Electro-hydraulic servo hydraulic fatigue test device with protection function

Abstract

The utility model discloses an electro-hydraulic servo hydraulic fatigue test device with a protection function, and particularly relates to the field of fatigue test devices, the electro-hydraulic servo hydraulic fatigue test device comprises a workbench, support legs are mounted at the bottom of the workbench, and fixing seats are fixed at the bottoms of the support legs; the device is provided with a protection servo hydraulic fatigue test device, after a positioning protection sleeve moves, the outer side of a metal workpiece can be extruded to deform the metal workpiece, a servo hydraulic fatigue test is carried out on the metal workpiece, a good protection function is achieved, shielding protection is carried out through a positioning support and the positioning protection sleeve, and the service life of the metal workpiece is prolonged. Unexpected conditions such as flying-out of the metal workpiece can be avoided; the device is provided with a protection positioning device, a movable connecting plate drives a positioning mounting block and a movable guide frame to move, the corresponding face of a supporting anti-skid block is tightly attached to the outer side of a metal workpiece, positioning of the metal workpiece in the servo hydraulic fatigue test process is completed, the auxiliary protection effect is achieved, and the servo hydraulic fatigue test is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue testing devices, in particular to an electro-hydraulic servo hydraulic fatigue testing device with a protective function. Background Art

[0002] The scope of metal material testing involves mechanical property testing, chemical composition analysis, metallographic analysis, precision dimension measurement, non-destructive testing, corrosion resistance testing and environmental simulation testing of ferrous metals, non-ferrous metals, mechanical equipment and parts. In order to ensure the quality of metal materials, fatigue testing of metal materials is required through electro-hydraulic servo fatigue testing equipment;

[0003] A Chinese patent discloses an electro-hydraulic servo fatigue test device (authorization announcement number CN 216484429 U). The patented technology includes a test bench, on which a U-shaped frame is fixedly provided, and a liquid separation box is slidably connected to the U-shaped frame, and a scraper and absorbent cotton that are closely attached to the surface of the test bench are installed on the liquid separation box. Compared with the prior art, when the device needs to clean the surface of the test bench after the test, water is supplied to the interior of the liquid separation box through the water supply part, and the surface of the test bench is flushed through the nozzle, and then the drive part is started to drive the scraper to push the waste debris and waste water to move to the opening of the U-shaped frame, and the waste debris and waste water are removed from the test bench through the opening of the U-shaped frame, and the absorbent cotton is used to absorb the residual moisture on the surface of the test bench, thereby facilitating the cleaning of the surface of the test bench, being easy to use, and saving time;

[0004] However, the above-mentioned electro-hydraulic servo fatigue testing device is mainly used for testing concrete test plates during use, and has certain limitations when used for testing metal materials, especially it is not easy to perform hydraulic fatigue tests on cylindrical metal materials, which affects the protective performance during use; therefore, technical personnel in this field provide an electro-hydraulic servo hydraulic fatigue testing device with protective function to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to provide an electro-hydraulic servo hydraulic fatigue testing device with a protective function to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an electro-hydraulic servo hydraulic fatigue test device with a protective function, comprising a workbench, a support leg is installed at the bottom of the workbench, a fixing seat is fixed at the bottom of the support leg, a main control box is arranged at the bottom of the workbench, a protective servo hydraulic fatigue test device is installed on the top of the workbench, a nozzle bracket is fixed on the top of the workbench, a mounting bracket is installed on the outside of the nozzle bracket, a positioning bracket is fixed on the outside of the mounting bracket, and a metal workpiece penetrating the bottom thereof is movably inserted at the top of the positioning bracket;

[0007] The protective servo hydraulic fatigue test device includes a connecting bracket, a servo push rod is fixed on one side of the connecting bracket, a reinforcement support block is arranged at the bottom of the servo push rod, a movable connecting block is fixed on the outer side of the output shaft of the servo push rod, a movable mounting plate is arranged at the bottom of the movable connecting block, and a guide sleeve is installed at the bottom of the movable mounting plate.

[0008] As a further solution of the utility model: a guide rail is fixed on the top of the workbench, a supporting metal frame is arranged on the top of the movable mounting plate, a positioning protective sleeve is fixed on one side of the supporting metal frame, a sliding fitting component is provided between the guide sleeve and the guide rail, and a protective positioning device is installed on the outer side of the positioning protective sleeve.

[0009] As a further solution of the utility model: a through hole is opened inside the connecting bracket, and the size of the through hole is adapted to the output shaft of the servo push rod, and the connecting bracket and the reinforcement support block are fixedly connected to the workbench.

[0010] As a further solution of the utility model: the protective positioning device includes an installation shell, a fixed connecting pad is fixed to the inner wall of one side of the installation shell, a reset spring is connected to one side of the fixed connecting pad, one end of the reset spring is connected to a movable connecting plate, a positioning installation block is fixed to one side of the movable connecting plate, a movable guide frame is provided on one side of the positioning installation block, and a supporting anti-sliding block is fixed to one end of the movable guide frame.

[0011] As a further solution of the utility model: a guide moving block is installed on the outer side of the movable connecting plate, a connecting handle is fixed to one side of the guide moving block, and a through groove for accommodating the movement of the guide moving block is opened inside the mounting shell.

[0012] As a further solution of the utility model: a connecting hole is provided inside the positioning protection sleeve, and the size of the connecting hole is adapted to the size of the movable guide frame.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] 1. This device is equipped with a protective servo hydraulic fatigue test device. The metal workpiece can penetrate the corresponding positioning protective cover at the same time. Then the servo push rod can be started, and the output shaft of the servo push rod can drive the mobile connection block to move. When the mobile connection block moves, the mobile mounting plate can move together, and the mobile mounting plate can drive the supporting metal frame and the positioning protective cover to move. After the positioning protective cover moves, it can squeeze the outside of the metal workpiece and deform the metal workpiece, so as to perform a servo hydraulic fatigue test on the metal workpiece. In addition, it has a good protective function. Through the positioning bracket and the positioning protective cover for shielding and protection, it can avoid accidents such as the metal workpiece flying out;

[0015] 2. This device is provided with a protective positioning device. When the metal workpiece is inserted into the positioning protective cover, the mounting shell and the positioning protective cover are fixedly connected. The reset spring on the outside of the fixed connection pad pushes the movable connecting plate to move, so that the movable connecting plate drives the positioning mounting block and the movable guide frame to move, so that the corresponding surface of the supporting anti-sliding block is tightly attached to the outside of the metal workpiece, thereby completing the positioning of the metal workpiece during the servo hydraulic fatigue test, and playing a role of auxiliary protection, which is beneficial to the servo hydraulic fatigue test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the nozzle bracket structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the protective servo hydraulic fatigue test device of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the protective positioning device of the utility model;

[0021] In the figure: 1. workbench; 2. support leg; 3. fixed seat; 4. main control box; 5. protective servo hydraulic fatigue experimental device; 51. connecting bracket; 52. servo push rod; 53. reinforcement support block; 54. movable connecting block; 55. movable mounting plate; 56. guide sleeve; 57. guide rail; 58. support metal frame; 59. positioning protection cover; 6. nozzle bracket; 7. protective positioning device; 71. installation shell; 72. fixed connection pad; 73. reset spring; 74. movable connecting plate; 75. positioning mounting block; 76. movable guide frame; 77. support anti-sliding block; 78. guide moving block; 79. connecting handle; 8. metal workpiece; 9. mounting bracket; 10. positioning bracket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 3 The utility model provides an electro-hydraulic servo hydraulic fatigue test device with a protective function, comprising a workbench 1, a support leg 2 is installed at the bottom of the workbench 1, a fixing seat 3 is fixed at the bottom of the support leg 2, a main control box 4 is arranged at the bottom of the workbench 1, a protective servo hydraulic fatigue test device 5 is installed on the top of the workbench 1, a nozzle bracket 6 is fixed on the top of the workbench 1, a mounting bracket 9 is installed on the outside of the nozzle bracket 6, a positioning bracket 10 is fixed on the outside of the mounting bracket 9, and a metal workpiece 8 that runs through the bottom of the positioning bracket 10 is movably inserted at the top of the positioning bracket 10;

[0024] The protective servo hydraulic fatigue experimental device 5 includes a connecting bracket 51, a servo push rod 52 is fixed to one side of the connecting bracket 51, a reinforcing support block 53 is arranged at the bottom of the servo push rod 52, a through hole is opened inside the connecting bracket 51, and the size of the through hole is adapted to the output shaft of the servo push rod 52, the connecting bracket 51 and the reinforcing support block 53 are both fixedly connected to the workbench 1, a movable connecting block 54 is fixed to the outer side of the output shaft of the servo push rod 52, a movable mounting plate 55 is arranged at the bottom of the movable connecting block 54, a guide sleeve 56 is installed at the bottom of the movable mounting plate 55, a guide rail 57 is fixed to the top of the workbench 1, a supporting metal frame 58 is arranged at the top of the movable mounting plate 55, a positioning protective sleeve 59 is fixed to one side of the supporting metal frame 58, a sliding fitting component is provided between the guide sleeve 56 and the guide rail 57, and a protective positioning device 7 is installed on the outer side of the positioning protective sleeve 59.

[0025] During the use of the device, when the fatigue test of the cylindrical metal workpiece 8 is carried out, the metal workpiece 8 can be passed through the corresponding positioning bracket 10. At this time, the metal workpiece 8 can pass through the corresponding positioning protective sleeve 59 at the same time. The positioning protective sleeve 59 plays a role of shielding and protection. The connecting bracket 51 and the reinforcement support block 53 can stably support the bottom of the servo push rod 52. Then the servo push rod 52 can be started, and the mobile connecting block 54 can be driven to move by the output shaft of the servo push rod 52. When the mobile connecting block 54 moves, the mobile mounting plate 55 can be moved together. The guide sleeve 56 at the bottom of the mobile mounting plate 55 can move on the outside of the corresponding guide track 57, thereby achieving the guiding function. Then the mobile mounting plate 55 drives the supporting metal frame 58 and the positioning protective sleeve 59 to move. After the positioning protective sleeve 59 moves, it can squeeze the outside of the metal workpiece 8 and deform the metal workpiece 8, thereby performing a servo hydraulic fatigue test on the metal workpiece 8. In addition, it has a good protection function. The positioning bracket 10 and the positioning protective sleeve 59 are used for shielding and protection to avoid accidents such as the metal workpiece 8 flying out.

[0026] See also Figure 1 and Figure 4 The utility model provides an electro-hydraulic servo hydraulic fatigue testing device with a protective function. The protective positioning device 7 includes a mounting shell 71. A fixed connecting pad 72 is fixed to the inner wall of one side of the mounting shell 71. A reset spring 73 is connected to one side of the fixed connecting pad 72. One end of the reset spring 73 is connected to a movable connecting plate 74. A positioning mounting block 75 is fixed to one side of the movable connecting plate 74. A movable guide frame 76 is arranged on one side of the positioning mounting block 75. A connecting hole is provided inside the positioning protection sleeve 59, and the size of the connecting hole is adapted to the size of the movable guide frame 76. A supporting anti-sliding block 77 is fixed to one end of the movable guide frame 76. A guide moving block 78 is installed on the outer side of the movable connecting plate 74. A connecting handle 79 is fixed to one side of the guide moving block 78. A through groove for accommodating the movement of the guide moving block 78 is provided inside the mounting shell 71.

[0027] During use of the device, after the metal workpiece 8 is inserted into the positioning protection sleeve 59, the mounting shell 71 is fixedly connected to the positioning protection sleeve 59, and the movable connecting plate 74 is pushed to move by the reset spring 73 on the outside of the fixed connecting pad 72, so that the movable connecting plate 74 drives the positioning mounting block 75 and the movable guide frame 76 to move, and the guide moving block 78 on the outside of the movable connecting plate 74 plays a guiding role. Turning the connecting handle 79 can also drive the guide moving block 78 and the movable connecting plate 74 to move, so that the corresponding surface of the support anti-sliding block 77 is tightly attached to the outside of the metal workpiece 8, thereby completing the positioning of the metal workpiece 8 during the servo hydraulic fatigue test, and playing an auxiliary protection role, which is beneficial to the servo hydraulic fatigue test.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electro-hydraulic servo-hydraulic fatigue testing device with a protective function, comprising a workbench (1), characterized in that: A support leg (2) is installed at the bottom of the workbench (1), a fixed seat (3) is fixed at the bottom of the support leg (2), a main control box (4) is arranged at the bottom of the workbench (1), a protective servo hydraulic fatigue test device (5) is installed at the top of the workbench (1), a nozzle bracket (6) is fixed at the top of the workbench (1), a mounting bracket (9) is installed on the outer side of the nozzle bracket (6), a positioning bracket (10) is fixed on the outer side of the mounting bracket (9), and a metal workpiece (8) that passes through the bottom of the positioning bracket (10) is movably inserted at the top of the positioning bracket (10); The protective servo hydraulic fatigue test device (5) comprises a connecting bracket (51), a servo push rod (52) is fixed on one side of the connecting bracket (51), a reinforcing support block (53) is arranged at the bottom of the servo push rod (52), a movable connecting block (54) is fixed on the outer side of the output shaft of the servo push rod (52), a movable mounting plate (55) is arranged at the bottom of the movable mounting plate (55), and a guide sleeve (56) is installed at the bottom of the movable mounting plate (55).

2. The electro-hydraulic servo hydraulic fatigue testing device with protection function according to claim 1 is characterized in that: A guide rail (57) is fixed on the top of the workbench (1), a supporting metal frame (58) is arranged on the top of the movable mounting plate (55), a positioning protective sleeve (59) is fixed on one side of the supporting metal frame (58), a sliding fitting component is provided between the guide sleeve (56) and the guide rail (57), and a protective positioning device (7) is installed on the outer side of the positioning protective sleeve (59).

3. The electro-hydraulic servo hydraulic fatigue testing device with protective function according to claim 1, characterized in that: A through hole is provided inside the connecting bracket (51), and the size of the through hole is adapted to the output shaft of the servo push rod (52). The connecting bracket (51) and the reinforcing support block (53) are both fixedly connected to the workbench (1).

4. The electro-hydraulic servo hydraulic fatigue testing device with protection function according to claim 2 is characterized in that: The protective positioning device (7) comprises a mounting shell (71), a fixed connection pad (72) is fixed to an inner wall of one side of the mounting shell (71), a reset spring (73) is connected to one side of the fixed connection pad (72), one end of the reset spring (73) is connected to a movable connection plate (74), a positioning mounting block (75) is fixed to one side of the movable connection plate (74), a movable guide frame (76) is provided on one side of the positioning mounting block (75), and a supporting anti-sliding block (77) is fixed to one end of the movable guide frame (76).

5. The electro-hydraulic servo hydraulic fatigue testing device with protection function according to claim 4 is characterized in that: A guide moving block (78) is installed on the outer side of the movable connecting plate (74), a connecting handle (79) is fixed on one side of the guide moving block (78), and a through groove for accommodating the movement of the guide moving block (78) is provided inside the mounting shell (71).

6. The electro-hydraulic servo hydraulic fatigue testing device with protection function according to claim 4, characterized in that: A connecting hole is provided inside the positioning protection sleeve (59), and the size of the connecting hole matches the size of the movable guide frame (76).

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