Efficient heavy-load cross-over transport trolley and working method thereof

Abstract

The application provides a high-efficiency heavy-load over-crossing transport trolley and a working method thereof, and relates to the technical field of metallurgical equipment maintenance. The device comprises a driving wheel device, a tensioning wheel device, a roller chain, a load-bearing support device, a lifting traction trolley and a position detection system. The direction close to the offline maintenance workshop is right, and the direction close to the online rolling workshop is left. The roller chain is arranged in the middle of the load-bearing support device. The load-bearing support device comprises a first steel rail and a second steel rail, and rolling mills are arranged on the first steel rail and the second steel rail. The load-bearing support device comprises a left trolley track and a right trolley track, and lifting traction trolleys are arranged on the left trolley track and the right trolley track. The position detection system is fixed to the outer side of the right trolley track. In the application, the rolling mills are cooperated with the lifting traction trolley and the position detection system through the bottom wheels of the rolling mills, so that the over-crossing transport function is realized. Compared with the traditional technology, the application avoids the risk of wheel fragmentation, and improves the transport efficiency and stability of heavy-load equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgical equipment maintenance, in particular, relates to an efficient heavy-load cross-span transport trolley and a working method thereof. BACKGROUND

[0002] With the continuous improvement of large-scale and automation of metallurgical equipment, the running state, functional characteristics and maintenance efficiency of the equipment are crucial to the workshop productivity and product quality. Especially during the equipment downtime maintenance, the products, equipment and other objects (taking a rolling mill as an example) need to be transported from the online rolling workshop to the offline maintenance workshop, and then the rolling mill is disassembled and repaired in the offline area. After the rolling mill is repaired and updated, it will be transported from the offline maintenance workshop to the online rolling workshop for online rolling of subsequent products. Therefore, the transport efficiency and stability of the rolling mill during the switching between the two workshops are extremely critical to the workshop productivity and product quality.

[0003] Generally, when the rolling mill is transported back and forth between the offline maintenance and online rolling workshops, it needs to pass through obstacles such as factory column, trench cable, etc., and the transport situation is very complex. In this case, the two workshops are not in the same span, and the factory crane cannot realize cross-span transport, so a cross-span transport trolley is needed to realize the transfer function of the rolling mill between different spans in the factory.

[0004] In the traditional technology, the wheels of the cross-span transport trolley are above the track on the top of the bottom frame, and the rolling mill is placed above the cross-span transport trolley during transport. The rolling mill and the cross-span transport trolley are dragged by the wheels, and the whole transport from the online rolling workshop to the offline maintenance workshop is realized. The wheels bear the double load of the heavy rolling mill and the cross-span transport trolley, which has the following disadvantages: 1. The rolling mill is placed above the cross-span transport trolley, and the rolling mill is heavy equipment, whose entire weight load is borne by the cross-span transport trolley body and the bottom wheels, which reduces the service life of the cross-span transport trolley. Once the wheels are broken, the rolling mill transport will be stalled, affecting the transport efficiency and the safety of the rolling mill equipment. 2. The rolling mill is placed above the cross-span transport trolley, and its center of gravity is relatively high. In the transport process, if emergency braking occurs, the rolling mill will tip over due to inertia, which poses a safety hazard to the transport efficiency and stability. SUMMARY

[0005] In view of the technical problems of the existing transport equipment, such as high load bearing and poor transport stability, an efficient heavy-load cross-span transport trolley and a working method thereof are provided. The rolling mill is directly placed above the steel rail by the bottom wheels, and the cross-span transport is completed by the lifting traction trolley. Compared with the traditional technology, the center of gravity of the equipment is reduced, which avoids the safety hazards such as tipping over due to inertia during transport, and improves the safety performance of the equipment during transport.

[0006] The technical means adopted by the present application are as follows:

[0007] A high-efficiency heavy-load over-crossing transport trolley, comprising a driving wheel device, a tensioning wheel device, a roller chain, a bearing support device, a lifting traction trolley and a position detection system;

[0008] The direction close to the offline maintenance workshop is right, and the direction close to the online rolling workshop is left;

[0009] The driving wheel device is arranged on the right side of the bearing support device, the driving wheel device comprises a transmission sprocket and a first speed reducer motor, the first speed reducer motor indirectly drives the transmission sprocket to rotate, the outer edge of the transmission sprocket is engaged with the right end of the roller chain to form chain transmission, and the side surface of the driving wheel device is connected with the bearing support device;

[0010] The tensioning wheel device is arranged on the left side of the bearing support device, the tensioning wheel device comprises a driven sprocket and a hydraulic cylinder assembly, the outer edge of the driven sprocket is engaged with the left end of the roller chain to form chain transmission, and the side surface of the tensioning wheel device is connected with the bearing support device;

[0011] The roller chain is arranged in the middle part of the bearing support device;

[0012] The bearing support device comprises a first steel rail and a second steel rail, and rolling mills are arranged on the first steel rail and the second steel rail; the bearing support device comprises a left trolley track and a right trolley track, and lifting traction trolleys are arranged on the left trolley track and the right trolley track; and the position detection system is fixed outside the right trolley track.

[0013] Further, the driving wheel device further comprises a first base, the bottom of the first base is anchored on the foundation by bolts, a first H-shaped steel is welded below the first base, the first H-shaped steel is poured into the foundation by cement, a first reduction motor is fixed on the upper surface right side of the first base through a first fastening assembly, a protective cover is welded on the outer side of the first reduction motor, the left side output end of the first reduction motor is connected with a first shaft, the left side of the first shaft is connected with a first shaft through a first key fastening, the first shaft is sequentially connected with a first bearing seat, a transmission sprocket and a second bearing seat from right to left, the first bearing seat and the second bearing seat are fixed on the side surface of the box body of the first base through a second fastening assembly, first stop blocks are arranged on both sides of the bottom plate of the first bearing seat and the second bearing seat, and the transmission sprocket is arranged between the first bearing seat and the second bearing seat; first upper angle steels and first lower angle steels are arranged on the rear end surface of the box body of the first base away from the first bearing seat and the second bearing seat; the first upper angle steels are connected with the third upper angle steels in the load bearing and supporting device through chain upper brackets and are fixed through a tenth fastening assembly; the first lower angle steels are connected with the third lower angle steels in the load bearing and supporting device through chain lower brackets and are fixed through the tenth fastening assembly.

[0014] Further, the tensioning wheel device further comprises a second base, the bottom of the second base is anchored on the foundation by bolts, a second H-shaped steel is welded below the second base, the second H-shaped steel is poured into the foundation by cement, a hydraulic cylinder assembly is placed on the upper surface right side of the second base, the hydraulic cylinder assembly is fixed on a hydraulic cylinder sliding plate through a fifth fastening assembly, a third key is arranged between the hydraulic cylinder assembly and the hydraulic cylinder sliding plate, the hydraulic cylinder sliding plate is fixed on a base sliding plate through a fourth fastening assembly, and the hydraulic cylinder sliding plate can slide left and right above the base sliding plate; four groups of long holes are arranged on the base sliding plate, the right side surface of the base sliding plate is connected with a base vertical plate, the lower surface of the base vertical plate is fixed on the second base, a first adjusting bolt is screwed into a threaded hole on the right side of the hydraulic cylinder sliding plate after penetrating a threaded hole in the upper portion of the base vertical plate, and a first adjusting nut is arranged on the first adjusting bolt.

[0015] Further, the left output end of the hydraulic cylinder assembly is connected with the tail of the slide through a first pin shaft, the end of the first pin shaft is provided with a first baffle and is fastened through a sixth fastening assembly, the shaft hole of the head of the slide is penetrated by a second shaft, the two sides of the second shaft are respectively provided with a third bearing seat and a fourth bearing seat, a driven sprocket is installed between the third bearing seat and the fourth bearing seat, the inner diameter of the driven sprocket and the second shaft are fastened through a second key, the third bearing seat and the fourth bearing seat are respectively fastened on the head steel plate of the slide through a third fastening assembly, a first sliding guide rail is welded on the upper part of the front side rib plate of the box body of the second base, the left side of the first switch support is fastened on the first sliding guide rail through a seventh fastening assembly, two groups of first proximity switches are installed on the right side of the first switch support, a first sensing plate is arranged below the first proximity switches, the left side of the first sensing plate is fastened on the first switch bottom plate through an eighth fastening assembly, and the first switch bottom plate is fastened on the side vertical plate of the slide through the eighth fastening assembly; the rear end surface of the box body of the second base is welded with a second upper angle steel and a second lower angle steel; the second upper angle steel and the third upper angle steel in the load bearing and supporting device are connected through an upper chain bracket and are fixed through a tenth fastening assembly; the second lower angle steel and the third lower angle steel in the load bearing and supporting device are connected through a lower chain bracket and are fixed through the tenth fastening assembly.

[0016] Further, the load bearing and supporting device further comprises a first support frame at the right end and a second support frame at the left end, four groups of support bases are arranged between the first support frame and the second support frame, a third upper angle steel and a third lower angle steel are arranged on the left and right sides of each support base, a plurality of rail bases are arranged on the front and rear sides of the support base, a first rail is arranged on the front side of the support base, and a second rail is arranged on the rear side of the support base, the two ends of the first rail and the second rail are arranged on the first support frame and the second support frame, a plurality of rail pressing plates are arranged on the upper left and right sides of the first rail and the second rail, the rail pressing plates are fixed on the upper parts of the first support frame, the second support frame and the rail base through a ninth fastening assembly, right trolley tracks and left trolley tracks are arranged on the upper parts of the support bases respectively, and a gasket group and an eleventh fastening assembly are arranged between the left trolley tracks, the right trolley tracks, the upper parts of the box bodies of the first base and the second base and the support bases.

[0017] Further, a positioning plate is arranged at the right end of the first support frame, the first rail and the second rail are placed in the grooves on the two sides of the positioning plate; the driving wheel device, the support bases, the two groups of support bases and the tensioning wheel device are connected through the upper chain bracket and the lower chain bracket and are fixed through the tenth fastening assembly; the plurality of groups of upper angle steels are connected through the upper chain bracket; the plurality of groups of lower angle steels are connected through the lower chain bracket.

[0018] Further, the bottom of the rolling mill is provided with a plurality of sets of walking wheels, which are used to make the rolling mill roll and travel above the first and second rails.

[0019] Further, the lifting traction trolley further comprises a lifting bracket, the top of the lifting bracket is provided with a first bracket stopper and a second bracket stopper, the bottom of the lifting bracket is provided with a fixed frame, the left side of the lifting bracket is connected with a left swing arm through a second pin shaft, the right side of the lifting bracket is connected with an upper connecting rod through a second pin shaft, and the lower part of the upper connecting rod and the fixed frame are connected with a right swing arm through a second pin shaft; the fixed frame and the left swing arm or the right swing arm are connected through a third pin shaft, the third pin shaft passes through the fixed frame and the left swing arm or the right swing arm in sequence; the outer side of the third pin shaft is installed with a second shaft sleeve, and each end of the third pin shaft is provided with a set of wheels; a bearing is installed between the inner hole of the wheel and the shaft head of the third pin shaft, a set of first distance rings are arranged at the shaft shoulder of the inner hole of the fixed frame; the outer side of the bearing is installed with a gland, and the bearing is fixed by a thirteenth fastening assembly; the left end of the third pin shaft is provided with a second oil cup; the wheels are located in the semi-closed contour formed by the left trolley track and the right trolley track, and serve as the walking channel thereof; the left swing arm or the right swing arm and the lower connecting rod are connected through a second pin shaft, the second pin shaft passes through the inner holes of the left swing arm or the right swing arm and the lower connecting rod in sequence; the outer side of the second pin shaft is installed with a first shaft sleeve, the left end of the second pin shaft is provided with a second baffle and is positioned by a twelfth fastening assembly; the right end of the second pin shaft is provided with a first oil cup; the upper side of the lower connecting rod is provided with a spring, the left side of the spring is connected with the left swing arm through a fourth pin shaft, and the fourth pin shaft passes through the inner holes of the left swing arm and a second distance ring in sequence; the right side of the spring is connected with a connecting plate through a fifth pin shaft, the fifth pin shaft passes through the inner hole of the connecting plate, and a set of baffle rings are installed on the left and right sides of the fourth pin shaft and the fifth pin shaft; the right side of the connecting plate is threadedly connected with a stud bolt; the right side of the stud bolt passes through the inner hole of the right side vertical plate of the fixed frame, the spring is in a natural straight state by rotating the stud bolt; a fixed block is arranged below the right side vertical plate of the fixed frame and is fixed by a fourteenth fastening assembly; the right side of the second connecting assembly and the left side of the first connecting assembly are respectively connected with a roller chain.

[0020] Further, the position detection system further comprises a guide rail, the guide rail is welded on the outer side of the right trolley track, and the lower side of the switch support frame is fixed on the guide rail through a guide rail fastening assembly; two sets of proximity switches are installed on the upper side of the switch support frame; a switch sensing plate is arranged below the proximity switches, the left side of the switch sensing plate is fixed on a sensing plate bottom plate through a sensing plate fastening assembly, and the sensing plate bottom plate is installed on the front side vertical plate of the fixed frame through the sensing plate fastening assembly.

[0021] The application also provides a working method of the high-efficiency heavy-load cross-transport trolley, which is realized based on any one of the high-efficiency heavy-load cross-transport trolley, and the working method comprises the working method of transporting the rolling mill from the online area to the offline area and the working method of transporting the rolling mill from the offline area to the online area, wherein the Y1 point is the lifting point of the lifting traction trolley, and the Y2 point is the landing point of the lifting traction trolley.

[0022] The working method of transporting the rolling mill from the online area to the offline area, the rolling mill starts from the point O1 and is transported to the right, and finally reaches the O2 point in the offline area, and comprises the following steps:

[0023] S1, confirming that the rolling mill has stopped working, the universal connecting shaft, connecting pipeline and power cable and other connecting parts related to the rolling mill have been disassembled, the lifting bracket is in the lowest position state, and the rolling mill is ready for the cross-transportation before the rolling mill is at the O1 point;

[0024] S2, starting the hydraulic cylinder assembly, gradually retracting the piston rod, and dragging the driven sprocket to move to the left through the sliding seat; since the roller chain is in a tensioned state, the total length is fixed, and a tensile force is formed between the driven sprocket and the transmission sprocket; the driven sprocket and the transmission sprocket pull the roller chain to the left, the left part of the roller chain pulls the first connecting assembly and the lower link to move to the left, thereby realizing the clockwise rotation of the left swing arm and the right swing arm around the third pin shaft, and completing the lifting of the lifting bracket; at this time, the spring is forced to stretch; when the piston rod of the hydraulic cylinder assembly reaches the designated point Y1, the bottom stopper below the rolling mill completely enters the middle groove between the first bracket stopper and the second bracket stopper, and the piston rod of the hydraulic cylinder assembly stops moving;

[0025] S3, transporting the rolling mill from the O1 point to the O2 point, starting the first speed reducer, transmitting power to the first shaft through the first coupling, dragging the lifting traction trolley to move to the right together with the transmission sprocket and the roller chain after meshing, and the driven sprocket matches the running rhythm of the roller chain to rotate; the wheels on the left and right sides of the left swing arm and the right swing arm serve as the load-bearing components of the lifting traction trolley and pass through the semi-closed contour formed by the left trolley track and the right trolley track; the walking wheels are arranged at the bottom of the rolling mill, the walking wheels serve as the load-bearing components of the heavy equipment rolling mill and can roll forward above the first steel rail and the second steel rail; the rolling mill cooperates with the lifting traction trolley through the walking wheels, starts from the O1 point, and stably reaches the O2 point after running the L stroke;

[0026] S4, start the hydraulic cylinder assembly, the piston rod gradually lengthens, the slide pushes the driven sprocket to move right, the tension force between the driven sprocket and the transmission sprocket is eliminated, the tension force borne by the spring also disappears, the spring reversely retracts, drives the left swing arm and the right swing arm to rotate counterclockwise around the third pin shaft, and the lowering action of the lifting bracket is completed; when the piston rod of the hydraulic cylinder assembly reaches the standard point Y2, the lifting bracket is lowered to the lowest point, the bottom surface stopper under the rolling mill completely leaves the middle groove between the first bracket stopper and the second bracket stopper, and the piston rod of the hydraulic cylinder assembly stops moving;

[0027] S5, the rolling mill is offline for maintenance, replacement of components and the like;

[0028] The working method for transporting the rolling mill from the offline area to the online area, the rolling mill starts from the point O2 and transports leftward to finally reach the point O1 in the online area, including the following steps:

[0029] T1, confirm that the rolling mill has been adjusted and maintained, and the lifting bracket is in the lowest position state, and the rolling mill at the point O2 has completed the preparation work before the cross transport;

[0030] T2, start the hydraulic cylinder assembly, the piston rod gradually retracts, the slide drags the driven sprocket to move left, because the roller chain is in a tension state, its total length is fixed, a tension force is formed between the driven sprocket and the transmission sprocket, the driven sprocket and the transmission sprocket pull the roller chain to both sides, the left part of the roller chain pulls the first connecting assembly and the lower connecting rod to move left, thereby realizing the clockwise rotation of the left swing arm and the right swing arm around the third pin shaft, completing the lifting action of the lifting bracket; at this time, the spring is forced to stretch; when the piston rod of the hydraulic cylinder assembly reaches the standard point Y1, the bottom surface stopper under the rolling mill completely enters the middle groove between the first bracket stopper and the second bracket stopper, and the piston rod of the hydraulic cylinder assembly stops moving;

[0031] T3, start the first speed reducer, transmit power to the first shaft through the first coupling, drag the lifting traction trolley leftward with the transmission sprocket and the roller chain after meshing, and the driven sprocket matches the running rhythm of the roller chain to rotate; the wheels on both sides of the left swing arm and the right swing arm serve as the load-bearing components of the lifting traction trolley and pass through the semi-closed contour formed by the left trolley track and the right trolley track; the bottom of the rolling mill is provided with a walking wheel, which serves as the load-bearing component of the heavy equipment rolling mill and can roll forward above the first steel rail and the second steel rail; the rolling mill cooperates with the lifting traction trolley through the walking wheel, starts from the point O2, and stably reaches the point O1 after running an L stroke;

[0032] T4, start the hydraulic cylinder assembly, and gradually extend the piston rod, push the driven sprocket to move right through the slide; before that, the tensile force between the driven sprocket and the transmission sprocket is eliminated, and the tensile force borne by the spring also disappears, the spring reverses and retracts, drives the left swing arm and the right swing arm to rotate counterclockwise around the third pin shaft, and finally completes the landing action of the lifting bracket. When the piston rod of the hydraulic cylinder assembly reaches the designated point Y2, the lifting bracket is lowered to the lowest point, and the bottom stopper under the rolling mill completely escapes from the intermediate groove between the first bracket stopper and the second bracket stopper, and the piston rod of the hydraulic cylinder assembly stops moving;

[0033] T5, the rolling mill performs subsequent online positioning and opening of rolling.

[0034] Compared with the prior art, the present application has the following advantages:

[0035] In the present application, the bottom wheels of the rolling mill are rolled forward to complete the over-cross transportation above the rail through the cooperation of the lifting traction trolley and the position detection system, compared with the traditional technology, the risk of wheel fragmentation is avoided, and the transportation efficiency and stability of the heavy load equipment are improved.

[0036] In the present application, the rolling mill is directly placed above the rail through the bottom wheels, compared with the traditional technology, the center of gravity of the equipment is lowered, the safety hazards such as tilting due to inertia during transportation are avoided, and the safety performance of the equipment during transportation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0038] Figure 1 is a process layout schematic diagram of the over-cross transportation trolley of the present application;

[0039] Figure 2 is a process layout diagram of Figure 1 ;

[0040] Figure 3 is a M-M view of Figure 1 ;

[0041] Figure 4 is a right view of the over-cross transportation trolley in Figure 1 ;

[0042] Figure 5 is a G enlarged view of Figure 3 ;

[0043] Figure 6 is a left view of Figure 5 ;

[0044] Figure 7 is a front view of the drive wheel arrangement;

[0045] Figure 8 is a top view of Figure 7 ;

[0046] Figure 9 is a left view of Figure 7 ;

[0047] Figure 10 is a front view of the tensioning wheel arrangement;

[0048] Figure 11 is a top view of Figure 10 ;

[0049] Figure 12 is a K-K view of Figure 10 ;

[0050] Figure 13 is a W-W rotated view of Figure 10 ;

[0051] Figure 14 is a top view of the load support arrangement;

[0052] Figure 15 is an N-N view of Figure 14 ;

[0053] Figure 16 is a right view of Figure 15 ;

[0054] Figure 17 is a P-P view of Figure 15 ;

[0055] Figure 18 is a schematic view of the lifting stroke of the lifting trolley;

[0056] Figure 19 is a schematic view of the raised position of Figure 18 ;

[0057] Figure 20 is a schematic view of the lowered position of Figure 18 ;

[0058] Figure 21 is a F-F view of Figure 18 ;

[0059] Figure 22 is an E-E view of Figure 18 ;

[0060] Figure 23 isFigure 22 X enlarged view of

[0061] Figure 24 Figure 18 T enlarged view of

[0062] Figure 25 Figure 19 J-J view of

[0063] Figure 26 Figure 19 R-R view of

[0064] Figure 27

[0065] Figure 28

[0066] Figure 29 S1 enlarged view of Figure 28

[0067] Figure 30

[0068] Figure 31 S2 enlarged view of Figure 30

[0069] Figure 32

[0070] Figure 33 S3 enlarged view of Figure 32

[0071] Figure 34

[0072] Figure 35 S4 enlarged view of Figure 34

[0073] Figure 36

[0074] Figure 37

[0075] Figure 38 S1' enlarged view of Figure 37

[0076] Figure 39 ​​​​​​​​​​​​​​​is the second step schematic diagram of the transportation process from O2 point to O1 point;

[0077] Figure 40 is the S2' amplification schematic diagram of Figure 39

[0078] Figure 41 is the third step schematic diagram of the transportation process from O2 point to O1 point;

[0079] Figure 42 is the S3' amplification schematic diagram of Figure 41

[0080] Figure 43 is the fourth step schematic diagram of the transportation process from O2 point to O1 point;

[0081] Figure 44 is the S4' amplification schematic diagram of Figure 43 ＇

[0082] In the figure: O1: the online workshop point of the rolling mill; O2: the offline workshop point of the rolling mill; Y1: the lifting point of the lifting traction trolley; Y2: the landing point of the lifting traction trolley;

[0083] 1, driving wheel device; 2, tensioning wheel device; 3, roller chain; 4, bearing support device; 5, lifting traction trolley; 6, position detection system;

[0084] 101, first base; 102, first speed reduction motor; 103, first fastening assembly; 104, first coupling; 105, first shaft; 106, first key; 107, first bearing seat; 108, second fastening assembly; 109, second bearing seat; 110, first stop block; 111, transmission sprocket; 112, protective cover; 113, first upper angle steel; 114, first lower angle steel; 115, first H-shaped steel;

[0085] ​​​​201, second base; 202, hydraulic cylinder assembly; 203, sliding base; 204, third bearing seat; 205, fourth bearing seat; 206, driven sprocket; 207, second shaft; 208, second key; 209, third fastening assembly; 210, third key; 211, hydraulic cylinder sliding plate; 212, fourth fastening assembly; 213, first adjusting bolt; 214, first adjusting nut; 215, base sliding plate; 216, fifth fastening assembly; 217, second H-shaped steel; 218, first pin shaft; 219, first baffle; 220, sixth fastening assembly; 221, first sliding guide rail; 222, seventh fastening assembly; 223, first switch support; 224, first proximity switch; 225, first induction plate; 226, first switch bottom plate; 227, eighth fastening assembly; 228, second upper angle steel; 229, second lower angle steel; 230, base vertical plate;

[0086] 401, first support frame; 402, second support frame; 403, support base; 404, upper chain bracket; 405, lower chain bracket; 406, positioning plate; 407, first steel rail; 408, second steel rail; 409, left trolley rail; 410, right trolley rail; 411, steel rail pressing plate; 412, ninth fastening assembly; 413, third upper angle steel; 414, third lower angle steel; 415, tenth fastening assembly; 416, gasket set; 417, eleventh fastening assembly; 418, steel rail base;

[0087] 501, lifting bracket; 502, fixed trolley; 503, left swing arm; 504, right swing arm; 505, upper connecting rod; 506, first shaft sleeve; 507, second pin shaft; 508, second baffle; 509, twelfth fastening assembly; 510, first oil cup; 511, wheel; 512, second oil cup; 513, first spacer ring; 514, second shaft sleeve; 515, bearing; 516, third pin shaft; 517, thirteenth fastening assembly; 518, gland; 519, first bracket stopper; 520, second bracket stopper; 521, lower connecting rod; 522, spring; 523, fourth pin shaft; 524, second spacer ring; 525, connecting plate; 526, second adjusting nut; 527, stud bolt; 528, adjusting gasket; 529, fifth pin shaft; 530, fixed block; 531, fourteenth fastening assembly; 532, first connecting assembly; 533, second connecting assembly; 534, check ring;

[0088] 601, guide rail; 602, guide rail fastening assembly; 603, switch support; 604, proximity switch; 605, switch induction plate; 606, induction plate bottom plate; 607, induction plate fastening assembly;

[0089] 7, rolling mill; 701, deformed wheel; 702, bottom stopper. DETAILED DESCRIPTION

[0090] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0091] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0092] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0093] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the embodiments are not meant to limit the scope of the present application. It should be apparent that the size of the various parts shown in the drawings is not to scale, and that the drawings are not to scale. The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification, if appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely an example, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It should be noted that like reference numerals and letters represent similar items in the following drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0094] In the description of the present application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component itself.

[0095] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0096] In addition, it should be noted that the use of "first", "second" and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0097] A high-efficiency heavy-load over-crossing transport trolley, such as Figures 1-4 As shown, it comprises a driving wheel device 1, a tensioning wheel device 2, a roller chain 3, a bearing support device 4, a lifting traction trolley 5, a position detection system 6;

[0098] As Figures 7-9As shown, the driving wheel device 1 comprises a first base 101, a first reduction motor 102, a first fastening assembly 103, a first coupling 104, a first shaft 105, a first key 106, a first bearing seat 107, a second fastening assembly 108, a second bearing seat 109, a first stop block 110, a transmission sprocket 111, a protective cover 112, a first upper angle steel 113, a first lower angle steel 114, a first H-shaped steel 115, the bottom of the first base 101 is anchored to the foundation by bolts, the first H-shaped steel 115 is welded below the first base 101 and is poured into the foundation by cement, serving as a stable support and impact resistance; the first reduction motor 102 is placed on the right upper part of the first base 101, and is fixed on the first base 101 by the first fastening assembly 103; the protective cover 112 is welded outside the first reduction motor 102, and the left output end of the first reduction motor 102 is connected with the first coupling 104, the left side of the first coupling 104 is connected with the first shaft 105, and the first shaft 105 is fixed in position by the first key 106; the first shaft 105 is sequentially connected with the first bearing seat 107, the transmission sprocket 111 and the second bearing seat 109 from right to left, the first bearing seat 107 and the second bearing seat 109 are fixed on the side of the box body of the first base 101 by the second fastening assembly 108, the bottom plates of the first bearing seat 107 and the second bearing seat 109 are welded with the first stop block 110 on both sides, preventing up and down movement; the transmission sprocket 111 is arranged between the first bearing seat 107 and the second bearing seat 109, and the outer edge of the transmission sprocket 111 is engaged with the roller chain 3 to form chain transmission; the first upper angle steel 113 and the first lower angle steel 114 are welded on the side of the box body of the first base 101 (opposite to the first bearing seat 107 and the second bearing seat 109), the first upper angle steel 113 is connected with the third upper angle steel 413 in the bearing and supporting device 4 through the upper chain bracket 404 and is fixed by the tenth fastening assembly 415, and the first lower angle steel 114 is connected with the third lower angle steel 414 in the bearing and supporting device 4 through the lower chain bracket 405 and is fixed by the tenth fastening assembly 415.

[0099] As Figures 10-13As shown, the tensioning wheel device 2 comprises a second base 201, a hydraulic cylinder assembly 202, a sliding seat 203, a third bearing seat 204, a fourth bearing seat 205, a driven sprocket 206, a second shaft 207, a second key 208, a third fastening assembly 209, a third key 210, a hydraulic cylinder sliding plate 211, a fourth fastening assembly 212, a first adjusting bolt 213, a first adjusting nut 214, a base sliding plate 215, a fifth fastening assembly 216, a second H-shaped steel 217, a first pin shaft 218, a first baffle 219, a sixth fastening assembly 220, a first sliding guide rail 221, a seventh fastening assembly 222, a first switch bracket 223, a first proximity switch 224, a first induction plate 225, a first switch bottom plate 226, an eighth fastening assembly 227, a second upper angle steel 228, a second lower angle steel 229, and a base vertical plate 230. The bottom of the second base 201 is anchored to the foundation by bolts, and a second H-shaped steel 217 is welded below the second base 201. The second H-shaped steel 217 is poured into the foundation with cement, serving as stable support and impact resistance. The hydraulic cylinder assembly 202 is placed on the right upper part of the second base 201, and is fixed on the hydraulic cylinder sliding plate 211 by the fifth fastening assembly 216. A third key 210 is arranged between the hydraulic cylinder assembly 202 and the hydraulic cylinder sliding plate 211 to prevent the hydraulic cylinder assembly 202 from moving left and right. The hydraulic cylinder sliding plate 211 is fixed on the base sliding plate 215 by the fourth fastening assembly 212, and four elongated holes are processed on the base sliding plate 215. The base vertical plate 230 is arranged on the right side of the second base 201, and is fixed by welding between the base sliding plate 215 and the base vertical plate 230. Threaded holes are processed on the upper part of the base vertical plate 230 and the right side of the hydraulic cylinder sliding plate 211. The first adjusting bolt 213 passes through the threaded hole on the upper part of the base vertical plate 230 and is screwed into the threaded hole on the right side of the hydraulic cylinder sliding plate 211. The first adjusting bolt 213 is used together with the first adjusting nut 214 to realize the left and right sliding of the hydraulic cylinder sliding plate 211 above the base sliding plate 215. When the hydraulic cylinder sliding plate 211 is at a certain position on the right side of the elongated hole of the base sliding plate 215, the roller chain 3 is in a tensioned state. The first adjusting nut 214 is tightened to maintain the tensioned state of the roller chain 3. The left output end of the hydraulic cylinder assembly 202 is connected to the tail of the sliding seat 203 through the first pin shaft 218, the end of which is positioned by the first baffle 219 and is tightly fixed by the sixth fastening assembly 220. The second shaft 207 is inserted into the head hole of the sliding seat 203, and the third bearing seat 204 and the fourth bearing seat 205 are respectively installed on the two sides of the second shaft 207. The driven sprocket 206 is installed between the third bearing seat 204 and the fourth bearing seat 205 through the second key 208. The outer periphery of the driven sprocket 206 engages with the roller chain 3 to form chain transmission. The third bearing seat 204 and the fourth bearing seat 205 are fixed on the steel plate at the head of the sliding seat 203 by the third fastening assembly 209.The first sliding guide rail 221 is welded on the right side of the box of the second base 201. The first switch bracket 223 is fixed on the first sliding guide rail 221 through the seventh fastening assembly 222. Two groups of first proximity switches 224 are installed on the right side of the first switch bracket 223. The two groups of first proximity switches 224 are located at Y1 and Y2 points respectively. The first induction plate 225 is arranged below the first proximity switch 224. The first induction plate 225 is fixed on the first switch bottom plate 226 through the eighth fastening assembly 227. The first switch bottom plate 226 is fixed on the side plate of the sliding seat 203 through the eighth fastening assembly 227. The second upper angle steel 228 and the second lower angle steel 229 are welded on the left end face of the box of the second base 201. The second upper angle steel 228 and the third upper angle steel 413 in the bearing support device 4 are connected through the chain upper bracket 404 and fixed through the tenth fastening assembly 415. The second lower angle steel 229 and the third lower angle steel 414 in the bearing support device 4 are connected through the chain lower bracket 405 and fixed through the tenth fastening assembly 415.

[0100] The right side of the roller chain 3 is engaged with the transmission sprocket 111, and the left side is engaged with the driven sprocket 206. The upper and lower sections of the roller chain 3 are supported by the chain upper bracket 404 and the chain lower bracket 405 respectively.

[0101] As Figures 14-17As shown, the bearing support device 4 comprises a first support frame 401, a second support frame 402, a support base 403, an upper chain bracket 404, a lower chain bracket 405, a positioning plate 406, a first steel rail 407, a second steel rail 408, a left trolley rail 409, a right trolley rail 410, a steel rail pressing plate 411, a ninth fastening assembly 412, a third upper angle steel 413, a third lower angle steel 414, a tenth fastening assembly 415, a gasket set 416, an eleventh fastening assembly 417, a steel rail base 418, the bottoms of the first support frame 401, the second support frame 402, the support base 403, and the steel rail base 418 are anchored to the foundation by bolts, the first support frame 401 and the second support frame 402 are arranged at the two ends of the bearing support device 4 respectively, for supporting the end portions of the first steel rail 407 and the second steel rail 408; a plurality of sets of steel rail pressing plates 411 are arranged on the left and right sides of the upper portions of the first steel rail 407 and the second steel rail 408, and are fixed to the upper portions of the first support frame 401, the second support frame 402, and the steel rail base 418 through the ninth fastening assembly 412; the positioning plate 406 is arranged at the right end close to the first support frame 401, the first steel rail 407 and the second steel rail 408 are placed in the grooves on the two sides of the positioning plate 406 to prevent the first steel rail 407 and the second steel rail 408 from moving left and right, and the first steel rail 407 and the second steel rail 408 are the transportation channel of the rolling mill; four sets of misshapen wheels 701 are arranged at the bottom of the rolling mill 7, two sets on the left and two sets on the right, and the misshapen wheels 701 can roll and move forward above the first steel rail 407 and the second steel rail 408; four sets of support bases 403 are arranged at uniform intervals between the first support frame 401 and the second support frame 402, and one set of third upper angle steels 413 and third lower angle steels 414 are arranged on the left and right sides of the support base 403 box body; the driving wheel device 1 and the support base 403, the two sets of support bases 403, and the support base 403 and the tensioning wheel device 2 are connected through the upper chain bracket 404 and the lower chain bracket 405, and are fixed together through the tenth fastening assembly 415; the number of the upper chain bracket 404 and the lower chain bracket 405 is five sets, wherein the first upper angle steel 113, the third upper angle steel 413, the third upper angle steel 413, the second upper angle steel 228, and other sets of upper angle steels are connected through the upper chain bracket 404; the first lower angle steel 114, the third lower angle steel 414, the third lower angle steel 414, the second lower angle steel 229, and other sets of lower angle steels are connected through the lower chain bracket 405; the left trolley rail 409 and the right trolley rail 410 are arranged in left-right symmetry, and are located above the first base 101 box body, the second base 201 box body, and the support base 403 as a whole, and form a semi-closed contour as the walking channel of the wheel 511;The left trolley track 409 and the right trolley track 410 are provided with the gasket set 416 and the eleventh fastening assembly 417 between the first base 101 box body, the second base 201 box body and the supporting base 403, so as to facilitate adjustment of the elevations of the left trolley track 409, the right trolley track 410 and the wheel 511.

[0102] As Figures 18-26As shown, the lifting traction trolley 5 comprises a lifting bracket 501, a fixed frame 502, a left swing arm 503, a right swing arm 504, an upper connecting rod 505, a first shaft sleeve 506, a second pin shaft 507, a second baffle 508, a twelfth fastening assembly 509, a first oil cup 510, a wheel 511, a second oil cup 512, a first distance ring 513, a second shaft sleeve 514, a bearing 515, a third pin shaft 516, a thirteenth fastening assembly 517, a gland 518, a first bracket stop 519, a second bracket stop 520, a lower connecting rod 521, a spring 522, a fourth pin shaft 523, a second distance ring 524, a connecting plate 525, a second adjusting nut 526, a stud 527, an adjusting washer 528, a fifth pin shaft 529, a fixed block 530, a fourteenth fastening assembly 531, a first connecting assembly 532, a second connecting assembly 533, a check ring 534, the lifting bracket 501 is a welded steel structural member, serving as a liftable part with a lifting stroke of H, and the first bracket stop 519 and the second bracket stop 520 are welded on the top of the lifting bracket 501; the middle groove between the first bracket stop 519 and the second bracket stop 520 can pull the bottom surface stop 702 to drag the rolling mill 7 to move horizontally, and the number of the first bracket stop 519 and the second bracket stop 520 is both 2; the fixed frame 502 is a welded steel structural member below the lifting bracket 501; the lifting bracket 501 is connected through the left swing arm 503 and the second pin shaft 507 on the left side, and the second pin shaft 507 passes through the inner holes of the lifting bracket 501 and the left swing arm 503 in sequence; the lifting bracket 501 is connected through the upper connecting rod 505 and the second pin shaft 507 on the right side, and the second pin shaft 507 passes through the inner holes of the lifting bracket 501 and the upper connecting rod 505 in sequence; the lower part of the upper connecting rod 505 and the fixed frame 502 are connected through the right swing arm 504 and the second pin shaft 507, and the second pin shaft 507 passes through the inner holes of the right swing arm 504 and the upper connecting rod 505 in sequence; the fixed frame 502 and the left swing arm 503 (right swing arm 504) are connected through the third pin shaft 516, and the third pin shaft 516 passes through the fixed frame 502 and the left swing arm 503 (right swing arm 504) in sequence; the second shaft sleeve 514 is installed on the outside of the third pin shaft 516, and each end of the third pin shaft 516 has a set of wheels 511; the bearing 515 is installed between the inner hole of the wheel 511 and the shaft head of the third pin shaft 516, and a set of first distance rings 513 is arranged at the shaft shoulder of the inner hole of the fixed frame 502; the gland 518 is installed on the outside of the bearing 515 and is fixed by the thirteenth fastening assembly 517; the second oil cup 512 is arranged at the left end of the third pin shaft 516 for regular injection of dry oil to realize lubrication; the wheel 511 is located in the semi-closed contour formed by the left trolley track 409 and the right trolley track 410 and serves as a running channel thereof;The four wheel groups 511 are arranged on the left swing arm 503 and the right swing arm 504, and each group is connected to the lower connecting rod 521 through the second pin shaft 507. The second pin shaft 507 passes through the inner holes of the left swing arm 503 (the right swing arm 504) and the lower connecting rod 521 in sequence. There are five groups of second pin shafts 507, and the outer side of each group is provided with a first shaft sleeve 506. The left end of the second pin shaft 507 is provided with a second baffle 508, and is fixed and positioned through the twelfth fastening assembly 509. The right end of the second pin shaft 507 is provided with a first oil cup 510, which is regularly filled with dry oil to realize lubrication. Above the lower connecting rod 521, a spring 522 is arranged. The left side of the spring 522 is connected to the left swing arm 503 through the fourth pin shaft 523, and the fourth pin shaft 523 passes through the inner holes of the left swing arm 503 and the second distance ring 524 in sequence. The right side of the spring 522 is connected to the connecting plate 525 through the fifth pin shaft 529, and the fifth pin shaft 529 passes through the inner hole of the connecting plate 525. The fourth pin shaft 523 and the fifth pin shaft 529 are each provided with a group of check rings 534. The right side of the connecting plate 525 is threadedly connected to the stud 527, and the right side of the connecting plate 525 is provided with a group of second adjusting nuts 526. The right side of the stud 527 passes through the inner hole of the right side of the fixed frame 502, and is threadedly connected to the two groups of second adjusting nuts 526 and the adjusting washer 528. By rotating the stud 527, the whole nut 526 and the adjusting washer 528, the spring 522 can be kept in a natural straight state. A fixed block 530 is arranged below the right side of the fixed frame 502, and is fixed and positioned through the fourteenth fastening assembly 531. The right side of the fixed block 530 is connected to the second connecting assembly 533 through a pin shaft, and the left side of the lower connecting rod 521 is connected to the first connecting assembly 532 through a pin shaft. The right side of the second connecting assembly 533 and the left side of the first connecting assembly 532 are respectively connected to the roller chain 3.

[0103] As shown in the drawings, Figures 5-6 The position detection system 6 includes a guide rail 601, a guide rail fastening assembly 602, a switch support frame 603, a proximity switch 604, a switch sensing plate 605, a sensing plate bottom plate 606, and a sensing plate fastening assembly 607. A guide rail 601 is welded on the outer side of the right trolley track 410, and the switch support frame 603 is fixed on the guide rail 601 through the guide rail fastening assembly 602 below. Two groups of proximity switches 604 are installed on the upper side of the switch support frame 603, and are respectively located at O1 and O2. The switch sensing plate 605 is arranged below the proximity switch 604, and is fixed on the sensing plate bottom plate 606 through the sensing plate fastening assembly 607 on the left side. The sensing plate bottom plate 606 is fixed on the front side of the fixed frame 502 through the sensing plate fastening assembly 607.

[0104] To further illustrate the technical solution of the present invention, the working method of the present invention will be further explained through the following embodiments:

[0105] 1. Preparations:

[0106] First, adjust the spring to its naturally extended state. Alternately rotate the second adjusting nut 526 and the double-ended stud 527 to make the spring 522 move left and right. When the spring 522 is in its naturally extended state, tighten the second adjusting nut 526 to keep the spring 522 in its naturally extended state.

[0107] Next, adjust the roller chain to the tensioned position. Figure 28 For example, by alternately rotating the first adjusting bolt 213 and the first adjusting nut 214, the hydraulic cylinder slide plate 211 slides to the left along the upper part of the base slide plate 215. When it slides to a certain position on the left side of the elongated hole of the base slide plate 215, the roller chain 3 is in a tensioned state. Tighten the first adjusting nut 214 to keep the roller chain 3 in a tensioned state. At this time, the hydraulic cylinder assembly 202 is in the middle stroke position (i.e., between the minimum stroke and the maximum stroke), and the piston rod of the hydraulic cylinder assembly 202 can retract to the left or extend to the right.

[0108] Third, mark the takeoff point Y1 and the landing point Y2. Figure 28 For example, the piston rod of the hydraulic cylinder assembly 202 gradually retracts, driving the roller chain 3 to move to the left, thereby dragging the lifting bracket 501 of the lifting traction trolley 5 to gradually rise; when the bottom stop 702 below the mill 7 completely enters the intermediate groove between the first bracket stop 519 and the second bracket stop 520, the piston rod of the hydraulic cylinder assembly 202 stops moving and marks the position Y1 of the first proximity switch 224 of the first group; subsequently, the piston rod of the hydraulic cylinder assembly 202 gradually extends, driving the roller chain 3 to move to the right, thereby pushing the lifting bracket 501 of the lifting traction trolley 5 to gradually descend; when the lifting bracket 501 descends to the lowest point, the bottom stop 702 below the mill 7 has left the intermediate groove between the first bracket stop 519 and the second bracket stop 520, the piston rod of the hydraulic cylinder assembly 202 stops moving and marks the position Y2 of the first proximity switch 224 of the second group. During the entire lifting process, the vertical distance traveled between the highest and lowest points of the lifting bracket 501 is H.

[0109] Fourth, calibrate points O1 and O2. At points O1 and O2 of the transport trolley, calibrate and install two sets of proximity switches 604, with a travel distance of L between the two points.

[0110] Fifth, the pre-check work. Check the running state of the first speed reducer 102, hydraulic cylinder assembly 202, roller chain 3 and other key components, and ensure that the first rail 407, the second rail 408, the left trolley track 409 and the right trolley track 410 and other running channels are unobstructed and free of debris.

[0111] 2. The working method for transporting the rolling mill from the online area to the offline area, as shown in Figures 27-35

[0112] The rolling mill is transported from the online area to the offline area, that is, the rolling mill is transferred from the online rolling workshop to the offline maintenance workshop through the cross-transport trolley in the factory building. That is, the rolling mill starts from point O1, transports to the right through the columns on both sides of the B column row, and finally reaches point O2 in the offline area, which is convenient for subsequent maintenance and replacement work.

[0113] First step, preparation before rolling mill transportation. Confirm that the rolling mill has stopped working, and the connecting parts such as universal shaft, connecting pipeline and power cable related to the rolling mill itself have been disassembled, the lifting bracket 501 is in the lowest position state, and the rolling mill at O1 point has completed the preparation work before cross-transportation.

[0114] Second step, lifting of the lifting bracket. Start the hydraulic cylinder assembly 202, gradually retract the piston rod, and drag the driven sprocket 206 to the left through the sliding seat 203; since the roller chain 3 is already in a tensioned state, its total length is fixed, and a tensile force is formed between the driven sprocket 206 and the transmission sprocket 111; the driven sprocket 206 and the transmission sprocket 111 pull the roller chain 3 to the left side, the left part of the roller chain 3 pulls the first connecting assembly 532 and the lower connecting rod 521 to move to the left, and then the left swing arm 503 and the right swing arm 504 rotate clockwise around the third pin shaft 516, finally completing the lifting of the lifting bracket 501. At this time, the spring 522 is forced to stretch. When the piston rod of the hydraulic cylinder assembly 202 reaches the designated point Y1, the bottom stop block 702 below the rolling mill 7 completely enters the middle groove between the first bracket stop block 519 and the second bracket stop block 520, and the piston rod of the hydraulic cylinder assembly 202 stops moving.

[0115] ​Third step, the rolling mill is transported from O1 point to O2 point. Start the first deceleration motor 102, transmit power to the first shaft 105 through the first coupling 104, finally drag the lifting traction trolley 5 to move right with the meshed transmission sprocket 111 and the roller chain 3, the driven sprocket 206 matches the running rhythm of the roller chain 3 to rotate synchronously; the wheels 511 on both sides of the left swing arm 503 and the right swing arm 504 act as the load-bearing components of the lifting traction trolley 5, passing in the semi-closed contour formed by the left trolley track 409 and the right trolley track 410; 4 sets of walking wheels 701 are arranged at the bottom of the rolling mill 7, which act as the load-bearing components of the heavy equipment rolling mill 7 and can roll forward above the first steel rail 407 and the second steel rail 408; the rolling mill 7 starts from O1 point, cooperates with the lifting traction trolley 5 through the walking wheels 701, and stably arrives at O2 point after running L distance.

[0116] Fourth step, the lifting bracket lands. Start the hydraulic cylinder assembly 202, make the piston rod gradually extend, push the driven sprocket 206 to move right through the sliding seat 203, eliminate the tension between the driven sprocket 206 and the transmission sprocket 111, and the tension borne by the spring 522 also disappears, the spring 522 reversely retracts, drives the left swing arm 503 and the right swing arm 504 to rotate counterclockwise around the third pin shaft 516, and finally completes the landing action of the lifting bracket 501. When the piston rod of the hydraulic cylinder assembly 202 reaches the calibrated point Y2, the lifting bracket 501 lands at the lowest point, the bottom face stop block 702 under the rolling mill 7 completely separates from the intermediate groove between the first bracket stop block 519 and the second bracket stop block 520, and the piston rod of the hydraulic cylinder assembly 202 stops moving.

[0117] Fifth step, the rolling mill performs offline maintenance, replacement of components and other work.

[0118] 3. The working method for transporting the rolling mill from the offline area to the online area, as shown in Figures 36-44

[0119] Transporting the rolling mill from the offline area to the online area means that the rolling mill that has been overhauled and replaced in the offline maintenance workshop is transferred to the online rolling workshop through the cross-transport trolley in the factory building, that is, the rolling mill starts from point O2, transports left through the columns on both sides of the B column row, and finally reaches the O1 point in the online area, preparing for the online rolling work of the rolling mill.

[0120] First step, preparation before rolling mill transportation. Confirm that the rolling mill has been overhauled and adjusted, the lifting bracket 501 is in the lowest position state, and the rolling mill is ready for cross-transport at O2 point.

[0121] ​Second step, lifting bracket lifting. Start hydraulic cylinder assembly 202, the piston rod gradually retracts, through the slide 203 drag driven sprocket 206 to the left movement, because the roller chain 3 is in tension, its total length is fixed, between driven sprocket 206, drive sprocket 111 form a tensile force, driven sprocket 206, drive sprocket 111 to both sides of the traction roller chain 3, the left side of the roller chain 3 pull the first connection assembly 532 and the lower link 521 to the left movement, in turn realize the left swing arm 503 and the right swing arm 504 clockwise rotation around the third pin shaft 516, finally complete the lifting bracket 501 lifting action. At this time, the spring 522 is forced to stretch. When the piston rod of the hydraulic cylinder assembly 202 reaches the standard point Y1, the bottom block 702 under the rolling mill 7 completely enters the middle groove between the first bracket block 519 and the second bracket block 520, and the piston rod of the hydraulic cylinder assembly 202 stops moving.

[0122] Third step, the rolling mill is transported from O2 point to O1 point. Start the first speed reducer motor 102, pass the power to the first shaft 105 through the first coupling 104, and finally drag the lifting traction dolly 5 to the left with the meshed drive sprocket 111 and the roller chain 3. The driven sprocket 206 matches the running rhythm of the roller chain 3 to make follow-up rotation; the wheels 511 on both sides of the left swing arm 503 and the right swing arm 504 serve as the load-bearing components of the lifting traction dolly 5 and travel in the semi-closed profile formed by the left dolly track 409 and the right dolly track 410; the rolling mill 7 is provided with 4 sets of deformation wheels 701 at the bottom, which serve as the load-bearing components of the heavy equipment rolling mill 7 and can roll on the first steel rail 407 and the second steel rail 408. The rolling mill 7 cooperates with the lifting traction dolly 5 through the deformation wheels 701 to start from the O2 point, travel L distance, and smoothly arrive at the O1 point.

[0123] Fourth step, lifting bracket landing. Start the hydraulic cylinder assembly 202, and gradually extend the piston rod to push the driven sprocket 206 to the right through the slide 203; before that, the tensile force between the driven sprocket 206 and the drive sprocket 111 is eliminated, and the tensile force borne by the spring 522 also disappears, the spring 522 reverses and retracts, driving the left swing arm 503 and the right swing arm 504 to rotate counterclockwise around the third pin shaft 516, and finally completing the landing action of the lifting bracket 501. When the piston rod of the hydraulic cylinder assembly 202 reaches the standard point Y2, the lifting bracket 501 reaches the lowest point, the bottom block 702 under the rolling mill 7 completely leaves the middle groove between the first bracket block 519 and the second bracket block 520, and the piston rod of the hydraulic cylinder assembly 202 stops moving.

[0124] Fifth step, the rolling mill performs subsequent online positioning, opening of rolling, etc.

[0125] The application is mainly applied to the overpass transportation area of the hot rolling production line rolling mill workshop, and is used for transporting products, equipment and other objects from the online rolling workshop to the offline maintenance workshop, realizes the transfer function of the products, equipment and other objects in different workshops, and has the advantages of high efficiency, stability, safety and reliability, especially in the transportation of heavy equipment.

[0126] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-efficiency heavy-load over-crossing transport trolley, characterized in that: The device comprises a driving wheel device (1), a tensioning wheel device (2), a roller chain (3), a bearing support device (4), a lifting traction trolley (5) and a position detection system (6); The right direction is the direction close to the offline maintenance workshop, and the left direction is the direction close to the online rolling workshop; The driving wheel device (1) is arranged on the right side of the bearing support device (4), and comprises a transmission sprocket (111) and a first speed reducer motor (102). The first speed reducer motor (102) indirectly drives the transmission sprocket (111) to rotate. The outer edge of the transmission sprocket (111) is engaged with the right end of the roller chain (3) to form chain transmission. The side surface of the driving wheel device (1) is connected with the bearing support device (4); The tensioning wheel device (2) is arranged on the left side of the bearing support device (4), and comprises a driven sprocket (206) and a hydraulic cylinder assembly (202). The outer edge of the driven sprocket (206) is engaged with the left end of the roller chain (3) to form chain transmission. The side surface of the tensioning wheel device (2) is connected with the bearing support device (4); The roller chain (3) is arranged in the middle part of the bearing support device (4); The bearing support device (4) comprises a first steel rail (407) and a second steel rail (408). The first steel rail (407) and the second steel rail (408) are provided with a rolling mill (7). The bearing support device (4) comprises a left trolley track (409) and a right trolley track (410). The left trolley track (409) and the right trolley track (410) are provided with the lifting traction trolley (5). The position detection system (6) is fixed on the outer side of the right trolley track (410). The lifting traction trolley (5) further comprises a lifting bracket (501), the top of the lifting bracket (501) is provided with a first bracket stopper (519) and a second bracket stopper (520), the lower part of the lifting bracket (501) is provided with a fixed frame (502), the left side of the lifting bracket (501) is connected with a left swing arm (503) through a second pin shaft (507), the right side of the lifting bracket (501) is connected with an upper connecting rod (505) through a second pin shaft (507), and the lower part of the upper connecting rod (505) and the fixed frame (502) are connected through a right swing arm (504) and a second pin shaft (507); the fixed frame (502) and the left swing arm (503) or the right swing arm (504) are connected through a third pin shaft (516), the third pin shaft (516) penetrates the fixed frame (502) and the left swing arm (503) or the right swing arm (504) in sequence; the outer side of the third pin shaft (516) is provided with a second shaft sleeve (514), and each end of the third pin shaft (516) is provided with a group of wheels (511); a bearing (515) is arranged between the inner hole of the wheel (511) and the shaft head of the third pin shaft (516), a group of first distance rings (513) are arranged at the shaft shoulder of the inner hole of the fixed frame (502); the outer side of the bearing (515) is provided with a gland (518), and the bearing (515) is fixed through a thirteenth fastening assembly (517); the left end of the third pin shaft (516) is provided with a second oil cup (512); the wheel (511) is located in the semi-closed contour formed by the left trolley track (409) and the right trolley track (410) and serves as a running channel thereof; the left swing arm (503) or the right swing arm (504) and a lower connecting rod (521) are connected through a second pin shaft (507), and the second pin shaft (507) penetrates the inner holes of the left swing arm (503) or the right swing arm (504) and the lower connecting rod (521) in sequence; the outer side of the second pin shaft (507) is provided with a first shaft sleeve (506), the left end of the second pin shaft (507) is provided with a second baffle (508) and is positioned through a twelfth fastening assembly (509); the right end of the second pin shaft (507) is provided with a first oil cup (510); the upper part of the lower connecting rod (521) is provided with a spring (522), the left side of the spring (522) is connected with the left swing arm (503) through a fourth pin shaft (523), and the fourth pin shaft (523) penetrates the inner holes of the left swing arm (503) and a second distance ring (524) in sequence; the right side of the spring (522) is connected with a connecting plate (525) through a fifth pin shaft (529), the fifth pin shaft (529) penetrates the inner hole of the connecting plate (525), a group of baffle rings (534) are arranged on the left and right sides of the fourth pin shaft (523) and the fifth pin shaft (529); the right side of the connecting plate (525) is in threaded connection with a stud bolt (527).The right side of the double-end stud (527) passes through the inner hole of the right side vertical plate of the fixed frame (502), and by rotating the double-end stud (527), the spring (522) is in a natural straight state; A fixed block (530) is arranged below the right side vertical plate of the fixed frame (502) and is fixed by the fourteenth fastening assembly (531); The right side of the second connecting assembly (533) and the left side of the first connecting assembly (532) are connected with the roller chain (3) respectively.

2. The high-efficiency heavy load overcrossing transport trolley of claim 1, wherein, The driving wheel device (1) further includes a first base (101), the bottom of the first base (101) is anchored on the foundation by bolts, a first H-shaped steel (115) is welded below the first base (101), the first H-shaped steel (115) is poured in the foundation by cement, the upper surface right side of the first base (101) is fixed with a first reduction motor (102) through a first fastening assembly (103), the outer side of the first reduction motor (102) is welded with a protective cover (112), the left side output end of the first reduction motor (102) is connected with a first shaft coupling (104), the left side of the first shaft coupling (104) is connected with a first shaft (105) and is fastened through a first key (106), the first shaft (105) is connected with a first bearing seat (107), a transmission chain wheel (111) and a second bearing seat (109) from right to left in sequence, the first bearing seat (107) and the second bearing seat (109) are fixed on the side surface of the box body of the first base (101) through a second fastening assembly (108), the bottom plate sides of the first bearing seat (107) and the second bearing seat (109) are both provided with first stop blocks (110), and the transmission chain wheel (111) is arranged between the first bearing seat (107) and the second bearing seat (109); the box rear end surface of the first base (101) away from the first bearing seat (107) and the second bearing seat (109) is provided with a first upper angle steel (113) and a first lower angle steel (114); the first upper angle steel (113) and the third upper angle steel (413) in the bearing support device (4) are connected through a chain upper bracket (404) and are fixed through a tenth fastening assembly (415); the first lower angle steel (114) and the third lower angle steel (414) in the bearing support device (4) are connected through a chain lower bracket (405) and are fixed through the tenth fastening assembly (415).

3. The high-efficiency heavy load over-bridge transport trolley of claim 1, wherein, The tensioning wheel device (2) further comprises a second base (201), the bottom of the second base (201) is anchored on the foundation by bolts, a second H-shaped steel (217) is welded below the second base (201), the second H-shaped steel (217) is poured in the foundation by cement, a hydraulic cylinder assembly (202) is placed on the upper surface right side of the second base (201), the hydraulic cylinder assembly (202) is fixed on a hydraulic cylinder slide plate (211) through a fifth fastening assembly (216), a third key (210) is arranged between the hydraulic cylinder assembly (202) and the hydraulic cylinder slide plate (211), the hydraulic cylinder slide plate (211) is fixed on a base slide plate (215) through a fourth fastening assembly (212), the hydraulic cylinder slide plate (211) can slide left and right above the base slide plate (215); four groups of long holes are arranged on the base slide plate (215), the right side surface of the base slide plate (215) is connected with a base vertical plate (230), the lower surface of the base vertical plate (230) is fixed on the second base (201), a first adjusting bolt (213) passes through the threaded hole on the upper part of the base vertical plate (230) and is screwed into the threaded hole on the right side of the hydraulic cylinder slide plate (211), a first adjusting nut (214) is arranged on the first adjusting bolt (213).

4. The high capacity, high load, over- center transport trolley of claim 3, wherein, The left side output end of the hydraulic cylinder assembly (202) is connected with the tail of the slide (203) through the first pin shaft (218), the end of the first pin shaft (218) is provided with the first baffle (219) and is fastened through the sixth fastening assembly (220), the head shaft hole of the slide (203) penetrates the second shaft (207), the two sides of the second shaft (207) are respectively provided with the third bearing seat (204) and the fourth bearing seat (205), the third bearing seat (204) and the fourth bearing seat (205) are provided with the driven sprocket (206) therebetween, the inner diameter of the driven sprocket (206) and the second shaft (207) are fastened and positioned through the second key (208), the third bearing seat (204) and the fourth bearing seat (205) are respectively fixed on the head steel plate of the slide (203) through the third fastening assembly (209), the upper part of the front side rib plate of the second base (201) is welded with a first sliding rail (221), the left side of the first switch support (223) is fixed on the first sliding rail (221) through the seventh fastening assembly (222), the right side of the first switch support (223) is provided with two groups of first proximity switches (224), the lower side of the first proximity switch (224) is provided with the first induction plate (225), the left side of the first induction plate (225) is fixed on the first switch bottom plate (226) through the eighth fastening assembly (227), and the first switch bottom plate (226) is fixed on the side stand plate of the slide (203) through the eighth fastening assembly (227); the rear end surface of the box body of the second base (201) is welded with the second upper angle steel (228) and the second lower angle steel (229); the second upper angle steel (228) and the third upper angle steel (413) in the load bearing and supporting device (4) are connected through the chain upper bracket (404) and are fixed through the tenth fastening assembly (415); the second lower angle steel (229) and the third lower angle steel (414) in the load bearing and supporting device (4) are connected through the chain lower bracket (405) and are fixed through the tenth fastening assembly (415).

5. The high capacity, high load, over- center transport trolley of claim 1, wherein, The bearing support device (4) further comprises a first support frame (401) at the right end and a second support frame (402) at the left end, four groups of support bases (403) are arranged between the first support frame (401) and the second support frame (402), a third upper angle steel (413) and a third lower angle steel (414) are arranged on the left and right sides of each support base (403), a plurality of rail bases (418) are arranged on the front and rear sides of the support base (403), a first rail (407) is arranged on the front side of the support base (403), and a second rail (408) is arranged on the rear side of the support base (403), both ends of the first rail (407) and the second rail (408) are arranged on the first support frame (401) and the second support frame (402), a plurality of groups of rail pressing plates (411) are arranged on the upper left and right sides of the first rail (407) and the second rail (408), the rail pressing plates (411) are fixed on the upper parts of the first support frame (401), the second support frame (402) and the rail base (418) through the ninth fastening assembly (412), and the upper parts of the support base (403) are respectively provided with a right trolley track (410) and a left trolley track (409). The left trolley track (409), the right trolley track (410), the upper part of the box body of the first base (101), the upper part of the box body of the second base (201) and the support base (403) are provided with a gasket group (416) and an eleventh fastening assembly (417) therebetween.

6. The high capacity, heavy load, over- center transport trolley of claim 5, wherein, The right end of the first support frame (401) is provided with a positioning plate (406), and the first rail (407) and the second rail (408) are placed in the grooves on the left and right sides of the positioning plate (406); the driving wheel device (1) and the support base (403), the two groups of support bases (403), and the support base (403) and the tensioning wheel device (2) are connected through the upper chain bracket (404) and the lower chain bracket (405), and are fixed through the tenth fastening assembly (415); the plurality of groups of upper angle steels are connected through the upper chain bracket (404); the plurality of groups of lower angle steels are connected through the lower chain bracket (405).

7. The high capacity, high efficiency crossover transporter trolley of claim 1, wherein, The bottom of the rolling mill (7) is provided with a plurality of groups of walking wheels (701), and the walking wheels (701) are used to make the rolling mill (7) roll and travel above the first rail (407) and the second rail (408).

8. The high capacity, high efficiency crossover transporter trolley of claim 1, wherein, The position detection system (6) further comprises a guide rail (601) welded on the outer side of the right trolley track (410), and a switch support frame (603) is fixed on the guide rail (601) below the guide rail fastening assembly (602); two groups of proximity switches (604) are installed and fixed above the switch support frame (603); a switch sensing plate (605) is arranged below the proximity switch (604), and the left side of the switch sensing plate (605) is fixed on the sensing plate bottom plate (606) through the sensing plate fastening assembly (607), and the sensing plate bottom plate (606) is installed on the front side stand of the fixed trolley frame (502) through the sensing plate fastening assembly (607).

9. A method of operation of a high-capacity straddle carrier, implemented by means of a high-capacity straddle carrier according to any one of claims 1-8, characterized in that, The working method comprises the following steps: S1, confirming that the rolling mill (7) has stopped working, and the universal joint shaft, connecting pipeline and power cable connector related to the rolling mill (7) have been disassembled, and the lifting bracket (501) is in the lowest position state, and the rolling mill (7) is ready for the cross-transportation at the O1 point; S2, starting the hydraulic cylinder assembly (202), and gradually retracting the piston rod to drag the driven sprocket (206) to move left through the sliding seat (203); because the roller chain (3) is in a tensioned state, the total length is fixed, and the stretching force is formed between the driven sprocket (206) and the transmission sprocket (111); the driven sprocket (206) and the transmission sprocket (111) pull the roller chain (3) to the two sides, the left part of the roller chain (3) pulls the first connecting assembly (532) and the lower connecting rod (521) to move left, and then the left swing arm (503) and the right swing arm (504) rotate clockwise around the third pin shaft (516), and the lifting bracket (501) is lifted; at this time, the spring (522) is forced to stretch; when the piston rod of the hydraulic cylinder assembly (202) reaches the standard point Y1, the bottom surface stop block (702) below the rolling mill (7) completely enters the middle groove between the first bracket stop block (519) and the second bracket stop block (520), and the piston rod of the hydraulic cylinder assembly (202) stops moving. The working method comprises the following steps: S1, confirming that the rolling mill (7) has stopped working, and the universal joint shaft, connecting pipeline and power cable connector related to the rolling mill (7) have been disassembled, and the lifting bracket (501) is in the lowest position state, and the rolling mill (7) is ready for the cross-transportation at the O1 point; S2, starting the hydraulic cylinder assembly (202), and gradually retracting the piston rod to drag the driven sprocket (206) to move left through the sliding seat (203); because the roller chain (3) is in a tensioned state, the total length is fixed, and the stretching force is formed between the driven sprocket (206) and the transmission sprocket (111); the driven sprocket (206) and the transmission sprocket (111) pull the roller chain (3) to the two sides, the left part of the roller chain (3) pulls the first connecting assembly (532) and the lower connecting rod (521) to move left, and then the left swing arm (503) and the right swing arm (504) rotate clockwise around the third pin shaft (516), and the lifting bracket (501) is lifted; at this time, the spring (522) is forced to stretch; when the piston rod of the hydraulic cylinder assembly (202) reaches the standard point Y1, the bottom surface stop block (702) below the rolling mill (7) completely enters the middle groove between the first bracket stop block (519) and the second bracket stop block (520), and the piston rod of the hydraulic cylinder assembly (202) stops moving. ​ ​ S3, the rolling mill (7) is transported from O1 point to O2 point, the first speed reducer (102) is started, the power is transmitted to the first shaft (105) through the first coupling (104), the meshed transmission sprocket (111) drags the lifting traction trolley (5) to move right with the roller chain (3), the driven sprocket (206) matches the running rhythm of the roller chain (3) to rotate; the wheels (511) on both sides of the left swing arm (503) and the right swing arm (504) are used as the bearing parts of the lifting traction trolley (5), and pass through the semi-closed contour formed by the left trolley track (409) and the right trolley track (410); the walking wheels (701) are arranged at the bottom of the rolling mill (7), the walking wheels (701) are used as the bearing parts of the heavy equipment rolling mill (7), and can roll forward above the first steel rail (407) and the second steel rail (408); the rolling mill (7) cooperates with the lifting traction trolley (5) through the walking wheels (701), starts from O1 point, and stably arrives at O2 point after running L distance; S4, the hydraulic cylinder assembly (202) is started, the piston rod is gradually elongated, the driven sprocket (206) is pushed to move right through the sliding seat (203), the tensioning force between the driven sprocket (206) and the transmission sprocket (111) is eliminated, the tensioning force borne by the spring (522) also disappears, the spring (522) reversely retracts, drives the left swing arm (503) and the right swing arm (504) to rotate counterclockwise around the third pin shaft (516), and the lowering action of the lifting bracket (501) is completed; when the piston rod of the hydraulic cylinder assembly (202) reaches the calibrated point Y2, the lifting bracket (501) is lowered to the lowest point, the bottom stop block (702) below the rolling mill (7) is completely separated from the intermediate groove between the first bracket stop block (519) and the second bracket stop block (520), and the piston rod of the hydraulic cylinder assembly (202) stops moving; S5, the rolling mill (7) is offline for maintenance and component replacement; The working method that the rolling mill (7) is transported from the offline area to the online area, the rolling mill (7) starts from the point O2, is transported to the left, and finally reaches the O1 point in the online area, comprising the following steps: T1, confirming that the rolling mill (7) has been adjusted after maintenance, the lifting bracket (501) is in the lowest position state, and the rolling mill (7) is ready for cross-transportation at the O2 point; T2, start the hydraulic cylinder assembly (202), the piston rod gradually retracts, through the slide (203) drag driven sprocket (206) to the left movement, because the roller chain (3) is in tension, its total length is fixed, between the driven sprocket (206), transmission sprocket (111) form a tensile force, driven sprocket (206), transmission sprocket (111) to both sides of the traction roller chain (3), the left side of the roller chain (3) pull the first connection assembly (532) and the lower link (521) to the left movement, in turn realize the left swing arm (503) and the right swing arm (504) clockwise rotation around the third pin shaft (516), complete the lifting bracket (501) lifting action; At this time the spring (522) is forced to stretch; When the piston rod of the hydraulic cylinder assembly (202) reaches the standard point Y1, the bottom block (702) below the rolling mill (7) is completely entered into the middle groove between the first bracket block (519) and the second bracket block (520), the piston rod of the hydraulic cylinder assembly (202) stops moving; T3, start the first speed reducer motor (102), through the first shaft coupling (104) to the first shaft (105), the transmission sprocket (111) and the roller chain (3) together drag lifting traction dolly (5) to the left movement, driven sprocket (206) match the operation pace of the roller chain (3) with the servo rotation; The wheels (511) on both sides of the left swing arm (503) and the right swing arm (504) are used as the bearing components of the lifting traction dolly (5) and pass through the semi-closed contour formed by the left dolly track (409) and the right dolly track (410); The bottom of the rolling mill (7) is provided with a walking wheel (701), which is used as a bearing component of the heavy equipment rolling mill (7) and can roll forward above the first steel rail (407) and the second steel rail (408). The rolling mill (7) cooperates with the lifting traction dolly (5) through the walking wheel (701), starts from O2 point, runs L distance and stably reaches O1 point; T4, start the hydraulic cylinder assembly (202), the piston rod gradually extends, through the slide (203) to drive the driven sprocket (206) to move to the right; Before that, the tensile force between the driven sprocket (206) and the transmission sprocket (111) is eliminated, the tensile force borne by the spring (522) also disappears, the spring (522) reversely retracts, drives the left swing arm (503) and the right swing arm (504) to rotate counterclockwise around the third pin shaft (516), and finally completes the lowering action of the lifting bracket (501); When the piston rod of the hydraulic cylinder assembly (202) reaches the standard point Y2, the lifting bracket (501) is lowered to the lowest point, the bottom block (702) below the rolling mill (7) is completely separated from the middle groove between the first bracket block (519) and the second bracket block (520), and the piston rod of the hydraulic cylinder assembly (202) stops moving; T5, the rolling mill (7) performs subsequent online positioning and starts rolling work.

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