A torque adjusting clamp, a torque adjusting system and a torque adjusting method for a center beam structure

Abstract

The application discloses a twist adjusting clamp, a twist adjusting system and a twist adjusting method of a middle beam structure, and belongs to the technical field of railway freight transportation. The twist adjusting clamp comprises a first clamping piece and a second clamping piece. The first clamping piece comprises a base and a cantilever assembly, the base is connected with the cantilever assembly to form a fixing cavity, and the fixing cavity is used for fixing one positioning end. The second clamping piece comprises a fixing base, a first clamping part and a second clamping part. The fixing base is used for supporting the other positioning end. The first clamping part and the second clamping part are respectively used for fixing the positioning end from the side of the other positioning end, so as to adjust the core disc gap between the core disc surface corresponding to the positioning end fixed by the second clamping part and the core disc support platform. The positioning end without twist deformation is arranged in the fixing cavity, and the fixing cavity is arranged around the positioning end, so that the positioning end is held from all around, and the fixing effect of the positioning end can be improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of railway freight transport, and particularly relates to a twist adjusting clamp, a twist adjusting system and a twist adjusting method for a middle beam structure. BACKGROUND

[0002] Railway freight transport is widely used for transporting large-volume and heavy freight, and the carriages of railway trains are also relatively large, and the weight structure can bear a large force. The middle beam structure often adopts a box beam structure form spliced by thick plates, and the middle beam structure is relatively large and long. In the manufacturing process, the middle beam can be deformed and twisted due to large welding amount and welding deformation and other complex reasons. In the related art, when the middle beam structure is deformed and twisted, a manual flame adjusting method is used. This process method needs to consider the heating method and heating device in combination with factors such as deformation size, direction, deflection value and the like. This operation method highly depends on manual operation, and the adjusting precision cannot be controlled. Once the operation is failed or the flame position is not appropriate, the deformation and twisting of the middle beam structure will be more serious. In the related art, the deformation and twisting of the middle beam structure cannot be accurately improved. SUMMARY

[0003] The present application aims to at least solve the technical problem of middle beam structure twist adjustment to some extent. To this end, the present application provides a twist adjusting clamp, a twist adjusting system and a twist adjusting method for a middle beam structure.

[0004] In a first aspect, the present application provides a twist adjusting clamp for fixing a middle beam structure in a box beam of a railway freight car. The middle beam structure includes a middle beam component, two positioning ends and two heart disc platforms. The two positioning ends are respectively connected with two ends of the middle beam component. Each positioning end is provided with a heart disc surface. One heart disc platform is connected with one heart disc surface. The twist adjusting clamp includes:

[0005] A first clamping part includes a base and a cantilever assembly. The base and the cantilever assembly are connected to form a fixing cavity. The fixing cavity is used for fixing one of the positioning ends.

[0006] A second clamping part includes a fixing seat, a first clamping part and a second clamping part. The fixing seat is used for supporting the other positioning end. The first clamping part and the second clamping part respectively fix the positioning end from the side of the other positioning end, so as to adjust the heart disc gap between the heart disc surface corresponding to the positioning end fixed by the second clamping part and the heart disc platform.

[0007] The positioning end with the torsional deformation needs to be adjusted is placed on the fixing seat, that is, the fixing seat is arranged below the positioning end, the first clamping part and the second clamping part clamp the positioning end from two sides of the positioning end respectively to fix the positioning end, the pressing mechanism moves downward to contact the positioning end from above the positioning end, and downward pressure is applied to the positioning end to make the positioning end deform to reduce the gap between the heart discs. The positioning end without the torsional deformation is arranged in the fixing cavity, that is, the fixing cavity is arranged around the positioning end to clamp the positioning end from all around, so that the fixing effect on the positioning end is improved.

[0008] In an optional embodiment of the present application, the cantilever assembly comprises a first cantilever segment, a main arm segment and a second cantilever segment, the first cantilever segment and the second cantilever segment are connected to two ends of the main arm segment respectively, and the main arm segment and the base form the fixing cavity.

[0009] In an optional embodiment of the present application, the main arm segment comprises a body, a first connecting segment and a second connecting segment, the first cantilever segment and the second cantilever segment are connected to two ends of the body respectively, the first connecting segment and the second connecting segment are arranged on the main arm segment at intervals, the first connecting segment and the second connecting segment are connected to the base, and the first connecting segment, the main arm segment, the second connecting segment and the base form the fixing cavity.

[0010] In an optional embodiment of the present application, the first connecting segment and the second connecting segment are detachably connected to the base through pins.

[0011] In an optional embodiment of the present application, the cantilever assembly and the base are wrapped around the positioning end.

[0012] In an optional embodiment of the present application, the fixing seat is arranged below the positioning end.

[0013] In an optional embodiment of the present application, the first clamping part comprises a first support and a first driving cylinder, the first driving cylinder is mounted on the first support, and the first driving cylinder can move relative to the first support to abut against the positioning end.

[0014] In an optional embodiment of the present application, the second clamping part comprises a second support and a second driving cylinder, the second driving cylinder is mounted on the second support, and the second driving cylinder can move relative to the second support to abut against the positioning end.

[0015] In a second aspect, the embodiments of the present application provide a torsional adjustment system, comprising a pressing mechanism and the torsional adjustment clamp provided in the first aspect, the pressing mechanism is arranged above the torsional adjustment clamp and is used to apply pressure to the second clamping part corresponding to the positioning end.

[0016] The second aspect provides the torsion adjusting system with the same beneficial effects as the torsion adjusting clamp of the first aspect, and details are not repeated here.

[0017] In an optional embodiment of the present application, the pressure applying mechanism comprises a first pressure applying assembly and a second pressure applying assembly, the first pressure applying assembly is configured to apply pressure to the cantilever assembly to fix the positioning end arranged in the fixing cavity, and the second pressure applying assembly is configured to apply pressure to the second clamping part corresponding to the positioning end to adjust the core disc gap between the core disc surface corresponding to the positioning end fixed by the second clamping part and the core disc support platform.

[0018] In an optional embodiment of the present application, the torsion adjusting system further comprises a controller and a distance detector, the distance detector is configured to detect the core disc gap between the core disc support platform and the core disc surface corresponding to the positioning end fixed by the second clamping part, and the controller is configured to control the first pressure applying assembly to stop applying pressure to the cantilever assembly and control the second pressure applying assembly to stop applying pressure to the positioning end when the core disc gap is less than a set distance.

[0019] In an optional embodiment of the present application, the first pressure applying assembly is arranged above the cantilever assembly, and the second pressure applying assembly is arranged above the second clamping part.

[0020] In the third aspect, the embodiments of the present application provide a torsion adjusting method of a middle beam structure, which is applied to the torsion adjusting system of the second aspect to adjust the core disc gap between the core disc surface and the core disc support platform of the middle beam structure, and the torsion adjusting method of the middle beam structure comprises the following steps of:

[0021] obtaining the core disc gap between the core disc surface and the corresponding core disc support platform;

[0022] judging whether the core disc gap is greater than or equal to a set distance;

[0023] If the core disc gap is greater than or equal to the set distance, the other positioning end is arranged in the fixing cavity, the second clamping part fixes the positioning end with the core disc gap greater than or equal to the set distance, the first pressure applying assembly is controlled to apply pressure to the cantilever assembly to fix the positioning end arranged in the fixing cavity, and the second pressure applying assembly is controlled to apply pressure to the second clamping part corresponding to the positioning end to adjust the core disc gap between the core disc surface corresponding to the positioning end fixed by the second clamping part and the core disc support platform.

[0024] The torsion adjusting method of the middle beam structure of the third aspect has the same beneficial effects as the torsion adjusting system of the second aspect, and details are not repeated here.

[0025] In an optional embodiment of the present application, after the step of controlling the first pressure applying assembly to apply pressure to the cantilever assembly and controlling the second pressure applying assembly to apply pressure to the second clamping part corresponding to the positioning end, the method for adjusting the torsion of the girder structure further comprises:

[0026] If the heart disc gap is greater than or equal to the set distance, then controlling the first pressure applying assembly to stop applying pressure to the cantilever assembly and controlling the second pressure applying assembly to stop applying pressure to the positioning end. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 A structural schematic diagram of a girder structure is shown.

[0029] Figure 2 A structural schematic diagram of a first positioning end of a torsion adjusting system is shown. Figure 1 An enlarged view of the middle A is shown.

[0030] Figure 3 A structural schematic diagram of a second positioning end of a torsion adjusting system is shown.

[0031] Figure 4 A structural schematic diagram of a cantilever assembly of a torsion adjusting system is shown.

[0032] Figure 5 A structural schematic diagram of a first clamping part of a torsion adjusting system is shown.

[0033] Figure 6 A structural schematic diagram of a second clamping part of a torsion adjusting system is shown.

[0034] Figure 7 A structural schematic diagram of a second clamping part of a torsion adjusting system is shown.

[0035] Figure 8 A block diagram of a torsion adjusting system is shown.

[0036] Figure 9 A flow chart of a method for adjusting the torsion of a girder structure is shown.

[0037] Figure numerals: 10-middle beam structure, 110-middle beam composition, 120-positioning end, 121-center plate surface, 123-first positioning end, 125-second positioning end, 130-center plate support, 20-torsion adjustment system, 200-pressure mechanism, 210-first pressure assembly, 212-first hydraulic cylinder, 214-second hydraulic cylinder, 220-second pressure assembly, 230-fixed frame, 300-torsion adjustment fixture, 310-first clamping member, 312-base, 314-cantilever assembly , 314a-first cantilever section, 314b-second cantilever section, 314c-main arm section, 314d-main body, 314e-first connecting section, 314f-second connecting section, 316-fixing cavity, 320-second clamping member, 322-fixing seat, 324-first clamping part, 324a-first bracket, 324b-first drive cylinder, 326-second clamping part, 326a-second bracket, 326b-second drive cylinder, 400-controller, 500-distance detector. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship and movement status of various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] 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 of the technical features or implying 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.

[0042] Railway freight is widely used in the transportation of large volume and heavy freight, and the carriages of railway trains are also relatively large, and the weight structure can withstand a large force. The middle beam structure is often in the form of a box beam structure spliced by thick plates, and the middle beam structure is relatively large and long. In the manufacturing process, due to the large amount of welding, welding deformation and other complex reasons, the middle beam may be deformed and twisted. In the related art, when the middle beam structure is deformed and twisted, a manual flame adjusting method is used. This process method needs to consider the heating method and heating device in combination with factors such as deformation size, direction, deflection value parameters, and the like. This operation method highly depends on manual operation, and the adjustment accuracy cannot be controlled. Moreover, once the operation is failed or the flame position is not appropriate, the deformation and twisting of the middle beam structure will be more serious. In the related art, the twisting of the middle beam structure cannot be accurately improved. The twist adjusting clamp, the twist adjusting system and the twist adjusting method of the middle beam structure provided in the embodiments of the present application can improve the above problems. The twist adjusting clamp, the twist adjusting system and the twist adjusting method of the middle beam structure provided in the embodiments of the present application can automatically adjust the heart disc gap between the heart disc surface and the heart disc support platform, and realize the twist adjustment of the middle beam structure.

[0043] The present application will be described below in conjunction with the accompanying drawings and specific embodiments:

[0044] First embodiment

[0045] The present embodiment provides a twist adjusting system 20. The twist adjusting system 20 provided in the embodiments of the present application is mainly used for twisting the middle beam structure 10, and can automatically realize the twist adjustment of the middle beam structure 10.

[0046] Please refer to Figure 1 and Figure 2 In the present embodiment, the middle beam structure 10 includes a middle beam component 110, two positioning ends 120 and two heart disc support platforms 130. The two positioning ends 120 are respectively connected with the two ends of the middle beam component 110. Each positioning end 120 is provided with a heart disc surface 121. One heart disc support platform 130 is connected with one heart disc surface 121,

[0047] Two positioning ends 120 are respectively connected at two ends of the middle beam component 110, the length of the positioning end 120 is much smaller than the length of the middle beam component 110, the middle beam structure 10 is easy to be twisted, mainly the middle beam component 110 with a long length is easy to be twisted, the core disc bearing platform 130 is arranged below the core disc surface 121 and is in contact with the core disc surface 121, whether the middle beam component 110 is twisted can be judged through the core disc gap between the core disc surface 121 and the core disc bearing platform 130, if the core disc gap exceeds the set distance, it can be determined that the middle beam structure 10 is twisted. Similarly, in the process of adjusting the twist, if the core disc gap is less than the set distance, it can be determined that the twist is completed. That is, in the process of adjusting the twist, the core disc gap can be used as the basis for adjusting the twist.

[0048] In the embodiment, the twist adjusting system 20 comprises a pressing mechanism 200 and a twist adjusting clamp 300, the pressing mechanism 200 is arranged above the twist adjusting clamp 300 and is used to apply pressure to the second clamping part 320 corresponding to the positioning end 120.

[0049] The pressing mechanism 200 is arranged above the twist adjusting clamp 300, the twist adjusting clamp 300 is used to fix the whole middle beam structure 10, the pressing mechanism 200 is used to apply pressure to the middle beam structure 10, so as to adjust the degree of twist of the whole middle beam structure 10, so that the core disc gap can be less than the set distance.

[0050] Please refer to Figure 3 and Figure 4 In the embodiment, the twist adjusting clamp 300 comprises a first clamping part 310 and a second clamping part 320, the first clamping part 310 comprises a base 312 and a cantilever assembly 314, the base 312 is connected with the cantilever assembly 314 to form a fixing cavity 316, the fixing cavity 316 is used to fix one of the positioning ends 120; the second clamping part 320 comprises a fixing seat 322, a first clamping part 324 and a second clamping part 326, the fixing seat 322 is used to place the other positioning end 120, the first clamping part 324 and the second clamping part 326 are respectively fixed to the positioning end 120 from the side of the other positioning end 120, so as to adjust the core disc gap between the core disc surface 121 corresponding to the positioning end 120 fixed by the second clamping part 326 and the core disc bearing platform 130.

[0051] In the embodiment, the torsion of the middle beam structure 10 can occur at either end. If the torsion occurs at one end, the positioning end 120 at the other end is placed in the fixing cavity 316, the positioning end 120 at the end where the torsion occurs is fixed on the second clamping member 320, the first clamping part 324 and the second clamping part 326 of the second clamping member 320 are respectively fixed on the positioning end 120 from both sides of the positioning end 120, and the pressure applying mechanism 200 applies pressure on the positioning end 120, so as to adjust the torsion of the end, and make the core disc gap between the corresponding core disc surface 121 of the positioning end 120 and the core disc support 130 less than the set distance.

[0052] That is, the second clamping member 320 is always fixed on the end where the torsion deformation needs to be adjusted, and the first clamping member 310 is always fixed on the end where the torsion deformation does not need to be adjusted. Both ends of the middle beam structure 10 are the positioning ends 120, therefore, the first clamping member 310 is always fixed on the positioning end 120 of the end where the torsion deformation does not need to be adjusted, and the second clamping member 320 is always fixed on the positioning end 120 of the end where the torsion deformation needs to be adjusted.

[0053] In the embodiment, the positioning end 120 where the torsion deformation needs to be adjusted is placed on the fixing seat 322, that is, the fixing seat 322 is arranged below the positioning end 120, the first clamping part 324 and the second clamping part 326 respectively clamp the positioning end 120 from both sides of the positioning end 120 to fix the positioning end 120, and the pressure applying mechanism 200 moves downward to contact the positioning end 120 from above the positioning end 120 to apply downward pressure on the positioning end 120, so as to make the positioning end 120 deform to reduce the core disc gap.

[0054] The positioning end 120 where the torsion deformation does not need to be adjusted is arranged in the fixing cavity 316, that is, the fixing cavity 316 is arranged around the positioning end 120 to hold the positioning end 120 from all around the positioning end 120, so as to improve the fixing effect on the positioning end 120.

[0055] For example, the positioning end 120 is respectively a first positioning end 123 and a second positioning end 125. If the core disc gap corresponding to the first positioning end 123 exceeds the set distance, it indicates that the middle beam component 110 close to the first positioning end 123 is twisted, the second positioning end 125 is placed in the fixing cavity 316, the first clamping part 324 and the second clamping part 326 clamp the first positioning end 123, and the pressure applying mechanism 200 applies pressure on the first positioning end 123 from above the first positioning end 123 to make the first positioning end 123 deform towards the core disc support 130 to reduce the core disc gap between the core disc surface 121 and the core disc support 130.

[0056] Similarly, if the core disk gap corresponding to the second positioning end 125 exceeds the set distance, it means that the center beam assembly 110 is twisted near the second positioning end 125, and the first positioning end 123 is placed in the fixed cavity 316, and the first clamping part 324 and the second clamping part 326 clamp the second positioning end 125, and the pressure mechanism 200 applies pressure from the upper side of the second positioning end 125 to the second positioning end 125 support, so that the second positioning end 125 moves closer to the core disk base 130, reducing the core disk gap between the core disk surface 121 and the core disk gap.

[0057] In this embodiment, for ease of description, the second positioning end 125 is taken as an example where it needs to be adjusted, i.e., the first positioning end 123 is fixed to the first clamping member 310, and the second positioning end 125 is fixed to the second clamping member 320. When the first positioning end 123 needs to be adjusted, the same can be applied.

[0058] In this embodiment, the pressure mechanism 200 includes a first pressure component 210 and a second pressure component 220. The first pressure component 210 is used to apply pressure to the cantilever component 314 to fix the positioning end 120 set in the fixing cavity 316. The second pressure component 220 is used to apply pressure to the positioning end 120 corresponding to the second clamping member 320 to adjust the center disk gap between the center disk surface 121 corresponding to the positioning end 120 fixed by the second clamping portion 326 and the center disk base 130.

[0059] The first pressure-applying component 210 is arranged above the cantilever component 314 and is used to apply pressure to the cantilever component 314. When the first positioning end 123 is placed in the fixing cavity 316, the first applying component applies pressure on the cantilever component 314, so that the cantilever component 314 can press the first positioning end 123 from above, thereby fixing the first positioning end 123. Applying pressure on the cantilever component 314 and transmitting the force to the first positioning end 123 through the cantilever component 314 can increase the force-bearing area of ​​the first positioning end 123 and reduce damage to the first positioning end 123 during the process of fixing the first positioning end 123.

[0060] The second pressure component 220 applies pressure directly on the second positioning end 125 , which can subject the second positioning end 125 to greater pressure, deform the second positioning end 125 , and make the center-disc gap of the second positioning end 125 smaller than the set distance.

[0061] In this embodiment, the first pressure-applying assembly 210 is disposed above the cantilever assembly 314 , and the second pressure-applying assembly 220 is disposed above the second clamping member 320 .

[0062] The cantilever assembly 314 is arranged below the first pressing assembly 210, and the second clamping member 320 is also arranged below the second pressing assembly 220, that is, the first pressing assembly 210 and the second pressing assembly 220 both apply pressure from top to bottom, thereby ensuring the stability of the pressing.

[0063] The pressing mechanism 200 also includes a fixed frame 230, and the first pressing assembly 210 and the second pressing assembly are both mounted on the fixed frame 230, and the fixed frame 230 is arranged along the extension direction of the girder structure 10.

[0064] Please refer to Figure 5 In the embodiment, the cantilever assembly 314 includes a first cantilever section 314a, a main arm section 314c, and a second cantilever section 314b, the first cantilever section 314a and the second cantilever section 314b are respectively connected to two ends of the main arm section 314c, and the main arm section 314c forms a fixed cavity 316 with the base 312.

[0065] The main arm section 314c is used for fixing the first positioning end 123, the first cantilever section 314a and the second cantilever section 314b are arranged on both sides of the main arm section 314c, the first pressing assembly 210 includes a first hydraulic cylinder 212 and a second hydraulic cylinder 214, the first hydraulic cylinder 212 applies pressure to the first cantilever section 314a, and the second hydraulic cylinder 214 applies pressure to the second cantilever section 314b, and the first cantilever section 314a and the second cantilever section 314b can increase the torque received by the main arm section 314c, thereby being able to press the first positioning end 123.

[0066] In order to increase the torque received by the main arm section 314c, the first hydraulic cylinder 212 can apply pressure to one end of the first cantilever section 314a away from the main arm section 314c, and similarly, the second hydraulic cylinder 214 can apply pressure to one end of the second cantilever section 314b away from the main arm section 314c.

[0067] In the embodiment, the main arm section 314c is mainly used for fixing the upper half of the first positioning end 123, and the first positioning end 123 is held from above, thereby improving the fixing effect of the first positioning end 123.

[0068] In the embodiment, the main arm section 314c includes a body 314d, a first connecting section 314e, and a second connecting section 314f, the first cantilever section 314a and the second cantilever section 314b are respectively connected to two ends of the body 314d, the first connecting section 314e and the second connecting section 314f are arranged on the main arm section 314c in a spaced manner, the first connecting section 314e and the second connecting section 314f are both connected to the base 312, and the first connecting section 314e, the main arm section 314c, the second connecting section 314f, and the base 312 form the fixed cavity 316.

[0069] The first connecting section 314e and the second connecting section 314f are arranged on one side of the body 314d, and the first cantilever section 314a and the second cantilever section 314b are arranged at two ends of the body respectively, and the first connecting section 314e and the second connecting section 314f are mainly used for connecting with the base 312. The first connecting section 314e and the second connecting section 314f are protruded on the body 314d, and the first connecting section 314e and the second connecting section 314f are arranged at intervals. The first positioning end 123 can be arranged between the first connecting section 314e and the second connecting section 314f.

[0070] In the embodiment, the first connecting section 314e and the second connecting section 314f are detachably connected with the base 312 through the pin shafts. When fixing the first positioning end 123, the first positioning end 123 is placed on the base 312 first, and then the whole cantilever assembly 314 is placed on the base 312, so that the cantilever assembly 314 is arranged above the base 312, and then the first connecting section 314e and the second connecting section 314f are fixed with the base 312 respectively, and after the torque is completed, the whole cantilever assembly 314 is detached from the base 312.

[0071] The cantilever assembly 314 and the base 312 are covered in the positioning end 120 (the first positioning end 123). The cantilever assembly 314 and the base 312 form a fixing cavity 316 which is an annular cavity fixed from the periphery of the first positioning end 123, which can improve the fixing effect of the first positioning end 123 and reduce the risk of deformation or disengagement of the first positioning end 123.

[0072] In the embodiment, the base 312 is arranged below the positioning end 120. The base 312 is arranged below the first positioning end 123, and the base 312 supports the first positioning end 123 from below the first positioning end 123, which can facilitate the fixing of the first positioning end 123.

[0073] Please refer to Figure 6 In the embodiment, the first clamping part 324 includes a first support 324a and a first driving cylinder 324b, and the first driving cylinder 324b is installed on the first support 324a and can move relative to the first support 324a to abut against the positioning end 120 (the second positioning end 125).

[0074] The first support 324a is arranged vertically, and the first driving cylinder 324b is arranged horizontally. The first driving cylinder 324b moves towards or away from the second positioning end 125, and can abut against the second positioning end 125 from one side of the second positioning end 125 to fix the second positioning end 125.

[0075] Please refer to Figure 7In the embodiment, the second clamping part 326 comprises a second support 326a and a second driving cylinder 326b, the second driving cylinder 326b is mounted on the second support 326a, and the second driving cylinder 326b is movable relative to the second support 326a to abut against the positioning end 120.

[0076] Similarly, the second support 326a is vertically arranged, and the second driving cylinder 326b is horizontally arranged, and the second driving cylinder 326b is movable towards or away from the second positioning end 125, and is capable of abutting against the second positioning end 125 from one side of the second positioning end 125 to fix the second positioning end 125.

[0077] In the embodiment, the first driving cylinder 324b and the second driving cylinder 326b are arranged on the opposite sides of the second positioning end 125, and the first driving cylinder 324b and the second driving cylinder 326b abut against the second positioning end 125 from the two sides of the second positioning end 125, which is equivalent to that the first driving cylinder 324b and the second driving cylinder 326b can clamp the second positioning end 125 from the two sides of the second positioning end 125, so that the second pressure applying assembly 220 can apply pressure to the second positioning end 125 from above the second positioning end 125.

[0078] In other words, it can be considered that the fixing seat 322 is arranged below the second positioning end 125, the first driving cylinder 324b is arranged on the left side of the second positioning end 125, the second driving cylinder 326b is arranged on the right side of the second positioning end 125, and the second pressure applying assembly 220 is arranged above the second positioning end 125 to apply pressure downward from above the second positioning end 125.

[0079] Please refer to Figure 8 In the embodiment, the torque adjusting system 20 further comprises a controller 400 and a distance detector 500, the distance detector 500 is used to detect the core disc gap between the core disc surface 121 and the core disc bearing platform 130 corresponding to the positioning end 120 fixed by the second clamping part 320, and the controller 400 is used to control the first pressure applying assembly 210 to stop applying pressure to the cantilever assembly 314 and control the second pressure applying assembly 220 to stop applying pressure to the positioning end 120 when the core disc gap is less than a set distance.

[0080] In the process that the second pressure applying assembly 220 applies pressure to the second positioning end 125, the distance detector 500 continuously detects the core disc gap between the core disc surface 121 and the core disc bearing platform 130 of the second positioning end 125 and transmits to the controller 400, the controller 400 judges whether the core disc gap is less than the set distance, and controls the first hydraulic cylinder 212 and the second hydraulic cylinder 214 of the first pressure applying assembly 210 to stop working and controls the second pressure applying assembly 220 to stop applying pressure to the second positioning end 125 when the core disc gap is less than the set distance.

[0081] When the heart disc gap between the heart disc surface 121 and the heart disc support platform 130 is less than the set distance, it indicates that the twisting process of the first positioning end 123 has ended, and the current degree of twisting of the first positioning end 123 has met the requirements.

[0082] In the process of applying pressure to the second positioning end 125 by the second pressure applying assembly 220, a local heating method can be used simultaneously to improve the deformation of the entire weight structure. The heating area is arranged on the side of the first positioning end 123 close to the girder structure 110, and the heating area part is more than one third of the width of the entire weight structure. In the heating process, a lower cover plate can be arranged in the heating area, and the lower cover plate is heated. The heating length of the lower cover plate is not more than 1 / 3 of the width of the lower cover plate. After the heart disc gap is adjusted to meet the requirements, the first pressure applying assembly 210 and the second pressure applying assembly 220 stop working, and the heating action is also stopped. The first pressure applying assembly 210 and the second pressure applying assembly 220 maintain the current pressure value until the girder structure 10 cools to room temperature.

[0083] In summary, the twisting system 20 provided by the embodiment needs to adjust the positioning end 120 which needs to be twisted and deformed to be placed on the fixed seat 322, that is, the fixed seat 322 is arranged below the positioning end 120. The first clamping part 324 and the second clamping part 326 respectively clamp the positioning end 120 from both sides of the positioning end 120 to fix the positioning end 120. The pressure applying mechanism 200 moves downward from above the positioning end 120 to contact the positioning end 120, applies downward pressure to the positioning end 120, and makes the positioning end 120 deform to reduce the heart disc gap.

[0084] The positioning end 120 which does not need to be twisted and deformed is arranged in the fixed cavity 316, that is, the fixed cavity 316 is arranged around the positioning end 120, and the positioning end 120 is clamped from all around to improve the fixing effect of the positioning end 120.

[0085] Second Embodiment

[0086] Please refer to Figure 9 The embodiment provides a twisting method of the girder structure 10, which is applied to the twisting system 20 in the first embodiment. For brief description, the embodiment does not mention the places which can be referred to the first embodiment.

[0087] The steps of the twisting method of the girder structure 10 are as follows:

[0088] In step S100, the heart disc gap between the heart disc surface 121 and the corresponding heart disc support platform 130 is obtained.

[0089] The heart disc gap can be detected by a distance sensor, which can be installed on the heart disc surface 121 or the heart disc support platform 130 to detect the heart disc gap between the two.

[0090] Step S200, judge whether the heart disc gap is greater than or equal to the set distance.

[0091] After receiving the heart disc gap, judge whether the heart disc gap is greater than or equal to the set distance, wherein the set distance is 1.2mm. It can be set when the tuning system 20 is factory, or it can be set by the user according to different beam structures 10.

[0092] Step S300, if the heart disc gap is greater than or equal to the set distance, the other positioning end 120 is arranged in the fixed cavity 316, the second clamping part 320 fixes the positioning end 120 whose heart disc gap is greater than or equal to the set distance, and the first pressing assembly 210 is controlled to apply pressure to the cantilever assembly 314 to fix the positioning end 120 arranged in the fixed cavity 316, and the second pressing assembly 220 is controlled to apply pressure to the second clamping part 320 corresponding to the positioning end 120 to adjust the heart disc gap between the heart disc surface 121 corresponding to the positioning end 120 fixed by the second clamping part 326 and the heart disc support 130.

[0093] In this embodiment, during the process that the second pressing assembly 220 applies pressure to the second positioning end 125, the local heating method can be used at the same time to improve the deformation of the entire weight structure. The heating area to be heated is arranged on the side of the first positioning end 123 close to the beam structure 110, and the heating area part is more than one third of the width of the entire weight structure. During the heating process, the lower cover plate can be arranged in the heating area to be heated, and the lower cover plate is heated, and the heating length of the lower cover plate is not more than 1 / 3 of the width of the lower cover plate.

[0094] Step S400, if the heart disc gap is greater than or equal to the set distance, control the first pressing assembly 210 to stop applying pressure to the cantilever assembly 314, and control the second pressing assembly 220 to stop applying pressure to the positioning end 120.

[0095] In this embodiment, during the process that the second pressing assembly 220 applies pressure to the second positioning end 125, the distance detector 500 continuously detects the heart disc gap between the heart disc surface 121 of the second positioning end 125 and the heart disc support 130, and transmits to the controller 400. The controller 400 judges whether the heart disc gap is less than the set distance, and controls the first hydraulic cylinder 212 and the second hydraulic cylinder 214 of the first pressing assembly 210 to stop working under the condition that the heart disc gap is less than the set distance, and controls the second pressing assembly 220 to stop pressing the second positioning end 125.

[0096] When the center plate gap between center plate surface 121 and center plate support 130 is less than the set distance, the twist adjustment process of first positioning end 123 has been completed, and the current twist of first positioning end 123 meets the specified requirements. After the center plate gap is adjusted to meet the requirements, the first pressure assembly 210 and the second pressure assembly 220 stop working, and the fire-warming action is also stopped. The first pressure assembly 210 and the second pressure assembly 220 maintain the current pressure value until the center beam structure 10 cools to room temperature.

[0097] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

Claims

1. A torsion adjustment fixture for fixing the center beam structure in the box beam of a railway freight car, the center beam structure comprising: The center beam is composed of two positioning ends and two center plate caps, the two positioning ends are respectively connected to the two ends of the center beam, each positioning end is provided with a center plate surface, and one center plate cap is connected to one center plate surface. It is characterized in that the torsion adjustment fixture includes: A first clamping member includes a base and a cantilever assembly, wherein the base and the cantilever assembly are connected to form a fixing cavity, and the fixing cavity is used to fix one of the positioning ends; The second clamping member includes a fixing seat, a first clamping portion, and a second clamping portion, wherein the fixing seat is used to accommodate the other positioning end, and the first clamping portion and the second clamping portion respectively fix the positioning end from the side of the other positioning end to adjust the center plate gap between the center plate surface corresponding to the positioning end fixed by the second clamping portion and the center plate base; The cantilever assembly includes a first cantilever section, a main arm section and a second cantilever section. The first cantilever section and the second cantilever section are respectively connected to two ends of the main arm section. The main arm section and the base form the fixing cavity.

2. The torque adjustment fixture according to claim 1, characterized in that: The main arm section includes a main body, a first connecting section and a second connecting section. The first cantilever section and the second cantilever section are respectively connected to the two ends of the main body. The first connecting section and the second connecting section are arranged at intervals on the main arm section. The first connecting section and the second connecting section are both connected to the base. The first connecting section, the main arm section, the second connecting section and the base form the fixed cavity.

3. The torque adjustment fixture according to claim 2, characterized in that: The first connecting section and the second connecting section are both detachably connected to the base via a pin.

4. The torque adjustment fixture according to claim 1, characterized in that: The cantilever assembly and the base are covered on the positioning end.

5. The torque adjustment fixture according to claim 1, characterized in that: The fixing seat is arranged below the positioning end.

6. The torque adjustment fixture according to claim 5, characterized in that: The first clamping portion includes a first bracket and a first driving cylinder. The first driving cylinder is mounted on the first bracket. The first driving cylinder can move relative to the first bracket to abut against the positioning end.

7. The torque adjustment fixture according to claim 5, characterized in that: The second clamping portion includes a second bracket and a second driving cylinder. The second driving cylinder is mounted on the second bracket. The second driving cylinder can move relative to the second bracket to abut against the positioning end.

8. A torque adjustment system, characterized in that: It comprises a pressure-applying mechanism and the torque-adjusting clamp according to any one of claims 1 to 7, wherein the pressure-applying mechanism is arranged above the torque-adjusting clamp and is used to apply pressure to the second clamping member corresponding to the positioning end.

9. The torque adjustment system according to claim 8, characterized in that: The pressure mechanism includes a first pressure component and a second pressure component. The first pressure component is used to apply pressure to the cantilever component to fix the positioning end set in the fixed cavity. The second pressure component is used to apply pressure to the positioning end corresponding to the second clamping member to adjust the core disk gap between the core disk surface corresponding to the positioning end fixed by the second clamping part and the core disk base.

10. The torque adjustment system according to claim 9, characterized in that: The torque adjustment system also includes a controller and a distance detector. The distance detector is used to detect the center disk gap between the center disk base and the center disk surface corresponding to the positioning end fixed by the second clamping member. The controller is used to control the first pressure component to stop applying pressure to the cantilever component and control the second pressure component to stop applying pressure to the positioning end under the condition that the center disk gap is less than a set distance.

11. The torque adjustment system according to claim 9, characterized in that: The first pressure-applying assembly is arranged above the cantilever assembly, and the second pressure-applying assembly is arranged above the second clamping member.

12. A method for adjusting the torsion of a center beam structure, applied to the torsion adjustment system according to any one of claims 9 to 11, to adjust the center plate gap between the center plate surface and the center plate cap of the center beam structure, characterized in that: The torsion adjustment method of the center beam structure includes: Obtaining a center plate gap between the center plate surface and the corresponding center plate cap; Determining whether the center-disk gap is greater than or equal to a set distance; If the center disc gap is greater than or equal to the set distance, the other positioning end is set in the fixed cavity, the second clamping member fixes the positioning end with the center disc gap greater than or equal to the set distance, and controls the first pressure-applying assembly to apply pressure to the cantilever assembly to fix the positioning end set in the fixed cavity, and controls the second pressure-applying assembly to apply pressure to the positioning end corresponding to the second clamping member to adjust the center disc gap between the center disc surface corresponding to the positioning end fixed by the second clamping part and the center disc base.

13. The method for adjusting the torsion of the center beam structure according to claim 12, characterized in that: After the steps of controlling the first pressure-applying assembly to apply pressure to the cantilever assembly and controlling the second pressure-applying assembly to apply pressure to the second clamping member corresponding to the positioning end, the torsion adjustment method of the center beam structure further includes: If the center disk gap is smaller than the set distance, the first pressure component is controlled to stop applying pressure to the cantilever component, and the second pressure component is controlled to stop applying pressure to the positioning end.

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