A wear-resistant testing device for metal materials

Abstract

The present invention provides a metal material wear-resistant test device, comprising: a chassis assembly, a lifting bracket and a test assembly; the chassis assembly comprises a chassis, and the chassis is connected to a control display; the lifting bracket comprises symmetrical electric push rods, the symmetrical electric push rods are respectively connected to the top plate of the chassis, the symmetrical electric push rods are respectively electrically connected to the control display, and the push rods of the symmetrical electric push rods are respectively connected to a horizontal plate, the horizontal plate is connected to a vertical plate, and the vertical plate is provided with a straight groove; the horizontal plate is provided with a first straight groove, and a first round rod is provided in the first straight groove. The present invention relates to the field of test technology, and in particular to a metal material wear-resistant test device. In view of the deficiencies of the prior art, the present invention develops a metal material wear-resistant test device, which can realize fusion tests on metal plates by unidirectional friction, bidirectional reciprocating friction and rotary extrusion friction, simulate metal surface scratches, and realize wear resistance performance detection.

Description

Technical Field

[0001] The invention relates to the field of test technology, in particular to a metal material wear resistance test device. Background Art

[0002] Metal materials refer to materials with properties such as luster, ductility, easy conductivity and heat transfer. They usually have good electrical and thermal conductivity, have unique color and luster on the surface, are easy to process and shape, and can form alloys with other metals or non-metals in the molten state to improve the properties of the metal.

[0003] Most metal materials will experience contact sliding during use, resulting in varying degrees of wear on the metal materials. Various wear of metal materials not only causes waste of materials, but also causes various unexpected accidents. Therefore, it is very important to test the wear resistance of metal materials.

[0004] Prior art, for example, invented a metal material testing device, authorization announcement number CN115993301B, which facilitates adjusting the force of the friction unit pressing the top of the detection metal. When rubbing the top of the detection metal, the detection metal can be rotated, and then the detection metal can be rubbed from different directions.

[0005] At present, there is still a lack of equipment that can conveniently realize the integration of unidirectional friction, bidirectional reciprocating friction and rotary extrusion friction on metal plates, simulate metal surface scratches, and realize wear resistance testing.

[0006] Therefore, in view of the above problems, a metal material wear resistance testing device is proposed to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention develops a metal material wear resistance testing device, which can realize fusion testing of unidirectional friction, bidirectional reciprocating friction and rotary extrusion friction on metal plates, simulate metal surface scratching, and realize wear resistance performance testing.

[0008] The technical solution to the technical problem solved by the present invention is as follows: the present invention provides a wear-resistant test device for metal materials, comprising: a chassis component, a lifting bracket and a test component; the chassis component comprises a chassis, and the chassis is connected to a control display; the lifting bracket comprises symmetrical electric push rods, the symmetrical electric push rods are respectively connected to the top plate of the chassis, the symmetrical electric push rods are respectively electrically connected to the control display, and the push rods of the symmetrical electric push rods are respectively connected to a horizontal plate, the horizontal plate is connected to a vertical plate, and the vertical plate is provided with a straight groove; the horizontal plate is provided with a first straight groove, a first round rod is provided in the first straight groove, the first round rod is connected to the horizontal plate, and the horizontal plate is provided with a second straight groove; the test component comprises a cross groove, the cross groove is connected to a first mounting rod, the first mounting rod is arranged in the first straight groove, the first round rod passes through the first mounting rod, and the first mounting rod is connected to a reciprocating friction plate; a cross block is provided in the cross groove, the cross block is connected to a guide cross bar, the guide cross bar is connected to a second mounting rod, the second mounting rod is arranged in the second straight groove, and the second mounting rod is connected to a one-way friction plate. By setting a straight groove, the one-way friction plate can be intermittently in contact with and away from the metal plate, thereby realizing a one-way friction test on the metal plate. By setting a reciprocating friction plate, a reciprocating friction test on the metal plate can be realized, thereby more intuitively comparing the test results of the two frictions.

[0009] As an optimization, it also includes a power assembly, the power assembly includes a motor, the horizontal plate is connected to the motor through a motor bracket, the motor is electrically connected to the control display, the output shaft of the motor is connected to the driving gear, the vertical plate bearing is connected to the central axis of the driven gear, the driven gear meshes with the driving gear, the central axis of the driven gear is connected to the first slide rod, the first slide rod is embedded with a slider, the slider bearing is connected to a power round rod, the power round rod is set in the straight groove, and the power round rod is connected to the cross block. By using the motor to drive, using gear meshing, and setting the power round rod in the straight groove, the one-way friction plate and the reciprocating friction plate can be driven to move.

[0010] As an optimization, an auxiliary test assembly is also included, the auxiliary test assembly includes a vertical groove, the guide cross bar is arranged in the vertical groove, the vertical groove is connected to the slide, the cross plate is provided with a third straight groove, the third straight groove is provided with a second round bar, the second round bar is connected to the cross plate, the slide is arranged in the third straight groove, the second round bar passes through the slide, the cross plate is connected to the first rack, the slide bearing is connected to the first gear, the first gear meshes with the first rack, the central axis of the second gear is connected to the second slide rod, the bearing of the second slide rod is connected to the central axis of the third gear, the third gear meshes with the second gear, the eccentric part of the first gear is connected to the vertical round bar, and the vertical round bar is arranged in the groove of the second slide rod. By adopting the gear rack meshing, the vertical round bar is arranged in the groove of the second slide rod, and when the test is realized, the vertical round bar drives the second slide rod to swing.

[0011] As an optimization, a scraping assembly is also included, the scraping assembly includes a screw, the central axis of the third gear is connected to the screw, the screw bearing is connected to the slide, the screw thread is connected to the lifting block, the slide is connected to a symmetrical U-seat, the symmetrical U-seats are respectively rotatably connected to the scraping rods, and the lifting blocks are respectively connected to the corresponding scraping rods through two spring connecting rods. By using a screw bearing to connect the slide, the second slide rod drives the second gear to swing, and then drives the third gear to rotate back and forth, so that the screw rotates back and forth, and drives the scraping rod to reciprocate and contact the metal plate, so as to realize the scraping test.

[0012] As an optimization, it also includes a rubbing assembly, which includes a large shaft, which is connected to the central shaft of the third gear, which passes through the second slide rod, the slide plate is provided with an arc groove, the large shaft is provided in the arc groove, the large shaft is connected to the rubbing plate, the cross plate is connected to the second rack, the slide plate bearing is connected to the central shaft of the second gear, the central shaft bearing of the second gear is connected to the second slide rod, and the second gear meshes with the second rack. By adopting the second gear bearing to connect the slide plate, the second slide rod drives the third gear to swing, and the rubbing plate maintains linear motion while swinging and rotating to rub against the metal plate, which facilitates the scraping test.

[0013] As an optimization, the second slide groove rod is connected to the symmetrical guide vertical rods, the symmetrical guide vertical rods pass through the cross rods respectively, the second slide groove rod is connected to the symmetrical upper springs, the symmetrical upper springs are respectively ringed around the corresponding guide vertical rods, the symmetrical upper springs are respectively connected to the cross rods, the cross rods are connected to the wedge plate, the vertical round rods contact the inclined surface of the wedge plate, the upper ends of the vertical round rods are spherical and contact the inclined surface of the wedge plate, the cross rod bearings are connected to the telescopic square shaft, the telescopic square shaft passes through the large shaft and the upper part of the rotary rubbing plate, and the telescopic square shaft is connected to the small rotary rubbing circular plate. The telescopic square shaft comprises an upper shaft, a lower spring and a lower shaft connected in sequence from top to bottom, the upper shaft bearing is connected to the cross bar, the lower shaft is connected to the small rotary rubbing plate, the large shaft is provided with a rectangular hole, the rectangular hole extends to the upper part of the rotary rubbing plate, the lower part of the rotary rubbing plate is provided with a circular groove, the rectangular hole is connected to the circular groove, the upper shaft, the lower spring and the lower shaft are arranged in the rectangular hole, and the small rotary rubbing plate is arranged in the circular groove. By adopting the telescopic square shaft to connect the small rotary rubbing plate and adopting the vertical round rod to contact the inclined surface of the wedge plate, the contact pressure between the small rotary rubbing plate and the metal plate changes, so as to facilitate the scraping test.

[0014] The effects provided in the summary of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects:

[0015] 1. This device sets the power round rod in the straight groove to achieve intermittent contact and distance between the one-way friction plate and the metal plate, thus realizing the one-way friction test on the metal plate. By setting the reciprocating friction plate, the reciprocating friction test on the metal plate can be realized, and the test results of the two frictions can be compared more intuitively. The small rotating circular plate is connected by a telescopic square shaft, and the vertical round rod is used to contact the inclined surface of the wedge plate, so that the contact pressure between the small rotating circular plate and the metal plate changes, which is convenient for the scraping test. The fusion test of one-way friction, two-way reciprocating friction and rotary extrusion friction can be realized.

[0016] 2. This device adopts a scraping rod that can swing back and forth and a retaining spring. When the screw rotates, the scraping rod swings and contacts the metal plate. The contact pressure between the two changes continuously. The scraping rod moves a certain distance along the metal plate to simulate the scraping of foreign matter on the surface of the metal plate, thereby realizing the wear resistance performance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0019] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0020] Figure 3 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 .

[0021] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 .

[0022] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 .

[0023] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 4 .

[0024] Figure 7 It is a partially cutaway three-dimensional structural schematic diagram of the present invention.

[0025] Figure 8 It is a partially cutaway three-dimensional structural schematic diagram of the rotary wiping assembly of the present invention.

[0026] Fig. 9 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 5 .

[0027] Fig.10 It is a schematic diagram of a partially cutaway three-dimensional structure of the scraping assembly of the present invention.

[0028] In the figure:

[0029] 1. Chassis assembly, 11. Chassis, 12. Control display, 13. Emergency stop switch;

[0030] 2. lifting bracket, 21. vertical plate, 22. straight groove, 23. horizontal plate, 24. electric push rod, 25. first straight groove, 26. first round rod, 27. third straight groove, 28. second straight groove, 29. second round rod;

[0031] 3. test assembly, 31. cross slot, 32. cross block, 33. guide cross bar, 34. second mounting rod, 35. one-way friction plate, 36. reciprocating friction plate, 37. first mounting rod;

[0032] 4. power assembly, 41. motor, 42. driving gear, 43. driven gear, 44. first slide rod, 45. power round rod, 46. slider;

[0033] 5. Auxiliary test assembly, 51. first rack, 52. vertical groove, 53. slide plate, 54. vertical round rod, 55. second slide groove rod, 56. first gear, 57. third gear, 58. second gear, 59. second rack, 510. arc groove;

[0034] 6. Rotary wiping assembly, 61. Vertical guide rod, 62. Upper spring, 63. Crossbar, 64. Wedge plate, 65. Upper shaft, 66. Lower spring, 67. Large shaft, 68. Lower shaft, 69. Rotary wiping plate, 610. Rotary wiping small circular plate, 611. Rectangular hole, 612. Circular groove;

[0035] 7. Scraping assembly, 71. Screw rod, 72. Lifting block, 73. Scraping rod, 74. U seat, 75. Spring rod, 76. Retaining spring, 77. Spring cylinder. DETAILED DESCRIPTION

[0036] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the present invention. The orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 10As shown, embodiment 1: a metal material wear test device, comprising: a chassis component 1, a lifting bracket 2 and a test component 3; the chassis component 1 includes a chassis 11, and the chassis 11 is connected to a control display 12; the lifting bracket 2 includes symmetrical electric push rods 24, the symmetrical electric push rods 24 are respectively connected to the top plate of the chassis 11, the symmetrical electric push rods 24 are respectively electrically connected to the control display 12, and the push rods of the symmetrical electric push rods 24 are respectively connected to a horizontal plate 23, the horizontal plate 23 is connected to a vertical plate 21, and the vertical plate 21 is provided with a straight groove 22; the horizontal plate 23 is provided with a first straight groove 25, and the first straight groove 25 is provided with a first A round bar 26, the first round bar 26 is connected to the cross plate 23, the cross plate 23 is provided with a second straight groove 28; the test assembly 3 includes a cross groove 31, the cross groove 31 is connected to a first mounting rod 37, the first mounting rod 37 is arranged in the first straight groove 25, the first round bar 26 passes through the first mounting rod 37, the first mounting rod 37 is connected to the reciprocating friction plate 36; a cross block 32 is arranged in the cross groove 31, the cross block 32 is connected to a guide cross bar 33, the guide cross bar 33 is connected to a second mounting rod 34, the second mounting rod 34 is arranged in the second straight groove 28, and the second mounting rod 34 is connected to a one-way friction plate 35. By setting the straight groove 22, the one-way friction plate 35 can be intermittently contacted and away from the metal plate, so as to realize the one-way friction test of the metal plate, and by setting the reciprocating friction plate 36, the reciprocating friction test of the metal plate can be realized, so as to more intuitively compare the test results of the two frictions.

[0038] It also includes a power assembly 4, which includes a motor 41. The horizontal plate 23 is connected to the motor 41 through a motor bracket. The motor 41 is electrically connected to the control display 12. The output shaft of the motor 41 is connected to the driving gear 42. The vertical plate 21 is connected to the central axis of the driven gear 43 by a bearing. The driven gear 43 meshes with the driving gear 42. The central axis of the driven gear 43 is connected to the first slide rod 44. The first slide rod 44 is embedded with a slider 46. The slider 46 is connected to a power round rod 45 by a bearing. The power round rod 45 is set in the straight groove 22 and connected to the cross block 32. The power round rod 45 is set in the straight groove 22 by the motor 41, and the gear meshing is adopted to realize the movement of the one-way friction plate 35 and the reciprocating friction plate 36.

[0039] The chassis 11 is connected to an emergency stop switch 13, and the emergency stop switch 13 is electrically connected to the control display 12. By adopting the emergency stop switch 13, it is convenient to shut down the device when an emergency occurs.

[0040] The workflow of this embodiment is:

[0041] The metal plate is fixed in the chassis 11, and the electric push rod 24 is controlled to extend through the control display 12, so that the one-way friction plate 35 and the reciprocating friction plate 36 contact the metal plate respectively.

[0042] The control motor 41 rotates, the motor 41 drives the driving gear 42 to rotate, the driving gear 42 drives the driven gear 43 to rotate, the driven gear 43 drives the first slide rod 44 to rotate, the first slide rod 44 drives the slider 46 to swing, the slider 46 drives the power round rod 45 to move along the straight groove 22, the power round rod 45 drives the slider 46 to move along the first slide rod 44, the power round rod 45 drives the cross block 32 to move, the cross block 32 drives the cross slot 31 to reciprocate, the cross slot 31 drives the first mounting rod 37 in the first straight groove The groove 25 moves along the first round rod 26, and the first mounting rod 37 drives the reciprocating friction plate 36 to reciprocate along the surface of the metal plate. When the power round rod 45 moves along the lower straight groove of the straight groove 22, the one-way friction plate 35 contacts the metal plate and moves along its surface to achieve one-way friction. When the power round rod 45 moves along the semicircular grooves on both sides of the straight groove 22, it drives the cross block 32 to move along the cross groove 31. The cross block 32 drives the guide cross bar 33, the second mounting rod 34 and the one-way friction plate 35 away from the surface of the metal plate to achieve one-way friction.

[0043] It also includes an auxiliary test component 5, which includes a vertical groove 52, the guide cross bar 33 is arranged in the vertical groove 52, the vertical groove 52 is connected to the slide plate 53, the cross plate 23 is provided with a third straight groove 27, the third straight groove 27 is provided with a second round rod 29, the second round rod 29 is connected to the cross plate 23, the slide plate 53 is arranged in the third straight groove 27, the second round rod 29 passes through the slide plate 53, the cross plate 23 is connected to the first rack 51, the slide plate 53 bearing is connected to the first gear 56, the first gear 56 meshes with the first rack 51, the central axis of the second gear 58 is connected to the second slide rod 55, the bearing of the second slide rod 55 is connected to the central axis of the third gear 57, the third gear 57 meshes with the second gear 58, the eccentric part of the first gear 56 is connected to the vertical round rod 54, and the vertical round rod 54 is arranged in the groove of the second slide rod 55. The vertical round rod 54 is arranged in the groove of the second slide slot rod 55 by adopting the meshing of gear racks. When the test is carried out, the vertical round rod 54 drives the second slide slot rod 55 to swing.

[0044] Embodiment 2: This embodiment is further elaborated on the basis of embodiment 1, and further includes a rubbing assembly 6, wherein the rubbing assembly 6 includes a large shaft 67, the large shaft 67 is connected to the central axis of the third gear 57, the large shaft 67 passes through the second slide rod 55, the slide plate 53 is provided with an arc groove 510, the large shaft 67 is arranged in the arc groove 510, the large shaft 67 is connected to the rubbing plate 69, the transverse plate 23 is connected to the second rack 59, the slide plate 53 is connected to the central axis of the second gear 58 by a bearing, the central axis of the second gear 58 is connected to the second slide rod 55 by a bearing, and the second gear 58 meshes with the second rack 59. By adopting the method of connecting the slide plate 53 with the second gear 58 by a bearing, the second slide rod 55 drives the third gear 57 to swing, and the rubbing plate 69 maintains linear motion while swinging and rotating to rub against the metal plate, so as to facilitate the scraping test.

[0045] The workflow of this embodiment is:

[0046] When the electric push rod 24 extends and the one-way friction plate 35 and the reciprocating friction plate 36 contact the metal plate, the rotary friction plate 69 contacts the metal plate.

[0047] When the guide cross bar 33 moves, it drives the vertical slot 52 to move, and the vertical slot 52 drives the slide plate 53 to move along the second round rod 29 in the third straight slot 27, so that the auxiliary test assembly 5 (except the first rack 51 and the second rack 59) and the rotary friction assembly 6 can move back and forth.

[0048] The first gear 56 meshes and rotates with the first rack 51, and the first gear 56 drives the vertical round rod 54 to swing in the groove of the second slide slot rod 55. The vertical round rod 54 drives the second slide slot rod 55, the third gear 57 and the rubbing assembly 6 to swing back and forth. The large shaft 67 moves along the arc groove 510. The second gear 58 meshes and rotates with the second rack 59, and the second gear 58 drives the third gear 57, the large shaft 67 and the rubbing plate 69 to rotate. The rubbing plate 69 swings back and forth and rotates the friction metal plate while moving back and forth.

[0049] Embodiment 3: This embodiment is further elaborated on the basis of embodiment 2, the second slide slot rod 55 is connected to the symmetrical guide vertical rod 61, the symmetrical guide vertical rod 61 passes through the cross rod 63 respectively, the second slide slot rod 55 is connected to the symmetrical upper spring 62, the symmetrical upper spring 62 is respectively ringed around the corresponding guide vertical rod 61, the symmetrical upper spring 62 is respectively connected to the cross rod 63, the cross rod 63 is connected to the wedge plate 64, the vertical round rod 54 contacts the inclined surface of the wedge plate 64, the upper end of the vertical round rod 54 is spherical and contacts the inclined surface of the wedge plate 64, the cross rod 63 is bearing-connected to the telescopic square shaft, the telescopic square shaft passes through the large shaft 67 and the upper part of the rotary rubbing plate 69, and the telescopic square shaft is connected to the rotary rubbing small circular plate 610. The telescopic square shaft comprises an upper shaft 65, a lower spring 66 and a lower shaft 68 connected in sequence from top to bottom, the upper shaft 65 is connected to the crossbar 63 by a bearing, the lower shaft 68 is connected to the small rubbing circular plate 610, the large shaft 67 is provided with a rectangular hole 611, the rectangular hole 611 extends to the upper part of the rubbing plate 69, the lower part of the rubbing plate 69 is provided with a circular groove 612, the rectangular hole 611 is connected to the circular groove 612, the upper shaft 65, the lower spring 66 and the lower shaft 68 are arranged in the rectangular hole 611, and the small rubbing circular plate 610 is arranged in the circular groove 612. By adopting the telescopic square shaft to connect the small rubbing circular plate 610 and adopting the vertical round rod 54 to contact the inclined surface of the wedge plate 64, the contact pressure between the small rubbing circular plate 610 and the metal plate changes, so as to facilitate the scraping test.

[0050] The workflow of this embodiment is:

[0051] When the electric push rod 24 extends and the one-way friction plate 35 and the reciprocating friction plate 36 contact the metal plate, the rotary rubbing plate 69 and the rotary rubbing small circular plate 610 contact the metal plate. When the vertical round rod 54 contacts the lowest point of the inclined surface of the wedge plate 64, the lower spring 66 is in a natural state.

[0052] When the large shaft 67 rotates, it drives the upper shaft 65, the lower spring 66, the lower shaft 68 and the small rubbing circular plate 610 to rotate, and the vertical round rod 54 moves along the inclined surface of the wedge plate 64. Under the action of the upper spring 62, the wedge plate 64 is driven to reciprocate. The wedge plate 64 drives the cross bar 63 to reciprocate along the guide vertical rod 61. The cross bar 63 drives the upper shaft 65 to reciprocate along the rectangular hole 611. The upper shaft 65 and the lower shaft 68 reciprocate to squeeze the lower spring 66, thereby realizing the pressure change between the small rubbing circular plate 610 and the metal plate.

[0053] Embodiment 4: This embodiment is further elaborated on the basis of embodiment 1, and further includes a scraping assembly 7, wherein the scraping assembly 7 includes a screw 71, the central axis of the third gear 57 is connected to the screw 71, the screw 71 is connected to the slide plate 53 by a bearing, the screw 71 is threadedly connected to the lifting block 72, the slide plate 53 is connected to a symmetrical U-seat 74, the symmetrical U-seats 74 are respectively connected to the scraping rods 73 by rotation, and the lifting blocks 72 are respectively connected to the corresponding scraping rods 73 by two spring connecting rods. By adopting the screw 71 bearing to connect the slide plate 53, the second slide rod 55 drives the second gear 58 to swing, and then drives the third gear 57 to rotate back and forth, so as to realize the reciprocating rotation of the screw 71, and drive the scraping rod 73 to reciprocately contact the metal plate, thereby realizing the scraping test.

[0054] The spring connecting rod includes a spring barrel 77, the lifting block 72 is rotatably connected to the symmetrical spring barrel 77, the symmetrical scraping rods 73 are rotatably connected to spring rods 75, two spring rods 75 are respectively arranged in the corresponding spring barrels 77, and the symmetrical spring barrels 77 are respectively provided with retaining springs 76, one end of the symmetrical retaining springs 76 is respectively connected to the corresponding spring rods 75, and the other end of the symmetrical retaining springs 76 is respectively connected to the corresponding spring barrels 77. By adopting the retaining springs 76, the pressure of the scraping rod 73 is constantly changed when it contacts the metal plate, so as to facilitate the scraping test.

[0055] The workflow of this embodiment is:

[0056] When the electric push rod 24 extends and the one-way friction plate 35 and the reciprocating friction plate 36 contact the metal plate, the scraping rod 73 contacts the metal plate, and the holding spring 76 is compressed.

[0057] When the guide cross bar 33 moves, it drives the vertical slot 52 to move, and the vertical slot 52 drives the slide plate 53 to move along the second round rod 29 in the third straight slot 27, so as to realize the reciprocating movement of the auxiliary test assembly 5 (except the first rack 51) and the scraping assembly 7.

[0058] The first gear 56 meshes with the first rack 51 and rotates, the first gear 56 drives the vertical round rod 54 to swing in the groove of the second slide slot rod 55, the vertical round rod 54 drives the second slide slot rod 55 and the second gear 58 to swing back and forth, the second gear 58 drives the third gear 57 and the screw rod 71 to rotate back and forth, the screw 71 drives the lifting block 72 to move back and forth, the lifting block 72 drives the spring tube 77, the retaining spring 76 and the spring rod 75 to swing, the spring rod 75 drives the scraping rod 73 to swing, so as to realize the recovery of the retaining spring 76 and the scraping rod 73 away from the metal plate, the squeezing of the retaining spring 76 and the contact of the scraping rod 73 to the metal plate, so as to realize the simulated scraping.

[0059] The device realizes the intermittent contact and separation of the one-way friction plate 35 from the metal plate by setting the power round rod 45 in the straight groove 22, and realizes the one-way friction test on the metal plate. By setting the reciprocating friction plate 36, the reciprocating friction test on the metal plate is realized, and the test results of the two frictions are more intuitively compared. The small rotating circular plate 610 is connected by a telescopic square shaft, and the vertical round rod 54 is used to contact the inclined surface of the wedge plate 64, so that the contact pressure between the small rotating circular plate 610 and the metal plate changes, which is convenient for the scraping test. The one-way friction, two-way reciprocating friction and rotating extrusion friction are realized for fusion testing.

[0060] The device adopts a scraping rod 73 that can swing back and forth and a retaining spring 76, so that when the screw 71 rotates, the scraping rod 73 swings and contacts the metal plate, and the contact pressure between the two changes continuously. The scraping rod 73 moves a certain distance along the metal plate, simulating the scraping of foreign matter on the surface of the metal plate, thereby realizing the wear resistance performance detection.

[0061] Although the above describes the specific implementation mode of the invention in conjunction with the drawings, it is not intended to limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A metal material wear resistance testing device, characterized in that: include: A chassis assembly (1), a lifting bracket (2) and a test assembly (3); The chassis assembly (1) comprises a chassis (11), wherein the chassis (11) is connected to a control display (12); The lifting bracket (2) comprises symmetrical electric push rods (24), the symmetrical electric push rods (24) are respectively connected to the top plate of the chassis (11), the symmetrical electric push rods (24) are respectively electrically connected to the control display (12), the push rods of the symmetrical electric push rods (24) are respectively connected to the horizontal plate (23), the horizontal plate (23) is connected to the vertical plate (21), and the vertical plate (21) is provided with a straight groove (22); The transverse plate (23) is provided with a first straight groove (25), a first round rod (26) is provided in the first straight groove (25), the first round rod (26) is connected to the transverse plate (23), and the transverse plate (23) is provided with a second straight groove (28); The test assembly (3) comprises a cross groove (31), the cross groove (31) is connected to a first mounting rod (37), the first mounting rod (37) is arranged in the first straight groove (25), the first round rod (26) passes through the first mounting rod (37), and the first mounting rod (37) is connected to a reciprocating friction plate (36); A cross block (32) is arranged in the cross groove (31), the cross block (32) is connected to a guide cross bar (33), the guide cross bar (33) is connected to a second mounting rod (34), the second mounting rod (34) is arranged in the second straight groove (28), and the second mounting rod (34) is connected to a one-way friction plate (35); The invention also comprises a power assembly (4), wherein the power assembly (4) comprises a motor (41), the horizontal plate (23) is connected to the motor (41) via a motor bracket, the motor (41) is electrically connected to the control display (12), the output shaft of the motor (41) is connected to the driving gear (42), the vertical plate (21) is connected to the central axis of the driven gear (43) by a bearing, the driven gear (43) is meshed with the driving gear (42), the central axis of the driven gear (43) is connected to a first slide slot rod (44), a slider (46) is nested in the first slide slot rod (44), the slider (46) is connected to a power round rod (45) by a bearing, the power round rod (45) is arranged in the straight slot (22), and the power round rod (45) is connected to the cross block (32).

2. A metal material wear resistance testing device according to claim 1, characterized in that: The auxiliary test assembly (5) further comprises a vertical groove (52), wherein the guide cross bar (33) is arranged in the vertical groove (52), the vertical groove (52) is connected to the slide plate (53), the cross plate (23) is provided with a third straight groove (27), a second round rod (29) is arranged in the third straight groove (27), the second round rod (29) is connected to the cross plate (23), the slide plate (53) is arranged in the third straight groove (27), the second round rod (29) passes through the slide plate (53), and the cross plate (23) is connected to the first rack (51), the bearing of the slide plate (53) is connected to the first gear (56), the first gear (56) meshes with the first rack (51), the central axis of the second gear (58) is connected to the second slide slot rod (55), the bearing of the second slide slot rod (55) is connected to the central axis of the third gear (57), the third gear (57) meshes with the second gear (58), the eccentric part of the first gear (56) is connected to the vertical round rod (54), and the vertical round rod (54) is set in the groove of the second slide slot rod (55).

3. A metal material wear resistance testing device according to claim 2, characterized in that: The scraping assembly (7) further comprises a scraping assembly (7), wherein the scraping assembly (7) comprises a screw rod (71), the central axis of the third gear (57) is connected to the screw rod (71), the screw rod (71) is connected to the slide plate (53) through a bearing, the screw rod (71) is threadedly connected to a lifting block (72), the slide plate (53) is connected to a symmetrical U-seat (74), the symmetrical U-seats (74) are respectively rotatably connected to scraping rods (73), and the lifting blocks (72) are respectively connected to corresponding scraping rods (73) through two spring connecting rods.

4. A metal material wear resistance testing device according to claim 2, characterized in that: The invention also comprises a rotary rubbing assembly (6), wherein the rotary rubbing assembly (6) comprises a large shaft (67), wherein the large shaft (67) is connected to the central shaft of the third gear (57), wherein the large shaft (67) passes through the second slide slot rod (55), wherein the slide plate (53) is provided with an arc slot (510), wherein the large shaft (67) is arranged in the arc slot (510), wherein the large shaft (67) is connected to the rotary rubbing plate (69), wherein the cross plate (23) is connected to the second rack (59), wherein the slide plate (53) is bearing-connected to the central shaft of the second gear (58), wherein the central shaft of the second gear (58) is bearing-connected to the second slide slot rod (55), and wherein the second gear (58) meshes with the second rack (59).

5. A metal material wear resistance testing device according to claim 4, characterized in that: The second slide groove rod (55) is connected to symmetrical guide vertical rods (61), the symmetrical guide vertical rods (61) respectively pass through cross rods (63), the cross rods (63) are connected to wedge plates (64), the vertical round rods (54) contact the inclined surface of the wedge plates (64), the cross rods (63) are bearing-connected to a telescopic square shaft, the telescopic square shaft passes through the large shaft (67) and the upper part of the rotary rubbing plate (69), and the telescopic square shaft is connected to a small rotary rubbing circular plate (610).

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