CN114197251B - Precast beam for rail transit and preparation method - Google Patents
Precast beam for rail transit and preparation method Download PDFInfo
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- CN114197251B CN114197251B CN202111547567.7A CN202111547567A CN114197251B CN 114197251 B CN114197251 B CN 114197251B CN 202111547567 A CN202111547567 A CN 202111547567A CN 114197251 B CN114197251 B CN 114197251B
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- Prior art keywords
- bar part
- vertical bar
- beam body
- seat
- lower frame
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
- E01B1/004—Ballastless track, e.g. concrete slab trackway, or with asphalt layers with prefabricated elements embedded in fresh concrete or asphalt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model provides a precast beam and preparation method for track traffic, includes beam body (1) that is used for as precast beam main part, sets up built-in fitting (2) in beam body (1), through beam body (1), has realized as the carrier component of precast beam, through built-in fitting (2), has realized carrying out accurate position connection to specific track, has consequently improved specific track's installation accuracy.
Description
Technical Field
The invention relates to a precast beam and a preparation method thereof, in particular to a precast beam for rail transit and a preparation method thereof.
Background
The track traffic refers to a type of traffic tool or a transportation system which needs to run on a specific track by an operation vehicle, the most typical track traffic is a railway system consisting of a traditional train and a standard railway, along with the diversified development of the train and the railway technology, the track traffic is more and more in type, not only is spread over long-distance land transportation, but also is widely applied to medium-short-distance urban public transportation, therefore, the precast beam used for the track traffic is an important traffic component, in the existing precast beam used for the track traffic, screw hole bodies are directly arranged on the beam body, because the position accuracy of the screw hole bodies on the beam body is not high, the installation accuracy of the specific track is affected,
the manufacturing precision requirement for the carrier-track beam of the high-speed traffic facility is more strict, when the requirements on the embedded parts with a large number of densely distributed embedded parts and the uniform flatness precision of the embedded parts are very high, the conventional beam body prefabrication method is difficult to achieve the design precision requirement,
the technical scheme of the invention is based on technical books provided by the applicant on the 11 th month 12 of 2021 and having the function of solving the actual technical problems in the working process, and the technical problems, technical characteristics and technical effects existing in the similar patent literature and background technology are obtained through retrieval.
Disclosure of Invention
The object of the present invention is a precast beam for rail transit,
the invention discloses a preparation method of a precast beam for rail transit.
In order to overcome the technical disadvantages described above, an object of the present invention is to provide a precast beam for rail transit and a manufacturing method thereof, thereby improving the installation accuracy of a specific rail.
In order to achieve the above purpose, the invention adopts the following technical scheme: a precast beam for rail transit comprises a beam body serving as a precast beam main body and an embedded part arranged in the beam body.
Because the beam body and the embedded part are designed, the bearing part serving as the precast beam is realized through the beam body, and the accurate position connection of the specific rail is realized through the embedded part, so that the mounting precision of the specific rail is improved.
The invention designs a method for connecting the beam body and the embedded part with each other in a mode of carrying out accurate position connection on a specific track.
The invention designs that the embedded part is connected with the beam body in a mode of realizing accurate position connection of a specific track by setting the distance size between the threaded hole bodies.
The technical effects of the three technical schemes are as follows: the basic technical scheme of the invention is formed by the beam body and the embedded part, the technical problem of the invention is solved, the embedded part is positioned and installed before the beam body is poured, and the position accuracy of the threaded hole body is ensured.
The invention designs that the beam body is arranged as a coagulation body of cement mortar and is connected with the embedded part in a holding way.
The technical effects of the above technical scheme are as follows: the setting of cement mortar pouring forming of the beam body is realized.
The embedded part comprises a horizontal bar part, a first vertical bar part, a second vertical bar part and a third vertical bar part, a groove body is arranged at the outer end face part of the horizontal bar part, the inner end face part of the horizontal bar part is respectively connected with the inner end face part of the first vertical bar part, the inner end face part of the second vertical bar part and the inner end face part of the third vertical bar part, threaded hole bodies are respectively arranged in the horizontal bar part and the first vertical bar part, the horizontal bar part and the second vertical bar part, threaded hole bodies are respectively arranged in the lower end part of the horizontal bar part, the first vertical bar part, the second vertical bar part and the third vertical bar part, the lower end part of the horizontal bar part, the first vertical bar part, the second vertical bar part and the third vertical bar part are respectively arranged in embedded connection with a beam body, the groove body is arranged in connection with a pressing plate on a specific track, the threaded hole bodies are respectively arranged in connection with a connecting screw rod on the specific track, the groove body is arranged in a rectangular blind hole body, the threaded hole bodies are respectively arranged in a round hole body, and the horizontal bar part, the first vertical bar part, the second vertical bar part and the third vertical bar part are respectively arranged in a rectangular block shape.
The technical effects of the above technical scheme are as follows: through vertical bar portion, satisfied the setting of screw hole body, satisfied and set up in the roof beam body embedding, increased the joint strength of built-in fitting and roof beam body.
The invention designs that the bottom end face of the groove body and the upper end face of the beam body are arranged on the same plane, and the height of the peripheral flange body of the groove body is set to be 10-14mm.
The technical effects of the above technical scheme are as follows: through the groove body, the pressing plate of the track is limited and fixed, and the action connection strength of the track is improved.
The invention designs that the beam body and the embedded parts are distributed in a mode of being implanted into the external connecting part, and the embedded parts are distributed at intervals along the upper end face part of the beam body.
The invention designs a preparation method of a precast beam for rail transit, which comprises the following steps: the bearing component serving as the precast beam is realized by the beam body, and the precise position connection of the specific track is realized by the embedded part.
The technical effects of the above technical scheme are as follows: and the pre-positioning treatment is carried out on the embedded part, so that the dimensional accuracy setting of the threaded hole body is realized.
The invention designs the method which comprises the following steps: clamping the first vertical bar part, the second vertical bar part and the third vertical bar part on a milling machine, forming the peripheral side surface of the horizontal bar part and the outer end surface of the horizontal bar part in a milling mode, forming a groove body on the outer end surface of the horizontal bar part, clamping the first vertical bar part, the second vertical bar part and the third vertical bar part on a drilling machine, drilling holes in the horizontal bar part and the first vertical bar part, the horizontal bar part and the second vertical bar part and the horizontal bar part and the third vertical bar part in a drilling mode to obtain a threaded hole matrix, then tapping the threaded hole matrix to obtain the threaded hole body, and thus obtaining the embedded part,
clamping the template of the beam body on a milling machine, forming a containing cavity on a bottom plate of the template in a milling mode, enabling the containing cavity to be matched with the cross bar part and correspond to the cross bar part, enabling the depth of the containing cavity to be equal to the height of the peripheral flange body of the groove body, clamping the template of the beam body on a drilling machine, drilling the containing cavity in a drilling mode to obtain a mounting hole body, enabling the aperture of the mounting hole body to be corresponding to the threaded hole body,
the fixing seat is arranged on a ground surface, the lug seat positioned on the lower frame is connected with the fixing seat through a pin shaft, the rubber pad is arranged at the end face part of the upper end of the lower frame, the end head of the bottom plate is respectively placed on the rubber pads positioned on the lower frames, the bottom plate is in overhead installation on the two lower frames, the cross bar part is placed on the accommodating cavity, the fastening screw is arranged on the mounting hole body, the fastening screw is rotated in the threaded hole body, the fastening screw is connected with the threaded hole body, the embedded parts are respectively arranged in the accommodating cavity, the built-in skeleton of the girder body is placed in the template, cement mortar is poured into the template, the girder body is manufactured after the cement mortar is coagulated, the upper frame is placed on the girder body, the connecting screw is rotated in the upper frame and the lower frame, the upper frame is connected with the lower frame through the connecting screw, the lifting hook seat positioned on the upper frame is connected with the lifting hook of the lifting device, the lower frame is turned over 180 DEG on the fixing seat, the upper frame is placed on the ground, the connecting screw is connected with the threaded hole body through the lifting device, the connecting screw is reversely rotated in the lower frame body, the direction of the girder body is reversely rotated from the upper frame to the lower frame, the threaded hole body is reversely rotated in the direction of the lower frame body, the girder body is reversely rotated from the upper frame body, the upper frame is rotated in the opposite direction of the threaded hole body, and the lower frame is reversely rotated in the direction of the lifting hole body is rotated, the upper frame is reversely rotated, the upper frame is rotated, and the upper frame is rotated in the lifting device is rotated, and the lifting device is reversely rotated, the lifting frame is in the lifting position, the lifting position is in the lifting.
The technical effects of the above technical scheme are as follows: the machining precision setting of the threaded hole body in the embedded part and the mounting hole body in the bottom plate is realized by machining, the mounting precision setting between the threaded hole body in the embedded part and the mounting hole body in the bottom plate is realized by the fastening screw, the occurrence of displacement phenomenon of the embedded part in the pouring process of the beam body is prevented, the position standard of the mounting hole body in the bottom plate generates a corresponding standard for the position of the threaded hole body in the embedded part, and the consistency performance of the precast beam is improved.
The invention designs that the lower frame and the upper frame are respectively arranged as L-shaped seat bodies, the fixed seat is arranged as a double-plate seat body with a rotating hole, the ear seat is respectively arranged as a single-plate seat body with a rotating hole, the lifting hook seat is arranged as a plate body with a through hole, and the rubber pad is arranged as a rectangular strip body.
The technical effects of the above technical scheme are as follows: the clamping connection of the precast beam is realized.
In the technical scheme, the beam body and the embedded part which are used for connecting the specific track at the accurate position are important technical characteristics, and the novel, creative and practical technical scheme has novelty, creativity and practicability in the technical field of precast beams and preparation methods for track traffic, and the terms in the technical scheme can be explained and understood by using patent documents in the technical field.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Figure 1 is a schematic view of a precast beam for rail transit,
figure 2 is a schematic diagram of the connection relationship among the embedded part 2, the bottom plate 3 and the fastening screw 4,
fig. 3 is a schematic diagram showing the connection relationship among the lower frame 5, the fixing seat 6, the ear seat 7, the hook seat 8, the upper frame 9 and the rubber pad 91,
the novel embedded type lifting hook comprises a beam body-1, an embedded part-2, a groove body-21, a threaded hole body-22, a transverse bar portion-23, a first vertical bar portion-24, a second vertical bar portion-25, a third vertical bar portion-26, a bottom plate-3, a containing cavity body-31, a mounting hole body-33, a fastening screw rod-4, a lower frame-5, a fixing seat-6, an ear seat-7, a lifting hook seat-8, an upper frame-9 and a rubber pad-91.
Description of the embodiments
Terms such as "having," "including," and "comprising," as used herein, are to be construed as not being accompanied by the presence or addition of one or more other elements or combinations thereof, in accordance with the censoring guidelines.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention 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 present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the various embodiments of the invention described below may be combined with one another as long as they do not interfere with one another, and, unless otherwise specified, the equipment and materials used in the examples below are commercially available, as the process conditions are not explicitly described, with reference to the commercially available product specifications or in accordance with methods conventional in the art.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic view of a precast beam for rail transit, in which one of first embodiments of the present invention, which is specifically described with reference to the accompanying drawings, includes a beam body 1 and an embedded part 2, and the embedded part 2 is disposed in the beam body 1.
In the present embodiment, the beam body 1 is provided as a coagulation of cement mortar and the beam body 1 is provided in accommodating coupling with the embedded part 2.
Through the roof beam body 1, formed the support tie point to built-in fitting 2, realized by roof beam body 1 with built-in fitting 2's connection, its technical aim is: for use as a support carrier for the embedment 2.
In the present embodiment, the embedded part 2 is provided to include the horizontal bar portion 23, the first vertical bar portion 24, the second vertical bar portion 25, and the third vertical bar portion 26, and the groove body 21 is provided at the outer end face portion of the horizontal bar portion 23, the inner end face portion of the horizontal bar portion 23 is provided to be coupled with the inner end face portion of the first vertical bar portion 24, the inner end face portion of the second vertical bar portion 25, and the inner end face portion of the third vertical bar portion 26, respectively, the screw hole body 22 is provided in the horizontal bar portion 23 and the first vertical bar portion 24, in the horizontal bar portion 23 and the second vertical bar portion 25, respectively, in the horizontal bar portion 23 and the third vertical bar portion 26, and the lower end portion of the horizontal bar portion 23, the first vertical bar portion 24, the second vertical bar portion 25, and the third vertical bar portion 26 are provided to be in-fit-in coupling with the beam body 1, the groove body 21 is provided to be coupled with the pressure plate located on the specific rail, and the connecting screw rod located on the specific rail, the groove body 21 is provided to be a rectangular blind hole body, and the screw hole body 22 is provided to be a rectangular block-shaped, and the horizontal bar body 23, the first vertical bar portion 24, the third vertical bar portion 26, respectively, and the horizontal bar portion 25 are provided to be rectangular hole body shaped.
Through built-in fitting 2, formed the support tie point to roof beam body 1, realized being connected with roof beam body 1 by horizontal bar portion 23, first vertical bar portion 24, second vertical bar portion 25 and third vertical bar portion 26, realized being located clamp plate and connecting screw on the specific track by recess body 21 and screw hole body 22 and connected the processing, its technical aim is: for use as a component body for connection to a particular track.
In the present embodiment, the bottom end face portion of the groove body 21 and the upper end face portion of the beam body 1 are disposed on the same plane, and the height of the peripheral flange body of the groove body 21 is set to 10-14mm.
The technical purpose is that: the connection strength to a specific track is improved.
In this embodiment, the beam body 1 and the embedded parts 2 are arranged to be distributed in a manner of implanting the external connection portion and the embedded parts 2 are arranged to be distributed at intervals along the upper end face portion of the beam body 1.
In the second embodiment of the present invention, the height of the peripheral flange body of the groove body 21 is set to 10mm.
In the third embodiment of the present invention, the height of the peripheral flange body of the groove body 21 is set to 14mm.
In the fourth embodiment of the present invention, the height of the peripheral flange body of the groove body 21 is set to 12mm.
The invention will be further described with reference to the following examples, which are intended to illustrate the invention and not to limit it further.
A preparation method of a precast beam for rail transit comprises the following steps: clamping the first, second and third vertical bar portions 24, 25 and 26 on a milling machine, forming the peripheral side surface of the horizontal bar portion 23 and the outer end surface of the horizontal bar portion 23 by milling, forming the groove body 21 on the outer end surface of the horizontal bar portion 23, clamping the first, second and third vertical bar portions 24, 25 and 26 on a drilling machine, drilling holes in the horizontal bar portion 23 and 24, the horizontal bar portion 23 and 25, and the horizontal bar portion 23 and the third vertical bar portion 26 by drilling, and tapping the threaded hole body 22 to obtain the screw hole body 22,
clamping the template of the beam body 1 on a milling machine, forming a containing cavity 31 on a bottom plate 3 of the template by the milling mode, enabling the containing cavity 31 to be matched with the transverse bar part 23 and correspond to the transverse bar part, enabling the depth of the containing cavity 31 to be equal to the height of the peripheral flange body of the groove body 21, clamping the template of the beam body 1 on the drilling machine, drilling the containing cavity 31 by the drilling mode to obtain a mounting hole body 33, enabling the aperture of the mounting hole body 33 to correspond to the threaded hole body 22,
the fixing seat 6 is arranged on a ground surface, the ear seat 7 positioned on the lower frame 5 is connected with the fixing seat 6 through a pin shaft, a rubber pad 91 is arranged on the end face of the upper end of the lower frame 5, the end heads of the bottom plates 3 are respectively arranged on the rubber pads 91 positioned on the lower frames 5, the bottom plates 3 are arranged on the two lower frames 5 in an overhead manner, the transverse strip parts 23 are arranged on the containing cavities 31, the fastening screw 4 is arranged on the mounting hole body 33, the fastening screw 4 rotates in the threaded hole body 22, the fastening screw 4 is connected with the threaded hole body 22, the embedded parts 2 are respectively arranged in the containing cavities 31, the built-in framework of the beam body 1 is arranged in a template, cement mortar is poured into the template, the beam body 1 is prepared after the cement mortar is coagulated, the upper frame 9 is arranged on the beam body 1, the connecting screw is rotated in the upper frame 9 and the lower frame 5, the upper frame 9 and the lower frame 5 are connected together by the connecting screw, the hook seat 8 on the upper frame 9 is connected with the hook of the lifting device, the lower frame 5 is turned 180 DEG on the fixed seat 6 by the lifting device, the upper frame 9 is placed on the ground plane, the connecting screw is rotated reversely in the upper frame 9 and the lower frame 5, the upper frame 9 and the lower frame 5 are separated, the lower frame 5 is turned reversely by 180 DEG on the fixed seat 6, the lower frame 5 is returned to the original state, the fastening screw 4 is rotated reversely in the threaded hole body 22, the fastening screw 4 is taken out from the threaded hole body 22 and the mounting hole body 33, and the template is separated from the beam body 1 by the lifting device.
In the present embodiment, the lower frame 5 and the upper frame 9 are respectively provided as L-shaped seat bodies and the fixing seats 6 are provided as double plate seat bodies having rotation holes, the ear seats 7 are respectively provided as single plate seat bodies having rotation holes and the hook seats 8 are provided as plate bodies having through-hole bodies, and the rubber pads 91 are provided as rectangular bar bodies.
In a second embodiment of the invention, the beam body 1 and the embedment 2 are coupled to each other in such a way that an exact position connection is made to a specific track.
In this embodiment, the embedment 2 is coupled to the beam body 1 in such a way that an accurate position connection for a specific track is achieved by setting the distance dimension between the screw hole bodies 22.
The second embodiment of the present invention is based on the first embodiment,
a second embodiment of the invention comprises the steps of: the beam body 1 is used as a bearing component of the precast beam, and the embedded part 2 is used for realizing accurate position connection of a specific track.
The second embodiment of the present invention is based on the first embodiment.
The invention has the following characteristics:
1. due to the design of the beam body 1 and the embedded part 2, the bearing component serving as the precast beam is realized through the beam body 1, and the accurate position connection of the specific rail is realized through the embedded part 2, so that the mounting precision of the specific rail is improved.
2. Due to the design of the bottom plate 3 and the fastening screw 4, the mold forming of the precast beam is realized.
3. Due to the design of the lower frame 5, the fixed seat 6, the ear seat 7, the lifting hook seat 8 and the upper frame 9, and the rubber pad 91, the disassembly of the formed precast beam template is realized.
4. Because the structure shape is designed to limit the numerical range, the numerical range is the technical characteristic in the technical scheme of the invention, and the technical characteristic of the numerical range is not calculated through a formula or obtained through limited tests, and the tests show that the technical characteristic of the numerical range has good technical effect.
5. Because the technical characteristics of the invention are designed, the experiment shows that the performance indexes of the invention are at least 1.7 times of the existing performance indexes under the independent and mutually aggregated functions of the technical characteristics, and the invention has good market value through evaluation.
Still other technical features of the coupling of the beam body 1 and the embedment 2, which are connected to the precise location of the specific rail, are one of the embodiments of the present invention, and the technical features of the above-described embodiments may be combined arbitrarily, and in order to meet the requirements of patent laws, patent implementation details and examination guidelines, all possible combinations of the technical features of the above-described embodiments will not be described.
The above embodiments are only one implementation form of the precast beam and the preparation method for rail transit provided by the present invention, and other modifications, adding or reducing components or steps in the precast beam or the preparation method according to the solution provided by the present invention, or using the present invention in other technical fields close to the present invention, all belong to the protection scope of the present invention.
Claims (2)
1. A preparation method of a precast beam for rail transit is characterized by comprising the following steps: the prepared precast beam comprises a beam body (1) used as a main body of the precast beam and an embedded part (2) arranged in the beam body (1),
the embedded part (2) is connected with the beam body (1) in a mode of realizing accurate position connection of a specific track by setting the distance between the threaded hole bodies (22),
the embedded part (2) is provided with a transverse bar part (23), a first vertical bar part (24), a second vertical bar part (25) and a third vertical bar part (26), a groove body (21) is arranged at the outer end face part of the transverse bar part (23), the inner end face part of the transverse bar part (23) is respectively connected with the inner end face part of the first vertical bar part (24), the inner end face part of the second vertical bar part (25) and the inner end face part of the third vertical bar part (26), screw hole bodies (22) are respectively arranged in the horizontal bar part (23) and the first vertical bar part (24), the horizontal bar part (23) and the second vertical bar part (25), screw hole bodies (22) are respectively arranged in the horizontal bar part (23) and the third vertical bar part (26), the lower end part of the horizontal bar part (23), the first vertical bar part (24), the second vertical bar part (25) and the third vertical bar part (26) are respectively arranged to be connected with the beam body (1) in an embedded way, the groove body (21) is arranged to be connected with a pressing plate positioned on a specific track, the screw hole bodies (22) are arranged to be connected with a connecting screw rod positioned on the specific track, the groove body (21) is arranged to be a rectangular blind hole body, the screw hole bodies (22) are arranged to be round hole bodies, the horizontal bar part (23), the first vertical bar part (24), the second vertical bar part (25) and the third vertical bar part (26) are respectively arranged to be rectangular block bodies,
the beam body (1) and the embedded parts (2) are distributed according to the way of implanting the external connection part, the embedded parts (2) are distributed along the upper end face part of the beam body (1) at intervals,
the method comprises the following steps: the beam body (1) is used as a bearing component of the precast beam, the embedded part (2) is used for realizing the accurate position connection of the specific track,
clamping a first vertical bar part (24), a second vertical bar part (25) and a third vertical bar part (26) on a milling machine, forming the peripheral side surface of a horizontal bar part (23) and the outer end surface of the horizontal bar part (23) by milling, forming a groove body (21) on the outer end surface part of the horizontal bar part (23), clamping the first vertical bar part (24), the second vertical bar part (25) and the third vertical bar part (26) on a drilling machine, drilling holes in the horizontal bar part (23) and the first vertical bar part (24), the horizontal bar part (23) and the second vertical bar part (25) and the horizontal bar part (23) and the third vertical bar part (26) by drilling, then tapping the threaded hole body (22) to obtain an embedded part (2),
clamping a template of a beam body (1) on a milling machine, forming a containing cavity (31) on a bottom plate (3) of the template in a milling mode, enabling the containing cavity (31) to be matched with a transverse bar part (23) and correspond to the transverse bar part, enabling the depth of the containing cavity (31) to be equal to the height of a peripheral flange body of a groove body (21), clamping the template of the beam body (1) on a drilling machine, drilling the containing cavity (31) in a drilling mode to obtain a mounting hole body (33), enabling the aperture of the mounting hole body (33) to correspond to that of a threaded hole body (22),
the fixing seat (6) is arranged on a ground surface, the lug seat (7) positioned on the lower frame (5) is connected with the fixing seat (6) through a pin shaft, the rubber pad (91) is arranged at the end face part of the upper end of the lower frame (5), the end heads of the bottom plates (3) are respectively placed on the rubber pads (91) positioned on the lower frame (5), the bottom plates (3) are arranged on the two lower frames (5) in an overhead manner, the transverse strip part (23) is placed on the accommodating cavity (31), the fastening screw rod (4) is arranged on the mounting hole body (33), the fastening screw rod (4) rotates in the threaded hole body (22), the fastening screw rod (4) is connected with the threaded hole body (22), the embedded parts (2) are respectively arranged in the accommodating cavity (31), the built-in frameworks of the beam body (1) are placed in the templates, cement mortar is poured into the templates, the beam body (1) is manufactured after the cement mortar is condensed, the upper frame (9) is placed on the beam body (1), the upper frame (9) is connected with the upper frame (9) through the lifting hook (9), the upper frame (5) and the lifting hook (8) are connected with the upper frame (5) through the lifting hook, the lower frame (5) is turned over by 180 degrees on the fixed seat (6), the upper frame (9) is placed on the ground surface, the connecting screw is rotated reversely in the upper frame (9) and the lower frame (5), the upper frame (9) is separated from the lower frame (5), the lower frame (5) is turned over by 180 degrees reversely on the fixed seat (6), the lower frame (5) is returned to the original state, the fastening screw (4) is rotated reversely in the threaded hole body (22), the fastening screw (4) is taken out from the threaded hole body (22) and the mounting hole body (33), and the template is separated from the beam body (1) through the lifting device,
the lower frame (5) and the upper frame (9) are respectively arranged as L-shaped seat bodies, the fixed seat (6) is arranged as a double-plate seat body with a rotation hole, the ear seat (7) is respectively arranged as a single-plate seat body with a rotation hole, the lifting hook seat (8) is arranged as a plate body with a through hole body, and the rubber pad (91) is arranged as a rectangular strip body.
2. The method for manufacturing a precast beam for rail transit according to claim 1, characterized by: the bottom end face of the groove body (21) and the upper end face of the beam body (1) are arranged on the same plane, and the height of the peripheral flange body of the groove body (21) is set to be 10-14mm.
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| CN114197251A (en) | 2022-03-18 |
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