A roll hardness testing device

Abstract

This application relates to a roll hardness testing device, belonging to the technical field of hardness testing devices. It includes a worktable and a support frame slidably connected to the worktable along its height direction. Each support frame corresponds to a roll end, and rotating rollers rotatably connected to the worktable are located on both sides of the line connecting the support frames. A loading rack is located on one side of the worktable along its height direction. A movable plate is inserted into and slidably connected to the loading rack. A flipping plate is located on the side of the movable plate away from the support frame. The roll is placed on the upper side of the movable plate and the flipping plate. A fixing member is provided between the flipping plate and the movable plate. The loading rack is equipped with a driving assembly that drives the movable plate to move and drives the flipping plate to flip the roll between the rotating rollers. This application has the effect of reducing adverse effects on work efficiency.

Description

Technical Field

[0001] This application relates to the technical field of hardness testing devices, and in particular to a roll hardness testing device. Background Technology

[0002] Hardness testing of rolls is an important part of roll performance testing. When testing the hardness of rolls, a Leeb hardness tester is commonly used. The probe should be perpendicular to the side of the roll being tested, and the tilt angle should not exceed 10°.

[0003] Chinese Patent Publication No. CN217931224U discloses a device for detecting the hardness of rolls, including a base, a linear motion mechanism, and a hardness detection device. Two sets of rotating rollers are fixedly connected to the base, and a power motor is fixedly connected to the base. The power motor is poweredly connected to one of the sets of rotating rollers. A frame is fixedly connected to the base, and a linear motion mechanism is set on the top frame of the frame. A sliding table is slidably connected to the bottom of the motion table of the linear motion mechanism, and a hardness detection probe is fixedly connected to the bottom of the sliding table. An electric telescopic cylinder is fixedly connected to the bottom of the motion table, and the piston end of the electric telescopic cylinder is fixedly connected to the sliding table. A hardness detection instrument body is fitted and installed on the frame, and the hardness detection instrument body and the hardness detection probe are connected via a data cable. It has the characteristics of high detection accuracy.

[0004] When using the roll hardness testing device in related technologies to test the hardness of rolls, it is necessary to move the roll and align it with the support frame on the base to place the roll on the base. This can easily cause the roll to be difficult to place on the support frame quickly, affecting work efficiency. Summary of the Invention

[0005] In order to reduce the adverse impact on work efficiency, this application provides a roll hardness detection device.

[0006] The roll hardness testing device provided in this application adopts the following technical solution:

[0007] A roll hardness testing device includes a worktable and a support frame slidably connected to the worktable along its height direction. The support frame corresponds one-to-one with the end of the roll, and rotating rollers rotatably connected to the worktable are provided on both sides of the line connecting the support frames. A loading rack is provided on one side of the worktable along its height direction. A movable plate is inserted into and slidably connected to the loading rack. A flipping plate is provided on the side of the movable plate away from the support frame. The roll is placed on the upper side of the movable plate and the flipping plate. A fixing member is provided between the flipping plate and the movable plate. A driving assembly is provided on the loading rack to drive the movable plate to move and drive the flipping plate to flip the roll between the rotating rollers.

[0008] By adopting the above technical solution, the roll is placed on the upper side of the moving plate and the flipping plate. At this time, the moving plate and the flipping plate are fixed by the fixing parts. The moving plate is driven by the drive assembly to move along the height direction of the loading rack until it moves to the upper side of the loading rack. At this time, the fixing of the moving plate and the flipping plate is released. Then, the drive assembly drives the flipping plate to rotate towards the worktable, thereby driving the roll to roll onto one of the rotating rollers. At this time, the rotating roller rotates and drives the roll to roll between the two rotating rollers, driving the support frame to move upward and support the roll. This facilitates the quick placement of the roll on the support frame and reduces the adverse impact on work efficiency.

[0009] Optionally, the side of the flip plate closest to the moving plate is inserted into the moving plate, and the upper side of the moving plate is flush with the upper side of the flip plate. The fixing member includes fixing rods symmetrically arranged on both sides of the flip plate closest to the moving plate. The fixing rods have a circular cross-section. The ends of the fixing rods that are far apart from each other are fixedly connected to a driving rod with a square cross-section that penetrates the moving plate. The driving rods are slidably connected to the moving plate. When the flip plate is fixed to the moving plate, the fixing rods are inserted into the flip plate, the ends of the driving rods that are far apart from each other are flush with the side wall of the moving plate, and the ends of the driving rods that are close to the fixing rods are inserted into the flip plate. The upper side of the feeding rack is provided with an unlocking member that drives the driving rods to disengage from the flip plate.

[0010] By adopting the above technical solution, when the moving plate and the flipping plate are fixed, the ends of the drive rods that are close to each other are inserted into the flipping plate. At this time, the cross-sectional shape of the drive rods restricts the rotation of the flipping plate. When the fixing is released, the unlocking component drives the drive rods to move away from each other until the drive rods disengage from the flipping rods and the ends of the drive rods that are far apart from each other are inserted into the loading rack. At this time, the moving plate is fixed to the loading rack, and the drive assembly continues to drive the flipping plate to move. At this time, the flipping plate rotates along the fixed rod towards the worktable, which facilitates the drive rollers to roll between the rotating rollers and reduces the adverse effects on work efficiency.

[0011] Optionally, the drive assembly includes a drive plate located on the side of the flip plate away from the moving plate, the drive plate abutting against the lower side of the flip plate, one end of the drive plate being inserted into and threadedly connected to a first lead screw rotatably connected to the loading rack, and the other end being inserted into and slidably connected to a guide rod fixedly connected to the loading rack.

[0012] By adopting the above technical solution, the first lead screw is rotated and the drive plate is driven to push the flip plate and move the moving plate upward. At this time, the guide rod guides the drive plate, reducing the possibility of the drive plate deviating. When the moving plate moves to the upper side of the loading rack and is released from the fixation with the flip plate, the drive plate continues to be driven to move upward, thereby pushing the flip plate to rotate along the fixed rod, which facilitates the drive roller to roll between the rotating rollers and reduces the adverse effects on work efficiency.

[0013] Optionally, the unlocking component includes a hinged rod corresponding to each of the drive rods and hinged to the side of the drive rods near the worktable. The ends of the hinged rods away from the drive rods are inclined towards each other and hinged with a moving block. The moving block moves in the direction of approaching or away from the drive rod. A first spring is provided between the moving block and the moving plate. A first hydraulic cylinder is provided inside the upper side of the loading rack facing the moving plate. When the moving plate moves to be level with the upper side of the loading rack, the first hydraulic cylinder is inserted into the moving plate and located directly above the moving block. An unlocking block is provided on the telescopic rod of the first hydraulic cylinder. The side of the unlocking block near the moving block is set as an inclined surface that is inclined towards the side of the drive rod and away from the moving block.

[0014] By adopting the above technical solution, when the moving plate moves to the loading rack, the first hydraulic cylinder is inserted into the moving plate. At this time, the telescopic rod of the first hydraulic cylinder extends, and the unlocking block moves towards the driving rod by pressing the moving block with the inclined plane. Thus, the driving rod is driven to move away from each other through the hinge rod until the end is inserted into the loading rack. At this time, the first spring is stretched, and the tilting plate rotates to be level with the moving plate. The telescopic rod of the first hydraulic cylinder retracts and drives the unlocking block to disengage from the moving block. At this time, the first spring restores its deformation and drives the end of the driving rod that is close to each other to insert into the tilting plate, thereby fixing the tilting plate, which is convenient for receiving the rolls again and improving the roll transportation efficiency.

[0015] Optionally, the worktable is provided with a buffer plate located between the rotating rollers and arranged along the length of the worktable. The upper side of the buffer plate is configured as an arc shape that is concave downward along its own width direction. A second spring is provided between the buffer plate and the worktable, and a damping column is provided on the lower side of the buffer plate facing the worktable and fixedly connected to the worktable. When the second spring is at its original length, the height of the upper side of the buffer plate is higher than the height of the upper side of the rotating roller.

[0016] By adopting the above technical solution, when the roll rolls roll between the rotating rolls, they first come into contact with the buffer plate and drive the buffer plate to move towards the worktable. At this time, the damping column and the second spring are compressed, thereby buffering the roll rolls and reducing the impact of the roll rolls on the roll rolls. When the roll rolls are located between the rotating rolls and come into contact with the rotating rolls, the upper height of the buffer plate is lower than the upper height of the rotating rolls, which makes it easier for the rotating rolls to drive the roll rolls to rotate and improves work efficiency.

[0017] Optionally, one of the rotating rollers is provided with a drive motor at its end, and a connecting assembly is provided between the drive motor and the corresponding rotating roller to connect the two. A mounting frame is provided on the worktable, and a probe facing the roller is provided on the upper side of the mounting frame. A moving assembly is provided on the mounting frame to drive the probe to move along the length direction of the roller.

[0018] By adopting the above technical solution, when the roll rolls between the rotating rolls, the connecting component does not connect the drive motor and the corresponding rotating roll. The drive motor drives the corresponding rotating roll to rotate through the connecting component, thereby driving the roll to rotate. Another rotating roll supports the roll and rotates with it. At this time, the moving component drives the sensor to move along the length of the roll, which facilitates the detection of hardness at various points on the roll and improves work efficiency.

[0019] Optionally, the connecting assembly includes a gear ring located at one end of the rotating roller near the drive motor, a first gear meshing on one side of the gear ring, the drive motor being mounted at the shaft of the first gear, and a control component connecting the gear ring and the rotating roller.

[0020] By adopting the above technical solution, when the rotating roller rotates under the gravity of the rolling mill, the control component is not connected to the toothed ring and the corresponding rotating roller. When the rolling mill is driven to rotate, the drive motor drives the toothed ring to rotate. At this time, the toothed ring drives the corresponding rotating roller to rotate towards the feeding rack through the control component and drives the rolling mill to rotate. This makes it easier for the probe to perform hardness detection on various parts of the outer side of the rolling mill and improves work efficiency.

[0021] Optionally, the control component includes a ratchet coaxial with the rotating roller and fixedly connected to the end of the rotating roller. The ratchet is inserted into the gear ring and coaxial with the gear ring. A pawl that engages with the ratchet is hinged to the inner sidewall of the gear ring.

[0022] By adopting the above technical solution, when the roll rolls onto the rotating roll and drives the rotating roll to rotate towards the support frame, the ratchet rotates relative to the toothed ring. When the drive motor drives the rotating roll to rotate, the toothed ring is fixed relative to the ratchet through the pawl, thereby driving the rotating roll to rotate through the ratchet. This facilitates the probe to perform hardness detection on various parts of the outer side of the roll, improving work efficiency.

[0023] Optionally, the moving component includes a second lead screw arranged along the length of the worktable and rotatably connected to the mounting bracket, a drive block threadedly connected to the second lead screw is provided on the upper side of the probe, and a second hydraulic cylinder is provided between the drive block and the probe.

[0024] By adopting the above technical solution, when the rotating roller drives the rolling mill to rotate, the second lead screw rotates and drives the drive block to move the second hydraulic cylinder and the probe along the length of the second lead screw. When the probe moves to the point to be tested, the second hydraulic cylinder drives the probe to move closer to or further away from the rolling mill, which facilitates the hardness test of the rolling mill and improves work efficiency.

[0025] Optionally, a belt is provided between the first gear and the second lead screw to connect the two.

[0026] By adopting the above technical solution, when the drive motor drives the first gear to rotate the gear ring and the rotating roller, the belt drives the second lead screw to rotate with the first gear, which facilitates driving the roller to rotate while driving the probe to move, thereby improving work efficiency.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] The roller is placed on the upper side of the moving plate and the flipping plate. The drive assembly drives the moving plate to move to the upper side of the loading rack. The moving plate and the flipping plate are released from their fixed positions. The drive assembly drives the flipping plate to rotate and drives the roller to roll onto one of the rotating rollers. At this time, the rotating roller rotates and drives the roller to roll between the two rotating rollers. The support frame is driven to move upward and support the roller, which makes it easy to quickly place the roller on the support frame.

[0029] When the ends of the drive rods that are close to each other are inserted into the flip plate, the cross-sectional shape of the drive rods restricts the rotation of the flip plate. When the fixation is released, the unlocking component drives the drive rods to move away from each other until the drive rods disengage from the flip rods and the ends of the drive rods that are far apart from each other are inserted into the loading rack. At this time, the moving plate is fixed to the loading rack, and the drive assembly continues to drive the flip plate to move. At this time, the flip plate rotates along the fixed rod towards the worktable, which facilitates the drive rollers to roll between the rotating rollers.

[0030] The roll first rolls into contact with the buffer plate and drives the buffer plate to move. At this time, the damping column and the second spring are compressed, thereby buffering the roll and reducing the impact of the rolls on each other. When the roll comes into contact with the two rotating rolls, the upper part of the buffer plate is lower than the upper part of the rotating rolls, which makes it easier for the rotating rolls to drive the roll to rotate. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the roll hardness detection device in the embodiments of this application.

[0032] Figure 2 This is a structural diagram illustrating the positional relationship between the loading rack and the workbench in an embodiment of this application.

[0033] Figure 3 This is a structural diagram illustrating the positional relationship between the flip plate and the drive plate in an embodiment of this application.

[0034] Figure 4 This is a structural diagram illustrating the positional relationship between the unlocking component and the fixing component in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Workbench; 11. Mounting bracket; 111. Probe; 112. Detector body; 12. Buffer plate; 121. Damping column; 122. Second spring; 2. Moving assembly; 21. Drive block; 22. Limit plate; 23. Limit block; 24. Second hydraulic cylinder; 25. Second lead screw; 26. Belt; 3. Support frame; 31. Support groove; 32. Rotating roller; 321. Drive motor; 33. Third hydraulic cylinder; 4. Loading rack; 41. Moving plate; 411. Fixing groove; 412. Mounting plate; 42. Mounting slot; 421. Plug-in slot; 422. Control slot; 5. Fixing component; 51. Fixing rod; 52. Drive rod; 6. Drive assembly; 61. Drive plate; 62. First lead screw; 63. Guide rod; 64. Control motor; 7. Unlocking component; 71. Control edge; 72. Hinge rod; 73. Moving block; 74. First spring; 75. First hydraulic cylinder; 76. Unlocking block; 8. Connecting assembly; 81. Gear ring; 82. First gear; 83. Control component; 831. Ratchet; 832. Pawl. Detailed Implementation

[0036] The present application will be further described in detail below with reference to the accompanying drawings.

[0037] This application discloses a roll hardness testing device. (Refer to...) Figure 1 and Figure 2 A roll hardness testing device includes a worktable 1 and a vertical mounting frame 11 fixedly connected to one end of the upper side of the worktable 1. The upper end of the mounting frame 11 is bent horizontally towards the other end of the worktable 1. A probe 111 is provided on the lower side of the bent end of the mounting frame 11, facing the worktable 1. The probe 111 is wirelessly connected to a testing instrument body 112 mounted on the side wall of the vertical end of the mounting frame 11. The probe 111 is slidably connected to the lower side of the mounting frame 11 along the length direction of the worktable 1, and a moving component 2 for driving the probe 111 to move is provided on the mounting frame 11.

[0038] Reference Figure 1 and Figure 2 The worktable 1 has vertical support frames 3 at both ends, each corresponding to one end of a roll. Each support frame 3 has an upward-opening support groove 31 at its upper end, adapted to the roll end. Two rotating rollers 32, arranged along the length of the worktable 1 and rotatably connected to it, are symmetrically arranged on both sides of the support frames 3. When the support frames 3 support the rolls, the roll ends are inserted into the corresponding support grooves 31, and the upper sides of the rotating rollers 32 are in contact with the roll sidewalls.

[0039] Reference Figure 2 and Figure 3A vertical feeding rack 4, with its upper end height level with the upper side of the rotating roller 32, is fixedly connected to one side of the worktable 1 along its length. A horizontal moving plate 41 is inserted into and slidably connected to the feeding rack 4. The side of the moving plate 41 away from the worktable 1 is located outside the feeding rack 4, and the other three vertical sidewalls of the moving plate 41 are in contact with the inner sidewall of the feeding rack 4. A horizontal flipping plate 42 is provided on the side of the moving plate 41 away from the worktable 1. A fixing groove 411 with an upward opening and a length shorter than the length of the moving plate 41 is opened on the upper side of the moving plate 41 near the flipping plate 42. The length of the flipping plate 42 on the side near the moving plate 41 is adapted to the length of the fixing groove 411, and the side of the flipping plate 42 near the fixing groove 411 is inserted into the fixing groove 411. The side of the flipping plate 42 inserted into the fixing groove 411 has a chamfer.

[0040] Reference Figure 2 and Figure 4 A fixing member 5 is provided between the moving plate 41 and the tilting plate 42 to connect the two. When the tilting plate 42 and the moving plate 41 are fixed, the upper side of the tilting plate 42 is flush with the upper side of the moving plate 41. The feeding rack 4 is provided with a driving assembly 6 to drive the moving plate 41 and the tilting plate 42 to move upward and drive the tilting plate 42 to tilt. A vertical third hydraulic cylinder 33 is fixedly connected to the lower end of the support frame 3. The end of the third hydraulic cylinder 33 away from the support frame 3 is fixedly connected to the worktable 1.

[0041] Reference Figure 1 and Figure 2 A buffer plate 12 is provided between the support frames 3, located between the rotating rollers 32 and along the length of the worktable 1. The upper side of the buffer plate 12 is an arc shape that gradually concaves downward from both sides to the middle. Vertical damping columns 121 are fixedly connected to the four corners of the lower side of the buffer plate 12, and the lower end of the damping column 121 is fixedly connected to the worktable 1. A vertical second spring 122 is fixedly connected to the lower side of the buffer plate 12, sleeved on the damping column 121 and corresponding to the damping column 121. The lower end of the second spring 122 is fixedly connected to the worktable 1.

[0042] The roll is placed on the upper side of the moving plate 41 and the tilting plate 42. At this time, the moving plate 41 and the tilting plate 42 are fixed. The moving plate 41 is driven to move along the height direction of the loading rack 4 by the driving assembly 6 until it moves to the upper side of the loading rack 4. The moving plate 41 and the tilting plate 42 are then released from their fixed position. The driving assembly 6 drives the tilting plate 42 to rotate towards the worktable 1, thereby driving the roll to roll onto the rotating roller 32 near the loading rack 4. At this time, the rotating roller 32 rotates and drives the roll to roll between the two rotating rollers 32. First, it contacts the buffer plate 12 and drives the buffer plate 12 to move downward. At this time, the damping column 121 and the second spring 122 are compressed and buffer the roll. The third hydraulic cylinder 33 drives the support frame 3 to move upward and support the roll. The upper side of the buffer plate 12 is lower than the upper side of the rotating roller 32, which facilitates the quick placement of the roll onto the support frame 3.

[0043] Reference Figure 3 and Figure 4 The fixing component 5 includes two fixing rods 51 located in the fixing grooves 411 and symmetrically arranged at both ends of the flip plate 42. The fixing rods 51 have a circular cross-section and face the flip plate 42. The flip plate 42 has insertion grooves 421 that correspond one-to-one with the fixing rods 51. The ends of the fixing rods 51 that are far apart from each other are fixedly connected to a driving rod 52 with a square cross-section and facing the flip plate 42. The ends of the driving rods 52 that are far apart from each other pass through the moving plate 41 and are slidably connected to the moving plate 41. The flip plate 42 has a control groove 422 that is adapted to the end of the driving rod 52 that is close to the fixing rod 51 and communicates with the corresponding insertion groove 421. When the moving plate 41 and the flip plate 42 are fixed, the fixing rods 51 are inserted into the corresponding insertion grooves 421, and the ends of the driving rods 52 that are close together are inserted into the corresponding control grooves 422. The ends of the driving rods 52 that are far apart from each other are flush with the side wall of the moving plate 41. The upper side of the loading rack 4 is provided with an unlocking component 7 that drives the driving rods 52 to disengage from the flip plate 42.

[0044] When the moving plate 41 and the flipping plate 42 are fixed, the ends of the drive rods 52 that are close to each other are inserted into the flipping plate 42. At this time, the cross-sectional shape of the drive rods 52 restricts the rotation of the flipping plate 42. When the fixing is released, the unlocking component 7 drives the drive rods 52 to move away from each other until the drive rods 52 are disengaged from the flipping rods and the ends of the drive rods 52 that are far from each other are inserted into the loading rack 4. At this time, the moving plate 41 is fixed to the loading rack 4, and the drive assembly 6 continues to drive the flipping plate 42 to move. At this time, the flipping plate 42 rotates along the fixed rod 51 towards the worktable 1, which facilitates the driving rollers to roll between the rotating rollers 32.

[0045] Reference Figure 3 and Figure 4 The unlocking component 7 includes a control edge 71 fixedly connected to the upper side of the loading rack 4 and near the worktable 1. A mounting groove 412, adapted to the control edge 71, is provided on the upper side of the moving plate 41 and near the worktable 1. When the moving plate 41 moves to a position where its upper side is level with the upper side of the loading rack 4, the control edge 71 is inserted into the mounting groove 412. Each drive rod 52 near the control edge 71 is hinged with a hinge rod 72. A cavity is provided in the moving plate 41, and the hinge rods 72 are all located within the cavity. The ends of the hinge rods 72 furthest from their corresponding drive rods 52 are inclined towards each other and hinged to the same moving block 73.

[0046] The movable block 73 is slidably connected to the movable plate 41 along the direction of approaching or moving away from the drive rod 52. A first spring 74 is fixedly connected to the side of the movable block 73 away from the drive rod 52, and the end of the first spring 74 away from the movable block 73 is fixedly connected to the inner wall of the movable plate 41. When the first spring 74 is at its original length, the ends of the drive rods 52 that are away from each other are flush with the side wall of the movable plate 41. A first hydraulic cylinder 75 is fixedly connected vertically to the lower side of the control rod 71 and is directly opposite the movable block 73. The extension rod of the first hydraulic cylinder 75 is downward and fixedly connected to an unlocking block 76. The lower side of the unlocking block 76 is set as an inclined surface that slopes upward towards the side of the drive rod 52.

[0047] When the upper side of the movable plate 41 is aligned with the upper side of the feeding rack 4, the telescopic rod of the first hydraulic cylinder 75 is inserted into the cavity, and the lower side of the unlocking block 76 is in contact with the movable block 73. The telescopic rod of the first hydraulic cylinder 75 is extended, at which time the unlocking block 76 presses the movable block 73 with its own inclined surface and moves towards the drive rod 52. The hinge rod 72 moves and rotates under the drive of the movable block 73, thereby driving the drive rod 52 to move away from each other until it is disengaged from the control slot 422, and the end of the drive rod 52 that is away from each other is inserted into the side wall of the feeding rack 4.

[0048] The movable plate 41 moves to the upper side of the feeding rack 4, the first hydraulic cylinder 75 is inserted into the movable plate 41, the telescopic rod of the first hydraulic cylinder 75 extends, the unlocking block 76 presses the movable block 73 in the direction close to the drive rod 52 through the inclined surface, and drives the drive rod 52 to move in a direction away from each other through the hinge rod 72 until the end is inserted into the feeding rack 4. At this time, the first spring 74 is stretched, the flip plate 42 rotates to be level with the movable plate 41, the telescopic rod of the first hydraulic cylinder 75 retracts, the first spring 74 restores its deformation and drives the end of the drive rod 52 that is close to each other to insert into the flip plate 42, and the flip plate 42 is fixed again.

[0049] Reference Figure 2 The drive assembly 6 includes a drive plate 61 that abuts against the side of the tilting plate 42 that is away from the moving plate 41. The length of the drive plate 61 is greater than the length of the tilting plate 42. One end of the drive plate 61 is inserted into and threadedly connected to a first lead screw 62 that is vertically and rotatably connected to the outer wall of the loading rack 4. The other end of the drive plate 61 is inserted into and slidably connected to a guide rod 63 that is vertically sheared and fixedly connected to the outer wall of the loading rack 4. A control motor 64 that is fixedly connected to the loading rack 4 is installed at the lower end of the first lead screw 62.

[0050] The control motor 64 causes the first lead screw 62 to drive the drive plate 61 to push the flip plate 42 and move the moving plate 41 upward. The guide rod 63 guides the drive plate 61. When the moving plate 41 moves to the upper side of the feeding rack 4 and is released from the fixation of the flip plate 42, the drive plate 61 continues to be driven to move upward, thereby pushing the flip plate 42 to rotate along the fixed rod 51, so as to facilitate the driving of the rollers to roll between the rotating rollers 32.

[0051] Reference Figure 1 and Figure 2 A drive motor 321 is fixedly connected to the worktable 1 at one end of the rotating roller 32 near the feeding rack 4. A connecting assembly 8 is provided between the drive motor 321 and the corresponding rotating roller 32. The connecting assembly 8 includes a gear ring 81 located at the end of the rotating roller 32 near the drive motor 321 and coaxial with the rotating roller 32. A first gear 82 meshes with one side of the gear ring 81. The output shaft of the drive motor 321 is fixedly connected to the axis of the first gear 82. A control element 83 is provided between the gear ring 81 and the corresponding rotating roller 32 to control the connection between the two.

[0052] The control component 83 includes a ratchet 831 fixedly connected to the end of the corresponding rotating roller 32. The ratchet 831 is inserted into the gear ring 81 and is coaxial with the gear ring 81. A pawl 832 that engages with the ratchet 831 is hinged to the inner wall of the gear ring 81. When the drive motor 321 drives the rotating roller 32 to rotate towards the feed rack 4, the pawl 832 engages with the ratchet 831, and the gear ring 81 is fixed relative to the ratchet 831.

[0053] When the roll rolls onto the rotating roll 32 and drives the rotating roll 32 to rotate toward the support frame 3, the ratchet 831 rotates relative to the gear ring 81. When the drive motor 321 drives the rotating roll 32 to rotate through the first gear 82 and the gear ring 81, the gear ring 81 is fixed relative to the ratchet 831 through the pawl 832, thereby driving the rotating roll 32 to rotate through the ratchet 831, which facilitates the probe 111 to perform hardness detection on various parts of the outer side of the roll.

[0054] Reference Figure 1 The moving component 2 includes a drive block 21 located above the probe 111. Vertical limiting plates 22, located on both sides of the probe 111, are fixedly connected to both ends of the lower side of the drive block 21. A limiting block 23 is fixedly connected to the upper side of the probe 111. The sides of the limiting plates 22 that are close to each other contact the sidewall of the limiting block 23, thereby limiting the limiting block 23 in the horizontal direction. A vertical second hydraulic cylinder 24 with a downward-pointing telescopic rod is fixedly connected to the middle of the lower side of the drive block 21. The telescopic rod of the second hydraulic cylinder 24 is fixedly connected to the limiting block 23. A second lead screw 25, arranged along the length of the worktable 1, is rotatably connected to the lower side of the bent end of the mounting bracket 11. The second lead screw 25 passes through the drive block 21 and is threadedly connected to the drive block 21. A belt 26 connecting the two is installed between the end of the second lead screw 25 and the first gear 82.

[0055] When the drive motor 321 drives the first gear 82 to rotate the gear ring 81 and the rotating roller 32, the belt 26 drives the second lead screw 25 to rotate with the first gear 82, thereby driving the drive block 21 to move the second hydraulic cylinder 24 and the probe 111 along the length of the second lead screw 25. This facilitates the rotation of the roller while simultaneously driving the probe 111 to move. When the probe 111 moves to the point to be tested, the second hydraulic cylinder 24 drives the probe 111 to move closer to or further away from the roller through the limit block 23, which facilitates the hardness testing of the roller.

[0056] The implementation principle of the roll hardness testing device in this application embodiment is as follows: the roll is placed on the upper side of the moving plate 41 and the flipping plate 42. The moving plate 41 drives the roll to move to the upper side of the feeding rack 4. The moving plate 41 and the flipping plate 42 are released from fixation. The flipping plate 42 is driven to rotate and drive the roll to roll onto the rotating roller 32 close to the feeding rack 4. The rotating roller 32 rotates and drives the roll to roll between the two rotating rollers 32. The buffer plate 12, the damping column 121 and the second spring 122 buffer the roll. The third hydraulic cylinder 33 drives the support frame 3 to move upward and support the roll, so that the roll can be quickly placed on the support frame 3.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A roll hardness testing device, characterized in that: The system includes a workbench (1) and a support frame (3) slidably connected to the workbench (1) along its height direction. Each support frame (3) corresponds to one end of a roll, and both sides of the line connecting the support frames (3) are provided with rotating rollers (32) rotatably connected to the workbench (1). A loading rack (4) is provided on one side of the workbench (1) along its height direction. A movable plate (41) is inserted into and slidably connected to the loading rack (4). A flip plate (42) is provided on the side of the movable plate (41) away from the support frame (3). The rolls are placed on the movable plate (41). On the upper side of the flipping plate (42), a fixing member (5) is provided between the flipping plate (42) and the moving plate (41). The loading rack (4) is provided with a driving assembly (6) that drives the moving plate (41) to move and drives the flipping plate (42) to flip the roll between the rotating rollers (32). The upper side of the moving plate (41) near the flipping plate (42) has a fixing groove (411) with an upward opening and a length less than the length of the moving plate (41). The length of the flipping plate (42) near the moving plate (41) is adapted to the length of the fixing groove (411). The flip plate (42) is inserted into the fixing groove (411) on the side closest to it. The side of the flip plate (42) inserted into the fixing groove (411) has a chamfer. When the flip plate (42) and the moving plate (41) are fixed, the upper side of the moving plate (41) is flush with the upper side of the flip plate (42). The fixing member (5) includes fixing rods (51) symmetrically arranged on both sides of the flip plate (42) close to the moving plate (41). The fixing rods (51) have a circular cross-section. The ends of the fixing rods (51) that are far apart from each other are fixedly connected to... A drive rod (52) with a square cross section and penetrating the moving plate (41) is provided. The drive rod (52) is slidably connected to the moving plate (41). When the flip plate (42) is fixed to the moving plate (41), the fixing rod (51) is inserted into the flip plate (42). The ends of the drive rods (52) that are far apart from each other are flush with the side wall of the moving plate (41), and the end of the drive rod (52) that is close to the fixing rod (51) is inserted into the flip plate (42). The upper side of the feeding rack (4) is provided with an unlocking part (7) that drives the drive rod (52) to disengage from the flip plate (42).The unlocking component (7) includes a hinge rod (72) corresponding to each of the drive rods (52) and hinged to the side of the drive rod (52) near the worktable (1). The ends of the hinge rods (72) away from the drive rods (52) are inclined towards each other and hinged with moving blocks (73). The moving blocks (73) move in the direction of approaching or moving away from the drive rods (52), and a first spring (74) is provided between the moving blocks (73) and the moving plate (41). The upper interior of the loading rack (4) A first hydraulic cylinder (75) is provided facing the movable plate (41). When the movable plate (41) moves to be level with the upper side of the loading rack (4), the first hydraulic cylinder (75) is inserted into the movable plate (41) and located directly above the movable block (73). An unlocking block (76) is provided on the telescopic rod of the first hydraulic cylinder (75). The side of the unlocking block (76) near the movable block (73) is set as an inclined surface that is inclined towards the side near the drive rod (52) and away from the movable block (73).

2. The roll hardness testing device according to claim 1, characterized in that: The drive assembly (6) includes a drive plate (61) located on the side of the flip plate (42) away from the moving plate (41). The drive plate (61) abuts against the lower side of the flip plate (42). One end of the drive plate (61) is inserted into and threadedly connected to a first lead screw (62) that is rotatably connected to the loading rack (4), and the other end is inserted into and slidably connected to a guide rod (63) that is fixedly connected to the loading rack (4).

3. The roll hardness testing device according to claim 2, characterized in that: The workbench (1) is provided with a buffer plate (12) located between the rotating rollers (32) and arranged along the length of the workbench (1). The upper side of the buffer plate (12) is set as an arc shape that is concave downward along its own width direction. A second spring (122) is provided between the buffer plate (12) and the workbench (1). The lower side of the buffer plate (12) is provided with a damping column (121) facing the workbench (1) and fixedly connected to the workbench (1). When the second spring (122) is at its original length, the height of the upper side of the buffer plate (12) is higher than the height of the upper side of the rotating rollers (32).

4. The roll hardness testing device according to claim 1, characterized in that: One of the rotating rollers (32) is provided with a drive motor (321) at its end. A connecting assembly (8) is provided between the drive motor (321) and the corresponding rotating roller (32). A mounting frame (11) is provided on the worktable (1). A probe (111) facing the roller is provided on the upper side of the mounting frame (11). A moving assembly (2) is provided on the mounting frame (11) to drive the probe (111) to move along the length direction of the roller.

5. The roll hardness testing device according to claim 4, characterized in that: The connecting assembly (8) includes a gear ring (81) located at one end of the rotating roller (32) near the drive motor (321), a first gear (82) meshing on one side of the gear ring (81), the drive motor (321) being mounted at the shaft of the first gear (82), and a control element (83) connecting the gear ring (81) and the rotating roller (32) being provided.

6. The roll hardness testing device according to claim 5, characterized in that: The control component (83) includes a ratchet (831) that is coaxial with the rotating roller (32) and fixedly connected to the end of the rotating roller (32). The ratchet (831) is inserted into the gear ring (81) and is coaxial with the gear ring (81). A pawl (832) that engages with the ratchet (831) is hinged to the inner side wall of the gear ring (81).

7. The roll hardness testing device according to claim 6, characterized in that: The moving component (2) includes a second lead screw (25) arranged along the length of the workbench (1) and rotatably connected to the mounting bracket (11). The upper side of the probe (111) is provided with a drive block (21) threadedly connected to the second lead screw (25). A second hydraulic cylinder (24) is provided between the drive block (21) and the probe (111).

8. The roll hardness testing device according to claim 7, characterized in that: A belt (26) is provided between the first gear (82) and the second lead screw (25) to connect the two.

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