Deviation correcting device capable of automatically resetting

Abstract

The invention provides an automatic reset deviation rectifying device, and belongs to the technical field of carrier rollers, the automatic reset deviation rectifying device comprises a roller frame, a center carrier roller and side carrier rollers, the center carrier roller and the side carrier rollers are installed on the roller frame, and the two side carrier rollers are symmetrically arranged along the center of the center carrier roller and are obliquely arranged on the two sides of the center carrier roller outwards; the side carrier rollers are conical carrier rollers with the outer side roller diameter smaller than the inner side roller diameter. According to the deviation rectifying device capable of automatically resetting, through the synergistic effect of the double center carrier rollers and the conical side carrier rollers and the combination of the rotation resetting function of the automatic rotation buffering device, belt deviation can be monitored in real time, the carrier roller angles can be dynamically adjusted, and automatic deviation correction is achieved; when the carrier roller set inclines due to shaking or deviation of a belt, the shifting plate is pushed by the counter-acting force of the spring to automatically rotate to the initial position, so that the carrier roller set is restored to the horizontal state, the defect that a traditional carrier roller set cannot be reset after inclining is overcome, and the problem that belt deviation is aggravated due to inclination of carrier rollers is fundamentally solved.

Description

Technical Field

[0001] This application belongs to the technical field of idlers, and more specifically, relates to a deviation rectifying device with automatic reset function. Background Art

[0002] Currently, the similar products on the market mainly include drum-type deviation rectifying idler sets, reversible large-head idler deviation rectifying idler sets, taper deviation rectifying idler sets, etc. These products have the following defects during operation: Insufficient deviation rectifying adjustment ability: The traditional drum-type idler set generates a deviation rectifying force through the diameter change of the unilateral idler. However, limited by the idler structure, it is difficult to cope with the belt deviation problem under complex working conditions, and the adjustment often fails to reach the desired position; The idler is prone to falling off and scratching the belt: The idler and the bracket are mostly connected by welding or hard connection. The jitter during the belt operation easily causes the idler to fall off, resulting in scratches or even tears on the belt surface; Unable to automatically reset: When the belt deviates, the idler set cannot automatically reset due to the inclination angle, but instead exacerbates the deviation trend, forming a vicious cycle; The central idler has a single function: The central idler of the traditional deviation rectifying idler set is only an ordinary roller body, which only plays an auxiliary supporting role and cannot actively participate in deviation rectification; Limited applicability: The idler set bracket is mostly of a fixed structure, making it difficult to adapt to the installation size requirements of different sites.

[0003] The above problems lead to high maintenance costs, short service life, and potential safety hazards of the existing deviation rectifying devices. There is an urgent need for a new type of deviation rectifying device with optimized structure and high automation degree. Summary of the Invention

[0004] In view of this, the embodiments of this application provide a deviation rectifying device with automatic reset function to solve the problems of high maintenance costs, short service life, and potential safety hazards existing in the prior art.

[0005] To achieve the above object, the technical solution adopted in this application is:

[0006] On the one hand, a deviation rectifying device with automatic reset function is provided, which includes a roller frame, a central idler, and side idlers. The central idler and the side idlers are installed on the roller frame. The two side idlers are symmetrically arranged along the center of the central idler and are inclined outwardly on both sides of the central idler. The side idlers are conical idlers with the outer roller diameter smaller than the inner roller diameter.

[0007] In some embodiments, there are two central idlers, and the two central idlers are installed in parallel on the roller frame in the horizontal direction. The center of the side idler is located on the symmetry plane of the two central idlers.

[0008] In some embodiments, the side idler includes a side idler shaft and a side idler roller body. The side idler roller body is rotatably installed on the side idler shaft, and both ends of the side idler shaft are installed on the roller frame.

[0009] In some embodiments, the roller frame is mounted on a cross beam, and two ends of the cross beam are respectively connected to two fixed bottom plates.

[0010] In some embodiments, two ends of the cross beam are connected to the fixed bottom plates through height adjusting devices.

[0011] In some embodiments, the height adjusting device includes a height adjusting plate. The height adjusting plate and the fixed bottom plate are corresponding "L"-shaped plates. Two ends of the cross beam are respectively fixedly connected to the vertical plates of the height adjusting plate. Matching elongated bolt holes and bolt round holes are respectively provided on the vertical plates of the height adjusting plate and the fixed bottom plate. After adjusting the relative height of the height adjusting plate and the fixed bottom plate, bolts are sequentially passed through the elongated bolt holes and the bolt round holes and then fastened with nuts to tightly connect the height adjusting plate and the fixed bottom plate. The horizontal straight plates of the height adjusting plate and the fixed bottom plate are above the vertical plates. Threaded holes are provided on the horizontal straight plates of the height adjusting plate. After a bolt passes through the threaded hole, the end of the bolt is abutted against the top of the fixed bottom plate. A nut is screwed on the bolt, and the top of the nut is closely attached to the lower part of the horizontal straight plate of the height adjusting plate.

[0012] In some embodiments, the distance between the two fixed bottom plates is adjustable, and two ends of the cross beam are mounted on the two fixed bottom plates through telescopic devices.

[0013] In some embodiments, the telescopic device includes telescopic tubes fixedly mounted on the vertical plates of the height adjusting plates. The telescopic tubes on the two side height adjusting plates are respectively inserted into two ends of the cross beam, and telescopic tube locking structures are provided at both ends of the cross beam.

[0014] In some embodiments, the telescopic tube locking structure includes threaded holes provided at both ends of the cross beam. Set screws are installed in the threaded holes. After the telescopic length of the telescopic tube in the cross beam is adjusted, the end of the set screw is abutted against the outer periphery of the telescopic tube to fixedly connect the cross beam and the telescopic tube.

[0015] In some embodiments, the center idler includes a center idler shaft and a center idler roller body. The center idler roller body is rotatably mounted on the center idler shaft, and two ends of the center idler shaft are mounted on the roller frame.

[0016] In some embodiments, the inclination angle of the side idler can be adjusted within the range of 0 to 30°.

[0017] In some embodiments, the lower end of the side idler shaft is hinged to the idler frame, and the upper end of the side idler shaft is connected to the idler frame through an idler adjusting rod; one end of the idler adjusting rod is hinged to the upper end of the side idler shaft, and the other end of the idler adjusting rod is provided with an external thread. A long circular hole through which the idler adjusting rod can pass is provided on the idler frame. Two nuts are installed on the idler adjusting rod, and the two nuts are respectively arranged on both sides of the idler frame. By adjusting the positions of the two nuts, the length of the idler adjusting rod inserted into the idler frame can be adjusted, and after the adjustment is completed, the idler adjusting rod is fixedly connected to the idler frame.

[0018] In some embodiments, the center idler roller body is installed on the center idler shaft through a self-adjusting roller. A rotating shaft is provided at the center of the center idler shaft, and the center line of the rotating shaft is in the vertical direction. The self-adjusting roller includes a self-adjusting roller body. The center idler roller body is rotatably sleeved outside the self-adjusting roller body, and the center of the self-adjusting roller body is rotatably installed on the center idler shaft along the rotating shaft.

[0019] In some embodiments, both ends of the center idler roller body are installed on the self-adjusting roller body through center idler roller body bearings.

[0020] In some embodiments, shaft sleeves are respectively fixedly provided at the upper and lower ends of the middle part of the self-adjusting roller body, and both ends of the rotating shaft are installed in the shaft sleeves through self-adjusting roller bearings.

[0021] In some embodiments, washers are fixedly connected to both ends of the rotating shaft through bolts, and the washers are attached to the inner rings of the self-adjusting roller bearings.

[0022] In some embodiments, the idler frame is installed on the cross beam through an automatic rotary buffer device;

[0023] The automatic rotary buffer device includes a buffer frame and a buffer assembly. The buffer frame is fixedly installed on the cross beam, and buffer assemblies are installed at both ends of the buffer frame. The buffer assembly includes two concentrically arranged outer tubes. An inner tube is installed inside the outer tube. An outer tube plug plate is provided on the outside of the outer tube, and an inner tube plug plate is provided on the inside of the inner tube. A spring is installed between the outer tube plug plate and the inner tube plug plate. A gap is left between the two inner tubes. Dialing plates are provided on both sides of the idler frame, and the dialing plates are installed in the gap between the two inner tubes. The idler frame is rotatably installed on the buffer frame along the center;

[0024] In the initial state, when the idler frame does not shift, the center of the dialing plate is on the symmetry plane of the two inner tubes. When the idler frame shifts, the idler frame rotates relative to the buffer frame, and the dialing plate on the idler frame rotates with the idler frame. The dialing plate contacts one of the inner tubes and compresses the spring. The spring plays a buffering role, and the spring gives a reaction force to the dialing plate to make the dialing plate automatically return to the initial state.

[0025] The beneficial effect of an automatic reset correction device provided in an embodiment of the present application is that, compared with the prior art, an automatic reset correction device in an embodiment of the present application has dynamic correction and automatic reset capabilities: through the synergistic effect of the dual center rollers and the tapered side rollers, combined with the rotation and reset function of the automatic rotation buffer device, it is possible to monitor the belt deviation in real time and dynamically adjust the roller angle to achieve automatic correction of the deviation; when the belt causes the roller group to tilt due to shaking or deviation, the reaction force of the spring pushes the toggle plate to automatically rotate to the initial position, so that the roller group returns to a horizontal state, avoiding the defect that the traditional roller group cannot be reset after tilting, and fundamentally solving the problem of belt deviation aggravated by roller tilt.

[0026] Improved roller anti-dropping and running stability: The side rollers are hinged at the lower end by pin fixing, and the upper end is connected to the roller frame through the roller adjustment rod. Combined with the variable diameter design of the tapered roller, the risk of roller drop caused by vibration during belt operation is effectively reduced. At the same time, the variable diameter characteristic is used to adaptively adjust the belt deviation, which reduces the probability of scratching the belt and extends the life of the equipment.

[0027] Flexible installation and adaptive adjustment: The double crossbeam realizes the lateral extension and longitudinal height adjustment of the bracket through the "L"-shaped plate structure of the telescopic device and the height adjustment device, which can quickly adapt to the installation size requirements of different on-site equipment; in addition, the inclination angle of the side roller can be adjusted steplessly in the range of 0 to 30° through the roller adjustment lever, further enhancing the scene adaptability of the device.

[0028] Intelligent deviation correction and precise positioning: The self-adjusting roller allows the center roller to rotate around the shaft through the cooperation of the shaft and the self-adjusting roller bearing, thereby compensating for the stress caused by the belt deviation in real time; the angle positioning function of the automatic rotary buffer device can lock the deviation angle through the contact position of the toggle plate and the inner tube when the belt deviates seriously, providing precise deviation correction feedback, which significantly improves the deviation correction accuracy and response speed.

[0029] Simplified structure and convenient maintenance: modular design reduces the number of parts and reduces the difficulty of maintenance. At the same time, all adjustment functions are achieved through mechanical adjustment of bolts or nuts, without the need for complex tools or electronic control systems, reducing operating costs and maintenance complexity;

[0030] In summary, the present invention solves the technical pain points of traditional correction devices such as adjustment lag, easy damage to the belt, and inability to automatically reset. While ensuring efficient correction, it improves the safety, stability and versatility of the equipment. It is suitable for belt conveyor systems in heavy industrial fields such as mining, metallurgy, and ports. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for use in the embodiments or the description of the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0032] Figure 1 Schematic three-dimensional view of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0033] Figure 2 Schematic three-dimensional view of a side idler of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0034] Figure 3 Schematic half-section three-dimensional view of a side idler of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0035] Figure 4 Schematic three-dimensional view of a center idler of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0036] Figure 5 Schematic half-section three-dimensional view of a center idler of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0037] Figure 6 Schematic three-dimensional view of a center idler of an automatic reset deviation rectifying device provided by an embodiment of the present application after hiding the center idler roller body;

[0038] Figure 7 Schematic half-section three-dimensional view of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0039] Figure 8 Schematic three-dimensional view of a crossbeam of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0040] Figure 9 Schematic three-dimensional view of an automatic rotary buffer device of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0041] Figure 10 Schematic three-dimensional view of a buffer assembly in an automatic rotary buffer device of an automatic reset deviation rectifying device provided by an embodiment of the present application;

[0042] Figure 11 Schematic three-dimensional view of a roller frame of an automatic reset deviation rectifying device provided by an embodiment of the present application.

[0043] Among them, the reference numerals in the figures:

[0044] 1 - Fixed bottom plate; 2 - Height adjustment device; 3 - Cross beam; 31 - Steel pipe; 32 - Intermediate plate; 33 - Fixed seat; 34 - Central axis, 4 - Automatic rotation buffer device; 41 - Sleeve Ⅰ; 42 - Reinforcing plate Ⅰ; 43 - Outer pipe; 44 - Buffer assembly; 441 - Inner pipe; 442 - Inner pipe plug plate; 443 - Spring; 444 - Round steel; 45 - Connecting plate; 46 - Outer pipe plug plate; 5 - Roller frame; 51 - Sleeve Ⅱ; 52 - Reinforcing plate Ⅱ; 53 - Side plate; 54 - Tilt arm; 55 - Dial plate; 6 - Center idler; 61 - Center idler shaft; 611 - Rotating shaft; 62 - Center idler roller body; 621 - Center idler roller body bearing; 63 - Self - adjusting roller; 631 - Self - adjusting roller body; 6311 - Bush; 632 - Self - adjusting roller bearing; 633 - Washer; 7 - Side idler; 71 - Side idler shaft; 72 - Side idler roller body; 721 - Side roller body fixing plate Ⅰ; 722 - Side roller body fixing plate Ⅱ; 723 - Side roller body bushing Ⅰ; 724 - Side roller body bushing Ⅱ; 725 - Side roller body bearing Ⅰ; 726 - Side roller body bearing Ⅱ; 73 - Idler adjusting rod; 8 - Roller frame mounting bearing. Detailed implementation manners

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, the following further elaborates on this application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application 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 thus cannot be understood as a limitation to this application.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality" and "several" is two or more, unless otherwise specifically defined.

[0049] As Figure 1 and Figure 7 shown, the automatic reset deviation rectifying device includes a fixed bottom plate 1, a height adjusting device 2, a cross beam 3, an automatic rotary buffer device 4, a roller frame 5, a center idler 6 and side idlers 7.

[0050] The fixed bottom plate 1 is a plate-like structure with an "L"-shaped cross-section. The two fixed bottom plates 1 are respectively fixed on the foundation (embedded) or other fixed equipment, serving as the installation foundation of the automatic reset deviation rectifying device. The distance between the two fixed bottom plates 1 may vary with the distance between the foundation or other equipment to be fixed. Therefore, the automatic reset deviation rectifying device should be provided with relevant structures to adapt to the installation requirements of different distances between the fixed bottom plates 1.

[0051] The cross beam 3 includes a steel pipe 31, an intermediate plate 32, a fixed seat 33 and a central shaft 34. As Figure 8 shown, two circular steel pipes 31 are arranged in parallel. The two steel pipes 31 are fixedly connected through an intermediate plate 32 in the middle. The two intermediate plates 32 are respectively connected to the upper and lower parts (vertical position) of the steel pipe 31 and are arranged at the middle position (horizontal position) of the steel pipe 31. A central shaft 34 is fixedly arranged at the central position of the upper intermediate plate 32. The central shaft 34 is a stepped shaft structure, that is, the diameter of the upper part of the central shaft 34 is smaller than that of the lower part. A fixed seat 33 is also respectively arranged on both sides. The fixed seat 33 is fixedly connected to the upper parts of the two intermediate plates 32.

[0052] The automatic rotary buffer device 4 includes a buffer frame and a buffer assembly 44. As Figure 9 shown, the buffer frame is composed of a sleeve I 41 and a reinforcing plate I 42. The inside of the sleeve I 41 is in clearance fit with the lower part of the central shaft 34. Four reinforcing plates I 42 are welded on the outside of the sleeve I 41 to form an "X"-shaped frame structure centered on the sleeve I 41; at the end parts of the four reinforcing plates I 42 of the buffer frame, outer tubes 43 are respectively fixedly connected. A buffer assembly 44 is installed in the outer tube 43. As Figure 10 shown, the buffer assembly 44 includes an inner tube 441 and a spring 443. The inner tube 441 is inserted into the outer tube 43 in clearance fit. An outer tube plug plate 46 is arranged on the outside of the outer tube 43. An inner tube plug plate 442 is arranged on the inside of the inner tube 441. A spring 443 is installed between the outer tube plug plate 46 and the inner tube plug plate 442. A round steel 444 for guiding the spring 443 is fixedly arranged on the inner tube plug plate 442. There is a gap between the two inner tubes 441 on the same side; at the outer ends of the two outer tubes 43 on both sides, a connecting plate 45 is also fixedly connected; during installation, the sleeve I 41 is sleeved on the central shaft 34, and the connecting plate 45 is fixedly connected to the fixed seat 33 with bolts, thereby fixing the automatic rotary buffer device 4 on the cross beam 3.

[0053] The roller frame 5 includes a sleeve II 51, a reinforcing plate II 52, a side plate 53, an inclined arm 54 and a toggle plate 55. Figure 11 As shown, reinforcing plates II52 are welded to both sides of the outside of sleeve II 51, side plates 53 are welded to the ends of reinforcing plates II 52, inclined arms 54 with upper parts inclined outward are welded to the outer sides of the side plates 53, and a toggle plate 55 is welded to the bottom of the inclined arms 54; during installation, sleeve II 51 is rotatably connected to the upper part of the central shaft 34 through the roller frame mounting bearing, that is, the roller frame 5 can rotate along the central shaft 34, two central rollers 6 are installed in parallel on the two side plates 53, two side rollers 7 are installed on the inclined arms 54 on both sides, and the toggle plate 55 is arranged in the gap between the two inner tubes 441.

[0054] like Figure 4 , Figure 5 and Figure 6 As shown, the center roller 6 is composed of a center roller shaft 61 and a center roller body 62. Both ends of the center roller shaft 61 are provided with a square cross-section structure. A square groove matching the square cross-section is provided on the side plate 53. Both ends of the center roller shaft 61 are embedded in the square groove so that the center roller shaft 61 cannot rotate. A rotating shaft 611 is provided at the center of the center roller shaft 61. The center line of the rotating shaft 611 is in the vertical direction. The self-adjusting roller 63 can be rotatably installed on the center roller shaft 61 around the rotating shaft 611. Specifically, The self-adjusting roller 63 includes a self-adjusting roller body 631, a self-adjusting roller bearing 632 and a washer 633. A shaft sleeve 6311 is fixedly arranged at the upper and lower ends of the middle part of the self-adjusting roller body 631. The shaft sleeve 6311 is installed on the rotating shaft 611 through the self-adjusting roller bearing 632. A washer 633 is fixedly connected to the end of the rotating shaft 611 by bolts. The washer 633 is pressed on the inner ring of the self-adjusting roller bearing 632. The two ends of the center roller body 62 are installed on the self-adjusting roller body 631 through the center roller body bearing 621.

[0055] like Figure 2 and Figure 3 As shown, the side roller 7 includes a side roller shaft 71 and a side roller body 72, and a side roller sleeve Ⅰ723 and a side roller sleeve Ⅱ724 are fixedly provided at both ends of the side roller body 72 via a side roller fixing plate Ⅰ721 and a side roller fixing plate Ⅱ722 respectively, and the two ends of the side roller shaft 71 are installed in the side roller sleeve Ⅰ723 and the side roller sleeve Ⅱ724 via a side roller bearing Ⅰ725 and a side roller bearing Ⅱ726 respectively.

[0056] Example 1

[0057] The center roller 6 and the side rollers 7 are installed on the roller frame 5. The two side rollers 7 are symmetrically arranged on both sides of the center roller 6 along the center and tilted outward. The side rollers 7 are conical rollers with an outer roller diameter smaller than an inner roller diameter, that is, the side roller body 72 is a conical structure.

[0058] There are two center idlers 6, and the two center idlers 6 are installed on the idler frame 5 in parallel in the horizontal direction. The center of the side idler 7 is arranged on the symmetry plane of the two center idlers 6.

[0059] The side idler 7 includes a side idler shaft 71 and a side idler roller body 72. The side idler roller body 72 is rotatably installed on the side idler shaft 71, and both ends of the side idler shaft 71 are installed on the idler frame 5.

[0060] The center idler 6 includes a center idler shaft 61 and a center idler roller body 62. The center idler roller body 62 is rotatably installed on the center idler shaft 61, and both ends of the center idler shaft 61 are installed on the idler frame 5.

[0061] The idler frame 5 is installed on the cross beam 3, and both ends of the cross beam 3 are respectively connected to the two fixed bottom plates 1.

[0062] The working process of the automatic reset deviation rectifying device in this embodiment:

[0063] Belt running and initial positioning: When the belt runs, the center idler 6 serves as the main support point to remain horizontal. The outer roller diameters of the two conical side idlers 7 on both sides are smaller, and the inner ones are larger, forming an inward guiding force.

[0064] Dynamic deviation rectification: When the belt deviates, the conical structure of the side idler 7 generates a radial component force through contacting the belt edge, pushing the belt to move towards the center direction to achieve dynamic deviation rectification.

[0065] The working principle of the automatic reset deviation rectifying device in this embodiment:

[0066] Variable diameter guiding of the conical side idler: The outer roller diameter of the side idler 7 is smaller than the inner one. When the belt contacts the side idler, the outer friction force is greater, forming an inward forced guiding force to correct the belt deviation.

[0067] Cooperative support of the double center idlers: The two center idlers 6 are installed horizontally in parallel, dispersing the belt load and maintaining stability, avoiding the amplification of deviation caused by single-point support.

[0068] The technical effects of the automatic reset deviation rectifying device in this embodiment:

[0069] Dynamic deviation rectification ability: The variable diameter design of the conical side idler adjusts the belt position in real time, adapts to continuous deviation conditions, and has a fast deviation rectification response speed.

[0070] Prevention of detachment and improvement of stability: The side idler 7 is hinged at the lower end of the pin shaft 71 and fixed at the upper end by the idler adjusting rod 73 to avoid falling off due to vibration; the double center idlers provide rigid support to reduce the transmission of belt jitter.

[0071] Embodiment 2

[0072] Both ends of the cross beam 3 are connected to the fixed bottom plate 1 through the height adjustment device 2.

[0073] The height adjustment device 2 includes a height adjustment plate. The height adjustment plate and the fixed bottom plate 1 are corresponding "L"-shaped plates. Both ends of the cross beam 3 are fixedly connected to the vertical plates of the height adjustment plate. Matching bolt oblong holes and bolt round holes are respectively arranged on the vertical plates of the height adjustment plate and the fixed bottom plate 1. After adjusting the relative height of the height adjustment plate and the fixed bottom plate 1, bolts are sequentially passed through the bolt oblong holes and the bolt round holes and then tightened with nuts to tightly connect the height adjustment plate and the fixed bottom plate 1. The horizontal straight plates of the height adjustment plate and the fixed bottom plate 1 are above the vertical plates. A threaded hole is arranged on the horizontal straight plate of the height adjustment plate. After a bolt passes through the threaded hole, the end of the bolt is abutted against the top of the fixed bottom plate 1. A nut is screwed on the bolt, and the top of the nut is closely attached to the lower part of the horizontal straight plate of the height adjustment plate.

[0074] The working process of the automatic reset deviation rectification device of this embodiment:

[0075] Installation height adjustment: According to the height difference of the on-site foundation, the vertical plates of the height adjustment plate 2 and the fixed bottom plate 1 are initially aligned through the bolt oblong holes and the bolt round holes.

[0076] Fine adjustment and locking: After being initially fixed by bolts passing through the oblong holes and the round holes, rotate the top bolt (passing through the threaded hole of the horizontal straight plate of the height adjustment plate) to tightly press against the fixed bottom plate 1.

[0077] Longitudinal stability guarantee: The combined action of the tightened bolt and the nut prevents the cross beam 3 from generating longitudinal displacement due to vibration or load change during operation.

[0078] The working principle of the automatic reset deviation rectification device of this embodiment:

[0079] Modular height adjustment: The combination of the "L"-shaped height adjustment plate and the fixed bottom plate realizes two-dimensional fine adjustment of the height of the cross beam 3 through the cooperation of the oblong hole - round hole.

[0080] Dual locking mechanism: Bolt fastening provides the main shear resistance, and the top bolt generates additional pressure by tightly pressing against the fixed bottom plate 1.

[0081] The technical effects of the automatic reset deviation rectification device of this embodiment

[0082] Adapt to complex installation environments: Can quickly adjust the overall height of the device and be compatible with different foundation conditions (such as potholes or steps).

[0083] Improve the running reliability: Significantly reduce the longitudinal sway of the cross beam 3 through the tightened bolt and extend the service life of the equipment.

[0084] Embodiment 3

[0085] The distance between the two fixed bottom plates 1 is adjustable, and both ends of the cross beam 3 are installed on the two fixed bottom plates 1 through telescopic devices.

[0086] The telescopic device includes telescopic tubes fixedly installed on the vertical plates of the height adjustment plates. The telescopic tubes on both sides of the height adjustment plates are respectively inserted into both ends of the cross beam 3, and telescopic tube fastening structures are arranged at both ends of the cross beam 3.

[0087] The telescopic tube fastening structure includes threaded holes arranged at both ends of the cross beam 3. Set screws are installed in the threaded holes. After the telescopic length of the telescopic tube in the cross beam 3 is adjusted, the end of the set screw is abutted against the outer circumference of the telescopic tube to fixedly connect the cross beam 3 and the telescopic tube.

[0088] The working process of the automatic reset deviation rectifying device of this embodiment:

[0089] Installation of the telescopic device: Insert the telescopic tubes into both ends of the cross beam 3, and rotate the set screws 9 to tighten against the outer circumference of the telescopic tubes to achieve the telescopic adjustment of the length of the cross beam 3.

[0090] On-site dimension adaptation: Adjust the insertion depth of the telescopic tubes according to the distance between the fixed bottom plates 1, and ensure that both ends of the cross beam 3 are fully fitted with the telescopic tubes and then tightened to eliminate the gap.

[0091] The working principle of the automatic reset deviation rectifying device of this embodiment

[0092] Sliding rail type telescopic structure: The telescopic tubes and the cross beam 3 adopt a clearance fit, allowing axial sliding; the set screws 9 are tightened against the telescopic tubes through the threaded holes to provide tensile and shear resistance.

[0093] Stepless adjustment ability: The length of the telescopic tubes can be continuously adjusted according to actual needs, breaking through the size limitations of traditional fixed brackets.

[0094] The technical effects of the automatic reset deviation rectifying device of this embodiment:

[0095] Flexibly adapt to different sites: There is no need for customized production. The distance between the fixed bottom plates can be quickly matched through the telescopic device, reducing the installation cost.

[0096] Convenient for maintenance and expansion: When the equipment is upgraded in the future or the foundation changes, only the length of the telescopic tubes needs to be adjusted to redeploy the device.

[0097] Embodiment 4

[0098] The inclination angle of the side idler 7 can be adjusted within the range of 0 to 30°.

[0099] The lower end of the side idler shaft 71 is hinged to the idler frame 5, and the upper end of the side idler shaft 71 is connected to the idler frame 5 through the idler adjusting rod 73; one end of the idler adjusting rod 73 is hinged to the upper end of the side idler shaft 71, and an external thread is provided on the rod body at the other end of the idler adjusting rod 73. A long circular hole through which the idler adjusting rod 73 can pass is provided on the idler frame 5. Two nuts are installed on the idler adjusting rod 73, and the two nuts are respectively arranged on both sides of the idler frame 5. By adjusting the positions of the two nuts, the length of the idler adjusting rod 73 inserted into the idler frame 5 can be adjusted, and after the adjustment is completed, the idler adjusting rod 73 is fixedly connected to the idler frame 5.

[0100] The working process of the automatic reset deviation rectifying device of this embodiment:

[0101] Angle adjustment preparation: Loosen the nuts at both ends of the idler adjusting rod 73, and pull out the upper end of the idler shaft 71 from the long circular hole of the idler frame 5 by a certain length.

[0102] Inclination angle setting: Rotate the idler adjusting rod 73 to the target angle, re-insert it into the long circular hole and lock it bidirectionally through the nuts.

[0103] Rigid fixation: After the adjustment is completed, the hinge point at the lower end of the idler shaft 71 and the adjusting rod at the upper end form a stable inclination angle, and the side idler 7 enters the working state.

[0104] The working principle of the automatic reset deviation rectifying device of this embodiment:

[0105] Lever-type angle adjustment: The idler adjusting rod 73 serves as a lever fulcrum. By adjusting its insertion depth, the inclination angle of the side idler shaft 71 is changed, and thus the guiding slope of the side idler 7 is controlled.

[0106] Stepless tuning ability: The long circular hole allows the idler adjusting rod 73 to be finely adjusted within a certain range. Combined with the bidirectional locking of the nuts, fine control of the inclination angle is achieved.

[0107] The technical effects of the automatic reset deviation rectifying device of this embodiment:

[0108] Personalized tuning: According to the belt material, speed and deviation degree, the inclination angle of the side idler 7 can be accurately set to optimize the deviation rectifying efficiency.

[0109] Maintenance convenience: There is no need to disassemble the side idler, and the angle adjustment can be completed through the adjusting rod, reducing the downtime.

[0110] Embodiment 5

[0111] The center idler roller body 62 is installed on the center idler shaft 61 through a self-adjusting roller 63. A rotating shaft 611 is provided at the center of the center idler shaft 61, and the center line of the rotating shaft 611 is in the vertical direction. The self-adjusting roller 63 includes a self-adjusting roller body 631. The center idler roller body 62 is rotatably sleeved outside the self-adjusting roller body 631, and the center of the self-adjusting roller body 631 is rotatably installed on the center idler shaft 61 along the rotating shaft 611.

[0112] Both ends of the center idler roller body 62 are installed on the self-adjusting roller body 631 through center idler roller body bearings 621.

[0113] Shaft sleeves 6311 are respectively fixedly provided at the upper and lower ends in the middle of the self-adjusting roller body 631. Both ends of the rotating shaft 611 are installed in the shaft sleeves 6311 through self-adjusting roller bearings 632.

[0114] Both ends of the rotating shaft 611 are fixedly connected with washers 633 through bolts, and the washers 633 are attached to the inner ring of the self-adjusting roller bearings 632.

[0115] The roller frame 5 is installed on the cross beam 3 through an automatic rotary buffer device 4;

[0116] The automatic rotary buffer device 4 includes a buffer frame and a buffer assembly 44. The buffer frame is fixedly installed on the cross beam 3, and buffer assemblies 44 are installed at both ends of the buffer frame. The buffer assembly 44 includes two concentric outer tubes 43. An inner tube 441 is installed inside the outer tube 43. An outer tube plug 46 is provided on the outside of the outer tube 43. An inner tube plug 442 is provided on the inside of the inner tube 441. A spring 443 is installed between the outer tube plug 46 and the inner tube plug 442. There is a gap between the two inner tubes 441. Dialing plates 55 are provided on both sides of the roller frame 5, and the dialing plates 55 are installed in the gap between the two inner tubes 441. The roller frame 5 is rotatably installed on the buffer frame along the center;

[0117] In the initial state, when the roller frame 5 does not shift, the center of the dialing plate 55 is on the symmetry plane of the two inner tubes 441. When the roller frame 5 shifts, the roller frame 5 rotates relative to the buffer frame. The dialing plate 55 on the roller frame 5 rotates with the roller frame 5. The dialing plate 55 contacts one of the inner tubes 441 and compresses the spring 443. The spring 443 plays a buffering role, and the spring 443 gives a reaction force to the dialing plate 55 to make the dialing plate 55 automatically return to the initial state.

[0118] The working process of the automatic reset deviation rectifying device in this embodiment:

[0119] Self-adjusting roller compensates stress: When lateral stress is generated during the belt operation, the center idler roller body 62 rotates around the self-adjusting roller bearing 632 to offset the deviation caused by the stress.

[0120] Automatic rotation buffer reset: When the offset exceeds the threshold, the roller frame 5 drives the toggle plate 55 to deflect, compressing the spring 443; when the spring releases energy, it pushes the toggle plate 55 to rotate, driving the roller frame 5 and the idler set to reset.

[0121] Working principle of the automatic reset deviation rectification device of this embodiment

[0122] Adaptive support: The self-adjusting roller 63 allows the center idler roller body 62 to freely rotate through the cooperation of the rotating shaft 611 and the bearing 632, and compensates for the problem of uneven belt stress distribution in real time.

[0123] Energy storage reset mechanism: The spring 443 stores mechanical energy during the compression stage, and converts the energy into kinetic energy during the reset stage, driving the toggle plate 5 and the roller frame 5 to rotate back to the initial position.

[0124] Technical effects of the automatic reset deviation rectification device of this embodiment:

[0125] High-precision deviation rectification: The self-adjusting roller eliminates local stress concentration and avoids asymmetric offset of the idler set caused by uneven force.

[0126] Intelligent buffering and reset: Combining spring energy storage and mechanical linkage to achieve fast and lossless automatic reset.

[0127] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic resetting deviation correction device, characterized in that: The invention comprises a roller frame (5), a central roller (6) and side rollers (7), wherein the central roller (6) and the side rollers (7) are mounted on the roller frame (5), and two side rollers (7) are symmetrically arranged along the center of the central roller (6) and tilted outwardly on both sides of the central roller (6), and the side rollers (7) are tapered rollers whose outer roller diameter is smaller than the inner roller diameter.

2. An automatic resetting deviation correction device as claimed in claim 1, characterized in that: There are two center rollers (6), which are installed in parallel and side by side on the roller frame (5) in the horizontal direction, and the center of the side roller (7) is arranged on the symmetry plane of the two center rollers (6).

3. An automatic resetting deviation correction device as claimed in claim 1 or 2, characterized in that: The side roller (7) comprises a side roller shaft (71) and a side roller body (72); the side roller body (72) is rotatably mounted on the side roller shaft (71); and both ends of the side roller shaft (71) are mounted on a roller frame (5).

4. An automatic resetting deviation correction device as claimed in claim 1 or 2, characterized in that: The roller frame (5) is installed on the cross beam (3), and the two ends of the cross beam (3) are respectively connected to two fixed bottom plates (1).

5. The automatic resetting deviation correction device according to claim 4, characterized in that: Both ends of the crossbeam (3) are connected to the fixed base plate (1) via a height adjustment device (2).

6. An automatic resetting deviation correction device as claimed in claim 5, characterized in that: The height adjustment device (2) comprises a height adjustment plate, wherein the height adjustment plate and the fixed base plate (1) are corresponding "L"-shaped plates, and the two ends of the cross beam (3) are respectively fixedly connected to the vertical plate of the height adjustment plate, and the vertical plates of the height adjustment plate and the fixed base plate (1) are respectively provided with matching oblong bolt holes and circular bolt holes, and after the relative heights of the height adjustment plate and the fixed base plate (1) are adjusted, bolts are sequentially passed through the oblong bolt holes and the circular bolt holes, and then fastened with nuts, so that the height adjustment plate and the fixed base plate (1) are fastened and connected, and the horizontal and vertical plates of the height adjustment plate and the fixed base plate (1) are above the vertical plates, and threaded holes are provided on the horizontal and vertical plates of the height adjustment plate, and after the bolts are passed through the threaded holes, the ends of the bolts are pressed against the top of the fixed base plate (1), and nuts are screwed on the bolts, and the tops of the nuts are tightly attached to the bottoms of the horizontal and vertical plates of the height adjustment plate.

7. An automatic resetting deviation correction device as claimed in claim 6, characterized in that: The distance between the two fixed bottom plates (1) is adjustable, and the two ends of the crossbeam (3) are mounted on the two fixed bottom plates (1) via telescopic devices.

8. An automatic resetting deviation correction device as claimed in claim 7, characterized in that: The telescopic device comprises a telescopic tube fixedly mounted on a vertical plate of the height adjustment plate, the telescopic tubes on the height adjustment plates on both sides are respectively inserted into the two ends of the crossbeam (3), and telescopic tube fastening structures are provided at both ends of the crossbeam (3).

9. An automatic resetting deviation correction device as claimed in claim 8, characterized in that: The telescopic tube fixing structure comprises threaded holes arranged at both ends of the cross beam (3), and fixing screws are installed in the threaded holes. When the telescopic length of the telescopic tube in the cross beam (3) is adjusted, the end of the fixing screw is pressed against the outer periphery of the telescopic tube to fix the cross beam (3) and the telescopic tube.

10. An automatic resetting deviation correction device as claimed in claim 1 or 2, characterized in that: The central roller (6) comprises a central roller shaft (61) and a central roller body (62). The central roller body (62) is rotatably mounted on the central roller shaft (61). Both ends of the central roller shaft (61) are mounted on a roller frame (5).

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