Direct drive two-high rolling mill arrangement

Abstract

The application discloses a kind of direct connection drive two-roll mill device, it is related to rolling mill equipment technical field;To solve the problem;Specifically including machine body, two bearing components are symmetrically arranged on the machine body along its longitudinal direction, each bearing component is rotatably equipped with roll piece, further comprising: mounting bracket and cutting mechanism, cutting mechanism includes fixed part coaxially fixed to the shaft end of roll piece, separate part coaxially arranged with driving motor and separate drive assembly, fixed part and separate part are connected by synchronous assembly separable transmission connection.The cutting mechanism formed by fixed part, separate part, synchronous assembly and separate drive assembly can quickly perform disengaging action when temperature sensor monitors that the temperature of fixed part or separate part exceeds threshold value, form air gap between fixed part and separate part, directly cut off axial heat transfer between the two, prevent high-temperature side heat from continuing to conduct to the other side, avoid temperature rise superposition caused by bidirectional thermal coupling.

Description

Technical Field

[0001] This invention relates to the field of rolling mill equipment technology, and in particular to a direct-drive two-roll rolling mill device. Background Technology

[0002] The direct-drive two-roll rolling mill is a highly efficient transmission configuration in the field of two-roll rolling mills. Its core feature is that the power source is directly connected to the roll shaft system through an extremely short transmission chain, eliminating the large intermediate transmission links such as independent reduction gearboxes, long couplings, and multi-stage distribution gear sets found in traditional transmission schemes. It relies on two parallel rolls to apply rolling extrusion pressure to the metal billet, achieving plastic deformation and dimensional shaping of the metal material. Among them, the independent direct-drive configuration of the two rolls, by configuring a power unit for each of the two rolls, can effectively improve the operating accuracy of the rolls and the rolling process efficiency.

[0003] However, the rolling heat generated during the operation of the rolls can be directly conducted to the inside of the direct drive motor through the roll shaft, and the heat loss generated by the direct drive motor itself will also be conducted back to the roll shaft. The heat of the two is superimposed, forming a two-way thermal conduction coupling between the rolls and the motor.

[0004] Within the normal temperature threshold range, the motor and rolls can maintain stable operation; however, when the temperature of either component exceeds the threshold, heat from the high-temperature side will be continuously transferred bidirectionally through the roll-shaft connection structure, causing the temperature on the other side to rise synchronously, forming a vicious cycle of temperature rise. Specifically, the increased temperature rise on the motor side will accelerate the aging of winding insulation and the demagnetization of permanent magnets, shortening the service life of the motor; the increased temperature rise on the roll side will increase the thermal deformation of the roll system, increase the difficulty of controlling the roll gap accuracy, and ultimately affect the dimensional accuracy of the rolled product. If a cooling structure is set at the connection between the roll shaft and the motor to block heat conduction, there are generally defects such as delayed cooling response and long effective period, which cannot block the thermal coupling path in time at the beginning of the temperature rise, and the motor and rolls will still inevitably be affected by thermal shock. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a direct-drive two-roll rolling mill device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A direct-drive two-roll rolling mill device includes a machine body with two bearing components symmetrically arranged along its longitudinal direction. Each bearing component is rotatably mounted with a roll. The device also includes: a mounting frame, with a drive motor fixedly mounted on the side of each bearing component, the output shaft of the drive motor being coaxially arranged with the corresponding roll; and a cutting mechanism, including a fixed part coaxially fixed to the end of the roll shaft, a separating part coaxially arranged with the drive motor, and a separating drive assembly. The fixed part and the separating part are detachably connected via a synchronization assembly to transmit the torque output by the drive motor to the roll. When the temperature of the fixed part or the separating part exceeds a threshold, the separating part disengages from the fixed part via the separating drive assembly to cut off axial heat transfer between the fixed part and the separating part.

[0007] Preferably, the separating part has a plurality of fitting protrusions at one end near the fixing part, the plurality of fitting protrusions are equidistantly arranged around the axis of the separating part, and the fixing part has a plurality of fitting grooves corresponding one-to-one with the fitting protrusions at one end near the separating part, each of the fitting grooves being adapted to be movably inserted into the corresponding fitting protrusion. A vertical frame is mounted on the mounting bracket, and a temperature sensor is mounted on the vertical frame to sense the temperature of the separation part and the fixing part.

[0008] Furthermore: a heat-insulating intermediate body is provided at one end of the fixing part near the separating part, and the heat-insulating intermediate body is in movable contact with the separating part; The heat insulation intermediate body has several through holes that correspond one-to-one with the fitting protrusions along its axial direction. The end of each fitting protrusion can pass through the corresponding through hole and be inserted into the fitting groove. The insulation intermediate is equipped with an insulation core.

[0009] Based on the aforementioned solution: a first heat insulation layer is provided on the end face of the fixing part near the roll component; The fixed part is coaxially connected to a fixing connector at one end near the roll piece, which allows the ends of the roll piece to be docked and fixed. Several first heat dissipation fins are equidistantly arranged on the outer side wall of the fixed connector around its axis.

[0010] Furthermore, a second heat insulation layer is provided on the end face of the separation part near the drive motor; The separation section is coaxially connected to a telescopic sleeve at one end near the drive motor. The telescopic sleeve has a telescopic groove with an opening at one end, and a stabilizing shaft is axially slidably fitted at the opening of the telescopic groove. A support ring is coaxially connected to the stabilizing shaft via a support rod. Several sliding rods are arranged along the axial direction at the end of the separating part away from the fixed part. Each sliding rod passes through the support ring and slides with the support ring. The telescopic sleeve has several second heat dissipation fins arranged around its axis on its outer side wall. The inner wall of the telescopic groove is provided with several guide grooves around its axis, and each guide groove extends along the axial direction of the telescopic sleeve. The outer wall of the stabilizing shaft is provided with several guide protrusions that correspond one-to-one with the guide grooves along its axial direction, and each guide protrusion slides in cooperation with the corresponding guide groove.

[0011] As a further aspect of the present invention: a cone-shaped buffer column is coaxially connected to the bottom wall of the telescopic groove, and a buffer groove with the same shape as the buffer column and which allows the buffer column to be movably inserted is coaxially opened at one end of the stabilizing shaft inside the telescopic groove. Several pushing grooves are equidistantly arranged on the inner sidewall of the buffer groove around its axis. Each pushing groove extends radially along the buffer groove. A deceleration block is slidably connected in each pushing groove. The end of the deceleration block near the axis of the buffer groove is provided with a first inclined part that is adapted to the outer wall of the buffer column. A pushing spring is connected between the deceleration block and the end of the pushing groove.

[0012] Meanwhile, the synchronization component includes several synchronization rods equidistantly arranged around the axis of the separation part, and each synchronization rod extends along the axial direction of the separation part. Each of the aforementioned synchronizing rods is provided with a locking body and a sliding body. The outer side wall of the fixed part is provided with a locking groove that corresponds to a plurality of locking bodies in a radial direction. Each of the aforementioned locking grooves is movably inserted into the corresponding locking body. The outer wall of the separating part is provided with sliding grooves that correspond one-to-one with a plurality of sliding bodies along its radial direction. The end of each sliding body is slidably fitted in the corresponding sliding groove and is connected to at least one tension spring. The ends of the plurality of tension springs away from the sliding bodies are all connected to the ends of the sliding grooves.

[0013] As a preferred embodiment of the present invention: each of the synchronizing rods has an extension body at one end along its extension direction, and a stabilizing body is provided at the end of the extension body extending radially along the separation portion; A stabilizing groove is provided on the outer side wall of the stabilizing shaft along its radial direction. The stabilizing body extends through the side wall of the telescopic sleeve into the stabilizing groove and is movably inserted into the stabilizing groove. The stabilizing body and the side wall of the telescopic sleeve are in sliding fit. A fixing frame is connected to one end face of the separation part near the stabilizer. A guide rod is fixedly connected to the end of the extension body. One end of the guide rod passes through the fixing frame and slides with the fixing frame. A stabilizing spring is sleeved on the outside of the guide rod. The two ends of the stabilizing spring are connected to the extension body and the fixing frame, respectively. The fixed frame has a through-hole with a moving slot that matches the width of the synchronizing rod.

[0014] Meanwhile, the separation drive assembly includes a moving block, an active ring, a push bearing, a power ring, and a telescopic rod; Each of the aforementioned synchronizing rods is connected to a movable block. The movable block has a wedge-shaped pressure groove, and the opening of the pressure groove faces the fixed part. The active ring is located on the side of the movable block close to the fixed part, and the active ring is coaxially sleeved on the outside of the fixed part. The active ring has a second inclined surface that matches the inclined surface of the pressure groove. The active ring is coaxially connected to the inner ring wall of the push bearing, and the inner ring wall of the power ring is coaxially connected to the outer ring wall of the push bearing. Two reciprocating protrusions are connected to the outer ring wall of the power ring. Telescopic rods are provided on both sides of the fixed part, and the telescopic rods are mounted on the mounting frame. The movable end of the telescopic rod is connected to the corresponding reciprocating protrusion.

[0015] As an optimized solution of the present invention: the separation drive assembly further includes a separation spring and an axial push plate; When the separating part and the fixing part are docked and locked, an axially extending separating cavity is formed inside. One end of the separating cavity extends from the fixing part through the heat insulation intermediate body into the separating part. One end of the separating spring is connected to the end of the separating cavity located in the fixing part. The axial push plate is slidably engaged with the separating cavity. The other end of the separating spring is connected to the axial push plate. An elastic pad is embedded in the end of the axial push plate facing the separating part, and the axial push plate is in movable contact with the separating part.

[0016] The beneficial effects of this invention are as follows: 1. The present invention uses a cutting mechanism consisting of a fixed part, a separating part, a synchronization component and a separating drive component. When the temperature sensor detects that the temperature of the fixed part or the separating part exceeds the threshold, it can quickly perform a disengagement action, so that an air gap is formed between the fixed part and the separating part, directly cutting off the axial heat transfer between the two, preventing the heat from the high-temperature side from being continuously conducted to the other side, and avoiding the temperature rise caused by bidirectional thermal coupling. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a direct-drive two-roll rolling mill device proposed in this invention; Figure 2This is a schematic diagram of the planar structure of a direct-drive two-roll rolling mill device proposed in this invention; Figure 3 This invention proposes a direct-drive two-roll rolling mill device. Figure 1 Partial structural diagram Figure 1 ; Figure 4 This invention proposes a direct-drive two-roll rolling mill device. Figure 1 Partial structural diagram Figure 2 ; Figure 5 This is a three-dimensional structural diagram of the cutting mechanism of a direct-drive two-roll rolling mill device proposed in this invention; Figure 6 This is a half-section structural diagram of the cutting mechanism of a direct-drive two-roll rolling mill device proposed in this invention; Figure 7 This invention proposes a direct-drive two-roll rolling mill device. Figure 6 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This invention proposes a direct-drive two-roll rolling mill device. Figure 6 Enlarged schematic diagram of the structure at point B; Figure 9 This invention proposes a direct-drive two-roll rolling mill device. Figure 6 Enlarged schematic diagram of the structure at point C; Figure 10 This is an exploded structural diagram of the cutting mechanism of a direct-drive two-roll mill device proposed in this invention. Figure 11 This is a half-sectional structural diagram of the fixing part and the separating part of a direct-drive two-roll rolling mill device proposed in this invention. Figure 12 This is a schematic diagram of the disassembled structure of the synchronizing rod, fixing part, and separating part of a direct-drive two-roll rolling mill device proposed in this invention; Figure 13 This is an exploded structural diagram of the fixing part, separating part, and heat insulation intermediate of a direct-drive two-roll rolling mill device proposed in this invention.

[0018] In the diagram: 1. Machine body; 2. Bearing component; 3. Roll component; 4. Mounting frame; 5. Drive motor; 6. Fixing part; 60. First heat insulation layer; 7. Separation part; 70. Second heat insulation layer; 8. Fitting protrusion; 9. Fitting groove; 10. Vertical frame; 11. Temperature sensing element; 12. Heat insulation intermediate body; 13. Through hole; 14. Heat insulation core; 15. Fixing connector; 16. First heat dissipation fin; 17. Telescopic sleeve; 18. Telescopic groove; 19. Stabilizing shaft; 20. Support ring; 21. Support rod; 22. Sliding rod; 23. Second heat dissipation fin; 24. Guide groove; 25. Guide protrusion; 26. Buffer column; 27. Buffer groove; 2 8. Push groove; 29. ​​Deceleration block; 30. First inclined section; 31. Push spring; 32. Synchronizing rod; 33. Locking body; 34. Sliding body; 35. Locking groove; 36. Sliding groove; 37. Tension spring; 38. Extension body; 39. Stabilizer; 40. Stabilizer groove; 41. Fixing frame; 42. Guide rod; 43. Stabilizing spring; 44. Moving groove; 45. Moving block; 46. Active ring; 47. Push bearing; 48. Power ring; 49. Telescopic rod; 50. Pressure groove; 51. Second inclined section; 52. Reciprocating protrusion; 53. Separation spring; 54. Axial push plate; 55. Separation cavity; 56. Elastic pad; 57. Adjustment mechanism. Detailed Implementation

[0019] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] A direct-drive two-roll rolling mill device, such as Figures 1-13 As shown, the machine includes a body 1, which refers to a direct-drive two-roll rolling mill in the prior art. Two bearing components 2 are symmetrically arranged on the body 1 along its longitudinal direction. The upper bearing component 2 can be adjusted in height by an adjustment mechanism 57, thereby adjusting the distance between the two bearing components 2. Each bearing component 2 is rotatably equipped with a rolling roll 3. Furthermore, the machine body 1 is also equipped with a corresponding control system for regulating rolling parameters and equipment operating status. It also includes: mounting bracket 4 and cutting mechanism; Each bearing component 2 has a mounting bracket 4 on its side, and a drive motor 5 is fixedly mounted on the mounting bracket 4. The output shaft of the drive motor 5 is coaxially arranged with the corresponding roll component 3, forming a transmission configuration in which the two roll components 3 are driven independently. The cutting mechanism includes a fixed part 6 coaxially fixed to the end of the roll 3 shaft, a separation part 7 coaxially disposed with the drive motor 5, and a separation drive assembly. The fixed part 6 and the separation part 7 are detachably connected by a synchronization assembly to transmit the torque output by the drive motor 5 to the roll 3. When the temperature of the fixed part 6 or the separation part 7 exceeds a threshold, the separation part 7 performs a disengagement action from the fixed part 6 through the separation drive assembly to cut off the axial heat transfer between the fixed part 6 and the separation part 7.

[0022] like Figure 5 As shown, specifically, the end face of the fixing part 6 near the roll 3 is provided with a first heat insulation layer 60, which is used to block part of the heat conduction from the roll 3 to the main body of the fixing part 6. The end of the fixing part 6 near the roll 3 is coaxially connected to a fixing connector 15. The fixing connector 15 can be used to fix the end of the roll 3, so as to realize the synchronous rotation of the fixing part 6 and the roll 3. In order to facilitate the heat dissipation of the fixing connector 15 itself, a number of first heat dissipation fins 16 are equidistantly arranged on the outer side wall of the fixing connector 15 around its axis. The number of first heat dissipation fins 16 can rotate synchronously with the fixing connector 15, and dissipate the heat conducted to the fixing connector 15 through air convection, thereby reducing the heat flow transferred to the main body of the fixing part 6.

[0023] A heat-insulating intermediate body 12 is provided at one end of the fixing part 6 near the separating part 7. The heat-insulating intermediate body 12 is in movable contact with the separating part 7. A heat-insulating core 14 is provided inside the heat-insulating intermediate body 12. The heat-insulating core 14 can be made of aerogel heat-insulating material, which can further block the axial heat transferred from the fixing part 6 to the separating part 7. When the fixing part 6 and the separating part 7 are engaged, the heat conduction path formed by the direct contact between their end faces is blocked, and the torque is transmitted only through the transmission cooperation structure.

[0024] like Figure 10 As shown, the separating part 7 has several fitting protrusions 8 at one end near the fixing part 6. The fitting protrusions 8 are equidistantly arranged around the axis of the separating part 7. The fixing part 6 has several fitting grooves 9 corresponding to the fitting protrusions 8 at one end near the separating part 7. Each fitting groove 9 is suitable for movably inserting into the corresponding fitting protrusion 8. The heat insulation intermediate body 12 mentioned above has several through holes 13 corresponding to the fitting protrusions 8 along its axial direction. When the fixing part 6 and the separating part 7 are in the engaged state, the end of each fitting protrusion 8 can pass through the corresponding through hole 13 and insert into the fitting groove 9, so as to jointly transmit circumferential torque with the synchronization component and ensure the coaxial docking accuracy of the two.

[0025] A second heat insulation layer 70 is provided on the end face of the separation part 7 near the drive motor 5 to block the heat conduction from the drive motor 5 to the main body of the separation part 7. A telescopic sleeve 17 is coaxially connected to the end of the separation part 7 near the drive motor 5. The telescopic sleeve 17 has a telescopic groove 18 with an opening at one end. A stabilizing shaft 19 is axially slidably fitted at the opening of the telescopic groove 18. A support ring 20 is coaxially connected to the stabilizing shaft 19 through a support rod 21. Several sliding rods 22 are provided along the axial direction of the end of the separation part 7 away from the fixed part 6. Each sliding rod 22 passes through the support ring 20 and slides with the support ring 20. This structure can maintain the axial movement accuracy of the separation part 7 during the process of engagement and disengagement by sliding the sliding rods 22 and the support ring 20, ensuring that it always remains coaxial with the fixed part 6 and avoiding jamming or transmission error caused by misalignment.

[0026] like Figure 10 As shown, the outer wall of the telescopic sleeve 17 is provided with several second heat dissipation fins 23 around its axis, which can rotate synchronously with the telescopic sleeve 17 to dissipate heat from the separation part 7 side and reduce heat conduction efficiency. The inner wall of the telescopic groove 18 is provided with several guide grooves 24 around its axis, each guide groove 24 extending along the axial direction of the telescopic sleeve 17. The outer wall of the stabilizing shaft 19 is provided with several guide protrusions 25 corresponding to the guide grooves 24 along its axial direction. Each guide protrusion 25 slides in cooperation with the corresponding guide groove 24. This guide cooperation structure can ensure that the telescopic sleeve 17 and the stabilizing shaft 19 can only slide relative to each other axially and maintain synchronous rotation in the circumferential direction, ensuring the stability of torque transmission.

[0027] A conical buffer column 26 is coaxially connected to the bottom wall of the telescopic groove 18. The end of the stabilizing shaft 19 located inside the telescopic groove 18 is coaxially provided with a buffer groove 27 that is consistent with the shape of the buffer column 26 and can be movably inserted into the buffer column 26. Several pushing grooves 28 are equidistantly arranged around its axis on the inner side wall of the buffer groove 27. Each pushing groove 28 extends radially along the buffer groove 27. A deceleration block 29 is slidably connected in each pushing groove 28. The end of the deceleration block 29 near the axis of the buffer groove 27 is provided with a first inclined part 30 that is adapted to the outer wall of the buffer column 26. A pushing spring 31 is connected between the deceleration block 29 and the end of the pushing groove 28.

[0028] When the separating part 7 quickly disengages towards the drive motor 5, the telescopic sleeve 17 moves axially synchronously with the separating part 7. The buffer column 26 is inserted into the buffer groove 27 along with the telescopic sleeve 17. The conical surface of the buffer column 26 contacts and presses against the first inclined surface 30 of the deceleration block 29, pushing the deceleration block 29 to slide outward along the push groove 28 and compressing the push spring 31. The spring force of the push spring 31 absorbs the impact energy of the disengagement action, achieving buffer deceleration and avoiding damage to the components caused by excessively fast separation action. When the separating part 7 re-engages, the buffer column 26 withdraws outward, and the push spring 31 rebounds, driving the deceleration block 29 to re-engage. This also buffers the engagement process and reduces the impact load when the fitting protrusion 8 and the fitting groove 9 are inserted.

[0029] like Figure 10 as well as Figure 11 As shown, the synchronization assembly is used to realize circumferential synchronous transmission between the fixed part 6 and the separating part 7. The synchronization assembly includes a number of synchronization rods 32 that are equidistantly arranged around the axis of the separating part 7, and each synchronization rod 32 extends along the axial direction of the separating part 7. Each synchronizing rod 32 is provided with a locking body 33 and a sliding body 34. The outer side wall of the fixing part 6 is provided with locking grooves 35 corresponding to each of the locking bodies 33 along its radial direction. Each locking groove 35 is movably inserted into the corresponding locking body 33. The outer side wall of the separating part 7 is provided with sliding grooves 36 corresponding to each of the sliding bodies 34 along its radial direction. The end of each sliding body 34 is slidably fitted in the corresponding sliding groove 36 and is connected to at least one tension spring 37. The ends of the tension springs 37 away from the sliding body 34 are all connected to the ends of the sliding grooves 36.

[0030] In the initial state, the tension of the tension spring 37 drives the sliding body 34 to slide along the sliding groove 36 towards the axis of the separating part 7, so that the synchronizing rod 32 is in a radially inward position. The locking body 33 is inserted into the locking groove 35 of the fixing part 6 to achieve axial locking between the fixing part 6 and the separating part 7, ensuring stable torque transmission. When it is necessary to disengage, the synchronizing rod 32 moves radially outward under the action of external force, driving the locking body 33 to disengage from the locking groove 35 and releasing the axial lock. At the same time, the sliding body 34 slides outward along the sliding groove 36 and stretches the tension spring 37 to reserve elastic force for subsequent reset locking.

[0031] like Figure 12 As shown, each synchronizing rod 32 has an extension body 38 at one end along its extension direction. The end of the extension body 38 is provided with a stabilizer 39 extending radially along the separation part 7. A stabilizer groove 40 is provided radially on the outer side wall of the stabilizer shaft 19. The stabilizer 39 extends through the side wall of the telescopic sleeve 17 into the stabilizer groove 40 and is movably inserted into the stabilizer groove 40. The stabilizer 39 and the side wall of the telescopic sleeve 17 are in sliding fit. A fixing frame 41 is connected to one end face of the separation part 7 near the stabilizer 39. A guide rod 42 is fixedly connected to the end of the extension 38. One end of the guide rod 42 passes through the fixing frame 41 and slides with the fixing frame 41. A stabilizing spring 43 is sleeved on the outside of the guide rod 42. The two ends of the stabilizing spring 43 are connected to the extension 38 and the fixing frame 41 respectively. The stabilizing spring 43 can assist the tension spring 37 in maintaining the inward state of the synchronizing rod 32 and improve the reliability of locking. A moving groove 44 adapted to the width of the synchronizing rod 32 is opened through the fixing frame 41, which allows the part of the synchronizing rod 32 to pass through when moving radially.

[0032] In this structure, the sliding fit between the guide rod 42 and the fixed frame 41 provides guidance for the radial movement of the synchronizing rod 32, ensuring a smooth and unbiased movement. The insertion fit between the stabilizer 39 and the stabilizing groove 40 further strengthens the circumferential synchronization between the synchronizing rod 32 and the stabilizing shaft 19, making the torque transmission path more stable without affecting the radial movement stroke of the synchronizing rod 32. At the same time, it can lock the axial relationship between the telescopic sleeve 17 and the stabilizing shaft 19, improving their stability and preventing slippage between the telescopic sleeve 17 and the stabilizing shaft 19 during torque transmission. When the synchronizing rod 32 moves radially away from the axis of the separating part 7, it can drive the stabilizer 39 to disengage from the stabilizing groove 40, thereby contacting the locked state of the telescopic sleeve 17 and the stabilizing shaft 19. The stabilizing shaft 19 can then slide back and forth within the telescopic sleeve 17. It should be noted that the length of the stabilizer 39 is less than or equal to the length of the locking body 33, to ensure that when the synchronizing rod 32 releases the axial locking state of the fixed part 6 and the separating part 7, the telescopic sleeve 17 and the stabilizing shaft 19 can first contact the mutually locked state.

[0033] like Figure 4 As shown, a vertical frame 10 is mounted on the mounting bracket 4, and a temperature sensor 11 is mounted on the vertical frame 10. The temperature sensor 11 is used to sense the temperature of the separation part 7 and the fixing part 6 in real time, and feed the temperature signal back to the control system as the trigger basis for the cutting mechanism to operate.

[0034] The separation drive assembly is used to drive the synchronous rod 32 to unlock and drive the separation part 7 to axially disengage. The separation drive assembly includes a moving block 45, an active ring 46, a push bearing 47, a power ring 48, and a telescopic rod 49. Each synchronizing rod 32 is connected to a moving block 45. The moving block 45 has a wedge-shaped pressure groove 50, and the opening of the pressure groove 50 faces the fixed part 6. The active ring 46 is located on the side of the moving block 45 close to the fixed part 6, and the active ring 46 is coaxially sleeved on the outside of the fixed part 6. The active ring 46 has a second inclined part 51 that matches the inclined surface of the pressure groove 50. The active ring 46 is coaxially connected to the inner ring wall of the push bearing 47, and the inner ring wall of the power ring 48 is coaxially connected to the outer ring wall of the push bearing 47. Two reciprocating protrusions 52 are connected to the outer ring wall of the power ring 48. Telescopic rods 49 are provided on both sides of the fixing part 6, and the telescopic rods 49 are installed on the mounting bracket 4. The movable end of the telescopic rod 49 is connected to the corresponding reciprocating protrusion 52.

[0035] When the temperature sensor 11 detects that the temperature of the fixed part 6 or the separating part 7 exceeds the set threshold, the control system issues a command, the telescopic rod 49 starts and extends, pushing the power ring 48 to move axially toward the separating part 7; since the inner and outer rings of the push bearing 47 can rotate relative to each other, the power ring 48 can drive the active ring 46 to move axially synchronously when it moves, and does not affect the synchronous rotation of the active ring 46 with the fixed part 6 and the separating part 7. During the movement of the active ring 46, its second inclined part 51 is inserted into the pressure groove 50 of the moving block 45. Through the squeezing action of the inclined part, the moving block 45 is pushed to drive the synchronous rod 32 to move radially outward, so that the locking body 33 is disengaged from the locking groove 35, and the axial unlocking is completed.

[0036] Furthermore, the separation drive assembly also includes a separation spring 53 and an axial push plate 54; When the separating part 7 is docked and locked with the fixing part 6, an axially extending separating cavity 55 is formed inside it. One end of the separating cavity 55 extends from the fixing part 6 through the heat insulation intermediate body 12 into the separating part 7. One end of the separating spring 53 is connected to the end of the separating cavity 55 located in the fixing part 6. The axial push plate 54 is slidably engaged with the separating cavity 55. The other end of the separating spring 53 is connected to the axial push plate 54. An elastic pad 56 is embedded in the end of the axial push plate 54 facing the separating part 7, and the axial push plate 54 is in movable contact with the separating part 7.

[0037] When the separating part 7 and the fixing part 6 are in the engaged and locked state, the end face of the separating part 7 presses against the axial push plate 54, causing the separating spring 53 to be in a compressed and stored state. When the synchronization component completes axial unlocking, the elastic force of the separating spring 53 is released, pushing the axial push plate 54 to move towards the separating part 7, thereby pushing the separating part 7 away from the fixing part 6 axially, so that the fitting protrusion 8 is dislodged from the fitting groove 9 and the through hole 13, forming an air gap between the fixing part 6 and the separating part 7, cutting off the axial heat conduction path and preventing the heat from the high-temperature side from continuing to be transferred to the other side. The elastic pad 56 can buffer the contact stress between the axial push plate 54 and the separating part 7, avoiding damage to the components caused by rigid collision.

[0038] It should be noted that when the temperature sensor 11 senses that the temperature of the separating part 7 or the fixing part 6 exceeds the threshold, the temperature sensor 11 transmits the temperature electrical signal to the control system. The control system outputs a stop command for the drive motor 5 and a start command for the telescopic rod 49. The stop command for the drive motor 5 keeps the drive motor 5 in a stopped state, so that when the separating part 7 separates from the fixing part 6, the torque is not too large, which would prevent the separating part 7 from the fixing part 6 from being unable to separate effectively.

[0039] When the operating temperature of the equipment drops back to the threshold range, the control system controls the telescopic rod 49 to retract, driving the power ring 48 and the active ring 46 to reset, and the inclined extrusion pressure disappears; at the same time, the separation part 7 can move towards the fixed part 6 under external force or worker assistance, and the synchronous rod 32 moves radially inward to reset under the rebound action of the tension spring 37 and the stabilizing spring 43, the fitting protrusion 8 is re-inserted into the fitting groove 9, the locking body 33 is correspondingly locked into the locking groove 35, the transmission connection is restored, and the equipment returns to the normal rolling operation state.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A direct-drive two-roll rolling mill device, comprising a machine body (1), wherein two bearing components (2) are symmetrically arranged along the longitudinal direction of the machine body (1), and each bearing component (2) is rotatably mounted with a rolling roll (3), characterized in that, Also includes: Mounting bracket (4), each bearing component (2) is provided with a mounting bracket (4) on its side, and a drive motor (5) is fixedly mounted on the mounting bracket (4), and the output shaft of the drive motor (5) is coaxially arranged with the corresponding roll component (3); The cutting mechanism includes a fixing part (6) coaxially fixed to the end of the roller (3), a separating part (7) coaxially disposed with the drive motor (5), and a separating drive assembly; The fixed part (6) and the separating part (7) are detachably connected by a synchronous component to transmit the torque output by the drive motor (5) to the roll piece (3); when the temperature of the fixed part (6) or the separating part (7) exceeds the threshold, the separating part (7) performs a disengagement action from the fixed part (6) through the separating drive component to cut off the axial heat transfer between the fixed part (6) and the separating part (7); The separation part (7) is coaxially connected to a telescopic sleeve (17) at one end near the drive motor (5). The telescopic sleeve (17) has a telescopic groove (18) with an opening at one end inside. A stabilizing shaft (19) is axially slidably fitted at the opening of the telescopic groove (18). A support ring (20) is coaxially connected to the stabilizing shaft (19) via a support rod (21). A plurality of sliding rods (22) are provided along the axial direction at the end of the separating part (7) away from the fixed part (6). Each sliding rod (22) passes through the support ring (20) and slides with the support ring (20). The telescopic sleeve (17) has several second heat dissipation fins (23) arranged around its axis on the outer side wall. The synchronization component includes a plurality of synchronization rods (32) equidistantly arranged around the axis of the separation part (7), and each synchronization rod (32) extends along the axial direction of the separation part (7); The separation drive assembly includes a moving block (45), an active ring (46), a push bearing (47), a power ring (48), and a telescopic rod (49).

2. The direct-drive two-roll rolling mill device according to claim 1, characterized in that, The separating part (7) has a plurality of fitting protrusions (8) at one end near the fixing part (6). The plurality of fitting protrusions (8) are equidistantly arranged around the axis of the separating part (7). The fixing part (6) has a plurality of fitting grooves (9) corresponding to the fitting protrusions (8) at one end. Each fitting groove (9) is suitable for movably inserting into the corresponding fitting protrusion (8). A vertical frame (10) is mounted on the mounting bracket (4), and a temperature sensor (11) is mounted on the vertical frame (10) for sensing the temperature of the separation part (7) and the fixing part (6).

3. The direct-drive two-roll rolling mill device according to claim 2, characterized in that, A heat-insulating intermediate body (12) is provided at one end of the fixed part (6) near the separating part (7), and the heat-insulating intermediate body (12) is in movable contact with the separating part (7); The heat insulation intermediate (12) has several through holes (13) that correspond one-to-one with the fitting protrusions (8) along its axial direction. The end of each fitting protrusion (8) can pass through the corresponding through hole (13) and be inserted into the fitting groove (9). The heat insulation intermediate (12) is provided with a heat insulation core (14) inside.

4. The direct-drive two-roll rolling mill device according to claim 1, characterized in that, The fixing part (6) has a first heat insulation layer (60) on one end face near the roll (3); The fixed part (6) is coaxially connected to a fixed connector (15) at one end near the roll (3) for fixing the end of the roll (3). The outer wall of the fixed connector (15) is provided with a number of first heat dissipation fins (16) at equal intervals around its axis.

5. The direct-drive two-roll rolling mill device according to claim 2, characterized in that, The separation part (7) has a second heat insulation layer (70) on one end face near the drive motor (5); The inner wall of the telescopic groove (18) is provided with a plurality of guide grooves (24) around its axis. Each guide groove (24) extends along the axial direction of the telescopic sleeve (17). The outer wall of the stabilizing shaft (19) is provided with a plurality of guide protrusions (25) that correspond one-to-one with the guide grooves (24). Each guide protrusion (25) slides in cooperation with the corresponding guide groove (24).

6. The direct-drive two-roll rolling mill device according to claim 5, characterized in that, The bottom wall of the telescopic groove (18) is coaxially connected to a cone-shaped buffer column (26). The end of the stabilizing shaft (19) located inside the telescopic groove (18) is coaxially provided with a buffer groove (27) that is consistent with the shape of the buffer column (26) and allows the buffer column (26) to be movably inserted. The inner wall of the buffer groove (27) is provided with a number of push grooves (28) equidistantly around its axis. Each push groove (28) extends radially along the buffer groove (27). Each push groove (28) is slidably connected with a deceleration block (29). The end of the deceleration block (29) near the axis of the buffer groove (27) is provided with a first inclined surface (30) that is adapted to the outer wall of the buffer column (26). A push spring (31) is connected between the deceleration block (29) and the end of the push groove (28).

7. A direct-drive two-roll rolling mill device according to claim 6, characterized in that, Each of the aforementioned synchronizing rods (32) is provided with a locking body (33) and a sliding body (34). The outer side wall of the fixing part (6) is provided with a locking groove (35) that corresponds to a plurality of locking bodies (33) along its radial direction. Each of the aforementioned locking grooves (35) is movably inserted into the corresponding locking body (33).

8. A direct-drive two-roll rolling mill device according to claim 7, characterized in that, Each of the synchronizing rods (32) has an extension body (38) at one end along its extension direction, and a stabilizer (39) is provided at the end of the extension body (38) along the radial extension of the separation part (7). A stabilizing groove (40) is provided on the outer side wall of the stabilizing shaft (19) along its radial direction. The stabilizing body (39) extends through the side wall of the telescopic sleeve (17) into the stabilizing groove (40) and is movably inserted into the stabilizing groove (40). The stabilizing body (39) and the side wall of the telescopic sleeve (17) are in sliding fit. A fixing frame (41) is connected to one end face of the separation part (7) near the stabilizer (39). A guide rod (42) is fixedly connected to the end of the extension (38). One end of the guide rod (42) passes through the fixing frame (41) and slides with the fixing frame (41). A stabilizing spring (43) is sleeved on the outside of the guide rod (42). The two ends of the stabilizing spring (43) are connected to the extension (38) and the fixing frame (41) respectively. The fixed frame (41) has a through-hole groove (44) that matches the width of the synchronizing rod (32).

9. A direct-drive two-roll rolling mill device according to claim 1, characterized in that, Each of the aforementioned synchronizing rods (32) is connected to a moving block (45). The moving block (45) has a wedge-shaped pressure groove (50) with the opening facing the fixed part (6). The active ring (46) is located on the side of the moving block (45) close to the fixed part (6) and is coaxially sleeved on the outside of the fixed part (6). The active ring (46) has a second inclined surface (51) that matches the inclined surface of the pressure groove (50). The active ring (46) is coaxially connected to the inner ring wall of the push bearing (47), and the inner ring wall of the power ring (48) is coaxially connected to the outer ring wall of the push bearing (47). Two reciprocating protrusions (52) are connected to the outer ring wall of the power ring (48). Telescopic rods (49) are provided on both sides of the fixing part (6), and the telescopic rods (49) are installed on the mounting frame (4). The movable end of the telescopic rod (49) is connected to the corresponding reciprocating protrusion (52).

10. A direct-drive two-roll rolling mill device according to claim 1, characterized in that, The separation drive assembly also includes a separation spring (53) and an axial push plate (54); When the separating part (7) is docked and locked with the fixing part (6), an axially extending separating cavity (55) is formed inside it. One end of the separating cavity (55) extends from the fixing part (6) through the heat insulation intermediate body (12) into the separating part (7). One end of the separating spring (53) is connected to the end of the separating cavity (55) located in the fixing part (6). The axial push plate (54) is slidably engaged with the separating cavity (55). The other end of the separating spring (53) is connected to the axial push plate (54). An elastic pad (56) is embedded in the end of the axial push plate (54) facing the separating part (7). The axial push plate (54) and the separating part (7) are in movable contact.

Images