CN115770843B - Non-binding connection method for insulating reinforcement cage - Google Patents
Non-binding connection method for insulating reinforcement cage Download PDFInfo
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- CN115770843B CN115770843B CN202211569561.4A CN202211569561A CN115770843B CN 115770843 B CN115770843 B CN 115770843B CN 202211569561 A CN202211569561 A CN 202211569561A CN 115770843 B CN115770843 B CN 115770843B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Abstract
The application discloses a non-binding connection method for an insulating reinforcement cage, which comprises the steps of arranging insulating fasteners between longitudinal reinforcement and transverse reinforcement; and (3) locally thermally fusing the insulating fastener, so that the cooled insulating fastener is fixedly connected to the longitudinal steel bars and the transverse steel bars at the same time. The application provides a non-binding connection method for an insulating reinforcement cage, which solves the technical problems that in the prior art, longitudinal reinforcements and transverse reinforcements of a track slab are connected in a binding mode and are easy to loosen to influence the quality of products, and the purpose that the longitudinal reinforcements and the transverse reinforcements are stably connected through the non-binding technical means and the insulation requirement of the track slab reinforcements is ensured is achieved.
Description
Technical Field
The application relates to the field of track slab production, in particular to a non-binding connection method for an insulating reinforcement cage.
Background
The track slab is a bearing component of a ballastless track, and is a rail lower component which takes a structural type as a slab body, is used for supporting and fixing steel rails and distributing the load transmitted by a train through the steel rails to a substrate below the slab.
In order to bear larger load, in the process of prefabricating the track slab, longitudinal steel bars and transverse steel bars which are distributed in a staggered mode are required to be arranged in a die to form a steel bar net, and then concrete is poured on the basis of the steel bar net, so that the load bearing capacity of the track slab is improved. In addition, as railway signals are transmitted through the steel rails, the steel rails are arranged on the track boards, and insulation among staggered steel bars is required to be ensured in order to avoid electromagnetic induction influence on signal transmission caused by the steel bar meshes inside the track boards.
In the conventional art, the insulation of the reinforcing bars is generally ensured by integrally coating epoxy resin on the surfaces of the reinforcing bars, and then a large number of binding operations are performed between the longitudinal reinforcing bars and the transverse reinforcing bars. Although more automatic binding equipment is arranged for binding the track slab steel bars in the prior art, the operation mode needs to arrange an epoxy resin coating on the surface of the steel bars in advance, and the economic benefit and the engineering efficiency are not ideal.
In addition, the chinese patent with application number 200610020779.9 proposes an "insulated binding method for a mesh reinforcement of a track slab", in which an insulated manner is described in which an insulated spacer is disposed between a longitudinal steel bar and a transverse steel bar, however, the method still needs to use a binding wire or an insulated coating wire to bind a junction point of the longitudinal steel bar and the transverse steel bar, and the insulated spacer is fixed by means of a binding force, which has a great risk of loosening, and cannot guarantee sufficient grip of the steel bar.
Therefore, in the prior art, the steel bar connection mode of the track slab is not separated from the restriction of the inertia of the technology of binding, the loosening problem possibly caused by the binding technology is always present, the impact resistance during the subsequent concrete pouring is weaker, and even the bearing performance of the produced prefabricated track slab is insufficient in serious cases.
Disclosure of Invention
The application provides a non-binding connection method for an insulating reinforcement cage, which solves the technical problems that in the prior art, longitudinal reinforcements and transverse reinforcements of a track slab are connected in a binding mode and are easy to loosen to influence the quality of products, and the purpose that the longitudinal reinforcements and the transverse reinforcements are stably connected through the non-binding technical means and the insulation requirement of the track slab reinforcements is ensured is achieved.
The application is realized by the following technical scheme:
a non-ligating connection method for an insulated steel reinforcement cage, comprising:
an insulating fastener is arranged between the longitudinal steel bars and the transverse steel bars;
and (3) locally thermally fusing the insulating fastener, so that the cooled insulating fastener is fixedly connected to the longitudinal steel bars and the transverse steel bars at the same time.
Aiming at the problem that in the track slab prefabrication process of the ballastless track in the prior art, longitudinal steel bars and transverse steel bars are required to be connected in a binding mode, the application provides a non-binding connection method for an insulating steel bar framework. For prefabrication production of a track slab, arranging longitudinal steel bars and transverse steel bars which are perpendicular to each other in a die is the prior art in the field, and insulating fasteners are arranged between the longitudinal steel bars and the transverse steel bars, namely the insulating fasteners are used for blocking the longitudinal steel bars and the transverse steel bars to achieve the purpose of mutual insulation. The insulating fastener is then locally heat-melted, and the specific heat-melting process may be any heat-melting method in the prior art or a technique capable of heating the insulating fastener to a molten state, which is not particularly limited herein. The insulating fastener is heated to a molten state locally, and can be solidified with the longitudinal steel bars and the transverse steel bars at the same time after being cooled.
The method adopts a hot melting mode, so that the respective fixed connection of the insulating fastener and the longitudinal steel bar and the transverse steel bar can be realized, and the longitudinal steel bar and the transverse steel bar can be solidified into a whole through the insulating fastener which is solidified again after hot melting, thereby realizing the connection of the rail plate steel bars; and because the insulating fastener between the longitudinal steel bar and the transverse steel bar is always present, the insulating requirement between the longitudinal steel bar and the transverse steel bar can be met.
The method thoroughly abandons the technical inertia of the longitudinal steel bars and the transverse steel bars which are bound by silk threads when the track plate of the ballastless track is prefabricated in the prior art, meets the fixing and insulating requirements between the longitudinal steel bars and the transverse steel bars by introducing insulating fasteners and carrying out local hot melting on the insulating fasteners, does not need to coat epoxy resin coating in a large area, further can reduce the cost, and does not need to use manual or mechanical mode for binding. The hot-melt connection mode can ensure the tight combination between the insulating fastener and the steel bars, so that the insulating fastener fully wraps the steel bars, the problems of loose binding, insufficient binding force to the steel bars and the like are thoroughly avoided, the possible loosening or falling-off problem of the binding process is avoided, the impact force resistance of the formed steel bar net or steel bar cage to the subsequent concrete pouring is obviously improved, the possibility of insufficient bearing performance of the track slab caused by loose binding and steel bar dislocation is reduced, and the yield probability of defective products is reduced.
Of course, it should be understood by those skilled in the art that the insulating fastener of the present application should be insulating and be made of a material that can be heat-melted, and is preferably made of a common insulating plastic material. The technological parameters of hot melting are adaptively set by a person skilled in the art according to the specific performance and size of the insulating fastener, the matched size of the reinforcing steel bar and the like, so that the premise that the insulating fastener is in a molten state locally in a short time and meanwhile the reinforcing steel bar is not damaged is satisfied.
Further, the method for arranging the insulating fastener between the longitudinal steel bar and the transverse steel bar comprises the following steps:
installing insulating fasteners on the longitudinal steel bars and/or the transverse steel bars;
the longitudinal steel bars and the transverse steel bars are crossed, and the junction of the longitudinal steel bars and the transverse steel bars is blocked by the insulating fastener.
In this scheme, insulating fastener can install alone on the longitudinal reinforcement, perhaps install alone on horizontal reinforcing bar, perhaps install simultaneously on longitudinal reinforcement and horizontal reinforcing bar, no matter what kind of mode is adopted to install insulating fastener, arrange the back with the crisscross mode at longitudinal reinforcement and horizontal reinforcing bar, by insulating fastener separation in the junction between them to make longitudinal reinforcement and horizontal reinforcing bar indirect contact, with the insulation between the effective assurance two.
Further, the insulating fastener comprises a first insulating piece which can be installed outside the longitudinal steel bars and a second insulating piece which can be installed outside the transverse steel bars; the first insulating piece is fixedly connected or detachably connected with the second insulating piece.
The insulating fastener in this scheme includes first insulating part, second insulating part, and wherein first insulating part can the matcing installation with vertical reinforcing bar, and the second insulating part can the matcing installation with horizontal reinforcing bar. In addition, the first insulating piece and the second insulating piece in the scheme can be integral components fixedly connected, or can be two split components detachably connected. When the two are two independent split components, the first insulating piece and the second insulating piece can be respectively connected with the longitudinal steel bar and the transverse steel bar, and then are in butt joint; when the two are integral components, the first insulating piece/the second insulating piece and the longitudinal steel bar/the transverse steel bar can be matched and installed, and then the transverse steel bar/the longitudinal steel bar and the corresponding second insulating piece/the first insulating piece are installed. It can be seen that the method has higher operability and construction flexibility, and can meet the track slab prefabrication processing under various working conditions and equipment conditions.
The fixed connection and the detachable connection in the scheme can be realized by adopting any existing fixed and detachable modes which can be realized by the person skilled in the art.
Further, when the first insulating member is fixedly connected with the second insulating member, the method for providing the insulating fastener between the longitudinal reinforcing steel bar and the transverse reinforcing steel bar includes:
installing the first insulating piece on the longitudinal steel bars, and enabling the second insulating piece to face the installation direction of the transverse steel bars; the transverse steel bars are connected through the second insulating piece, and are mutually perpendicular to the longitudinal steel bars; or, the second insulating piece is installed on the transverse reinforcing steel bars, and the first insulating piece faces the installation direction of the longitudinal reinforcing steel bars; the longitudinal bars are connected by the first insulating member and are made to be mutually perpendicular to the transverse bars.
When the first insulating piece is detachably connected with the second insulating piece, the method for arranging the insulating fastener between the longitudinal steel bar and the transverse steel bar comprises the following steps:
mounting the first insulating member on the longitudinal reinforcing bars; mounting a second insulating member on the transverse reinforcing bars;
the longitudinal bars and the transverse bars are arranged so that the longitudinal bars and the transverse bars are perpendicular to each other, and the first insulating member and the second insulating member are connected to each other.
Further, when the first insulating member is fixedly connected with the second insulating member, the method for partially heat-melting the insulating fastener includes:
and heating the contact part of the first insulating piece and the longitudinal steel bars and the contact part of the second insulating piece and the transverse steel bars, so that the first insulating piece is fixedly connected to the longitudinal steel bars after cooling, and the second insulating piece is fixedly connected to the transverse steel bars after cooling.
The scheme provides a local hot melting method when the first insulating piece and the second insulating piece are integral components fixed with each other, the method can only enable the first insulating piece to be hot melted and solidified on the longitudinal steel bars and the second insulating piece to be hot melted and solidified on the transverse steel bars, non-binding and insulating connection of the longitudinal steel bars and the transverse steel bars can be completed, hot melting operation is relatively simple, and connection stability is high.
Further, when the first insulating member is detachably connected to the second insulating member, the method for locally heat-melting the insulating fastener includes:
and heating the contact part of the first insulating part and the longitudinal steel bar, the contact part of the second insulating part and the transverse steel bar and the connection part of the first insulating part and the second insulating part, so that the first insulating part is solidified on the longitudinal steel bar after cooling, the second insulating part is solidified on the transverse steel bar after cooling, and the first insulating part and the second insulating part are solidified with each other after cooling.
The scheme provides a local hot melting method when the first insulating piece and the second insulating piece are split-type components, and the method also needs to perform hot melting on the connection part of the first insulating piece and the second insulating piece so as to ensure that the first insulating piece and the second insulating piece which are detachably connected can be fixedly connected into an integral structure after being mutually butted so as to ensure the integrity of an insulating fastener and the connection stability of longitudinal steel bars and transverse steel bars; however, the method has the advantages of relatively simple arrangement of the insulating fastener, more convenient connection process, stronger construction flexibility and operability and the like.
Further, the first insulating part is arranged outside the longitudinal steel bars in a local cladding, sleeving or hot melting mode; the second insulating piece is arranged outside the transverse reinforcing steel bars in a local cladding, sleeving or hot melting mode.
The scheme makes certain limit to the installation modes of the first insulating piece, the second insulating piece, the longitudinal steel bars and the transverse steel bars. The sleeve is integrally sleeved outside the corresponding steel bars in the form of an annular sleeve, the local coating is fastened outside the corresponding steel bars in the form of incomplete arc-shaped members, and the hot melting is fixedly connected outside the corresponding steel bars in a hot melting solidification mode.
A non-ligating connection method for an insulated steel reinforcement cage, comprising:
paving a plurality of longitudinal steel bars on a track slab production line;
the laid longitudinal steel bars are jointly transmitted to a fastener installation station through a transmission device, and insulating fasteners are installed on the longitudinal steel bars;
the longitudinal steel bars are jointly transmitted to a steel bar butt joint station through a transmission device, the transverse steel bars are placed on the longitudinal steel bars, and the insulating fasteners are placed between the longitudinal steel bars and the transverse steel bars;
and the longitudinal steel bars and the placed transverse steel bars are jointly transmitted to a hot melting station through a transmission device, and the insulating fastener is locally hot melted, so that the cooled insulating fastener is simultaneously fixedly connected to the longitudinal steel bars and the transverse steel bars.
The scheme integrates the non-binding insulation connection method for the track slab reinforcing steel bars on the production line of the track slab, and is more beneficial to realizing standardized, large-scale and automatic production. The transmission device may adopt any transmission mode that can be implemented in the prior art, and is not limited herein.
Further, at the fastener installation station, the first mechanical arm grabs the insulating fastener and installs the insulating fastener on the longitudinal steel bar; at the steel bar butt joint station, grabbing transverse steel bars by a second mechanical arm, and placing the transverse steel bars on each longitudinal steel bar; and at the hot melting station, the third mechanical arm drives the hot melting working head to locally heat and melt the insulating fastener.
The corresponding actions of grabbing, placing, moving and the like of the first mechanical arm, the second mechanical arm and the third mechanical arm can be realized by adopting the existing mechanical arm technology and the control technology, and are not described in detail herein.
Compared with the prior art, the application has the following advantages and beneficial effects:
1. according to the non-binding connection method for the insulated steel reinforcement framework, a hot melting mode is adopted to replace a traditional binding process, so that not only can the fixed connection between the insulated fasteners and the longitudinal steel reinforcement and the transverse steel reinforcement be realized, but also the longitudinal steel reinforcement and the transverse steel reinforcement can be solidified into a whole through the insulated fasteners which are re-solidified after hot melting, and the connection of the track slab steel reinforcement is realized; and can meet the insulation requirement between the longitudinal steel bars and the transverse steel bars.
2. According to the non-binding connection method for the insulating reinforcement cage, technical inertia of binding longitudinal reinforcements and transverse reinforcements by silk threads in the process of prefabricating a track plate of a ballastless track in the prior art is thoroughly abandoned, the fixing and insulating requirements between the longitudinal reinforcements and the transverse reinforcements are met by introducing insulating fasteners and carrying out local hot melting on the insulating fasteners, large-area epoxy resin coating is not needed, cost can be reduced, and meanwhile binding by manual or mechanical modes is not needed.
3. The non-binding connection method for the insulating reinforcement cage can ensure the tight combination between the insulating fastener and the reinforcement, so that the insulating fastener fully grips the reinforcement, the problems of loose binding, insufficient grip strength of binding on the reinforcement and the like are thoroughly avoided, the possible loosening or falling-off problem of the binding process is avoided, the impact resistance of the formed reinforcement cage or reinforcement cage to the subsequent concrete pouring is remarkably improved, the possibility of insufficient bearing performance of a track plate caused by loose binding and dislocation of the reinforcement is reduced, and the yield probability of defective products is reduced.
4. The non-binding connection method for the insulated steel reinforcement framework has higher operability and construction flexibility, can meet the track slab prefabrication processing under various working conditions and equipment conditions, and can be integrated on a track slab production line.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is a schematic flow chart of an embodiment of the present application;
FIG. 2 is a schematic diagram of a transmission path according to an embodiment of the present application;
FIG. 3 is a schematic view of an insulating fastener according to an embodiment of the present application;
FIG. 4 is a schematic view showing the connection of the insulating fastener according to the embodiment of the present application;
FIG. 5 is a schematic view of a fastener installation mechanism according to an embodiment of the application;
FIG. 6 is a schematic view of another fastener installation mechanism according to an embodiment of the present application;
fig. 7 is a schematic view of a transverse bar pick-and-place mechanism according to an embodiment of the present application;
FIG. 8 is a schematic view of a hot melt mechanism according to an embodiment of the present application;
FIG. 9 is a schematic view of another thermal fusing mechanism in accordance with an embodiment of the present application;
FIG. 10 is a side view of a hot melt mechanism according to an embodiment of the present application;
FIG. 11 is a schematic diagram of a second heat generating device according to an embodiment of the application;
FIG. 12 is a schematic view of an insulating fastener according to an embodiment of the present application;
FIG. 13 is a front view of a junction of an insulating fastener in accordance with an embodiment of the present application;
FIG. 14 is an enlarged view of a portion of FIG. 13 at A;
fig. 15 is a schematic cross-sectional view of a reinforcement cage in accordance with an embodiment of the present application.
In the drawings, the reference numerals and corresponding part names:
1-transmission device, 2-first insulating part, 3-second insulating part, 4-first mechanical arm, 5-box, 6-fastener storage container, 7-through hole, 8-baffle, 9-absorption part, 10-negative pressure channel, 11-first telescoping device, 12-first heating device, 13-second mechanical arm, 14-third mechanical arm, 15-second heating device, 16-second turntable, 17-second telescoping device, 18-third heating device, 19-first turntable, 20-longitudinal steel bar, 21-transverse steel bar, 151-positioning block, 152-induction device, 153-third telescoping device, 154-heat insulation installation part, 155-first heating coil, 156-second heating coil, 157-third heating coil; the device comprises a 22-edge butt joint piece, a 23-jack, a 24-connecting hole, a 25-notch, a 26-fastening part, a 261-matching structure, a 262-matching structure, a 27-matching groove, a 28-protrusion, a 29-limiting groove, a 30-stress plate, a 31-cambered surface and a 32-fitting part.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present application and the descriptions thereof are for illustrating the present application only and are not to be construed as limiting the present application. In the description of the present application, it should be understood that the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application.
Example 1:
the non-binding connection method for the insulating reinforcement cage is used for realizing non-binding insulating connection of track slab reinforcements of the ballastless track as shown in fig. 1:
firstly, an insulating fastener is arranged between a longitudinal steel bar and a transverse steel bar, and the concrete process is as follows: and installing insulating fasteners on the longitudinal steel bars and/or the transverse steel bars to enable the longitudinal steel bars and the transverse steel bars to be crossed, and blocking the junction of the longitudinal steel bars and the transverse steel bars by the insulating fasteners.
And then, locally thermally fusing the insulating fastener, so that the cooled insulating fastener is fixedly connected with the longitudinal steel bars and the transverse steel bars at the same time.
Wherein, the cooling can be passive natural cooling or active accelerated cooling by adopting a manual or mechanical mode.
Example 2:
the non-binding connection method for an insulated steel reinforcement framework is based on embodiment 1, the insulated fastener of the embodiment comprises a first insulated part 2 and a second insulated part 3, wherein the first insulated part can be installed outside a longitudinal steel reinforcement, and the second insulated part can be installed outside a transverse steel reinforcement.
Preferably, the first insulating member 2 is installed outside the longitudinal steel bar by means of local cladding, sleeving or hot melting; the second insulating part 3 is arranged outside the transverse reinforcing steel bars in a local cladding, sleeving or hot melting mode.
In a more preferred embodiment, the cross sections of the first insulating member 2 and the second insulating member 3 are arranged in a major arc shape. Because the first insulating part and the second insulating part need to be partially coated with the corresponding reinforcing steel bars, the cross section of the first insulating part and the second insulating part is preferably arranged in a major arc shape, so that the first insulating part and the second insulating part can be stably sleeved on the corresponding reinforcing steel bars, and the first insulating part and the second insulating part are prevented from falling off before hot melting and solidification. In addition, the material can be made of plastic materials with better toughness, so that the corresponding reinforcing steel bars can be sleeved from the gaps of the major arc by utilizing the deformation capability of the material even under the major arc.
Example 3:
a non-binding connection method for an insulated steel reinforcement cage is based on embodiment 2, wherein a first insulating member 2 and a second insulating member 3 are fixedly connected.
In this embodiment, the method for providing an insulating fastener between a longitudinal steel bar and a transverse steel bar includes:
installing the first insulating piece on the longitudinal steel bars, and enabling the second insulating piece to face the installation direction of the transverse steel bars; the transverse steel bars are connected through the second insulating piece, and are mutually perpendicular to the longitudinal steel bars;
or alternatively, the first and second heat exchangers may be,
installing the second insulating piece on the transverse steel bars, and enabling the first insulating piece to face the installation direction of the longitudinal steel bars; the longitudinal bars are connected by the first insulating member and are made to be mutually perpendicular to the transverse bars.
In this embodiment, the method for locally heat-melting the insulating fastener includes:
and heating the contact part of the first insulating piece and the longitudinal steel bars and the contact part of the second insulating piece and the transverse steel bars, so that the first insulating piece is fixedly connected to the longitudinal steel bars after cooling, and the second insulating piece is fixedly connected to the transverse steel bars after cooling.
Preferably, the first insulating member 2 and the second insulating member 3 are integrally formed.
Example 4:
a non-binding connection method for an insulated reinforcement cage, based on embodiment 2, in this embodiment, a first insulating member 2 and a second insulating member 3 are detachably connected.
In this embodiment, the method for providing an insulating fastener between a longitudinal steel bar and a transverse steel bar includes: installing a first insulating part on the longitudinal steel bars and installing a second insulating part on the transverse steel bars; the longitudinal bars and the transverse bars are arranged so that the longitudinal bars and the transverse bars are perpendicular to each other, and the first insulating member and the second insulating member are connected to each other.
In this embodiment, the method for locally heat-melting the insulating fastener includes:
and heating the contact part of the first insulating part and the longitudinal steel bar, the contact part of the second insulating part and the transverse steel bar and the connection part of the first insulating part and the second insulating part, so that the first insulating part is solidified on the longitudinal steel bar after cooling, the second insulating part is solidified on the transverse steel bar after cooling, and the first insulating part and the second insulating part are solidified with each other after cooling.
Preferably, the first insulating member 2 and the second insulating member 3 are detachably connected in a fastening, clamping or plugging manner.
Example 5:
on the basis of any one of the above embodiments, as shown in fig. 12, the insulating fastener in this embodiment is that the first insulating member 2 and the second insulating member 3 are connected with each other, any insulating member includes a connecting hole 24 and a notch 25 opened on one side of the connecting hole 24, the axes of the connecting hole 24 of the first insulating member 2 and the second insulating member 3 are perpendicular, two sides of the notch 25 are provided with fastening parts 26 matched with each other, and the first insulating member 2 and the second insulating member 3 are made of insulating materials.
The size of the connecting hole 24 is determined according to the diameter of the steel bar to be fastened by the first insulating member 2 and the second insulating member 3, and the size of the notch 25 is not specifically limited, and may be any, preferably larger than the diameter of the steel bar, so that the corresponding insulating member is conveniently mounted on the steel bar; the fastening mode of the fastening part 26 can adopt bolt connection, buckle connection and the like; since the side walls of the insulating member need to be deformed during the process of fixing the reinforcing bars, the insulating material is preferably plastic having elasticity and a certain hardness.
In a more preferred embodiment, as shown in fig. 13, the fastening portion 26 includes a mating structure 261 and a snap structure 262, the snap structure 262 is fixedly connected to the outer side of the corresponding insulating member, a snap groove 27 is formed between the snap structure 262 and the corresponding insulating member, and the snap groove 27 is matched with the mating structure 261.
Wherein, the thickness of the matching structure 261 is equal to the width of the engaging groove 27, the bending radian is the same, and the length of the matching structure 261 is greater than or equal to the depth of the engaging groove 27; the snap-in structure 262 may be integrally formed by hot melt or by die-forming.
In a more preferred embodiment, as shown in fig. 14, a plurality of protrusions 28 are disposed on the outer side of the mating structure 261, and a plurality of limiting grooves 29 are disposed on the side wall of the engaging groove 27, where the protrusions 28 are in one-to-one correspondence with the limiting grooves 29.
The number, thickness, and interval between the adjacent two projections 28 may be arbitrary, and the width of the engaging groove 27 is greater than or equal to the thickness of the projections 28, the number of engaging grooves 27 is less than or equal to the number of projections 28, and the interval between the adjacent two engaging grooves 27 is the same as the interval between the adjacent two projections 28.
In a more preferred embodiment, the side of the protrusion 28 facing the engagement recess 27 is beveled, and the thickness of the upper end of the protrusion 28 is smaller than the thickness of the bottom. The inclination angle of the inclined surface is an acute angle, preferably 45 degrees.
In a more preferred embodiment, the rear end of the mating structure 261 is provided with a force plate 30. The force plate 30 is sized to be able to press a finger.
In a more preferred embodiment, the force-bearing plate 30 and the outside of the snap-in structure 262 are provided with anti-slip structures. The anti-slip structure can be anti-slip stripes, rubber pads and the like.
In a more preferred embodiment, the end surface of the mating structure 261 is provided as a cambered surface 9.
In a more preferred embodiment, the insulation structure further comprises a fitting portion 32 located inside the fitting structure 261, the fitting portion 32 is fixedly connected with the corresponding insulation piece, and the radian of the inner side surface of the fitting portion 32 is the same as that of the connecting hole 24.
Example 6:
a non-ligating connection method for an insulated steel reinforcement cage, comprising:
paving a plurality of longitudinal steel bars on a track slab production line;
the laid longitudinal steel bars are jointly transmitted to a fastener installation station through a transmission device, and insulating fasteners are installed on the longitudinal steel bars;
the longitudinal steel bars are jointly transmitted to a steel bar butt joint station through a transmission device, the transverse steel bars are placed on the longitudinal steel bars, and the insulating fasteners are placed between the longitudinal steel bars and the transverse steel bars;
and the longitudinal steel bars and the placed transverse steel bars are jointly transmitted to a hot melting station through a transmission device, and the insulating fastener is locally hot melted, so that the cooled insulating fastener is simultaneously fixedly connected to the longitudinal steel bars and the transverse steel bars.
Specifically, at the fastener installation station, the first mechanical arm grabs the insulating fastener and installs the insulating fastener on the longitudinal steel bar; at the steel bar butt joint station, grabbing transverse steel bars by a second mechanical arm, and placing the transverse steel bars on each longitudinal steel bar; and at the hot melting station, the third mechanical arm drives the hot melting working head to locally heat and melt the insulating fastener.
The embodiment is used for realizing more streamlined and automatic production. The device specifically comprises:
the conveying device 1 is used for conveying a plurality of longitudinal steel bars which are parallel to each other, and the fastener installation mechanism, the transverse steel bar taking and placing mechanism and the hot melting mechanism are arranged on the conveying path of the conveying device 1. Referring to fig. 2, the arrow direction in fig. 2 indicates the transmission direction of the transmission device 1; three boxes above the conveying device 1 respectively represent a fastener installation station, a reinforcing steel bar butt joint station and a hot melting station from left to right.
The fastener installation mechanism is used for installing an insulating fastener on the longitudinal steel bar and/or the transverse steel bar;
the transverse steel bar taking and placing mechanism is used for placing transverse steel bars on longitudinal steel bars one by one, and the transverse steel bars and the longitudinal steel bars are separated by the insulating fasteners;
the hot melting mechanism is used for hot melting the insulating fastener between the transverse steel bar and the longitudinal steel bar.
The insulating fastener used in this embodiment includes, as shown in fig. 3, a first insulating member 2 for partially covering the outside of the longitudinal reinforcing bars, and a second insulating member 3 for partially covering the outside of the transverse reinforcing bars. Wherein the first insulating part 2 and the second insulating part 3 are preferably arc-shaped plastic plates matched with the outer diameters of the steel bars, and the axes of the first insulating part 2 and the second insulating part are perpendicular to each other.
Preferably, the first insulating member 2 and the second insulating member 3 may be a split type structure or a monolithic structure.
Of course, the fastener installation mechanism, the transverse reinforcement bar picking and placing mechanism and the hot melting mechanism can be arranged in other ways than being sequentially arranged along the transmission direction of the transmission device as shown in fig. 2.
The device can be integrated on the existing track slab production line and works before the reinforcing mesh or the reinforcing cage is put into the template for casting.
Preferably, the fastener mounting mechanism includes a first mechanical arm 4 for gripping the insulating fastener. The transverse reinforcement picking and placing mechanism comprises a second mechanical arm 13 for grabbing transverse reinforcement. As shown in fig. 8, the hot melting mechanism includes a third mechanical arm 14, and a second heating device 15 located on the third mechanical arm 14.
Fig. 4 is a schematic diagram of the final connection of the present embodiment.
In a more preferred embodiment, the transverse bar picking and placing mechanism is shown in fig. 7, and the transverse bar picking and placing mechanism is used for picking transverse bars by the second mechanical arm 13 and placing the transverse bars above the arranged longitudinal bars from top to bottom.
Example 7:
on the basis of embodiment 6, the first insulating member 2 and the second insulating member 3 in this embodiment are fixedly connected into an integral structure before being mounted, and the fixing manner of the two is preferably integrally formed.
After the first mechanical arm 4 grabs the integral edge fastening piece, the first insulating piece 2 in the insulating fastening piece is fastened on the longitudinal steel bar. Specifically, as shown in fig. 5, the fastener installation mechanism of the embodiment includes a box 5 located above the transmission device 1, a fastener storage container 6 located in the box 5, and a plurality of first mechanical arms 4 installed in the box 5; the device also comprises a plurality of through holes 7 formed in the bottom of the box body 5, a baffle plate 8 for shielding the through holes 7, a first rotating disc 19 positioned on the baffle plate and a driving device for driving the baffle plate 8 to move.
When the fastener installation mechanism of the present embodiment is specifically operated,
firstly, the corresponding through hole 7 is blocked by the baffle plate 8, then, the first mechanical arm 4 grabs an insulating fastener from the fastener storage container 6 and places the insulating fastener on the first rotary table 19 on the corresponding baffle plate, the first mechanical arm 4 is loosened, the first rotary table 19 is started to adjust the direction, the orientation of the insulating fastener is enabled to rotate to the required direction, then, the insulating fastener is grabbed by the first mechanical arm again, the driving device is started to enable the baffle plate to release the shielding of the through hole, the first mechanical arm penetrates through the through hole, the insulating fastener is lowered, and the first insulating fastener is buckled on the longitudinal steel bar.
Preferably, the end of the first mechanical arm 4 is provided with a clamping claw matched with the integral type knot edge fastener; the clamping location is preferably the junction between the first insulating member 2 and the second insulating member 3.
In addition, since the shape and size of the insulating fastener are known, the adjustment of the orientation of the turntable can be achieved according to the prior art, and only the orientation of the insulating fastener needs to be adjusted to a required orientation suitable for fastening the first insulating member 2 on the longitudinal steel bar, for example, the adjustment can be achieved in a photoelectric sensing manner by utilizing a channel of the insulating fastener, and also can be achieved in an existing image recognition manner.
Preferably, the insulating fasteners in the fastener storage container 6 are regularly arranged according to a specified rule so as to facilitate the first robot arm to grasp them one by one.
Example 8:
on the basis of embodiment 6, the first insulating member 2 and the second insulating member 3 are each independent members, i.e., are both of a split structure; the first mechanical arm 4 can fix the first insulating part 2 outside the longitudinal steel bars, and can also fix the second insulating part 3 outside the transverse steel bars.
Specifically, as shown in fig. 6, in the fastener installation mechanism of the embodiment, an adsorption piece 9 matched with the outer walls of the first insulating piece 2 and the second insulating piece 3 is arranged at the end part of the first mechanical arm 4, and a plurality of negative pressure channels 10 are arranged on the adsorption piece 9 from the end surface, and the negative pressure channels 10 are connected with a negative pressure generator; the device also comprises a first telescopic device 11 matched with the outer wall of the adsorption piece 9 and a first heating device 12 positioned at the end part of the first telescopic device 11.
Preferably, the first insulating member 2 and the second insulating member 3 can be detachably matched with each other, and any matching manner that can be realized by a person skilled in the art can be adopted, for example, fastening, clamping, plugging and the like.
Preferably, the end of the first telescopic device 11 may also be provided with a turntable or other rotation mechanism for driving the first heating device 12 to rotate towards it.
Since the first insulating member 2 and the second insulating member 3 are arc-shaped members in this embodiment, the shape of the absorbing member 9 is set to be a concave arc shape matching with that of the first insulating member.
The embodiment is specifically used as follows:
the first mechanical arm 4 drives the absorbing part 9 to be buckled outside the first insulating part 2, the negative pressure generator is started to absorb the first insulating part, the first mechanical arm 4 drives the first insulating part to be buckled outside the longitudinal steel bar, then the negative pressure generator is closed, the first heating device extends to two sides of the first insulating part through the first expansion device, and the temperature is raised and the first insulating part is thermally fused, so that the first insulating part is thermally fused on the surface of the longitudinal steel bar to realize fixed connection;
similarly, the first mechanical arm 4 drives the absorbing part 9 to be buckled outside the second insulating part 3, the negative pressure generator is started to absorb the second insulating part, the first mechanical arm 4 drives the second insulating part to be buckled outside the transverse reinforcing steel bar, and then the negative pressure generator stretches out the first heating device to two sides of the second insulating part through the first telescopic device, and the temperature is raised and the heat is fused, so that the second insulating part is fused on the surface of the transverse reinforcing steel bar to realize fixed connection.
Preferably, the two first telescopic devices 11 are located at two opposite sides of the outer wall of the absorbing member 9, so that the first insulating member or the second insulating member can be conveniently fused from two ends, and stable connection between the first insulating member or the second insulating member and corresponding reinforcing steel bars is ensured.
The embodiment adopts the adsorption mode to grasp the split type insulating piece, can overcome the inconvenient clamping and placement of the arc-shaped insulating piece, and can avoid the damage problem easily caused by thinner thickness of the insulating piece and clamping of the arc-shaped insulating piece by the clamp.
Example 9:
on the basis of embodiment 6, the hot melting mechanism is improved, as shown in fig. 9, and the hot melting mechanism used in this embodiment comprises a second turntable 16 located inside or below the conveying device 1, a second telescopic device 17 located on the second turntable 16, and a third heating device 18 located at the top end of the second telescopic device 17.
The arrangement principle of this embodiment is that, considering that the stations for performing hot melting are relatively fixed on the production line, the number and the spacing of the longitudinal bars are also basically fixed for the track slabs, so that corresponding hot melting components are arranged at fixed positions inside or below the conveying device 1, when one transverse bar is installed in the transverse bar taking and placing mechanism, all the longitudinal bars below the transverse bar are moved to the hot melting stations together, then the second telescopic device 17 lifts the third heating device 18, and the third heating device is started to perform hot melting on the insulating fasteners at the junction of the longitudinal bars and the transverse bars.
Preferably, the transmission device uses a roller conveying line or a conveying line for clamping the reciprocating motion of two ends of the longitudinal steel bars, and the like, so that the second turntable and the second telescopic device are convenient to install and arrange, and the second turntable, the second telescopic device and the like are prevented from interfering with the normal transmission of the transmission device.
Example 10:
on the basis of embodiment 6, in this embodiment, the second heating device 15 is optimized, as shown in fig. 10 and 11, two openable and closable forks are arranged at the end of the third mechanical arm 14, a positioning block 151 is arranged at the bottom end of the fork, an induction device 152 is arranged at the bottom surface of the positioning block 151, a third telescopic device 153 is arranged on the inner side wall of the positioning block 151, a heat insulation mounting member 154 is arranged at the end of the third telescopic device 153, and a first heating coil 155, a second heating coil 156 and a third heating coil 157 are sequentially arranged from top to bottom on one side wall of the heat insulation mounting member 154 far from the third telescopic device 153; wherein, the section of the second heating coil 156 is in an isosceles trapezoid, and the bottom edge of the isosceles trapezoid is positioned on the surface of the heat insulation mounting piece 154; the distance between the bottom surface of the heat insulating mounting member 154 and the bottom surface of the positioning block 151 is greater than the thickness of the first insulating member 2.
The inner side wall of the positioning block 151 faces one side of the direction of the other bifurcation, and the third telescopic device 153 stretches laterally. The sensing device 152 is used for sensing whether the sensing device is in contact with the underlying longitudinal steel bar, and is preferably a conventional sensing technology such as a contact switch or a pressure sensor. The two forks are opened and closed in a translation mode, namely, the two forks are driven by any existing driving mode to be far away from each other or close to each other, and the displacement of the two forks in working is set according to actual needs. Further, the thermally insulating mounting member 154 is made of a thermally insulating material as its name implies.
Preferably, the first and third heating coils 155 and 157 are provided at edges of the upper and lower ends of the adiabatic mount 154, respectively, to ensure sufficient contact with the corresponding insulator, and to avoid ineffective contact between the insulator and the adiabatic mount 154. Meanwhile, the three heating coils are independently distributed, and unnecessary adhesion caused by large-area hot melting due to integral heating can be avoided. The cross section of the second heating coil 156 is isosceles trapezoid, and the thickness of the second heating coil gradually decreases, so that the second heating coil is beneficial to entering a gap between the first insulating piece 2 and the second insulating piece 3, and the contact/junction of the first insulating piece 2 and the second insulating piece 3 is effectively hot-melted, so that the complete consolidation of the first insulating piece 2 and the second insulating piece 3 is ensured; and moreover, the waist trapezoid cross-section structure can effectively increase the contact area, and is more beneficial to fully utilizing heat. In addition, the upper surface of the trapezoid cross-section structure is an inward and downward extending inclined plane, the inclined plane can guide the molten fluid dropped down after the upper first insulating piece 2 is excessively heated, the fluid is guided into a gap at the contact position of the first insulating piece 2 and the second insulating piece 3, further the consolidation between the first insulating piece 2 and the second insulating piece 3 is ensured, and the consolidation and insulation stability between the longitudinal steel bars and the transverse steel bars are improved.
When the heat melting is needed, firstly, the end of the third mechanical arm 14 reaches the upper part of the junction to be melted, the third mechanical arm 14 adjusts the direction, so that the two branches are respectively positioned at two sides of the axis of the transverse steel bar, the two branches are opened and descend until the sensing device 152 at the bottom of the positioning block 151 senses that the two branches are contacted with the longitudinal steel bar, the descent of the branches is stopped, the third telescoping device 153 is started, the heat insulation mounting piece 154 is driven to move inwards (the two heat insulation mounting pieces 154 are mutually closed), meanwhile, the first heating coil 155, the second heating coil 156 and the third heating coil 157 are started, the second insulating piece 3 is melted outside the transverse steel bar by the first heating coil 155, the first insulating piece 2 is melted outside the longitudinal steel bar by the third heating coil 157, and meanwhile, the second heating coil 156 extends into the gap where the first insulating piece 2 and the second insulating piece 3 are contacted, and the two are melted at the same time.
Example 11:
the non-binding connection method for the insulating reinforcement cage further comprises the following operation after the single-layer reinforcement cage is manufactured by adopting the method in any embodiment:
arranging two layers of reinforcing steel bars up and down, and installing insulating butt joint pieces 22 at two ends of the C-shaped or U-shaped reinforcing steel bars, so that the end parts of the C-shaped or U-shaped reinforcing steel bars are inserted into one side jack on the insulating butt joint pieces;
and the free ends of the end reinforcing steel bars of the upper and lower layers of reinforcing steel bar meshes are respectively inserted into the insertion holes at the other side of the insulating butt joint part, so that the reinforcing steel bar cage is obtained.
Preferably, the two ends of the insulating butt joint part can be hot melted, cooled and then simultaneously solidified on the C-shaped or U-shaped steel bars and the steel bar meshes.
The reinforcement cage obtained in this embodiment is shown in fig. 15, in which the insulating butt joint member 22 is in a straight cylindrical shape, the two axial ends of the insulating butt joint member are respectively provided with insertion holes 23, and the insertion holes 23 at the two ends are not communicated. In fig. 13, for better clarity, the jack 23 is shown, so a gap is left between the end of the reinforcing bar and the bottom of the jack, and in actual operation, the end of the reinforcing bar is preferably made to completely abut against the bottom of the jack.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, the term "coupled" as used herein may be directly coupled or indirectly coupled via other components, unless otherwise indicated.
Claims (2)
1. The non-binding connection method for the insulated steel reinforcement framework is characterized by being used for non-binding insulated connection of the track slab steel reinforcement of the ballastless track and comprising the following steps of:
paving a plurality of longitudinal steel bars on a track slab production line;
the laid longitudinal steel bars are jointly transmitted to a fastener installation station through a transmission device, and insulating fasteners are installed on the longitudinal steel bars;
the longitudinal steel bars are jointly transmitted to a steel bar butt joint station through a transmission device, the transverse steel bars are placed on the longitudinal steel bars, and the insulating fasteners are placed between the longitudinal steel bars and the transverse steel bars;
the longitudinal steel bars and the placed transverse steel bars are jointly transmitted to a hot melting station through a transmission device, and the insulating fastener is locally hot melted, so that the cooled insulating fastener is fixedly connected to the longitudinal steel bars and the transverse steel bars at the same time;
the insulation fastener comprises a first insulation piece which can be installed outside the longitudinal steel bars and a second insulation piece which can be installed outside the transverse steel bars; the first insulating piece is fixedly connected or detachably connected with the second insulating piece;
the first insulating piece and the second insulating piece are connected with each other, any insulating piece comprises a connecting hole and a notch formed in one side of the connecting hole, the axis of the connecting hole of the first insulating piece is perpendicular to that of the connecting hole of the second insulating piece, fastening parts matched with each other are arranged on two sides of the notch, and the first insulating piece and the second insulating piece are made of insulating materials;
the notch of the first insulating piece is opposite to the notch of the second insulating piece;
the apparatus for performing the non-ligating method comprises:
the conveying device (1) is used for conveying a plurality of longitudinal steel bars which are parallel to each other, and the fastener installation mechanism, the transverse steel bar taking and placing mechanism and the hot melting mechanism are positioned on the conveying path of the conveying device (1);
the fastener installation mechanism is used for installing an insulating fastener on the longitudinal steel bar and/or the transverse steel bar;
the transverse steel bar taking and placing mechanism is used for placing transverse steel bars on longitudinal steel bars one by one, and the transverse steel bars and the longitudinal steel bars are separated by the insulating fasteners;
the hot melting mechanism is used for hot melting the insulating fastener between the transverse steel bar and the longitudinal steel bar;
the fastener installation mechanism comprises a first mechanical arm (4) for grabbing the insulating fastener; the transverse steel bar picking and placing mechanism comprises a second mechanical arm (13) for grabbing transverse steel bars; the hot melting mechanism comprises a third mechanical arm (14) and a second heating device (15) positioned on the third mechanical arm (14);
the fastener installation mechanism further comprises a box body (5) positioned above the transmission device (1), a fastener storage container (6) positioned in the box body (5), and a plurality of first mechanical arms (4) are installed inside the box body (5); the device also comprises a plurality of through holes (7) formed at the bottom of the box body (5), a baffle plate (8) for shielding the through holes (7), a first rotating disc (19) positioned on the baffle plate, and a driving device for driving the baffle plate (8) to move;
the hot melting mechanism comprises a second rotary table (16) positioned in or below the transmission device (1), a second telescopic device (17) positioned on the second rotary table (16) and a third heating device (18) positioned at the top end of the second telescopic device (17);
two openable and closable forks are arranged at the end part of the third mechanical arm (14), a positioning block (151) is arranged at the bottom end of each fork, an induction device (152) is arranged at the bottom surface of the positioning block (151), a third telescopic device (153) is arranged on the inner side wall of the positioning block (151), an adiabatic mounting piece (154) is arranged at the end part of the third telescopic device (153), and a first heating coil (155), a second heating coil (156) and a third heating coil (157) are sequentially arranged from top to bottom on the side wall of one side of the adiabatic mounting piece (154) far away from the third telescopic device (153); wherein the section of the second heating coil (156) is in an isosceles trapezoid, and the bottom edge of the isosceles trapezoid is positioned on the surface of the heat insulation mounting piece (154); the distance between the bottom surface of the heat insulation installation piece (154) and the bottom surface of the positioning block (151) is larger than the thickness of the first insulating piece (2).
2. The method for non-binding attachment of an insulated steel reinforcement cage of claim 1,
at the fastener installation station, grabbing an insulating fastener by a first mechanical arm, and installing the insulating fastener on a longitudinal steel bar;
at the steel bar butt joint station, grabbing transverse steel bars by a second mechanical arm, and placing the transverse steel bars on each longitudinal steel bar;
and at the hot melting station, the third mechanical arm drives the hot melting working head to locally heat and melt the insulating fastener.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211569561.4A CN115770843B (en) | 2022-12-08 | 2022-12-08 | Non-binding connection method for insulating reinforcement cage |
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| CN202211569561.4A CN115770843B (en) | 2022-12-08 | 2022-12-08 | Non-binding connection method for insulating reinforcement cage |
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| CN115770843B true CN115770843B (en) | 2023-11-03 |
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| CN115770843A (en) | 2023-03-10 |
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