Cantilever crane beam for industrial factory building and wall-mounted cantilever crane system

Abstract

The invention relates to a cantilever crane beam for an industrial factory building and a wall-mounted cantilever crane system. The cantilever crane beam comprises a stand column supporting frame; the reverse prestress mechanism comprises a supporting truss, an upper steel plate, a lower steel plate and two layers of prestress cables, the supporting truss is connected between the two adjacent stand column supporting frames, the upper steel plate and the lower steel plate are arranged at the top and the bottom of the supporting truss respectively, the two layers of prestress cables penetrate through the supporting truss between the upper steel plate and the lower steel plate, and the two ends of the two layers of prestress cables are anchored to the two adjacent stand column supporting frames; the two ends of the first crane beam are welded and fixed to the supporting platform, the upper flange and the lower flange of the first crane beam are welded and connected with the upper steel plate and the lower steel plate respectively, and one side of a web is welded and fixed to the supporting truss; one end of each cantilever crane beam is fixedly welded with the other side of the web of the first crane beam, and the other end of each cantilever crane beam is vertically welded with an H-shaped short beam downwards. Reverse bending moment is applied to the supporting truss through the reverse prestress mechanism, deformation of the supporting truss is reduced, and the bearing capacity of the whole structure is improved.

Description

Technical Field

[0001] The invention relates to the field of industrial plant crane equipment, and in particular to a cantilever crane beam and a wall-mounted cantilever crane system used in industrial plants. Background Art

[0002] The existing cantilever crane beam is equipped with a cantilever crane beam on the web of the first crane beam, which will cause the first crane beam to be always subjected to bending moment, making the structural danger increased. Usually, the phenomenon of bending moment generated by the cantilever crane beam on the first crane beam is alleviated by welding a rigid truss on the flange of the first crane beam to coordinately bear the bending moment. Although this method of increasing the overall resistance to bending moment by increasing the overall stiffness of the first crane beam can bear more bending moments generated by the cantilever crane beam during operation, the two ends of the steel truss will produce greater stress concentration when subjected to bending moment, thus causing safety hazards.

[0003] In addition, during the operation of cranes and cantilever cranes, the different positions of the cranes will cause different stresses on the upper and lower flanges of the cantilever crane beams, and different cantilever crane beams will be subject to different loads. If the load is too heavy or unevenly distributed, the cantilever crane beam may bend or deform, which will affect the safe operation of the crane and may also pose a threat to the overall safety of the plant structure.

[0004] Therefore, it is particularly important to propose a new cantilever crane beam with stronger bearing capacity and better adaptability to complex mechanical conditions. Summary of the invention

[0005] In view of the deficiencies in the prior art, the main purpose of the present invention is to provide a cantilever crane beam for industrial plants to solve the problem of improving the bearing capacity of the crane beam in the prior art.

[0006] The technical solution of the present invention is as follows:

[0007] The present invention provides a cantilever crane beam for industrial plants, comprising:

[0008] A column support frame, wherein the column support frame is provided with a support platform extending outwardly at a first height position thereof;

[0009] The reverse prestressed mechanism comprises a support truss, an upper steel plate, a lower steel plate and two layers of prestressed cables, wherein the support truss is arranged between two adjacent column support frames and is connected and fixed to the two adjacent column support frames, the upper steel plate and the lower steel plate are respectively arranged at the top and bottom of the support truss and are welded to the support truss, and the two layers of prestressed cables are passed through the support truss between the upper steel plate and the lower steel plate, and the two ends thereof are correspondingly anchored to the two adjacent column support frames;

[0010] The first crane beam is an H-shaped or I-shaped steel beam, which is arranged on at least one side of the column support frame, and its two ends are welded and fixed to the corresponding support platform, and the upper and lower flanges of the first crane beam are respectively welded to the upper steel plate and the lower steel plate, and the inner side of the web is welded and fixed to the support truss;

[0011] Multiple cantilever crane beams are H-shaped or I-shaped steel beams, which are evenly arranged along the length direction of the first crane beam, and one end of the multiple cantilever crane beams is welded and fixed to the outer side of the web of the first crane beam, and the other end is vertically welded with an H-shaped short beam downward.

[0012] Preferably, each of the cantilever crane beams has a first cantilever H-shaped arm symmetrically welded to the upper and lower flanges at one end close to the first crane beam, and the upper flange of the first cantilever H-shaped arm located at the upper flange of the cantilever crane beam is welded and fixed to the upper flange of the first crane beam, and the lower flange of the first cantilever H-shaped arm located at the lower flange of the cantilever crane beam is welded and fixed to the lower flange of the first crane beam.

[0013] Preferably, a second cantilever H-shaped arm is welded at the connecting inflection point of each cantilever crane beam and the H-shaped short beam, the end of the second cantilever H-shaped arm is welded and fixed to the flange of the H-shaped short beam, and the upper flange of the second cantilever H-shaped arm is welded and fixed to the lower flange of the cantilever crane beam.

[0014] Preferably, at least one connecting beam is provided between two adjacent H-shaped short beams of the cantilever crane beam, a stiffening rib plate is welded on the web of the H-shaped short beam, and both ends of the connecting beam are welded to the stiffening rib plates of the two adjacent H-shaped short beams and do not contact the web of the H-shaped short beam.

[0015] Preferably, the bottom of the upper steel plate and the top of the lower steel plate are both vertically welded with multiple perforated stiffening ribs II in the transverse direction, wherein the prestressed cables of the upper layer are stretched and anchored downward through the holes of the multiple perforated stiffening ribs II of the upper steel plate to apply tension to the supporting trusses, and the prestressed cables of the lower layer are stretched and anchored upward through the holes of the multiple perforated stiffening ribs II of the lower steel plate to apply pressure to the supporting trusses.

[0016] Preferably, a plurality of prestressed holes are provided at both ends of the upper steel plate and the lower steel plate to dissipate stress concentration at the end portions of the upper steel plate and the lower steel plate.

[0017] Preferably, a plurality of T-shaped stiffening ribs are vertically welded on the inner side of the web of the first crane beam, the plurality of T-shaped stiffening ribs correspond one to one with the plurality of cantilever crane beams, and a stiffening rib plate three is welded to the upper and lower flanges of each cantilever crane beam corresponding to the web of each T-shaped stiffening rib.

[0018] Preferably, the supporting truss comprises a plurality of internal diagonal braces, each of which is A-shaped, and the plurality of A-shaped diagonal braces correspond one-to-one to the plurality of T-shaped stiffening ribs. A connecting plate is welded to the flange of each T-shaped stiffening rib corresponding to the three stiffening rib plates, and the end of each A-shaped diagonal brace is welded and fixed to the connecting plate, and the bottom is welded and fixed to the supporting truss.

[0019] Preferably, the cantilever crane beam further comprises a plurality of groups of light sensing warning devices, the plurality of groups of light sensing warning devices correspond one to one to the plurality of cantilever crane beams, and each group of light sensing warning devices comprises:

[0020] Two photosensitive signal receiving plates, the two photosensitive signal receiving plates are arranged along the same longitudinal section of the cantilever crane beam, and one of the photosensitive signal receiving plates is arranged at the top of the cantilever crane beam, and the other photosensitive signal receiving plate is suitable for being arranged at a predetermined position above one of the photosensitive signal receiving plates according to the deformation limit of the cantilever crane beam;

[0021] A photosensitive signal transmitting device is coaxially arranged on the cantilever crane beam with one of the photosensitive signal receiving boards, and is suitable for transmitting a light signal, and the light signal is suitable for being received by one of the photosensitive signal receiving boards when the cantilever crane beam is in a normal state, and deviating from one of the photosensitive signal receiving boards when the cantilever crane beam is in a deformed state, and not being received by the other photosensitive signal receiving board, thereby triggering one alarm, or being received by the other photosensitive signal receiving board, thereby triggering two alarms.

[0022] The present invention also provides a wall-mounted cantilever crane system for industrial plants, comprising:

[0023] The cantilever crane beam mentioned above, wherein a plurality of H-shaped short beams of the cantilever crane beams are welded with an H-shaped track beam corresponding to the length direction of the first crane beam, and the H-shaped track beam is provided with a first track;

[0024] The second crane beam is an H-shaped or I-shaped steel beam, the column support frame is provided with a support platform extending outward at a second height position, the second height is lower than the first height, both ends of the second crane beam are welded and fixed to the corresponding support platform, and the second crane beam is provided with a second track;

[0025] One end of the crane body is slidably arranged on the first track, and the other end is slidably arranged on the second track.

[0026] The beneficial effects of the present invention relative to the prior art are:

[0027] The cantilever crane beam proposed in the present invention utilizes two layers of prestressed cables to apply tension and pressure to the upper and lower steel plates respectively, and finally applies a reverse bending moment to the supporting truss to offset the bending moment exerted on the first crane beam and the cantilever crane beam, reduce their deformation, and thereby improve the bearing capacity of the overall structure.

[0028] The present invention symmetrically welds a first cantilever H-shaped haunch on the upper and lower flanges of one end of multiple cantilever crane beams close to the first crane beam, which can help the cantilever crane beam share the tension and pressure generated by the crane and the cantilever crane during operation, thereby improving the bearing capacity of the cantilever crane beam.

[0029] The present invention welds a second cantilever H-shaped haunch at the connecting inflection point between the cantilever crane beam and the H-shaped short beam, which can effectively enhance the bearing capacity of the node.

[0030] The present invention arranges a connecting beam between the H-shaped short beams of two adjacent cantilever crane beams to connect the multiple cantilever crane beams into a whole, thereby ensuring that the load generated during the operation of the crane is evenly distributed to the remaining cantilever crane beams, thereby preventing a certain crane beam from being subjected to excessive pressure, helping to extend the service life of the cantilever crane beam and improving the stability of the entire structure.

[0031] The invention provides a plurality of prestressed holes at both ends of the upper and lower steel plates of the supporting truss, so as to dissipate the stress concentration generated at the two ends of the steel plates.

[0032] The present invention welds an "A"-shaped diagonal brace at the T-shaped stiffening rib of the first crane beam welded with the cantilever crane beam, and then connects it to the supporting truss by welding, thereby increasing the force transmission path, improving the bearing capacity of the first crane beam, and enhancing its structural integrity.

[0033] The present invention arranges a light-sensing warning device on the cantilever crane beam. When the cantilever crane beam is overloaded and causes a certain vertical deformation or lateral deformation, one of the light-sensing signal receiving boards loses the light-sensing signal, and the other light-sensing signal receiving board receives or loses the light-sensing signal according to the deformation situation, thereby triggering two or one alarm, and timely warning the cantilever crane beam of excessive deformation due to excessive load.

[0034] It should be understood that the contents described in the Summary of the Invention section are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easy to understand through the following description. In addition, the implementation of any embodiment of the present invention does not mean that multiple or all of the above-mentioned beneficial effects must be possessed or achieved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0036] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0037] Figure 1 It is a schematic diagram of the overall structure of a cantilever crane beam used in an industrial plant according to some embodiments of the present invention;

[0038] Figure 2 A schematic diagram of a first crane beam connected to a cantilever crane beam in some embodiments of the present invention;

[0039] Figure 3 A schematic diagram of a light-sensing warning device for warning of deformation of a cantilever crane beam according to some embodiments of the present invention;

[0040] Figure 4 Schematic diagram of the supporting truss structure of some embodiments of the present invention;

[0041] Figure 5 It is a schematic diagram of the connection between the reverse prestressing mechanism and the supporting truss in some embodiments of the present invention;

[0042] Figure 6 It is a schematic diagram of the connection between the support truss and the first crane beam in some embodiments of the present invention;

[0043] Figure 7 A diagram showing a change in bending moment before and after prestressing of the first crane beam in some embodiments of the present invention;

[0044] Figure 8 A geometric simulation diagram of a wall-mounted cantilever crane system for an industrial plant according to some embodiments of the present invention;

[0045] Fig. 9 It is a partial schematic diagram of a wall-mounted cantilever crane system for industrial plants according to some embodiments of the present invention.

[0046] Markings in the figure:

[0047] 1-column support frame; 101-support platform; 2-first crane beam; 3-cantilever crane beam; 4-H-shaped short beam; 6-reverse prestressed mechanism; 601-support truss; 6011-edge support; 6012 end support; 6013-internal diagonal brace; 602-upper steel plate; 603-lower steel plate; 604-prestressed cable; 605-prestressed cable anchor support; 606-anchor; 7-first cantilever H-shaped Haunch; 8-second cantilever H-shaped haunch; 9-connecting beam; 10-stiffening rib plate one; 11-stiffening rib plate two with holes; 12-prestressed hole; 13-T-shaped stiffening rib; 14-stiffening rib plate three; 15-connecting plate; 16-photosensitive signal receiving board; 17-photosensitive signal transmitting device; 18-second crane beam; 1801-second track; 19-crane body; 20-H-shaped track beam; 2001-first track.

[0048] The same or corresponding symbols in the drawings indicate the same or corresponding parts. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the embodiments and drawings. Here, the illustrative embodiments of the present invention and their description are used to explain the present invention, but are not intended to limit the present invention.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] It should be understood that the terms "include / comprise", "consist of..." or any other variations are intended to cover non-exclusive inclusion, so that a product, device, process or method that includes a series of elements includes not only those elements, but also may include other elements not explicitly listed when necessary, or also includes elements inherent to such product, device, process or method. In the absence of more restrictions, the elements defined by the sentence "include / comprise...", "consist of..." do not exclude the presence of other identical elements in the product, device, process or method that includes the elements.

[0052] It is also necessary to understand that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device, component or structure must have a specific direction, be constructed or operate in a specific direction, and should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] The implementation of the present invention is described in detail below in conjunction with preferred embodiments.

[0055] like Figures 1 to 6 As shown, the present invention proposes a cantilever crane beam for industrial plants, wherein the cantilever crane beam comprises a column support frame 1, a first crane beam 2, a cantilever crane beam 3 and a reverse prestressing mechanism 6.

[0056] It is easy to understand that the factory building here generally refers to a factory building with a cantilever crane beam.

[0057] The column support frame 1 is a structural support, which is specifically composed of four columns made of steel tube concrete as the main supporting elements. These columns are enclosed with each other in layout, and adjacent columns are connected by welded round tube steel trusses to form an overall stable frame that can provide strong supporting force.

[0058] See also Figure 1 There are three column support frames 1 arranged in the same row, and each column support frame 1 is provided with a support platform 101 extending outward along the first height for erecting the first crane beam 2. The support platform 101 of the present invention is a rigid support platform enclosed and welded by multiple steel plates into a box-shaped space.

[0059] In the present invention, the number of column support frames 1 can be two, three or more, which is determined by the depth of the industrial plant in actual application, and is not limited by the present invention. The first height is also determined by the specific hoisting height required at the construction site.

[0060] The cross-sectional dimensions of the column support frame 1 along its height direction of the present invention can be the same, or the cross-sectional dimensions of the column support frame 1 below the support platform 101 can be designed to be larger, and the cross-sectional dimensions of the column support frame 1 above the support platform 101 can be designed to be smaller according to the stress conditions, which can reduce the amount of material used, thereby reducing the material cost of the entire support frame.

[0061] Continue to see Figure 1 The first crane beam 2 is an H-shaped or I-shaped steel beam. The first crane beam 2 is horizontally overlapped on the support platform 101 of the three column support frames 1 along the first height, and the lower flange of the first crane beam 2 is welded and fixed to the support platform 101.

[0062] See also Figure 2 The cantilever crane beam 3 is an H-shaped or I-shaped steel beam. There are multiple cantilever crane beams 3, which are longitudinally arranged on the outside of the first crane beam 2 and evenly arranged along its length. One end of the multiple cantilever crane beams 3 is welded and fixed to the web of the first crane beam 2, and the other end is vertically welded and fixed with an H-shaped short beam 4 downward. In the present invention, the cantilever crane beam 3 uses the track beam arranged on the H-shaped short beam 4 to install the crane (crane) to transport the goods.

[0063] See also Figure 3 The upper and lower flanges of each cantilever crane beam 3 near the first crane beam 2 are symmetrically welded with a first cantilever H-shaped haunch 7. The upper flange of the first cantilever H-shaped haunch 7 located at the upper flange of the cantilever crane beam 3 is welded and fixed to the bottom surface of the upper flange of the first crane beam 2, and the lower flange is welded and fixed to the lower flange of the cantilever crane beam 3. The upper flange of the first cantilever H-shaped haunch 7 located at the lower flange of the cantilever crane beam 3 is welded and fixed to the lower flange of the cantilever crane beam 3, and the lower flange is welded and fixed to the top surface of the lower flange of the first crane beam 2.

[0064] In the present invention, the first cantilever H-shaped axils 7 located on the upper and lower sides of the cantilever crane beam 3 jointly bear the tension and pressure of the cantilever crane beam 3, which can more effectively disperse and resist the external force, reduce the deformation of the cantilever crane beam 3, and extend the service life. At the same time, the force transmission area of ​​the cantilever crane beam 3 is increased, stress concentration is prevented, and the flange of the first crane beam is indirectly strengthened.

[0065] In a specific embodiment, taking the first cantilever H-shaped haunch 7 located at the upper flange of the cantilever crane beam 3 as an example, the length of the lower flange plate of the first cantilever H-shaped haunch 7 is longer than the upper flange plate, the web is a right-angle trapezoidal plate, and the side of the web that is the hypotenuse is arranged toward one side of the cantilever crane beam 3. It is easy to understand that the first cantilever H-shaped haunch 7 located at the lower flange of the cantilever crane beam 3 is symmetrically arranged with the first cantilever H-shaped haunch 7 located at the upper flange of the cantilever crane beam 3, and the present invention will not be specifically elaborated.

[0066] In some embodiments, see Figure 3 The second cantilever H-shaped haunch 8 is welded at the connecting inflection point of each cantilever crane beam 3 and the H-shaped short beam 4, that is, the connecting corner of the cantilever crane beam 3 and the H-shaped short beam 4. The end of the second cantilever H-shaped haunch 8 is welded and fixed to the flange of the H-shaped short beam 4, and the upper flange of the second cantilever H-shaped haunch 8 is welded and fixed to the lower flange of the cantilever crane beam 3. The second cantilever H-shaped haunch 8 is used to enhance the rigidity of the connection node between the cantilever crane beam 3 and the H-shaped short beam 4, reduce the deformation and vibration of the structure, improve the bearing capacity of the cantilever crane beam 3, and use the flange of the H-shaped haunch to strengthen the cross-section of the cantilever crane beam, increase the force transmission area, and reduce stress concentration.

[0067] The specific structure of the second cantilever H-shaped haunch 8 in the present invention is exactly the same as the first cantilever H-shaped haunch 7 located at the lower flange of the cantilever crane beam 3. The second cantilever H-shaped haunch 8 is arranged at the bottom of the cantilever crane beam 3 along the length direction of the cantilever crane beam 3, and the second cantilever H-shaped haunch 8 is welded and fixed to the lower flange of the cantilever crane beam 3 by its upper flange, and one end of its web which is a right-angle side is welded and fixed to the flange of the H-shaped short beam 4.

[0068] In some embodiments, see Figure 2 At least one connecting beam 9 is provided between the H-shaped short beams 4 of two adjacent cantilever crane beams 3, which is used to connect multiple cantilever crane beams 3 into a whole, ensure that the load generated during the operation of the crane is evenly distributed to the remaining cantilever crane beams 3, alleviate the uneven force during the operation of the crane, thereby avoiding a certain crane beam from being subjected to excessive pressure, which helps to extend the service life of the cantilever crane beam and improve the stability of the entire structure.

[0069] In the present invention, when the connecting beam 9 is specifically connected, its two ends are not directly welded to the web of the H-shaped short beam 4, or its ends are not connected to the web of the H-shaped short beam 4, but a stiffening plate is welded on the web of the H-shaped short beam 4, and the two ends of the connecting beam 9 are welded and fixed to the stiffening plate. In this way, the out-of-plane buckling deformation of the web of the H-shaped short beam can be effectively prevented, and the load on the surrounding cantilever crane beams can be evenly transferred to the other cantilever crane beams, thereby improving the bearing capacity of the cantilever crane beam.

[0070] Specifically, at least one stiffening rib plate 10 is first welded to the web of the H-shaped short beam 4, and then one end of the connecting beam 9 is welded and fixed to the upper surface of the stiffening rib plate 10 of the H-shaped short beam 4 of an adjacent cantilever crane beam 3, and the other end is welded and fixed to the upper surface of the stiffening rib plate 10 of the H-shaped short beam 4 of another adjacent cantilever crane beam 3.

[0071] In some embodiments, the stiffening rib plate 10 is a rectangular steel plate, which is vertically arranged between the upper and lower flanges of the H-shaped short beam 4 and is welded and fixed to the upper and lower flanges and the web of the H-shaped short beam 4 along its outer edge.

[0072] In some embodiments, two connecting beams 9 are provided between two adjacent cantilever crane beams 3 to make the force transmission more uniform and the force stable. Two upper and lower stiffening ribs 10 are vertically welded on the web of the H-shaped short beam 4, which are respectively welded to one of the connecting beams 9.

[0073] In some embodiments, the connecting beam 9 is in the form of a square steel tube. The square steel tube has good strength, rigidity, compressive strength and bending performance and is suitable for bearing large loads.

[0074] See also Figures 4 to 6 The reverse prestressed structure 6 includes a support truss 601, an upper steel plate 602, a lower steel plate 603 and two layers of prestressed cables 604. The reverse prestressed structure 6 of the present invention uses two layers of prestressed cables 604 to apply tension and pressure to the upper steel plate 602 and the lower steel plate 603, respectively, and finally applies a reverse bending moment to the support truss 601 to offset the bending moment of the first crane beam 2 and the cantilever crane beam 3, reduce their deformation, and improve the bearing capacity of the overall structure.

[0075] See also Figure 4 The support truss 601 is arranged between two adjacent column support frames 1, and is specifically installed on the inner side of the web of the first crane beam. That is, it is arranged opposite to the multiple cantilever crane beams 3. The support truss 601 plays a role in further connecting the first crane beam 2 and the column support frame 1, which can further improve the overall performance of the entire crane beam system.

[0076] In some embodiments, the support trusses 601 are angle steel trusses.

[0077] The supporting truss 601 includes a side support 6011 and an end support 6012. The side support 6011 is arranged opposite to the first crane beam 2, and its two ends are welded and fixed to two adjacent column support frames 1. The end support 6012 is horizontally arranged between the side support 6011 and the first crane beam 2, and one end is welded and fixed to the side support 6011, and the other end is welded and fixed to the first crane beam 2.

[0078] In a specific embodiment, the edge support 6011 includes two long angle steels arranged opposite to each other, the two ends of the two long angle steels are welded and fixed to two adjacent column support frames 1, and a plurality of short angle steels arranged vertically and obliquely are welded between the two long angle steels to reinforce the edge support 6011. It is easy to understand that the distance between the two long angle steels arranged opposite to each other is substantially the same as the height of the web of the first crane beam.

[0079] Continue to see Figure 4, two groups of end supports 6012 are provided, one group of end supports 6012 is arranged at the two ends of the bottom of the upper steel plate 602, that is, the positions where holes are later opened in the upper steel plate 602. The other group of end supports 6012 is arranged at the two ends of the top of the lower steel plate 603, which is also the position where holes are later opened in the lower steel plate 603. And one end of the two groups of end supports 6012 is welded and fixed to the first crane beam 2, and the other end is welded and fixed to the edge support 6011. The two groups of end supports 6012 are used to respectively enhance the bearing capacity of the ends of the upper and lower steel plates, transfer the load of the first crane beam 2, and increase the overall rigidity of the steel truss.

[0080] In some embodiments, each group includes two end supports 6012, and each end support 6012 includes three angle steels. The three angle steels are horizontally arranged in an arrow shape, and the arrow heads are welded and fixed to the first crane beam 2, and the tails are welded and fixed to the long angle steel.

[0081] See also Figure 4 The upper steel plate 602 is arranged at the top of the supporting truss 601 and corresponds to the upper flange of the first crane beam 2. One end of the upper steel plate 602 is welded flush with the upper flange of the first crane beam 2, and the other end is welded to the supporting truss 601. The lower steel plate 603 is arranged at the bottom of the supporting truss 601 and corresponds to the lower flange of the first crane beam 2. One end of the lower steel plate 603 is welded flush with the lower flange of the first crane beam 2, and the other end is welded to the supporting truss 601.

[0082] The present invention uses a support truss 601 to support the upper steel plate 602 and the lower steel plate 603, and cooperates with the steel plates to transmit force. Two groups of prestressed cables 604 are inserted in the support truss 601 between the upper steel plate 602 and the lower steel plate 603, and their two ends are fixed on two adjacent column support frames 1, which are used to apply tension and pressure to the upper and lower steel plates respectively, and finally apply reverse bending moment to the support truss 601 to offset part of the bending moment of the first crane beam 2 and reduce deformation.

[0083] In the present invention, a group of lifting rings or other components for the prestressed cable 604 to pass through can be welded at the bottom of the upper steel plate 602 and the top of the lower steel plate 603 along the length direction of the first crane beam 2, so as to facilitate the passing of the prestressed cable 604 and apply prestress to the steel plate.

[0084] The change of the bending moment before and after the first crane beam 2 is applied with the reverse prestressing mechanism 6 is as follows Figure 7 As shown. The bending moment is assumed to be positive in the counterclockwise direction, and the model is simplified. A preliminary analysis shows that when the first crane beam 2 is not provided with the reverse prestressing mechanism 6, the bending moment on the web is M cantilever (front). After the reverse prestressing mechanism 6 is installed, the first crane beam 2 is subjected to the reverse bending moment of the M prestress, which offsets part of the bending moment caused by the cantilever crane beam 3, so that the bending moment on the web of the first crane beam is reduced to M cantilever (rear).

[0085] See also Figure 5 The bottom of the upper steel plate 602 and the top of the lower steel plate 603 are both welded with multiple perforated stiffening ribs 11 vertically in the transverse direction to improve the bearing capacity of the steel plate, ensure the stability of the steel plate, and facilitate the application of prestress.

[0086] In some embodiments, each perforated stiffening rib plate 11 is provided with a hole (not shown in the figure), and the multiple holes on the multiple perforated stiffening rib plates 11 are arranged in a row, wherein the upper prestressed cable 604 is stretched and anchored downward through the holes of the multiple perforated stiffening rib plates 11 of the upper steel plate 602 to apply tension to the upper support truss 601, and the lower prestressed cable 604 is stretched and anchored upward through the holes of the multiple perforated stiffening rib plates 11 of the lower steel plate 603 to apply pressure to the support truss 601.

[0087] Furthermore, a row of holes arranged on the plurality of perforated stiffening rib plates 11 at the bottom of the upper steel plate 602 is opened along one end close to the first crane beam 2 to facilitate applying tension to the supporting truss 601 .

[0088] Furthermore, a row of holes arranged on the multiple perforated stiffening ribs 11 on the top of the lower steel plate 603 is opened along the end away from the first crane beam to facilitate applying pressure to the supporting truss 601 and improve the overall stiffness of the steel truss.

[0089] In some embodiments, see Figure 4 A plurality of prestressed holes 12 are correspondingly provided at both ends of the upper steel plate 602 and both ends of the lower steel plate 603 to dissipate the stress concentration at the end portions, and facilitate the later maintenance and pipeline line arrangement.

[0090] See also Figure 6 A plurality of T-shaped stiffening ribs 13 are vertically welded to the inner side of the web of the first crane beam 2. The plurality of T-shaped stiffening ribs 13 correspond to the plurality of cantilever crane beams 3 one by one, and a stiffening rib plate 3 14 is welded to the upper and lower flanges of each cantilever crane beam 3 corresponding to the web of each T-shaped stiffening rib 13 to facilitate force transmission and improve the connection strength between the T-shaped stiffening rib 13 and the first crane beam 2.

[0091] In some embodiments, the stiffening rib plate 3 14 is a short rectangular steel plate. The short rectangular steel plate is symmetrically arranged horizontally on the left and right sides of the T-shaped stiffening rib web.

[0092] Continue to see Figure 6The support truss 601 also includes a plurality of internal diagonal braces 6013, each of which is in the shape of "A". The plurality of A-shaped diagonal braces are arranged longitudinally and correspond one to one with the plurality of T-shaped stiffening ribs 13. A connecting plate 15 is welded to the stiffening rib plate 3 14 corresponding to the outer flange of each T-shaped stiffening rib 13. The end of each A-shaped diagonal brace is fixed by welding to the connecting plate 15, and then connected to the T-shaped stiffening rib 13, and the bottom is welded to the support truss 601. More specifically, the bottom of one leg of the A-shaped diagonal brace corresponds to the top angle steel of the support truss 601, and the bottom of the other leg corresponds to the bottom angle steel of the support truss 601.

[0093] In the present invention, the arrangement of multiple A-type diagonal braces can better transfer the load borne by the first crane beam 2 to the supporting truss 601 .

[0094] The A-type diagonal brace of the present invention is connected and fixed to the T-type stiffening rib 13 by a welded connecting plate 15. Before welding the A-type diagonal brace, the A-type diagonal brace is first welded and fixed by the connecting plate 15, and then the connecting plate 15 fixed with the A-type brace is welded to the T-type stiffening rib 13. The design of the connecting plate 15 allows a certain adjustment space between the A-type diagonal brace and the T-type stiffening rib 13 when connected, ensuring the stability and reliability of the connection, and facilitating welding construction, and being able to evenly transfer the force of the T-type stiffening rib 13 to the steel truss.

[0095] In some embodiments, the connecting plate 15 is a short steel strip plate. The short steel strip plate is vertically welded to the outer surface of the flange of the T-shaped stiffening rib. The length of the short steel strip plate is substantially the same as the spacing between the two stiffening rib plates 14 welded to the upper and lower flanges of each cantilever crane beam 3 corresponding to the web of each T-shaped stiffening rib 13.

[0096] In some embodiments, each A-type diagonal brace is welded by two long angle steels and one short angle steel, and the two long angle steels are welded symmetrically up and down, and a short angle steel is welded in the middle of the two long angle steels to connect the two long angle steels to ensure that the entire structure is more stable.

[0097] In some embodiments, the reverse prestressing mechanism 6 further includes a prestressed cable anchor support 605. The prestressed cable anchor support 605 is connected to the column support frame 1 by bolts, and the prestressed cable anchor support 605 is fixed to the column support frame 1 at different positions according to the needs of different prestresses, and different prestresses are applied to the support truss 601 by stretching the prestressed cable 604.

[0098] When installing the reverse prestressed mechanism 6, first connect the prestressed cable anchor support 605 to the column support frame 1 by bolts, pass the prestressed cable 604 smoothly through the reserved holes in the top and bottom steel plate perforated ribs of the supporting truss, and then anchor the end of the prestressed cable 604 to the prestressed cable anchor support 605 by the anchor 606.

[0099] See also Figure 2 , Figure 3 The cantilever crane beam also includes multiple groups of light sensing warning devices, which correspond to multiple cantilever crane beams 3 one by one, that is, one group of light sensing warning devices is installed on each cantilever crane beam 3. The light sensing warning device is used to timely warn the cantilever crane beam 3 of excessive deformation due to excessive load.

[0100] In some embodiments, each set of light-sensing warning devices includes two light-sensing signal receiving boards 16 and a light-sensing signal emitting device 17. The two light-sensing signal receiving boards 16 are arranged along the same longitudinal section, and one of the light-sensing signal receiving boards 16 is arranged at the top of the cantilever crane beam 3. One of the light-sensing signal receiving boards 16 serves as an initial light-sensing signal receiving board. The other light-sensing signal receiving board 16 is suitable for being arranged at a position of a suitable height according to the acceptable deformation limit range of the cantilever crane beam 3. The other light-sensing signal receiving board 16 serves as a deformation subsequent light-sensing signal receiving board. The photosensitive signal transmitting device 17 is coaxially arranged on the cantilever crane beam 3 with one of the photosensitive signal receiving boards 16, and is suitable for transmitting a light signal, and the light signal is suitable for being received by one of the photosensitive signal receiving boards 16 (initial photosensitive signal receiving board) when the cantilever crane beam 3 is in a normal state, and deviates from one of the photosensitive signal receiving boards 16 when the cantilever crane beam 3 is in a lateral deformation state, but is not received by the other photosensitive signal receiving board 16 (deformation subsequent photosensitive signal receiving board), at which time one alarm is triggered; or deviates from one of the photosensitive signal receiving boards 16 when the cantilever crane beam 3 is in a vertical deformation state, but is received by the other photosensitive signal receiving board 16, at which time two alarms are triggered.

[0101] In the present invention, the location of the other photosensitive signal receiving board 16 is determined by the deformation limit of the cantilever crane beam 3 relative thereto calculated by mathematical software. The present invention will not elaborate on this in detail.

[0102] In the present invention, if the alarm sounds at only one place, it can be determined that the cantilever crane beam 3 has undergone lateral deformation, and if the alarm sounds at two places, it can be determined that the cantilever crane beam 3 has undergone axial deformation and has reached the acceptable deformation limit of the cantilever crane beam 3. The present invention can timely warn the cantilever crane beam of excessive deformation due to excessive load according to the alarm.

[0103] It is easy to understand that alarm sensors are installed on one photosensitive signal receiving board 16 and the other photosensitive signal receiving board 16. The alarm sensor on one photosensitive signal receiving board 16 is suitable for automatically triggering the alarm to sound an alarm when the light signal emitted by the photosensitive signal emitting device 17 is not received, and the alarm sensor on the other photosensitive signal receiving board 16 is suitable for automatically triggering the alarm to sound an alarm when the light signal emitted by the photosensitive signal emitting device 17 is received.

[0104] In one specific embodiment, see Figure 2 , one of the photosensitive signal receiving boards 16 of each photosensitive warning device is fixed to the lower part of the first cantilever H-shaped axil web at the top of the cantilever crane beam 3, that is, the lower flange of the first cantilever H-shaped axil 7, and the other photosensitive signal receiving board 16 is fixed to the upper part of the first cantilever H-shaped axil web at the top of the cantilever crane beam 3, that is, the upper flange of the first cantilever H-shaped axil 7. The photosensitive signal emitting device 17 of each photosensitive warning device is fixed to one end of the top of the cantilever crane beam 3 away from one of the photosensitive signal receiving boards 16, and the photosensitive signal emitting device 17 and one of the photosensitive signal receiving boards 16 are arranged along the same axis.

[0105] The present invention also provides a method for installing the cantilever crane beam, comprising the following steps:

[0106] S10: Install the column support frame 1. Specifically, install the columns of at least two column support frames 1 according to the predetermined positions, pour dense concrete, weld round tube steel trusses between adjacent columns, and weld steel plates at a certain height of the column support frame 1 to form a rigid support platform 101 with a box-shaped space.

[0107] S20: Weld and fix the first crane beam 2 on the rigid support platform 101 .

[0108] S30: welding and fixing a plurality of cantilever crane beams 3 on the web of the first crane beam 2 along the length direction of the first crane beam 2 .

[0109] S40: welding one side of the support truss 601 to the web of the first crane beam 2, with the first crane beam 2 serving as a side surface of the support truss 601, and then welding both ends of the support truss 601 to two adjacent column support frames 1.

[0110] S50: Pass the two groups of prestressed cables 604 through the holes of the perforated stiffening rib plates 2 of the two steel plates respectively, and overlap the two steel plates on the top and bottom of the supporting truss 601, then weld and fix one end of the two steel plates to the upper and lower flanges of the first crane beam 2, and weld and fix the other end to the supporting truss 601.

[0111] S60: stretching the two prestressed cables 604 and fixing both ends of the prestressed cables 604 on two adjacent column support frames 1.

[0112] In some embodiments, step S30 also includes symmetrically welding the first cantilever H-shaped haunch 7 on the upper and lower sides of one end of each cantilever crane beam 3 close to the first crane beam 2, and welding the flange of the first cantilever H-shaped haunch 7 to the flange of the first crane beam 2.

[0113] In some embodiments, step S30 further includes welding a second cantilever H-shaped haunch 8 at a connection node between each cantilever crane beam 3 and the H-shaped short beam 4 .

[0114] In some embodiments, step S30 further includes welding a connecting beam 9 between the H-shaped short beams 4 of two adjacent cantilever crane beams 3. Specifically, firstly, a stiffening rib plate 10 is vertically welded on the web of the H-shaped short beam 4, and then both ends of the connecting beam 9 are welded and connected to the stiffening rib plates 10 of the two adjacent H-shaped short beams 4.

[0115] In some embodiments, step S40 further includes welding two long and one short angle steels in "A" shape to form a plurality of A-shaped diagonal braces, and welding one end of the plurality of A-shaped diagonal braces to the first crane beam 2, and the other end to the support truss 601. Specifically, firstly, a T-shaped stiffening rib 13 is welded on the web of the first crane beam 2 at a position corresponding to each cantilever crane beam 3, and then a connecting plate 15 is welded on the outer surface of the flange of the T-shaped stiffening rib 13, and the end of each A-shaped diagonal brace is welded to the connecting plate 15, and the bottom is welded to the support truss 601.

[0116] In some embodiments, in step S50, a plurality of perforated stiffening ribs 11 are first welded on two steel plates, and then the prestressed cable 604 is passed through the holes of the plurality of perforated stiffening ribs 11 on each steel plate, and finally, the two steel plates are overlapped on the top and bottom of the support truss 601 with one side of the plurality of perforated stiffening ribs 11 facing the inside of the support truss 601.

[0117] In some embodiments, step S50 further includes appropriately opening holes at both ends of the two steel plates.

[0118] In some embodiments, in step S60, specifically, the prestressed cable anchor support 605 is first fixed on the column support frame 1 with a suitable height, and after the prestress is safely applied, the two ends of the prestressed cable 604 are anchored on the prestressed cable anchor support 605 through the anchor 606.

[0119] In some embodiments, it also includes S70: installing two photosensitive signal receiving boards 16 in the photosensitive warning device at the first cantilever H-shaped axilla web position on the upper part of the cantilever crane beam 3. Specifically, one of the photosensitive signal receiving boards 16 is installed at the upper part of the web, and the other photosensitive signal receiving board 16 is installed at the lower part of the web. The photosensitive signal transmitting device 17 is installed at the end of the outer side of the cantilever crane beam 3. The photosensitive signal transmitting device 17 is initially aimed at one of the photosensitive signal receiving boards. When the cantilever crane beam 3 is overloaded and causes a certain deformation or lateral deformation, the photosensitive signal transmitting device 17 transmits a light signal to the other photosensitive signal receiving board 16 according to the reflection angle of the light. One of the photosensitive signal receiving boards 16 loses the light signal, and simultaneously triggers two or one alarm.

[0120] It is easy to understand that one alarm here means that the bottom light-sensing signal receiving board loses the light signal, but the top light-sensing signal receiving board does not receive the light signal, so the alarm is only issued at the bottom light-sensing signal receiving board. Two alarms mean that the bottom light-sensing signal receiving board loses the light signal, and then the top light-sensing signal receiving board receives the light signal, so alarms are issued at both the bottom light-sensing signal receiving board and the top light-sensing signal receiving board, that is, two alarms.

[0121] See also Figure 8 The geometric simulation diagram in the red rectangle on the right and Fig. 9 The present invention also proposes a wall-mounted cantilever crane system for industrial plants. The cantilever crane in the wall-mounted cantilever crane system is more flexible and adaptable, and can transport goods quickly and accurately. The boom design of the cantilever crane enables it to make full use of space and greatly expand the scope of operation.

[0122] Specifically, the wall-mounted cantilever crane system includes the cantilever crane beam, the second crane beam 18 and the crane body 19. An H-shaped track beam 20 is welded on the H-shaped short beam 4 of the multiple cantilever crane beams 3 of the cantilever crane beam corresponding to the length direction of the first crane beam 2, and the H-shaped track beam 19 is provided with a first track 2001. The second crane beam 18 is an H-shaped or I-shaped steel beam, and the second crane beam 18 is arranged on the column support frame 1 along the bottom of the first crane beam 2.

[0123] Specifically, the three column support frames 1 are all provided with a support platform 101 extending outward along the second height, and the second crane beam 18 is welded and fixed to the support platform 101 along the second height. It is easy to understand that the second height here is less than the first height. The second crane beam 18 is provided with a second track 1801 along its length direction. One end of the crane body 19 is slidably connected to the first track 2001, and the other end is slidably connected to the second track 1801, which is suitable for lifting goods and sliding on the first track 2001 and the second track 1801.

[0124] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0125] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cantilever crane beam for industrial plants, characterized in that: include: A column support frame, wherein the column support frame is provided with a support platform extending outwardly at a first height position thereof; The reverse prestressed mechanism comprises a support truss, an upper steel plate, a lower steel plate and two layers of prestressed cables, wherein the support truss is arranged between two adjacent column support frames and is connected and fixed to the two adjacent column support frames, the upper steel plate and the lower steel plate are respectively arranged at the top and bottom of the support truss and are welded to the support truss, and the two layers of prestressed cables are passed through the support truss between the upper steel plate and the lower steel plate, and the two ends thereof are correspondingly anchored to the two adjacent column support frames; The first crane beam is an H-shaped or I-shaped steel beam, which is arranged on at least one side of the column support frame, and its two ends are welded and fixed to the corresponding support platform, and the upper and lower flanges of the first crane beam are respectively welded to the upper steel plate and the lower steel plate, and the inner side of the web is welded and fixed to the support truss; Multiple cantilever crane beams are all H-shaped or I-shaped steel beams, which are evenly arranged along the length direction of the first crane beam, and one end of the multiple cantilever crane beams is welded and fixed to the outer side of the web of the first crane beam, and the other end is vertically welded with an H-shaped short beam downward.

2. The cantilever crane beam according to claim 1, characterized in that: The upper and lower flanges of one end of each cantilever crane beam close to the first crane beam are symmetrically welded with a first cantilever H-shaped haunch, and the upper flange of the first cantilever H-shaped haunch located at the upper flange of the cantilever crane beam is welded and fixed to the upper flange of the first crane beam, and the lower flange of the first cantilever H-shaped haunch located at the lower flange of the cantilever crane beam is welded and fixed to the lower flange of the first crane beam.

3. The cantilever crane beam according to claim 1 or 2, characterized in that: A second cantilever H-shaped arm is welded at the connecting inflection point between each cantilever crane beam and the H-shaped short beam, the end of the second cantilever H-shaped arm is welded and fixed to the flange of the H-shaped short beam, and the upper flange of the second cantilever H-shaped arm is welded and fixed to the lower flange of the cantilever crane beam.

4. The cantilever crane beam according to claim 1, characterized in that: At least one connecting beam is arranged between two adjacent H-shaped short beams of the cantilever crane beam, a stiffening rib plate is welded on the web of the H-shaped short beam, and both ends of the connecting beam are welded to the stiffening rib plates of the two adjacent H-shaped short beams and do not contact the web of the H-shaped short beams.

5. The cantilever crane beam according to claim 1, characterized in that: The bottom of the upper steel plate and the top of the lower steel plate are both welded with multiple perforated stiffening ribs II vertically in the transverse direction, wherein the prestressed cables of the upper layer are stretched and anchored downward through the holes of the multiple perforated stiffening ribs II of the upper steel plate to apply tension to the supporting trusses, and the prestressed cables of the lower layer are stretched and anchored upward through the holes of the multiple perforated stiffening ribs II of the lower steel plate to apply pressure to the supporting trusses.

6. The cantilever crane beam according to claim 1, characterized in that Both ends of the upper steel plate and the lower steel plate are provided with a plurality of prestressed holes to dissipate the stress concentration at the end portions of the upper steel plate and the lower steel plate.

7. The cantilever crane beam according to claim 1, characterized in that A plurality of T-shaped stiffening ribs are vertically welded to the inner side of the web of the first crane beam, and the plurality of T-shaped stiffening ribs correspond one to one to the plurality of cantilever crane beams, and a stiffening rib plate three is welded to the upper and lower flanges of each cantilever crane beam corresponding to the web of each T-shaped stiffening rib.

8. The cantilever crane beam according to claim 7, characterized in that The support truss includes multiple internal diagonal braces, each of which is A-shaped. The multiple A-shaped diagonal braces correspond one-to-one to the multiple T-shaped stiffening ribs. The flange of each T-shaped stiffening rib corresponds to the three stiffening rib plates welded with a connecting plate. The end of each A-shaped diagonal brace is welded and fixed to the connecting plate, and the bottom is welded and fixed to the support truss.

9. The cantilever crane beam according to claim 1, characterized in that The cantilever crane beam also includes multiple groups of light sensing warning devices, and the multiple groups of light sensing warning devices correspond to the multiple cantilever crane beams one by one, and each group of light sensing warning devices includes: Two photosensitive signal receiving plates, the two photosensitive signal receiving plates are arranged along the same longitudinal section of the cantilever crane beam, and one of the photosensitive signal receiving plates is arranged at the top of the cantilever crane beam, and the other photosensitive signal receiving plate is suitable for being arranged at a predetermined position above one of the photosensitive signal receiving plates according to the deformation limit of the cantilever crane beam; A photosensitive signal transmitting device is coaxially arranged on the cantilever crane beam with one of the photosensitive signal receiving boards, and is suitable for transmitting a light signal, and the light signal is suitable for being received by one of the photosensitive signal receiving boards when the cantilever crane beam is in a normal state, and deviating from one of the photosensitive signal receiving boards when the cantilever crane beam is in a deformed state, and not being received by the other photosensitive signal receiving board, thereby triggering one alarm, or being received by the other photosensitive signal receiving board, thereby triggering two alarms.

10. A wall-mounted cantilever crane system for industrial plants, characterized in that: include: The cantilever crane beam according to any one of claims 1 to 9, wherein an H-shaped track beam is welded on a plurality of H-shaped short beams of the cantilever crane beams corresponding to the length direction of the first crane beam, and the H-shaped track beam is provided with a first track; The second crane beam is an H-shaped or I-shaped steel beam, the column support frame is provided with a support platform extending outward at a second height position, the second height is lower than the first height, both ends of the second crane beam are welded and fixed to the corresponding support platform, and the second crane beam is provided with a second track; One end of the crane body is slidably arranged on the first track, and the other end is slidably arranged on the second track.

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