Maintenance auxiliary device and rolling mill assembly

Abstract

A roller changing trolley moves to be close to a rolling mill, a fixed platform is supported on the roller changing trolley and is provided with a supporting part deviating from the roller changing trolley, a fence in the fixed platform is connected with the supporting part, a limited space is defined by the fence, and a maintainer climbs to the supporting part of the fixed platform. The lifting mechanism is connected to the supporting part and provided with a lifting part capable of ascending and descending, the lifting part can ascend to support the hydraulic cylinder, the lifting mechanism is adjacent to the fence, and maintenance personnel on the supporting part dismantle the hydraulic cylinder in the limited space of the fence. The detached hydraulic cylinder is supported on the lifting mechanism, moves away from the rolling mill together with the roll changing trolley, and then is hoisted, transferred and maintained. The fence can reduce potential safety hazards, operation is convenient through the arrangement of the lifting mechanism, the maintenance efficiency of maintenance personnel is improved, and the technical problems that the maintenance efficiency of the rolling mill is low and potential safety hazards exist are solved to a certain degree.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of maintenance assistance, and particularly relates to a maintenance assistance device and a rolling mill assembly. BACKGROUND

[0002] In the process of rolling plate material, the rolling mill of a hot continuous rolling production line needs to control the position of the roller through a hydraulic cylinder to adjust the thickness of the roll gap between the rollers, so as to control the thickness of the plate material rolled between the roll gaps. In order to ensure the stability and reliability of the rolled plate material, the hydraulic cylinder and other related parts of the rolling mill need to be maintained regularly.

[0003] At present, the maintenance of the hydraulic cylinder and other related parts needs to remove the hydraulic cylinder from the rolling mill and place it on a support platform, and then transfer it for maintenance. However, the process of replacing the hydraulic cylinder is relatively cumbersome, the maintenance efficiency is low, and there is a certain safety hazard, which reduces the maintenance efficiency of the rolling mill and has safety hazards. SUMMARY

[0004] The application aims to at least solve the technical problem of low maintenance efficiency and safety hazards of the rolling mill to some extent. To this end, the application provides a maintenance assistance device and a rolling mill assembly.

[0005] The application provides a maintenance assistance device for maintaining a rolling mill, comprising:

[0006] A roller changing trolley is used to move close to or away from the rolling mill;

[0007] A fixed platform is supported on the roller changing trolley and is provided with a support part and a fence. The support part faces away from the roller changing trolley. The fence is connected to the support part and encloses a limited space.

[0008] A lifting mechanism is connected to the support part and adjacent to the fence. The lifting mechanism is provided with a liftable lifting part.

[0009] In some or certain embodiments, the maintenance assistance device further comprises:

[0010] A first ladder is located in the limited space and is movably supported on the support part.

[0011] In some or certain embodiments, the fixed platform further comprises a ladder stand provided on one side of the support part. The ladder stand is used to climb to the support part.

[0012] In some or certain embodiments, the rolling mill comprises a hydraulic cylinder provided with a groove at one end. The lifting part of the lifting mechanism is provided with a positioning protrusion. The positioning protrusion is used to insert into the groove.

[0013] In some or certain embodiments, the lifting mechanism comprises a jack and a lifting platform, two ends of the jack are connected with the support part and the lifting platform respectively, and the lifting platform is configured as the lifting part.

[0014] In some or certain embodiments, the lifting mechanism further comprises:

[0015] A reinforcing member is connected with the support part around the jack, one end of the jack is movably penetrated through the reinforcing member and connected with the lifting platform, and the lifting platform is supported on the reinforcing member.

[0016] In some or certain embodiments, the jack is a hydraulic jack, and the maintenance auxiliary device further comprises a hydraulic pump station, which is movably arranged on the support part and used to drive the hydraulic jack to lift.

[0017] In some or certain embodiments, the roll changing trolley is provided with at least two spaced support columns, and the fixed platform is provided with at least two positioning grooves arranged on the at least two support columns.

[0018] In some or certain embodiments, the maintenance auxiliary device comprises at least two lifting mechanisms arranged on the support part, and the maintenance auxiliary device further comprises:

[0019] A height increasing platform is supported on the lifting part of the at least two lifting mechanisms.

[0020] The application also provides a rolling mill assembly, comprising:

[0021] A rolling mill is provided with spaced operation side and transmission side, the rolling mill comprises two racks arranged on the operation side and the transmission side respectively, and a hydraulic cylinder connected with the two racks respectively;

[0022] The maintenance auxiliary device as described above, the fixed platform has a length direction, the fixed platform extends from the operation side to the transmission side, and the maintenance auxiliary device is provided with two lifting mechanisms corresponding to the two racks respectively.

[0023] According to one or more embodiments of the application, the following beneficial effects are provided:

[0024] When the hydraulic cylinder or related parts of the rolling mill need to be maintained, the roll changing trolley can be moved close to the rolling mill, and the fixed platform supported on the roll changing trolley can be moved close to the rolling mill together with the roll changing trolley. The fixed platform close to the rolling mill can provide an operation space for the maintenance and replacement of the rolling mill. The fixed platform is supported on the roll changing trolley and is provided with a support portion away from the roll changing trolley. The fence in the fixed platform is connected with the support portion and is enclosed into a limited space. The maintenance personnel can climb to the support portion of the fixed platform. The maintenance personnel can assist in the maintenance or replacement of the rolling mill on the support portion. The fence can reduce the possibility of falling or slipping of the maintenance personnel and reduce the safety hazards of the maintenance personnel during the maintenance of the rolling mill. The lifting mechanism is connected to the support portion and is provided with a liftable lifting portion. The lifting portion can be lifted to support the hydraulic cylinder. The lifting mechanism is adjacent to the fence. The maintenance personnel can remove the hydraulic cylinder on the lifting mechanism near the fence at the appropriate height in the limited space of the fence, which facilitates the maintenance and disassembly of the hydraulic cylinder. The removed hydraulic cylinder can be supported on the lifting mechanism and moved together with the lifting mechanism, the fixed platform and the roll changing trolley away from the rolling mill. The hydraulic cylinder is hoisted and transferred for maintenance. The overall working process of the maintenance personnel is relatively safe and stable, which can reduce the safety hazards during the maintenance of the rolling mill, facilitate the operation, improve the maintenance efficiency of the maintenance personnel, and solve the technical problems of low maintenance efficiency and safety hazards of the rolling mill to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. 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 creating laborious work.

[0026] Figure 1 A use state diagram of a maintenance auxiliary device in some embodiments or certain embodiments of the present application is shown.

[0027] Figure 2 A side view of a maintenance auxiliary device in some embodiments or certain embodiments of the present application is shown.

[0028] Figure 3 A top view of a maintenance auxiliary device in some embodiments or certain embodiments of the present application is shown.

[0029] Figure 4 A structure diagram of a lifting platform in some embodiments or certain embodiments of the present application is shown.

[0030] Figure 5 A structure diagram of a reinforcing member in some embodiments or certain embodiments of the present application is shown.

[0031] Figure 6A schematic diagram of another maintenance auxiliary device is shown in some embodiments or certain embodiments of the application.

[0032] Figure 7 A simplified schematic diagram of a rolling mill assembly is shown in some embodiments or certain embodiments of the application.

[0033] Figure 8 A simplified schematic diagram of a rolling mill is shown in some embodiments or certain embodiments of the application.

[0034] Legend: 1, roll changing trolley; 11, support column; 2, fixed platform; 21, support part; 22, fence; 221, limited space; 23, cat ladder; 3, lifting mechanism; 31, lifting part; 311, positioning protrusion; 312, matching protrusion; 32, jack; 33, reinforcing piece; 331, main body; 3311, containing groove; 3312, support groove; 3313, movable hole; 332, reinforcing rib; 333, lifting lug; 4, first cat ladder; 5, height increasing platform; 51, matching groove; 6, second cat ladder; 7, liquid pump station; 10, rolling mill; 101, operating side; 102, transmission side; 103, rack; 104, hydraulic cylinder; 1041, groove; 105, lining plate; 106, stepped pad. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0039] In the related art, the internal space of the rolling mill is narrow, and the hydraulic cylinder is heavy and complex in structure, which is inconvenient to move. When maintaining the hydraulic cylinder, a support platform is needed to support the hydraulic cylinder, and then the hydraulic cylinder and the rack of the rolling mill are manually disassembled, and then the lifting equipment is used to transfer the hydraulic cylinder. This process is relatively cumbersome, and the maintenance personnel need to stand on the rack or the parts of the rolling mill which are more oily to disassemble and assemble the hydraulic cylinder, and the overall operation and replacement of the hydraulic cylinder are more inconvenient, and there is a safety hazard of slipping and falling of the maintenance personnel. The process of installing the hydraulic cylinder to the rack also has the same problem. There is a technical problem of low maintenance efficiency of the rolling mill and safety hazard. The embodiments of the present application provide a maintenance auxiliary device and rolling mill assembly, which can at least solve the above technical problems to some extent.

[0040] The present application will be described below with reference to the accompanying drawings:

[0041] Figure 1 Fig. 1 shows a use state diagram of a maintenance auxiliary device in some embodiments or certain embodiments of the present application, Figure 2 Fig. 2 shows a side view of a maintenance auxiliary device in some embodiments or certain embodiments of the present application, Figure 3 Fig. 3 shows a top view of a maintenance auxiliary device in some embodiments or certain embodiments of the present application, for reference Figures 1 to 3 The embodiments of the present application provide a maintenance auxiliary device for maintaining a rolling mill 10, comprising:

[0042] A roll changing trolley 1 is used to move close to or away from the rolling mill 10.

[0043] A fixed platform 2 is supported on the roll changing trolley 1 and is provided with a support part 21, a fence 22 and a ladder 23. The support part 21 is away from the roll changing trolley 1, and the fence 22 is connected with the support part 21 and the fence 22 is enclosed into a limited space 221.

[0044] A lifting mechanism 3 is connected with the support part 21 and adjacent to the fence 22, and the lifting mechanism 3 is provided with a liftable lifting part 31.

[0045] When the hydraulic cylinder 104 or related parts of the rolling mill 10 need to be maintained, the roll changing trolley 1 can be moved close to the rolling mill 10, and the fixed platform 2 supported on the roll changing trolley 1 can be moved close to the rolling mill 10 together with the roll changing trolley 1. The fixed platform 2 close to the rolling mill 10 can provide an operation space for the maintenance and replacement of the rolling mill 10. The fixed platform 2 is supported on the roll changing trolley 1 and is provided with a support portion 21 away from the roll changing trolley 1. The fence 22 in the fixed platform 2 is connected with the support portion 21, and the fence 22 is enclosed to form a limited space 221. The maintenance personnel can climb to the support portion 21 of the fixed platform 2. The maintenance personnel can assist in the maintenance or replacement of the rolling mill 10 on the support portion 21. The fence 22 can reduce the possibility of falling or slipping of the maintenance personnel and reduce the safety hazards of the maintenance personnel during the maintenance of the rolling mill 10. The lifting mechanism 3 is connected to the support portion 21 and is provided with a liftable lifting portion 31. The lifting portion 31 can be raised to support the hydraulic cylinder 104. The lifting mechanism 3 is adjacent to the fence 22. The maintenance personnel can remove the hydraulic cylinder 104 on the lifting mechanism 3 near the fence 22 at the appropriate height in the limited space 221 of the fence 22, which facilitates the maintenance and disassembly of the hydraulic cylinder 104. The removed hydraulic cylinder 104 can be supported on the lifting mechanism 3 and moved together with the lifting mechanism 3, the fixed platform 2 and the roll changing trolley 1 away from the rolling mill 10. The hydraulic cylinder 104 is hoisted and transferred for maintenance. The overall working process of the maintenance personnel is relatively safe and stable, which can reduce the safety hazards during the maintenance of the rolling mill 10, facilitate the operation, and also help to improve the maintenance efficiency of the maintenance personnel, and to a certain extent, solve the technical problems of low maintenance efficiency and safety hazards of the rolling mill 10.

[0046] When the rolling mill 10 is maintained, the auxiliary maintenance device can assist in the maintenance and replacement of, for example, the stepped pad 106 above the hydraulic cylinder 104 and the lining plate 105 on the rack 103.

[0047] It should be noted that the rolling mill 10 with the hydraulic cylinder 104 can be a finishing mill 10 or some rolling mill 10 that needs to control the thickness of the roll gap. The roll changing trolley 1 can be a mobile trolley with rollers. The roll changing trolley 1 can also be a roll changing device with self-driving and braking. The auxiliary maintenance device can also include a track cooperating with the roll changing trolley 1. One end of the track can extend to the rack 103 of the rolling mill 10, or the track can be provided on the rack 103 and pass through the rack 103 of the rolling mill 10. The roll changing trolley 1 moving along the track can move along the track and can move close to or away from the rack 103 of the rolling mill 10.

[0048] In some or certain embodiments, the fence 22 in the fixed platform 2 can be a fence 22 with an opening on one side. Referring to Figure 3The fence 22 can be in the shape of a U in a top view. One side of the fence 22 has an opening, through which the maintenance personnel can move into the limited space 221, while the safety of the maintenance personnel can be ensured.

[0049] In some or certain embodiments, the fence 22 can also be in the shape of a semicircle or the like in a top view. Figure 3 The shape of the fence 22 can be set according to the needs. The lifting mechanism 3 can be opposite to the opening of the fence 22. This facilitates the movement and disassembly of the maintenance personnel.

[0050] In some or certain embodiments, the maintenance auxiliary device further comprises:

[0051] The first ladder 4 is located in the limited space 221 and is movably supported on the support part 21. The maintenance personnel can also climb up through the first ladder 4 in the auxiliary maintenance device, and the maintenance personnel can adapt to different maintenance heights through the first ladder 4, so as to improve the maintenance efficiency of the rolling mill.

[0052] In some or certain embodiments, the first ladder 4 is movably supported on the support part 21 and is located in the limited space 221. The first ladder 4 is movable in the limited space 221, so as to adjust the position of the first ladder 4, so as to realize the maintenance of the hydraulic cylinder 104 or related parts at different heights or different positions, and facilitate the improvement of the maintenance efficiency of the rolling mill 10.

[0053] In some or certain embodiments, when the maintenance auxiliary device is in use, the height of the first ladder 4 can be less than the height of the fence 22, and the height of the first ladder 4 can be greater than the height of the lifting mechanism 3 and less than the maximum height of the hydraulic cylinder 104. This facilitates the disassembly of the hydraulic cylinder 104.

[0054] In some or certain embodiments, the fixed platform 2 further comprises a ladder 23 arranged on one side of the support part 21, and the ladder 23 is used for climbing to the support part 21. The ladder 23 can facilitate the maintenance personnel to climb to the support part 21 to operate, and facilitate the improvement of the maintenance efficiency of the rolling mill 10.

[0055] In some or certain embodiments, the ladder 23 can be hook-connected or detachably connected with the fixed platform 2. This facilitates the replacement of the ladder 23.

[0056] It should be noted that the length of the ladder 23 and the arrangement mode of the ladder 23. The length of the ladder 23 and the arrangement mode of the ladder 23 can be set according to the height of the fixed platform 2 relative to the ground when the maintenance auxiliary device is in use, and the size of the space when the maintenance auxiliary device is in use. The main body 331 of the fixed platform 2 can also be in the shape of a column or an irregular shape.

[0057] In some or certain embodiments, the roll changing trolley 1 is provided with at least two spaced support columns 11, and the fixed platform 2 is provided with at least two positioning grooves arranged on the at least two support columns 11. The positioning grooves of the fixed platform 2 are arranged on the support columns 11 of the roll changing trolley 1 in a one-to-one correspondence, so as to facilitate the support and positioning of the fixed platform 2 relative to the roll changing trolley 1.

[0058] It should be noted that the support column 11 can also be a roll changing stool on the roll changing trolley 1.

[0059] In some or certain embodiments, the fixed platform 2 can further include a cuboid-shaped main body 331, and a part corresponding to a surface with the largest area of the main body 331 can be configured as the support part 21. The ladder 23 can be connected to one side of the main body 331 in the length direction.

[0060] In some or certain embodiments, the rolling mill 10 includes a hydraulic cylinder 104 provided with a groove 1041 at one end, and the lifting mechanism 3 is provided with a positioning protrusion 311 for inserting into the groove 1041.

[0061] The positioning protrusion 311 of the lifting mechanism 3 can be inserted into the groove 1041 of the hydraulic cylinder 104, so as to achieve rapid positioning of the hydraulic cylinder 104, and the hydraulic cylinder 104 is more stably supported on the lifting mechanism 3, which is also conducive to the maintenance and disassembly of the hydraulic cylinder 104.

[0062] It should be noted that part of the hydraulic cylinder 104 is provided with a groove 1041 at the end due to the assembly requirement of the rolling mill 10, and the groove 1041 can be matched with the positioning protrusion 311.

[0063] In some or certain embodiments, the lifting mechanism 3 includes a jack 32 and a lifting platform, and the two ends of the jack 32 are respectively connected with the support part 21 and the lifting platform. The lifting platform is configured as the lifting part 31.

[0064] The jack 32 can achieve lifting, and the lifting platform is connected with one end of the jack 32 and is configured as the lifting part 31, which can improve the support effect of the hydraulic cylinder 104, is conducive to improving the stability of the hydraulic cylinder 104 during maintenance and disassembly, is convenient for maintenance and disassembly, and is also conducive to improving safety.

[0065] Figure 4 A structural schematic diagram of a lifting platform in some or certain embodiments of the present application is shown, and the lifting platform is connected with the jack 32. Figure 1 The lifting platform is connected with the jack 32. Figure 4 The side of the lifting platform away from the jack 32 can be connected with a positioning pin, and the positioning pin is configured as the positioning protrusion 311. This is convenient for overall disassembly.

[0066] In some or certain embodiments, the lifting mechanism 3 further includes:

[0067] The reinforcing member 33 is connected to the support part 21 around the jack 32, one end of the jack 32 movably penetrates the reinforcing member 33, and the lifting platform is supported on the reinforcing member 33.

[0068] The reinforcing member 33 can support and protect the jack 32, one end of the jack 32 movably penetrates the reinforcing member 33 and is connected with the lifting platform, the lifting platform is supported on the reinforcing member 33, the reinforcing member 33 can improve the stability of the lifting platform, and is conducive to improving the stability of the hydraulic cylinder 104 supported on the lifting platform.

[0069] Figure 5 The structural schematic diagram of a reinforcing member in some or certain embodiments of the application is shown, referring to Figure 1 、 4 , 5, the reinforcing member 33 can include a columnar main body 331 and reinforcing ribs 332 and lifting lugs 333 connected with the peripheral wall of the main body 331, both ends of the main body 331 are respectively provided with coaxial accommodating grooves 3311 and supporting grooves 3312, the main body 331 is further provided with a movable hole 3313 coaxially connecting the accommodating grooves 3311 and the supporting grooves 3312, the jack 32 can be arranged in the accommodating grooves 3311 and connected with the support part 21, one end of the jack 32 movably penetrates the movable hole 3313 and can extend into the supporting grooves 3312 and be connected with the lifting platform, the side of the lifting platform away from the positioning protrusion 311 can be provided with a matching protrusion 312, the matching protrusion 312 can be inserted into the supporting grooves 3312. The overall strength is better, and the stability is better. The reinforcing ribs 332 in the reinforcing member 33 are connected with the support part 21, and the lifting lugs 333 can be used for cooperation with the lifting equipment. The strength of the reinforcing member 33 can be improved, and the hoisting assembly of the reinforcing member 33 is facilitated.

[0070] In some or certain embodiments, the jack 32 is a hydraulic jack 32, and the maintenance auxiliary device further includes a liquid pump station 7, the liquid pump station 7 is movably arranged on the support part 21 and is used to drive the hydraulic jack 32 to lift. The liquid pump station 7 can move on the support part 21, which is convenient for adjusting the space on the support part 21, and is also convenient for realizing the liquid supply and driving of the jack 32.

[0071] In some or certain embodiments, the lifting mechanism 3 can also be a lifting trolley or a gear and rack lifting mechanism 3, etc. The support of the hydraulic cylinder 104 can also be realized through lifting.

[0072] Figure 6 The structural schematic diagram of another maintenance auxiliary device in some or certain embodiments of the application is shown, referring to Figure 6 In some or certain embodiments, the maintenance auxiliary device includes at least two lifting mechanisms 3 arranged at intervals on the support part 21, and the maintenance auxiliary device further includes:

[0073] The elevated platform 5 is supported on the lifting portions 31 of the at least two lifting mechanisms 3.

[0074] The at least two lifting mechanisms 3, which are supported on the support portions 21, can be used to facilitate the disassembly and assembly of the hydraulic cylinders 104 on the two spaced-apart stands 103, thereby improving the efficiency of the maintenance of the rolling mill 10. The maintenance assisting device further comprises the elevated platform 5, which is supported on the lifting portions 31. The elevated platform 5 can be further elevated based on the lifting mechanisms 3. The maintenance personnel can climb onto the elevated platform 5 from the first ladder 4 to perform maintenance or disassembly and replacement of the step pad 106 or the backing plate 105 at a higher position of the rolling mill 10, thereby improving the efficiency of the maintenance of the rolling mill 10.

[0075] In some or certain embodiments, the elevated platform 5 can be provided with a matching groove 51 for inserting the positioning protrusion 311. The use stability of the elevated platform 5 can be improved.

[0076] It should be noted that the elevated platform 5 is movably supported on the lifting portions 31. The elevated platform 5 can be placed on the lifting portions 31 or lowered from the lifting portions 31 according to the requirements. The elevated platform 5 can be lifted and transferred by, for example, a hoisting device.

[0077] In some or certain embodiments, the fixed platform 2 can have a cuboid shape, and a portion corresponding to a surface with a larger area can be configured as the support portion 21. The maintenance assisting device can comprise two lifting mechanisms 3, two fences 22, and the first ladder 4. The two fences 22 can be connected to the two ends of the support portion 21, respectively. The two lifting mechanisms 3 are located between the two fences 22. The maintenance assisting device can further comprise the second ladder 6 located between the two lifting mechanisms 3. This structure facilitates the disassembly and assembly of the hydraulic cylinders 104 on the drive side 102 and the operation side 101 of the rolling mill 10. The addition of the second ladder 6 can facilitate the maintenance personnel to perform maintenance on the rolling mill 10 at different positions, thereby improving the efficiency of the maintenance of the rolling mill 10.

[0078] Based on the same inventive concept, the present application further provides a rolling mill assembly, Figure 7 a simplified structural schematic diagram of a rolling mill assembly in some or certain embodiments of the present application is shown, Figure 8 a simplified structural schematic diagram of a rolling mill in some or certain embodiments of the present application is shown, with reference to Figure 7 、 8 The rolling mill assembly can comprise:

[0079] The rolling mill 10 is provided with a spaced-apart operation side 101 and drive side 102. The rolling mill 10 comprises two stands 103 provided on the operation side 101 and the drive side 102, respectively, and hydraulic cylinders 104 connected to the two stands 103, respectively.

[0080] The maintenance auxiliary device as described above, the fixed platform 2 has a length direction, the fixed platform 2 extends from the operation side 101 to the transmission side 102. The maintenance auxiliary device is provided with two lifting mechanisms 3 corresponding to two racks 103 respectively.

[0081] The structure of the maintenance auxiliary device and its corresponding technical effects can refer to the foregoing, which will not be repeated here. The fixed platform 2 extends from the operation side 101 to the transmission side 102, and the two lifting mechanisms 3 correspond to the two racks 103 respectively, so that the hydraulic cylinders 104 on the racks 103 of the operation side 101 and the transmission side 102 of the rolling mill 10 can be disassembled, facilitating the maintenance and disassembly of the rolling mill 10.

[0082] It should be noted that, Figure 7 is a view of the side view angle of the rolling mill 10, Figure 7 the hydraulic cylinders 104 are not shown in the figure, Figure 8 is a view of the top view angle of the rolling mill 10, Figure 8 and the maintenance auxiliary device is not shown in the figure.

[0083] In some or certain embodiments, the rolling mill 10 in the rolling mill assembly can be, for example, a finishing rolling mill 10 with hydraulic cylinders 104.

[0084] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0085] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the scope of protection required by the present application.

[0086] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A maintenance assisting apparatus characterized by comprising: A device for maintaining a rolling mill, comprising: a roll changing trolley for moving close to or away from the rolling mill; a fixed platform supported on the roll changing trolley and provided with a support portion facing away from the roll changing trolley and a fence connected to the support portion and enclosing a limited space; a lifting mechanism connected to the support portion and adjacent to the fence, the lifting mechanism being provided with a liftable lifting portion.

2. The maintenance aid of claim 1, wherein, The device for maintaining a rolling mill further comprises: a first ladder stand located in the limited space and movably supported on the support portion.

3. The maintenance aid of claim 1, wherein, The fixed platform further comprises a ladder stand provided on one side of the support portion, the ladder stand being used for climbing to the support portion.

4. The maintenance assistance device according to any one of claims 1 to 3, characterized by The lifting mechanism comprises a jack and a lifting platform, two ends of the jack being connected to the support portion and the lifting platform respectively, and the lifting platform being configured as the lifting portion.

5. The maintenance aid of claim 4, wherein, The lifting mechanism further comprises: a reinforcing member connected to the support portion around the jack, one end of the jack movably passing through the reinforcing member and being connected to the lifting platform, and the lifting platform being supported on the reinforcing member.

6. The maintenance aid of claim 4, wherein, The jack is a hydraulic jack, and the device for maintaining a rolling mill further comprises a hydraulic pump station movably provided on the support portion and used for driving the hydraulic jack to lift.

7. The maintenance assistance device according to any one of claims 1 to 3, characterized by The roll changing trolley is provided with at least two spaced support columns, and the fixed platform is provided with at least two positioning grooves provided on the at least two support columns.

8. The maintenance assistance device according to any one of claims 1 to 3, characterized by The device for maintaining a rolling mill comprises at least two lifting mechanisms spaced on the support portion, and further comprises: an elevated platform supported on the lifting portions of the at least two lifting mechanisms.

9. The maintenance aid of claim 8, wherein, The lifting portion of the lifting mechanism is provided with a positioning protrusion, and the elevated platform is provided with a matching groove for sleeving the positioning protrusion.

10. A rolling mill assembly characterized by, The device for maintaining a rolling mill comprises: a rolling mill provided with spaced operation and transmission sides, the rolling mill comprising two racks respectively provided on the operation and transmission sides and hydraulic cylinders respectively connected to the two racks; the device for maintaining a rolling mill according to any one of claims 1 to 9, the fixed platform having a length direction, the fixed platform extending from the operation side to the transmission side, and the device for maintaining a rolling mill being provided with two lifting mechanisms respectively corresponding to the two racks.

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