Testing device for impact corrosion and wear resistance

Abstract

The invention discloses an impact corrosion and wear resistance testing device which comprises a box body, a rotary drum body, a first sleeve, a telescopic piece, a gear set and an impact assembly, a first lifting frame, a second lifting frame and a movable clamp table are mounted in the box body; one end of the rotary drum body is rotationally connected to the first lifting frame, a plurality of polishing balls are rotationally connected to the outer wall of the rotary drum body, and two impact windows arranged at intervals are formed in the outer wall of the rotary drum body; the eccentric driving assembly is mounted on the second lifting frame; the first sleeve is rotationally connected to the first eccentric wheel; the telescopic piece is mounted on the first eccentric wheel through a vertical plate; the gear set is rotationally connected to one end of the inner wall of the drum body; a positioning block is mounted on the gear set; the impact assembly comprises a positioning plate and two crank connecting rods. According to the invention, two abrasion mechanisms of impact and ball milling can be simultaneously simulated for the workpiece to be tested, the impact corrosion and abrasion resistance of the material can be comprehensively evaluated, and the testing efficiency and the testing accuracy are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of test equipment and relates to a test device resistant to impact, corrosion and wear. Background Art

[0002] In the research and application of concrete and metal composites, it is crucial to evaluate the impact corrosion and wear resistance of materials. However, existing test methods often cannot accurately simulate the impact corrosion and wear process in actual working environments, or the test equipment is complex in structure and cumbersome in operation, resulting in inaccurate test results or low test efficiency.

[0003] Traditional impact corrosion and wear test devices can usually only perform impact tests or ball milling tests separately, and cannot simulate two wear mechanisms at the same time, so they cannot fully evaluate the performance of materials. In addition, these devices usually require manual operation during the test, which not only increases the difficulty of operation, but also may introduce human errors, reducing test efficiency and test accuracy. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a testing device for impact corrosion and wear resistance, which eccentrically rotates to apply an impact load to the workpiece to be tested, and two impact hammers are periodically extended along two impact windows to impact the workpiece to be tested, and ball milling is performed at the same time, so as to complete a comprehensive evaluation of the impact corrosion and wear resistance of the material in a relatively short time.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a test device for impact corrosion and wear resistance, comprising: A box body, in which a first lifting frame, a second lifting frame and a movable fixture table for clamping a workpiece to be measured are installed; A rotating drum body, one end of which is rotatably connected to the first lifting frame via a first eccentric wheel, one end of which is provided with a through hole, a plurality of grinding balls are rotatably connected to the outer wall of the rotating drum body, and the outer wall of the rotating drum body is provided with two impact windows arranged at intervals; An eccentric drive assembly, the eccentric drive assembly is mounted on the second lifting frame, and the eccentric drive assembly is drivingly connected to the drum body; a first sleeve, the first sleeve being rotatably connected to the first eccentric wheel and being covered outside the through hole; a telescopic member, the telescopic member being mounted on the first eccentric wheel via a vertical plate, and a driving rod being mounted on the telescopic end of the telescopic member via a coupling; A gear set, the gear set is rotatably connected to one end of the inner wall of the drum body, and the gear set is meshed with the inner wall of the drum body for transmission; a positioning block is installed on the gear set, and the positioning block is detachably connected to one end of the driving rod; An impact assembly, the impact assembly comprising a positioning plate and two crank connecting rods, one end of the positioning plate is fixedly connected to the vertical plate, and the other end passes through the first sleeve and the through hole and extends into the rotating cylinder body; the two crank connecting rods are respectively hinged at the top and bottom of the outer wall of the driving rod, and the rotating shaft of the crank connecting rod is slidably connected to the positioning plate; Among them, an impact hammer is installed at one end of the crank connecting rod, and the two impact hammers are respectively arranged opposite to the two impact windows; the workpiece to be measured is located directly below the impact window.

[0006] According to a test device for impact corrosion and wear resistance provided by the present invention, the positioning plate comprises: An annular positioning plate, the annular positioning plate is located in the drum body; the annular positioning plate is provided with two slide grooves, the slide grooves are provided along the diameter direction of the annular positioning plate; A second sleeve, the second sleeve is fixedly mounted on one end of the positioning annular plate; the second sleeve passes through the first sleeve and the through hole, and is fixedly connected to the vertical plate; Wherein, the telescopic member is located in the second sleeve, and the driving rod passes through the second sleeve and the annular positioning plate; the two rotating shafts of the two crank connecting rods are respectively slidably connected to the two sliding grooves.

[0007] According to the impact corrosion wear resistance test device provided by the present invention, the crank connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod which are hinged end to end in sequence, and one end of each of the first connecting rods is hinged to the top and bottom of the outer wall of the driving rod respectively; The impact hammer is fixedly mounted on one end of the third connecting rod away from the second connecting rod, and a limiting rod is mounted on the hinge shaft of the second connecting rod and the third connecting rod, and the two limiting rods are respectively slidably connected to the two sliding grooves.

[0008] According to a test device for impact corrosion and wear resistance provided by the present invention, the driving rod comprises: A rod body, one end of which is mounted on the telescopic end of the telescopic member through the coupling; the rod body passes through the second sleeve and the annular positioning plate; A positioning seat, the positioning seat is fixedly mounted on an end of the rod body away from the coupling; Positioning protrusions, wherein a plurality of positioning protrusions are provided, and the plurality of positioning protrusions are fixedly connected to the end surface of the positioning seat; An articulated sleeve, wherein the articulated sleeve is fixedly mounted on the outer wall of the rod body, and one end of the two first connecting rods is respectively hinged on the top and bottom of the outer wall of the articulated sleeve; Wherein, a plurality of positioning grooves are formed on the positioning block, and the plurality of positioning grooves are respectively engaged with the plurality of positioning protrusions.

[0009] According to a test device for impact corrosion and wear resistance provided by the present invention, the eccentric drive assembly comprises: A driving motor, wherein the driving motor is installed at a lifting end of the second lifting frame; a second eccentric wheel, the second eccentric wheel being mounted on the lifting end of the second lifting frame through a bearing seat; A driving shaft, wherein the driving shaft is fixedly mounted on the second eccentric wheel, and the output shaft of the driving motor is drivingly connected to the driving shaft; The third sleeve is fixedly mounted on one end of the drum body away from the through hole; the third sleeve is rotatably connected to the second eccentric wheel; the third sleeve is connected to the drive shaft through a chain transmission.

[0010] According to a test device for impact corrosion and wear resistance provided by the present invention, the inner wall of the drum body is provided with an inner gear ring; the gear set includes a driving gear and two transmission gears, the two transmission gears are meshed for transmission, and the driving gear and the two transmission gears are rotatably connected to one end of the inner wall of the drum body through a gear shaft; the driving gear is meshed with one of the transmission gears, and the other transmission gear is meshed with the inner gear ring; the positioning block is fixedly installed at the center of one end of the driving gear.

[0011] According to a test device for impact corrosion and wear resistance provided by the present invention, the mobile fixture table comprises: A lead screw assembly, the lead screw assembly being mounted on the inner bottom wall of the box body; A moving platform, the moving platform is fixedly mounted on the sliding sleeve of the lead screw assembly, and the moving platform is slidably connected to the inner bottom wall of the box body; A fixture is detachably connected to the top surface of the moving platform, and is used to clamp the workpiece to be measured.

[0012] According to the impact corrosion wear resistance test device provided by the present invention, the first lifting frame includes a first cylinder, the second lifting frame includes a second cylinder, the first cylinder and the second cylinder are installed side by side on the inner bottom wall of the box; the first cylinder is installed with a first bearing plate at the piston end, and the second cylinder is installed with a second bearing plate at the piston end; The first eccentric wheel is rotatably connected to the first bearing plate via a bearing seat, and the second eccentric wheel is mounted on the second bearing plate via a bearing seat; the driving motor is fixedly mounted on the second bearing plate.

[0013] According to an impact corrosion and wear resistance testing device provided by the present invention, the telescopic member includes an electric push rod installed on the vertical plate, one end of the rod body is installed on the telescopic end of the electric push rod through the coupling, and the electric push rod is located in the second sleeve.

[0014] According to the impact corrosion and wear resistance testing device provided by the present invention, a temperature sensor and a humidity sensor are installed in the box body, and a lighting part is installed on the inner top wall of the box body.

[0015] The main beneficial effects of the present invention are: The workpiece to be tested can be selected as a concrete plate or a metal composite material plate according to the test requirements. The first lifting frame and the second lifting frame are used to drive the drum body to rise and fall, so that the test height can be adjusted according to the size of the workpiece to be tested. The workpiece to be tested can be driven to move horizontally by the mobile fixture table, and then the impact and ball milling simulation tests can be carried out on multiple positions on the surface of the workpiece to be tested, which improves the convenience of the test.

[0016] The eccentric drive assembly drives the drum body to rotate eccentrically, thereby applying an impact load to the workpiece to be tested to realize an impact test; at the same time, through the rotation of the drum body and the meshing transmission of the gear set, the driving rod can drive the two crank connecting rods and the two impact hammers to extend periodically along the two impact windows respectively, thereby realizing two impact tests on the workpiece to be tested; and the grinding spheres on the outer wall of the drum body also rotate accordingly to realize a ball milling test, which can simulate both impact and ball milling wear mechanisms at the same time, thereby completing a comprehensive evaluation of the material's impact corrosion and wear resistance in a relatively short time, thereby improving the test efficiency and reducing the introduction of human errors, thereby improving the accuracy of the test results.

[0017] The detachable connection design between the positioning block and the driving rod can realize unlocking and locking of the driving rod; when locked, the driving rod rotates with the drum body, thereby driving the two crank connecting rods to move, and the rotating shaft of the crank connecting rod is slidably connected to the positioning plate, so that the two impact hammers can be periodically extended along the two impact windows respectively, and the eccentric rotation of the drum body can carry out impact tests and ball milling tests, which simplifies the test operation process and improves the flexibility and convenience of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0021] Figure 3 for Figure 1A partial enlarged view of point B in the middle.

[0022] Figure 4 It is a schematic diagram of the structure of the crank connecting rod in the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the gear set in the present invention.

[0024] In the figure: 1, box; 2, workpiece to be measured; 3, through hole; 4, grinding ball; 5, impact window; 6, first sleeve; 7, positioning block; 8, annular positioning plate; 9, slide groove; 10, second sleeve; 11, vertical plate; 12, first connecting rod; 13, second connecting rod; 14, third connecting rod; 15, limit rod; 16, impact hammer; 17, rod body; 18, positioning seat; 19, positioning convex block; 20, positioning groove; 21, drum body; 22, inner Ring gear; 23. Drive gear; 24. Transmission gear; 25. Screw assembly; 26. Moving table; 27. Clamp; 28. First cylinder; 29. ​​Second cylinder; 30. First bearing plate; 31. Second bearing plate; 32. Drive motor; 33. Electric push rod; 34. Temperature sensor; 35. Humidity sensor; 36. Lighting unit; 37. Control system; 38. Warning light; 39. Outrigger; 40. First eccentric wheel; 41. Second eccentric wheel. DETAILED DESCRIPTION

[0025] like Figure 1~Figure 5 A test device for impact corrosion and wear resistance.

[0026] Embodiment 1, It comprises a box body 1, in which a first lifting frame, a second lifting frame and a movable fixture table for clamping a workpiece 2 to be measured are installed; The drum body 21 has one end rotatably connected to the first lifting frame via a first eccentric wheel 40, a through hole 3 is provided at one end of the drum body 21, a plurality of grinding balls 4 are rotatably connected to the outer wall of the drum body 21, and two impact windows 5 are provided at intervals on the outer wall of the drum body 21.

[0027] An eccentric drive assembly, which is mounted on the second lifting frame and is in transmission connection with the drum body 21; The first sleeve 6 is rotatably connected to the first eccentric wheel 40 and is covered outside the through hole 3; the telescopic member is installed on the first eccentric wheel 40 through the vertical plate 11, and the telescopic end of the telescopic member is installed with a driving rod through a coupling.

[0028] The gear set is rotatably connected to one end of the inner wall of the drum body 21, and the gear set is meshed with the inner wall of the drum body 21 for transmission; a positioning block 7 is installed on the gear set, and the positioning block 7 is detachably connected to one end of the driving rod.

[0029] The impact assembly includes a positioning plate and two crank connecting rods. One end of the positioning plate is fixedly connected to the vertical plate 11, and the other end passes through the first sleeve 6 and the through hole 3 and extends into the drum body 21. The two crank connecting rods are respectively hinged at the top and bottom of the outer wall of the driving rod, and the rotating shaft of the crank connecting rod is slidably connected to the positioning plate. An impact hammer 16 is installed at one end of the crank connecting rod, and two impact hammers 16 are respectively arranged opposite to the two impact windows 5 ; the workpiece 2 to be measured is located directly below the impact window 5 .

[0030] Embodiment 2, The workpiece 2 to be tested can be selected as a concrete plate or a metal composite material plate according to the test requirements. The first lifting frame and the second lifting frame can drive the drum body 21 to rise and fall, so that the test height can be adjusted according to the size of the workpiece to be tested. The workpiece 2 to be tested can be driven to translate by the mobile fixture table, and then the impact and ball milling simulation tests can be performed on multiple positions on the surface of the workpiece 2 to be tested, thereby improving the convenience of the test.

[0031] Embodiment 3, The eccentric driving assembly drives the drum body 21 to rotate eccentrically, thereby applying an impact load to the workpiece 2 to achieve an impact test; at the same time, through the rotation of the drum body 21 and the meshing transmission of the gear set, the driving rod can drive the two crank connecting rods and the two impact hammers 16 to extend periodically along the two impact windows 5 respectively, thereby achieving two impact tests on the workpiece 2 to be tested; at the same time, the grinding ball 4 on the outer wall of the drum body 21 also rotates accordingly, thereby achieving a ball milling test, which can simulate both impact and ball milling wear mechanisms at the same time, thereby completing a comprehensive evaluation of the material's impact corrosion and wear resistance in a relatively short time, thereby improving the test efficiency and reducing the introduction of human errors, thereby improving the accuracy of the test results.

[0032] Embodiment 4, The detachable connection design between the positioning block 7 and the driving rod can realize unlocking and locking of the driving rod; when locked, the driving rod rotates with the drum body 21, thereby driving the two crank connecting rods to move, and the rotating shaft of the crank connecting rod is slidably connected to the positioning plate, so that the two impact hammers 16 can be periodically extended along the two impact windows 5 respectively, and the eccentric rotation of the drum body 21 can perform impact tests and ball milling tests, which simplifies the test operation process and improves the flexibility and convenience of the test.

[0033] Embodiment 5, When the driving rod is unlocked, the driving rod does not rotate with the rotation of the drum body 21. At this time, the positions of the two crank connecting rods and the two impact hammers 16 are fixed and can be retracted into the drum body 21 at the same time to carry out a separate ball milling test, or the two impact hammers 16 can remain extended at the same time to carry out a separate impact test.

[0034] Embodiment 6, The positioning plate includes: The annular positioning plate 8 is located in the drum body 21; the annular positioning plate 8 is provided with two slide grooves 9, and the slide grooves 9 are provided along the diameter direction of the annular positioning plate 8; The second sleeve 10 is fixedly mounted on one end of the positioning annular plate; the second sleeve 10 passes through the first sleeve 6 and the through hole 3, and is fixedly connected to the vertical plate 11; Among them, the telescopic member is located in the second sleeve 10, and the driving rod passes through the second sleeve 10 and the annular positioning plate 8; the two rotating shafts of the two crank connecting rods are respectively slidably connected with the two sliding grooves 9; the sliding grooves 9 are used to guide the sliding of the crank connecting rods.

[0035] The crank connecting rod comprises a first connecting rod 12, a second connecting rod 13 and a third connecting rod 14 which are hinged end to end in sequence, and one end of the two first connecting rods 12 is hinged to the top and bottom of the outer wall of the driving rod respectively; The impact hammer 16 is fixedly mounted on one end of the third connecting rod 14 away from the second connecting rod 13, and a limit rod 15 is mounted on the hinge shaft of the second connecting rod 13 and the third connecting rod 14, and the two limit rods 15 are slidably connected to the two slide grooves 9 respectively; Driven by the driving rod, the first connecting rod 12 makes reciprocating motion, and through the hinge relationship between the second connecting rod 13 and the third connecting rod 14, since the two limit rods 15 are respectively slidably connected with the two slide grooves 9, the impact hammer 16 is periodically extended and retracted along the slide groove 9; by adjusting the length of the first connecting rod 12, the second connecting rod 13 and the third connecting rod 14, the rotation rate of the drum body and the transmission ratio of the gear set, the impact hammer 16 is periodically extended along the impact window 5, thereby realizing the simultaneous implementation of the ball milling test and the impact test.

[0036] Embodiment 7, The drive rod includes: A rod body 17, one end of which is mounted on the telescopic end of the telescopic member through a coupling; the rod body 17 passes through the second sleeve 10 and the annular positioning plate 8; A positioning seat 18, the positioning seat 18 is fixedly mounted on an end of the rod body 17 away from the coupling; Positioning protrusions 19, a plurality of positioning protrusions 19 are provided, and a plurality of positioning protrusions 19 are fixedly connected to the end surface of the positioning seat 18; An articulated sleeve, which is fixedly mounted on the outer wall of the rod body 17, and one end of the two first connecting rods 12 is respectively hinged on the top and bottom of the outer wall of the articulated sleeve; Among them, the positioning block 7 is provided with a plurality of positioning grooves 20, and the plurality of positioning grooves 20 are respectively engaged with the plurality of positioning protrusions 19; The telescopic member drives the rod body 17 to perform a telescopic action, and the positioning seat 18 and the positioning protrusion 19 are used to engage with the positioning groove 20 on the positioning block 7 to achieve locking and unlocking of the driving rod; the positioning groove 20 on the positioning block 7 cooperates with the positioning protrusion 19, and when the positioning protrusion 19 is engaged with the positioning groove 20, the driving rod is locked and rotates with the drum body 21.

[0037] Embodiment 8, The eccentric drive assembly includes: A driving motor 32, wherein the driving motor 32 is mounted at the lifting end of the second lifting frame; A second eccentric wheel 41, the second eccentric wheel 41 is installed at the lifting end of the second lifting frame through a bearing seat; A driving shaft, the driving shaft is fixedly mounted on the second eccentric wheel 41, and the output shaft of the driving motor 32 is drivingly connected to the driving shaft; The third sleeve is fixedly mounted on one end of the drum body 21 away from the through hole 3; the third sleeve is rotatably connected to the second eccentric wheel 41; the third sleeve is connected to the driving shaft through a chain transmission.

[0038] The inner wall of the drum body 21 is provided with an inner gear ring 22; the gear set includes a driving gear 23 and two transmission gears 24, the two transmission gears 24 are meshed for transmission, and the driving gear 23 and the two transmission gears 24 are rotatably connected to one end of the inner wall of the drum body 21 through a gear shaft; the driving gear 23 is meshed with one of the transmission gears 24, and the other transmission gear 24 is meshed with the inner gear ring 22; the positioning block 7 is fixedly installed at the center of one end of the driving gear 23; When the drum body 21 rotates, the driving gear 23 is driven to rotate through the inner gear ring 22 and the two transmission gears 24, so that when the positioning block 7 of the driving gear 23 is locked with the positioning seat 18, the rod body 17 is driven to rotate.

[0039] Embodiment 9, The mobile fixture table includes: A lead screw assembly 25, the lead screw assembly 25 is mounted on the inner bottom wall of the box body 1; A movable platform 26, which is fixedly mounted on the sliding sleeve of the lead screw assembly 25, and is slidably connected to the inner bottom wall of the box body 1; A fixture 27, which is detachably connected to the top surface of the moving platform 26, and is used to clamp the workpiece 2 to be measured; The lead screw assembly 25 is driven by a lead screw motor to make the movable platform 26 slide on the inner bottom wall of the box body 1, driving the fixture 27 and the workpiece 2 to be tested to translate, so as to adjust the position of the impact and ball milling tests; by replacing different types of fixtures 27, it can adapt to workpieces 2 to be tested of different sizes and shapes and adjust the installation angle of the workpiece 2 to be tested to meet different test requirements.

[0040] Embodiment 10, The first lifting frame includes a first cylinder 28, and the second lifting frame includes a second cylinder 29. The first cylinder 28 and the second cylinder 29 are installed side by side on the inner bottom wall of the box body 1; a first bearing plate 30 is installed on the piston end of the first cylinder 28, and a second bearing plate 31 is installed on the piston end of the second cylinder 29; The first eccentric wheel 40 is rotatably connected to the first supporting plate 30 through a bearing seat, and the second eccentric wheel 41 is installed on the second supporting plate 31 through a bearing seat; the driving motor 32 is fixedly installed on the second supporting plate 31; the height of the drum body 21 is adjusted by the first cylinder 28 and the second cylinder 29.

[0041] The telescopic member includes an electric push rod 33 mounted on the vertical plate 11 . One end of the rod body 17 is mounted on the telescopic end of the electric push rod 33 through a coupling. The electric push rod 33 is located in the second sleeve 10 .

[0042] Embodiment 11, A temperature sensor 34 and a humidity sensor 35 are installed in the box body 1 , and a lighting unit 36 ​​is installed on the inner top wall of the box body 1 .

[0043] A control system 37 is installed on the box 1, an alarm light 38 is installed on the top plate of the box 1, and a plurality of legs 39 are installed on the bottom of the box 1; The warning light 38, the lead screw assembly 25, the first cylinder 28, the second cylinder 29, the drive motor, the lighting unit 36, the temperature sensor 34 and the humidity sensor 35 are all electrically connected to the control system 37; The control system 37 receives data from sensors such as the temperature sensor 34 and the humidity sensor 35, and controls the movement of each component according to preset test parameters; when an abnormal situation occurs during the test, the control system 37 will trigger the alarm light 38 to issue an alarm prompt; in addition, the control system 37 can also provide lighting through the lighting unit 36 ​​to facilitate observation of the test process.

[0044] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A test device for impact corrosion and wear resistance, characterized in that: It comprises a housing (1), a movable fixture table, an eccentric drive assembly, a gear set and an impact assembly; the movable fixture table is located at the lower part of a drum body (21) between a first lifting frame and a second lifting frame in the housing (1); a first eccentric wheel (40) and a second eccentric wheel (41) at both ends of the drum body (21) are respectively connected to the first lifting frame and the second lifting frame; the eccentric drive assembly and the gear set are connected to the drum body (21), and the impact assembly is located in the drum body (21); the first lifting frame and the second lifting frame drive the drum body (21) to rise and fall, the eccentric drive assembly drives the drum body (21) to rotate eccentrically, and two impact hammers (16) of the impact assembly periodically extend along two impact windows (5) on the drum body (21).

2. The impact corrosion and wear resistance testing device according to claim 1 is characterized in that: A through hole (3) is provided at one end of the rotating drum body (21); a plurality of grinding balls (4) are rotatably connected to the outer wall of the rotating drum body (21); and two impact windows (5) are provided at intervals on the outer wall of the rotating drum body (21); an inner gear ring (22) is provided on the inner wall of the rotating drum body (21); the gear set comprises a driving gear (23) and two transmission gears (24); the two transmission gears (24) are meshed for transmission, and the driving gear (23) and the two transmission gears (24) are rotatably connected to one end of the inner wall of the rotating drum body (21) via a gear shaft; the driving gear (23) is meshed with one of the transmission gears (24), and the other transmission gear (24) is meshed with the inner gear ring (22); and a positioning block (7) is fixedly mounted at the center of one end of the driving gear (23).

3. The impact corrosion and wear resistance testing device according to claim 1 is characterized in that: The eccentric drive assembly is in transmission connection with the drum body (21); the first sleeve (6) of the eccentric drive assembly is rotatably connected to the first eccentric wheel (40), and the cover is arranged outside the through hole (3); the telescopic member of the eccentric drive assembly is installed on the first eccentric wheel (40) through the vertical plate (11), and the telescopic end of the telescopic member is installed with a driving rod through a coupling; the gear group is rotatably connected to one end of the inner wall of the drum body (21), and the gear group is meshed with the inner wall of the drum body (21) for transmission; a positioning block (7) is installed on the gear group, and the positioning block (7) is detachably connected to one end of the driving rod. The rod body (17) of the driving rod is connected to the telescopic end of the telescopic member through a coupling; the rod body (17) passes through the second sleeve (10) and the annular positioning plate (8); the positioning seat (18) is fixedly mounted on the end of the rod body (17) away from the coupling; a plurality of positioning protrusions (19) are fixedly connected to the end surface of the positioning seat (18); the hinge sleeve is fixedly mounted on the outer wall of the rod body (17), and one end of the two first connecting rods (12) is respectively hinged to the top and bottom of the outer wall of the hinge sleeve; and a plurality of positioning grooves (20) provided on the positioning block (7) are respectively engaged with the plurality of positioning protrusions (19).

4. The impact corrosion and wear resistance testing device according to claim 1 is characterized in that: The impact assembly comprises a positioning plate and two crank connecting rods, one end of the positioning plate is fixedly connected to the vertical plate (11), and the other end of the positioning plate passes through the first sleeve (6) and the through hole (3) of the eccentric drive assembly and extends into the drum body (21); the two crank connecting rods are respectively hinged on the top and bottom of the outer wall of the drive rod, and the rotating shaft of the crank connecting rod is slidably connected to the positioning plate; an impact hammer (16) is installed at one end of the crank connecting rod, and the two impact hammers (16) respectively correspond to the two impact windows (5) on the drum body (21).

5. The impact corrosion and wear resistance testing device according to claim 4 is characterized in that: The annular positioning plate (8) of the positioning plate is located in the rotating drum body (21), and two slide grooves (9) are formed on the annular positioning plate (8), and the slide grooves (9) are formed along the diameter direction of the annular positioning plate (8); the second sleeve (10) of the positioning plate is fixedly mounted on one end of the annular positioning plate (8); the second sleeve (10) passes through the first sleeve (6) and the through hole (3), and is fixedly connected to the vertical plate (11); the telescopic member of the eccentric drive assembly is located in the second sleeve (10), and the drive rod passes through the second sleeve (10) and the annular positioning plate (8); and the two rotating shafts of the two crank connecting rods are respectively slidably connected to the two slide grooves (9).

6. The impact corrosion and wear resistance testing device according to claim 4 is characterized in that: The crank connecting rod comprises a first connecting rod (12), a second connecting rod (13) and a third connecting rod (14) which are hinged end to end in sequence, one end of the two first connecting rods (12) being hinged to the top and bottom of the outer wall of the driving rod respectively; an impact hammer (16) is fixedly mounted on an end of the third connecting rod (14) away from the second connecting rod (13); a limit rod (15) is mounted on the hinge shaft between the second connecting rod (13) and the third connecting rod (14); the two limit rods (15) are slidably connected to the two slide grooves (9) respectively.

7. The impact corrosion and wear resistance testing device according to claim 1 is characterized in that: The drive motor (32) of the eccentric drive assembly is mounted on the lifting end of the second lifting frame; the second eccentric wheel (41) is mounted on the lifting end of the second lifting frame via a bearing seat; the drive shaft is fixedly mounted on the second eccentric wheel (41), and the output shaft of the drive motor (32) is transmission-connected to the drive shaft; the third sleeve is fixedly mounted on an end of the rotating drum body (21) away from the through hole (3); the third sleeve is rotationally connected to the second eccentric wheel (41); and the third sleeve is transmission-connected to the drive shaft via a chain.

8. The impact corrosion and wear resistance testing device according to claim 1 is characterized in that: The lead screw assembly (25) of the mobile fixture table is mounted on the inner bottom wall of the box body (1); the moving table (26) of the mobile fixture table is fixedly mounted on the sliding sleeve of the lead screw assembly (25), and the moving table (26) is slidably connected to the inner bottom wall of the box body (1); and the fixture (27) of the mobile fixture table is detachably connected to the top surface of the moving table (26).

9. The impact corrosion and wear resistance testing device according to claim 1 is characterized in that: The first cylinder (28) of the first lifting frame and the second cylinder (29) of the second lifting frame are mounted side by side on the inner bottom wall of the box body (1); a first bearing plate (30) is mounted on the piston end of the first cylinder (28), and a second bearing plate (31) is mounted on the piston end of the second cylinder (29); the first eccentric wheel (40) is rotatably connected to the first bearing plate (30) via a bearing seat, and the second eccentric wheel (41) is mounted on the second bearing plate (31) via a bearing seat; and the drive motor (32) is fixedly mounted on the second bearing plate (31).

10. The impact corrosion and wear resistance testing device according to claim 1, characterized in that: The telescopic member of the eccentric drive assembly comprises an electric push rod (33) mounted on a vertical plate (11); one end of a rod body (17) is mounted on the telescopic end of the electric push rod (33) via a coupling; the electric push rod (33) is located in the second sleeve (10); a temperature sensor (34) and a humidity sensor (35) are mounted in the box (1); and a lighting unit (36) is mounted on the inner top wall of the box (1).

11. The test method of the impact corrosion wear resistance test device according to any one of claims 1 to 10, characterized in that: The steps include: S1, according to the test requirements, the workpiece (2) to be tested selects a concrete plate or a metal composite material plate, the first lifting frame and the second lifting frame drive the rotating drum body 21 to be raised and lowered, the test height is adjusted according to the size of the workpiece (2) to be tested, and the workpiece (2) to be tested is driven to be translated by the mobile fixture table; S2, the eccentric drive assembly drives the drum body (21) to rotate eccentrically, thereby applying an impact load to the workpiece (2) to achieve an impact test; at the same time, through the rotation of the drum body (21) and the meshing transmission of the gear set, the driving rod drives two crank connecting rods and two impact hammers (16) to extend periodically along the two impact windows (5) respectively, thereby achieving two impact tests on the workpiece (2) to be tested; at the same time, the grinding ball (4) on the outer wall of the drum body (21) also rotates accordingly, thereby achieving a ball milling test, and simulating two wear mechanisms of impact and ball milling at the same time.

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