91: connecting ring, 92: annular magnet 1, 10: annular magnet 2, 100: hydraulic oil pipe. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0030] A high wear-resistant and anti-extrusion hydraulic oil pipe strength testing device, as Figures 1 - 5 shown, includes a chassis 1, a connecting frame 2, a door panel 3, a connecting mechanism, a liquid injection mechanism and an extrusion testing mechanism. The top of the chassis 1 is connected to the connecting frame 2. The left and right sides of the front side of the connecting frame 2 are both rotatably connected to the door panel 3. The connecting frame 2 is provided with a connecting mechanism and an extrusion testing mechanism. The chassis 1 is provided with a liquid injection mechanism. The liquid injection mechanism can inject liquid into the hydraulic oil pipe 100. The extrusion testing mechanism is used to extrude the hydraulic oil pipe 100.

[0031] As Figures 2 - 4 shown, the connecting mechanism includes an electric guide rail 41, a connecting plate 42, a fixing stud 1 43 and a pressure gauge 44. Electric guide rails 41 are installed on the left and right sides inside the connecting frame 2. A connecting plate 42 is connected between the moving bodies of the two electric guide rails 41. The electric guide rail 41 can drive the connecting plate 42 to move up and down. The middle of the top of the connecting plate 42 is installed with a pressure gauge 44. The bottom of the connecting plate 42 is connected with a fixing stud 1 43. The sensing end of the pressure gauge 44 passes through the fixing stud 1 43.

[0032] As Figures 2 - 4As shown in the figure, the liquid injection mechanism includes a sunken box body 51, a partition plate 52, a fixing stud two 53, a water pump 54 and a liquid injection pipe 55. A sunken box body 51 is arranged at the lower part inside the chassis 1. The sunken box body 51 is filled with hydraulic oil. The top of the sunken box body 51 is connected with a partition plate 52. A plurality of liquid leakage holes are evenly spaced on the partition plate 52. The middle of the top of the partition plate 52 is connected with a fixing stud two 53. The inside of the fixing stud two 53 is hollow. A water pump 54 is installed in the sunken box body 51. The liquid outlet end of the water pump 54 is communicated with a liquid injection pipe 55. The liquid injection pipe 55 is communicated with the inside of the fixing stud two 53.

[0033] As Figures 2 - 5 shown in the figure, the extrusion test mechanism includes an air pump 61, an air injection pipe 62, a sliding rod 63, a sliding frame 64, a lead screw motor 65, a cylinder block 66, an extrusion column 67, an elastic member 68 and a solenoid valve 69. An air pump 61 is installed on the right side of the top of the connecting frame 2. A sliding rod 63 is slidably connected to the connecting plate 42. A sliding frame 64 is installed at the bottom of the sliding rod 63. The sliding rod 63 can slide up and down along the connecting plate 42. A lead screw motor 65 is installed on the connecting plate 42. The lead screw of the lead screw motor 65 is rotatably connected to the sliding frame 64, so that when the lead screw motor 65 operates, it can drive the sliding frame 64 to move up and down through the lead screw thereon. Cylinder blocks 66 are installed on both the left and right sides of the sliding frame 64. An extrusion column 67 is slidably connected in the cylinder block 66. An elastic member 68 is connected between the extrusion column 67 and the cylinder block 66. The elastic member 68 is a connecting spring. A solenoid valve 69 is arranged at the bottom of the cylinder block 66. The air injection pipe 62 is communicated with the cylinder block 66.

[0034] When it is necessary to test the strength of the hydraulic oil pipe 100, this device can be used. When in use, the two ends of the hydraulic oil pipe 100 can be screwed into the fixing stud one 43 and the fixing stud two 53 respectively through threads. After the operation is completed, the water pump 54 can be controlled to operate to extract the hydraulic oil cake in the sinking box body 51 and send it into the hydraulic oil pipe 100 through the liquid injection pipe 55 and the fixing stud two 53. The pressure gauge 44 can then measure the pressure inside the oil pipe, so as to achieve the effect of testing the strength of the hydraulic oil pipe 100. When conducting the pressure test, the air pump 61 can also be controlled to operate to inject gas into the cylinder body 66 through the air injection pipe 62. The gas will push the extrusion column 67 to move, so that the two extrusion columns 67 move away from each other, and the elastic member 68 is compressed. After inflating for a period of time, the solenoid valve 69 can be controlled to open for air release. When the solenoid valve 69 releases air, the air pump 61 is controlled to close. At this time, the gas is discharged, and under the action of the elastic member 68, the extrusion column 67 resets to be able to extrude the hydraulic oil pipe 100, so as to test the anti-extrusion strength of the hydraulic oil pipe 100. In this way, the strength test and extrusion test of the hydraulic oil pipe 100 can be realized simultaneously. During the actual test process, the lead screw motor 65 can be controlled to operate to drive the lead screw thereon to move up and down, so as to drive the sliding frame 64 to move up and down, so as to adjust the up and down positions of the extrusion column 67 and adjust the position of extruding the hydraulic oil pipe 100, so as to facilitate the test of the strength of different positions on the hydraulic oil pipe 100. At the same time, the electric guide rail 41 can be controlled to drive the connecting plate 42 to lift according to the different lengths of the hydraulic oil pipe 100, so as to adjust the distance between the fixing stud one 43 and the fixing stud two 53.

[0035] As Figure 6 and Figure 7 shown, it also includes a protection mechanism. The protection mechanism includes a protection soft cover 71 and a connecting iron ring 72. The bottom of the connecting plate 42 is connected with a protection soft cover 71. The protection soft cover 71 covers the fixing stud one 43 and the fixing stud two 53. The bottom of the protection soft cover 71 is provided with a connecting iron ring 72.

[0036] When testing the hydraulic oil pipe 100, the protection soft cover 71 can be pulled down through the connecting iron ring 72, so that the protection soft cover 71 covers the hydraulic oil pipe 100 during the test process. If the hydraulic oil pipe 100 bursts during the test process, the protection soft cover 71 can block the hydraulic oil in the hydraulic oil pipe 100 to avoid the situation of hydraulic oil splashing everywhere during the test.

[0037] As Figures 8 - 10As shown in the figure, it further includes a temperature control mechanism. The temperature control mechanism includes an air suction frame 81, a guide air pipe 82, a connecting pipe 87, a fan 83, a refrigeration sheet 85 and a heating pipe 86. Two air suction frames 81 are connected to the upper part of the rear side of the connecting frame 2. Both of the two air suction frames 81 are communicated with a connecting pipe 87. A one-way valve is arranged at the connecting pipe 87. A guide air pipe 82 is communicated between the two connecting pipes 87. The guide air pipe 82 passes through the connecting plate 42 and is communicated with the inside of the protective soft cover 71. A fan 83 is installed at the air suction frame 81. A heating pipe 86 is installed inside the left air suction frame 81, and a refrigeration sheet 85 is installed inside the right air suction frame 81. Two exhaust holes are opened in the middle of the partition plate 52. When the protective soft cover 71 moves downward, it can cover the exhaust holes. When adding gas into the protective soft cover 71, the excess gas will be discharged through the exhaust holes.

[0038] During the test, the operation of the refrigeration sheet 85 can be controlled, and then the operation of the fan 83 close to the refrigeration sheet 85 can be controlled. The cold air is injected into the protective soft cover 71 through the guide air pipe 82 and the connecting pipe 87, so that the hydraulic oil pipe 100 becomes cold, simulating a low-temperature environment for testing. The operation of the heating pipe 86 can also be controlled, and then the operation of the fan 83 close to the heating pipe 86 can be controlled. The hot air is injected into the protective soft cover 71 through the guide air pipe 82 and the connecting pipe 87, so that the hydraulic oil pipe 100 is heated up, simulating a high-temperature environment for testing. In this way, through the cooperation of the refrigeration sheet 85 and the heating pipe 86, the effects of simulating high-temperature and low-temperature environment tests can be achieved to simulate the strength of the hydraulic oil pipe 100 used in different environments.

[0039] As Figure 11 shown in the figure, it further includes a fixing mechanism. The fixing mechanism includes a connecting ring 91 and a first annular magnet 92. The middle of the bottom of the connecting plate 42 is connected with a connecting ring 91, and the bottom of the connecting ring 91 is connected with a first annular magnet 92.

[0040] As Figure 12 and Figure 13 shown in the figure, it further includes a second annular magnet 10. Two second annular magnets 10 are connected to the top of the partition plate 52. The second annular magnet 10 can attract the connecting iron ring 72.

[0041] After the test is completed, pull the connecting iron ring 72 upward to retract the protective soft cover 71. When the connecting iron ring 72 moves upward, it can contact the first annular magnet 92, and the connecting iron ring 72 is attracted by the first annular magnet 92. During the test, the connecting iron ring 72 can be pulled downward, and the cover and the second annular magnet 10 are magnetically attracted to each other, so as to assist in fixing the connecting iron ring 72.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high wear-resistant and extrusion-resistant hydraulic tubing strength testing device, characterized in that: It includes a chassis (1), a connection frame (2), a door panel (3), a connection mechanism, a liquid injection mechanism, and a extrusion test mechanism. The connection frame (2) is connected to the top of the chassis (1). Door panels (3) are rotatably connected to both sides of the connection frame (2). The connection frame (2) is provided with a connection mechanism and an extrusion test mechanism. The chassis (1) is provided with a liquid injection mechanism. The liquid injection mechanism can inject liquid into the hydraulic oil pipe (100). The extrusion test mechanism is used to extrude the hydraulic oil pipe (100).

2. The high-wear-resistant and extrusion-resistant hydraulic oil pipe strength testing device according to claim 1, characterized in that: The connection mechanism includes an electric guide rail (41), a connection plate (42), a first fixing stud (43), and a pressure gauge (44). Electric guide rails (41) are installed on both sides of the connection frame (2). A connection plate (42) is connected between the moving bodies of the two electric guide rails (41). A pressure gauge (44) is installed in the middle of the top of the connection plate (42). A first fixing stud (43) is connected to the bottom of the connection plate (42). The sensing end of the pressure gauge (44) passes through the first fixing stud (43).

3. A high wear-resistant and anti-extrusion hydraulic oil pipe strength testing device according to claim 2, characterized in that: The liquid injection mechanism includes a sunken box body (51), a partition plate (52), a second fixing stud (53), a water pump (54), and a liquid injection pipe (55). The sunken box body (51) is arranged at the lower part inside the chassis (1). The partition plate (52) is connected to the top of the sunken box body (51). A plurality of liquid leakage holes are evenly spaced and opened on the partition plate (52). A second fixing stud (53) is connected to the middle of the top of the partition plate (52). The inside of the second fixing stud (53) is hollow. A water pump (54) is installed in the sunken box body (51). The liquid outlet end of the water pump (54) is communicated with a liquid injection pipe (55). The liquid injection pipe (55) is communicated with the inside of the second fixing stud (53).

4. A high wear-resistant and anti-extrusion hydraulic tubing strength testing device according to claim 3, characterized in that: The extrusion test mechanism includes an air pump (61), an air injection pipe (62), a sliding rod (63), a sliding frame (64), a lead screw motor (65), a cylinder body (66), an extrusion column (67), an elastic member (68), and a solenoid valve (69). The air pump (61) is installed on the top of the connection frame (2). A sliding rod (63) is slidably connected to the connection plate (42). A sliding frame (64) is installed at the bottom of the sliding rod (63). A lead screw motor (65) is installed on the connection plate (42). The lead screw of the lead screw motor (65) is rotatably connected to the sliding frame (64). Cylinder bodies (66) are installed on both sides of the sliding frame (64). An extrusion column (67) is slidably connected to the inside of the cylinder body (66). An elastic member (68) is connected between the extrusion column (67) and the cylinder body (66). A solenoid valve (69) is arranged at the bottom of the cylinder body (66). The air injection pipe (62) is communicated with the cylinder body (66).

5. A high wear-resistant and anti-extrusion hydraulic tubing strength testing device according to claim 4, characterized in that: It further includes a protection mechanism. The protection mechanism includes a protection soft cover (71) and a connecting iron ring (72). The protection soft cover (71) is connected to the bottom of the connection plate (42). The protection soft cover (71) covers the first fixing stud (43) and the second fixing stud (53). A connecting iron ring (72) is arranged at the bottom of the protection soft cover (71).

6. A high wear-resistant and anti-extrusion hydraulic tubing strength testing device according to claim 5, characterized in that: It further includes a temperature control mechanism. The temperature control mechanism includes an air suction frame (81), a guide air pipe (82), a connecting pipe (87), a fan (83), a refrigeration sheet (85), and a heating pipe (86). Two air suction frames (81) are connected to the connecting frame (2). Connecting pipes (87) are communicated with both of the two air suction frames (81). A one-way valve is arranged at the connecting pipe (87). A guide air pipe (82) is communicated between the two connecting pipes (87). The guide air pipe (82) passes through the connecting plate (42) and is communicated with the inside of the protective soft cover (71). A fan (83) is installed at the air suction frame (81). A heating pipe (86) is installed inside one of the air suction frames (81), and a refrigeration sheet (85) is installed inside the other air suction frame (81). Two exhaust holes are formed in the middle of the partition plate (52). The protective soft cover (71) can move downwards to cover the exhaust holes.

7. A high wear-resistant and anti-extrusion hydraulic tubing strength testing device according to claim 6, characterized in that: It further includes a fixing mechanism. The fixing mechanism includes a connecting ring (91) and a first annular magnet (92). The middle of the bottom of the connecting plate (42) is connected with the connecting ring (91). The bottom of the connecting ring (91) is connected with the first annular magnet (92).

8. A high wear-resistant and anti-extrusion hydraulic oil pipe strength testing device according to claim 7, characterized in that: It further includes a second annular magnet (10). Two second annular magnets (10) are connected to the top of the partition plate (52). The second annular magnets (10) can attract the connecting iron ring (72).

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