CN216816199U - Pitch solidification railway roadbed test piece forming die - Google Patents
Pitch solidification railway roadbed test piece forming die Download PDFInfo
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- CN216816199U CN216816199U CN202122257007.XU CN202122257007U CN216816199U CN 216816199 U CN216816199 U CN 216816199U CN 202122257007 U CN202122257007 U CN 202122257007U CN 216816199 U CN216816199 U CN 216816199U
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Abstract
The utility model discloses a forming die for an asphalt curing roadbed test piece, and belongs to the technical field of traffic civil engineering application. It comprises a bottom plate; the side die is fixedly connected to the top surface of the bottom plate and comprises a die cavity with an opening at the top, wherein the four side plates and the bottom plate form the die cavity; the convex block is arranged in the die cavity, the bottom surface of the convex block is fixedly connected with the top surface of the bottom plate, one side surface of the convex block is fixedly connected with one side plate of the side die, and gaps are reserved between the other three side surfaces of the convex block and the corresponding side plates; still including the lug structure of convenient hoist and mount, strengthen the first reinforcement of connection structure intensity between side form bottom and bottom plate and strengthen the second reinforcement of connection structure intensity between each adjacent side board of side form. The mould has compact structure and small self weight, can ensure stable and rapid molding of the asphalt mixture, and has reliable structural strength in the vibration compaction molding process.
Description
Technical Field
The utility model belongs to the technical field of traffic civil engineering application, and particularly relates to a forming die for an asphalt cured ballast bed test piece.
Background
The high-speed railway is an important infrastructure and a vehicle in China, is a safe, efficient and comfortable transportation mode, is an important component of a modern transportation system, and the ballast track is one of the most basic track forms of the high-speed railway.
Aiming at the defects, the dispersed granular ballast materials are bonded at home and abroad, so that the capability of keeping the geometric shape and position of the track is enhanced, the later-stage settlement of the track is reduced due to the reduction of the stress of the ballast and the bed, and the maintenance workload can be greatly reduced. However, the cost of polyurethane foam materials is high, and therefore, attempts have been made to make a new type of elastic cured track bed structure from asphalt mixture, which has both good mechanical properties and good economic efficiency.
The size of the track bed is large, and a groove with a specific size needs to be reserved for arranging the sleeper, so that the asphalt curing track bed is a large test piece block with an irregular shape, the size of a common asphalt mixture mold is limited at present, the groove cannot be reserved, the relevant requirements of the asphalt curing track bed are difficult to meet, and the size of the asphalt curing track bed test piece is large, and a proper demolding mode needs to be selected.
At present, a method of demoulding a mould by utilizing inertia is commonly used, but the weight of the whole mould and a test piece block is heavy, the mould is erected, a test piece plate is difficult to be demoulded by utilizing inertia, and the test piece plate is hit on the ground by the inertia, so that the test piece block is easy to be damaged, and certain influence is generated on the quality of the test piece block.
In addition, the concrete block forming machine is brick-making forming equipment for producing concrete products in a professional way, different types of block forming machines are selected according to the output, and simple, optimized, fine-selected, semi-automatic, full-automatic and other block forming machine brick-making production lines can be selected according to the investment scale, but the forming machine has higher cost and larger occupied area, has larger limit on the specification of the produced asphalt concrete blocks, is difficult to reserve grooves, and can not meet the requirements of an asphalt curing ballast bed.
In addition, the asphalt solidification ballast bed adopts vibration compaction as a forming mode at present, and vibration generated by the vibration compaction is large, so that the requirement on the structural strength of a forming die of the ballast bed is also provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention adopts the following technical solutions.
A pitch solidification roadbed test piece forming die comprises:
a base plate;
the side die is fixedly connected to the top surface of the bottom plate and comprises a die cavity with an opening at the top, wherein the four side plates and the bottom plate form the die cavity;
the convex block is arranged in the die cavity, the bottom surface of the convex block is fixedly connected with the top surface of the bottom plate, one side surface of the convex block is fixedly connected with one side plate of the side die, and gaps are reserved between the other three side surfaces of the convex block and the corresponding side plate.
Further, still include the lug, it includes:
the first lifting lugs are horizontal lifting lugs and are symmetrically formed on two sides of the bottom plate;
and the second lifting lug is a vertical lifting lug and symmetrically formed on two sides of the side die.
Further, still include first reinforcement, it is located on the bottom plate top surface, strengthens the side form bottom and bottom plate between connection structure intensity.
Further, first reinforcement has four, corresponds respectively to set up in each curb plate outside bottom of side form, first reinforcement includes:
the base plate is detachably connected to the top surface of the bottom plate through bolts, and one side surface of the base plate is abutted against the bottom of the outer side surface of one side plate of the side die;
the rib plate is a right-angle triangular plate, one right-angle side is fixedly connected with the top surface of the base plate, and the other right-angle side is abutted against the outer side face of one side plate of the side mold.
Furthermore, the second reinforcing part is arranged at the joint of each adjacent side plate of the side die and used for reinforcing the strength of the connecting structure between each adjacent side plate of the side die.
Further, there are four second stiffeners, locate the adjacent curb plate junction in four places of side form respectively, the second stiffener includes:
one end of the connecting plate is fixedly connected to the top of one end of one side plate, the other end of the connecting plate extends out of the side plate along the length direction of the corresponding side plate, and a through hole is formed in the extending end of the connecting plate;
one end of each screw is fixedly connected to the top of one end of the adjacent side plate close to the connecting plate, and the other end of each screw extends out of the corresponding side plate along the length direction of the corresponding side plate and penetrates through the through hole in the connecting plate;
and the nut is matched and screwed with the extending end of the screw rod.
Furthermore, a die cavity formed by the side die and the bottom plate is a rectangular space of 1050mm 500mm 350 mm;
the bump is a cuboid structure with the thickness of 1000mm 110mm 322 mm.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) the asphalt curing roadbed test piece forming die can ensure that an asphalt mixture is stably and quickly formed;
(2) the forming die for the asphalt curing ballast bed test piece is provided with the lifting lugs to facilitate lifting during transportation and lifting during demolding, and in the lifting process, the first lifting lugs and the second lifting lugs are matched to ensure stable reliability during lifting, stress at the connecting structure of the side die and the bottom plate can be reduced in the lifting process, and safety is improved;
(3) according to the asphalt curing ballast bed test piece forming die, the reinforcing piece is arranged, so that stable support can be provided for the structural strength of the die, and the failure of the connecting structure of the die in the vibration forming process is avoided;
(4) the utility model has simple structure, reasonable design and easy manufacture, effectively reduces the dead weight of the die, is convenient for transportation and demoulding operation, and simultaneously ensures the strength of the die while reducing the dead weight of the die as much as possible by the design of the size parameters of the die.
Drawings
FIG. 1 is a schematic structural view of a mold for molding a test piece of an asphalt curing ballast bed according to the present invention;
FIG. 2 is a schematic view of a molded ballast bed test piece;
in the figure:
1. a base plate;
2. performing side die; 20. a first side plate; 21. a second side plate;
3. a bump;
4. lifting lugs; 40. a first lifting lug; 41. a second lifting lug;
5. a first reinforcement; 50. a substrate; 51. a bolt; 52. a rib plate;
6. a second reinforcement;
60. a connecting plate; 61. a screw;
1000. solidifying the ballast bed with asphalt; 1100. and (4) a groove.
Detailed Description
The utility model is further described below with reference to specific embodiments and the accompanying drawings.
Example 1
The pitch solidification railway roadbed test piece forming die of this embodiment includes:
a base plate 1;
the side die 2 is fixedly connected to the top surface of the bottom plate 1, and the side die 2 is a die cavity with an opening at the top and formed by four side plates and the bottom plate 1;
and the convex block 3 is arranged in the die cavity, the bottom surface of the convex block 3 is fixedly connected with the top surface of the bottom plate 1, one side surface of the convex block 3 is fixedly connected with one side plate of the side die 2, and gaps are reserved between the other three side surfaces of the convex block 3 and the corresponding side plates.
As shown in fig. 2, since the asphalt solidified track bed 1000 has a large volume and a groove 1100 with a specific size needs to be reserved for the installation of the soft sleeper, the mold cavity structure of the track bed test piece mold needs to be designed adaptively, and meanwhile, an inertia demolding method is often adopted during demolding of the test piece, so the composition structure and the weight of the mold are also one of important considerations in mold design.
According to the forming die for the asphalt curing roadbed test piece, the bottom plate 1 is a steel plate, the thickness of the bottom plate is 10mm, the weight can be reduced to the maximum extent on the premise of ensuring the strength of the asphalt curing roadbed test piece in the vibration forming process, and transportation and later-stage demolding operation are facilitated; the side form 2 of the embodiment is formed by connecting four side plates end to end, the side form 2 of the embodiment specifically comprises two long side plates one 20 and two short side plates two 21 which are arranged in parallel, the thickness of each side plate is the same, the bottom surface of each side plate is fixedly connected with the bottom plate 1 through a bolt structure, so that the side form 2 and the bottom plate 1 are matched to form a cuboid-shaped mold cavity space, the shape of the mold cavity wall is matched with the shape of a finally-formed test sword, furthermore, a convex block 3 is arranged in the mold cavity, namely, between each side plate of the side form 2, the bottom surface of the convex block 3 is fixedly connected with the top surface of the bottom plate 1 through a bolt structure, one side surface of the convex block 3 is fixedly connected with the middle part of each side plate 21, when a test piece is formed, a space can be reserved for placing a soft pillow by the convex block 3 part, and the asphalt curing ballast bed test piece forming mold of the embodiment can ensure that asphalt mixture is stable, And (4) quickly forming.
Example 2
The asphalt cured ballast bed test piece forming die of this embodiment is further improved on the basis of embodiment 1, and further comprises a lifting lug 4, which comprises:
the first lifting lugs 40 are horizontal lifting lugs and are symmetrically formed on two sides of the bottom plate 1;
the second lifting lugs 41 are vertical lifting lugs and are symmetrically formed on two sides of the side die 2.
The test piece of this embodiment is inversion molding, need to invert the mould after the shaping and carry out the drawing of patterns, therefore the mould design needs convenient hoist and mount, so this embodiment has designed lug 4 structure, as shown in fig. 1, lug 4 of this embodiment includes lug one 40 and lug two 41, lug one 40 is the hoisting structure that forms at bottom plate 1 both sides face level, lug two 41 is the vertical hoisting structure that forms in side form 2 both sides face, in the hoist and mount process, lug one 40 and lug two 41 cooperate can ensure the stable reliability when hoist and mount, and can reduce the atress of the lateral form 2 and bottom plate 1 connection structure department in the hoist and mount process, improve the security.
Further, in this embodiment, the length of the first lifting lug 40 is 90mm, the width is 65mm, the length of the second lifting lug 41 is 90mm, and the width is 70mm, and the structural design of the lifting lug 4 facilitates the lifting during demolding and the transportation and movement of the mold.
Example 3
The pitch solidification roadbed test piece forming die of this embodiment does further improvement on the basis of embodiment 2, still includes first reinforcement 5, and it is located on 1 top surface of bottom plate, strengthens 2 bottoms of side form and 1 inter-connection structure intensity of bottom plate.
The asphalt curing roadbed test piece adopts the shaping mode of vibration compaction at present, and consequently the vibration that produces in the shaping process is great, has higher requirement to the intensity of mould structure and each spare part connection structure, and consequently this embodiment sets up first reinforcement 5, aims at strengthening the intensity of side form 2 and bottom plate 1 within a definite time connection structure, avoids the vibration compaction to make this department structure inefficacy.
The first reinforcing member 5 for reinforcing the strength of the connection structure between the side mold 2 and the bottom plate 1 has various structures, and one of the structures is shown in the embodiment as follows:
the base plate 50 is detachably connected to the top surface of the bottom plate 1 through bolts 51, and one side surface of the base plate 50 is abutted against the bottom of the outer side surface of one side plate of the side die 2;
and the rib plate 52 is a right-angle triangular plate, one right-angle side of the rib plate is fixedly connected with the top surface of the base plate 50, and the other right-angle side of the rib plate is abutted against the outer side surface of one side plate of the side mold 2.
In this embodiment, the length of the base plate 50 is the same as that of the side plate of the corresponding side mold 2, a plurality of screw holes are formed in the base plate 50, the base plate 50 is fixed on the outer side of the corresponding side plate by screwing the base plate 1 through the screw holes with bolts 51, and one side surface of the base plate 50 is abutted against the outer side of the corresponding side plate, so that the bottom structure of the side mold 2 is reinforced stably; a right-angle side of the rib plate 52 is fixedly welded with the top surface of the base plate 50, and the other right-angle side abuts against the middle part of the outer side of the corresponding side plate, so that the reinforcing stability of the middle structure of the side die 2 is formed.
The first reinforcing part 5 of the embodiment has the advantages of simple structure, compact and attractive structure, light dead weight and capability of providing stable support for the structural strength of the die.
Example 4
The asphalt curing ballast bed test piece forming die of this embodiment is further improved on the basis of embodiment 1~3, still includes second reinforcement 6, and it locates each adjacent curb plate junction of side form 2, strengthens the connection structure intensity between each adjacent curb plate of side form 2.
The second reinforcement 6 is provided to reinforce the strength of the connection structure between the adjacent side plates constituting the side mold 2 and the strength of the top structure of the side mold 2.
The second reinforcement 6 has various structural forms, such as angle steel, one side of which is fixed on the top of one side plate, and the other side of which is fixed on the top of the adjacent side plate, thereby forming a reinforced structure, and this embodiment shows another structure of the second reinforcement 6:
one end of the connecting plate 60 is fixedly connected to the top of one end of one side plate, the other end of the connecting plate 60 extends out of the side plate along the length direction of the corresponding side plate, and a through hole is formed in the extending end of the connecting plate 60;
one end of each screw rod 61 is fixedly connected to the top of one end of the adjacent side plate close to the connecting plate 60, and the other end of each screw rod 61 extends out of the corresponding side plate along the length direction of the corresponding side plate and penetrates through the through hole in the connecting plate 60;
and the nut is matched and screwed with the extending end of the screw rod 61.
As shown in fig. 1, in this embodiment, the top portions of the two ends of the side plate two 21 are fixed with the connecting plate 60, the connecting plate 60 extends outwards along the length direction of the side plate two 21 to form an extending end, the top portions of the two ends of the side plate one 20 are fixed with the screw rods 61, the screw rods 61 extend outwards along the length direction of the side plate one 20 to form an extending end, when the side plate and the bottom plate 1 are fixedly assembled, the screw rods 61 of the adjacent ends of the side plate one 20 and the side plate two 21 are matched and penetrate through the through holes on the connecting plate 60, and then are screwed and fixed through nuts, so that the connecting structural strength between the adjacent side plates forming the side mold 2 and the top structural strength of the side mold 2 are strengthened.
The second reinforcement 6 of this embodiment is simple in construction, and the dead weight is little, and can provide stable support to the structural strength of mould.
Further, the structural design of the first reinforcing part 5 and the second reinforcing part 6 of the embodiment does not influence the disassembly and replacement of each part of the die, and the later maintenance is convenient.
Example 5
The asphalt curing roadbed test piece forming die of the embodiment is further improved on the basis of the embodiment 4, and a die cavity formed by the side die 2 and the bottom plate 1 is a cuboid space of 1050mm by 500mm by 350 mm;
the bump 3 is a rectangular parallelepiped structure of 1000mm 110mm 322 mm.
The overall dimension of the asphalt curing ballast bed test piece influences the use performance of the test piece, and through design specification requirements and finite element calculation and analysis, the effective service life, the mechanical property and the wear resistance of the prefabricated asphalt curing ballast bed test piece are optimal when the overall dimension of the asphalt curing ballast bed test piece is 1050mm × 500mm × 350mm, so that the asphalt curing ballast bed test piece forming die is designed according to the overall dimension of the asphalt curing ballast bed test piece under the optimal performance, wherein:
the length of the bottom plate 1 is 1200mm, the width is 650mm, and the thickness is 10 mm;
the length of the first side plate 20 is 1050mm, the height of the first side plate is 450mm, and the thickness of the first side plate is 10 mm;
the length of the second side plate 21 is 530mm, the height of the second side plate is 450mm, and the thickness of the second side plate is 10 mm;
the convex block 3 is fixedly connected with the middle part of one second side plate 21, the distance from the convex block 3 to the other second side plate 21 is 89mm, and the distance from the convex block 3 to the first side plate 20 is 50 mm.
Through the mould size of this embodiment to as few materials as possible constitute the die cavity that can the best test piece size of shaping, reduced mould weight, convenient transportation and follow-up drawing of patterns, and can guarantee the structural strength of mould.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides an asphalt curing railway roadbed test piece forming die which characterized in that includes:
a base plate;
the side die is fixedly connected to the top surface of the bottom plate and comprises a die cavity with an opening at the top, wherein the four side plates and the bottom plate form the die cavity;
the convex block is arranged in the die cavity, the bottom surface of the convex block is fixedly connected with the top surface of the bottom plate, one side surface of the convex block is fixedly connected with one side plate of the side die, and gaps are reserved between the other three side surfaces of the convex block and the corresponding side plate.
2. The asphalt curing ballast bed test piece molding die as claimed in claim 1, further comprising a lifting lug, which comprises:
the first lifting lugs are horizontal lifting lugs and are symmetrically formed on two sides of the bottom plate;
and the second lifting lug is a vertical lifting lug and symmetrically formed on two sides of the side die.
3. The mold for molding the asphalt cured ballast bed test piece according to claim 2, wherein: still include first reinforcement, it is located on the bottom plate top surface, strengthens the connection structure intensity between side form bottom and bottom plate.
4. The asphalt curing ballast bed test piece forming mold as claimed in claim 3, wherein there are four first reinforcing members respectively disposed at the bottom of the outer side of each side plate of the side mold, the first reinforcing members comprising:
the base plate is detachably connected to the top surface of the bottom plate through bolts, and one side surface of the base plate is abutted against the bottom of the outer side surface of one side plate of the side die;
the rib plate is a right-angle triangular plate, one right-angle side is fixedly connected with the top surface of the base plate, and the other right-angle side is abutted to the outer side face of one side plate of the side die.
5. The mold for molding the asphalt cured ballast bed test piece according to any one of claims 1 to 4, wherein: the second reinforcing part is arranged at the joint of each adjacent side plate of the side die and is used for reinforcing the strength of the connecting structure between each adjacent side plate of the side die.
6. The mold for molding the asphalt curing roadbed test piece as claimed in claim 5, wherein the number of the second reinforcing members is four, and the four second reinforcing members are respectively arranged at the joints of four adjacent side plates of the side mold, and the second reinforcing members comprise:
one end of the connecting plate is fixedly connected to the top of one end of one side plate, the other end of the connecting plate extends out of the side plate along the length direction of the corresponding side plate, and a through hole is formed in the extending end of the connecting plate;
one end of each screw is fixedly connected to the top of one end of the adjacent side plate close to the connecting plate, and the other end of each screw extends out of the corresponding side plate along the length direction of the corresponding side plate and penetrates through the through hole in the connecting plate;
and the nut is matched and screwed with the extending end of the screw rod.
7. The mold for molding the asphalt cured ballast bed test piece according to claim 6, wherein:
the die cavity formed by the side die and the bottom plate is a cuboid space of 1050mm 500mm 350 mm;
the bump is a cuboid structure with the thickness of 1000mm 110mm 322 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257007.XU CN216816199U (en) | 2021-09-17 | 2021-09-17 | Pitch solidification railway roadbed test piece forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122257007.XU CN216816199U (en) | 2021-09-17 | 2021-09-17 | Pitch solidification railway roadbed test piece forming die |
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| Publication Number | Publication Date |
|---|---|
| CN216816199U true CN216816199U (en) | 2022-06-24 |
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| CN202122257007.XU Active CN216816199U (en) | 2021-09-17 | 2021-09-17 | Pitch solidification railway roadbed test piece forming die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115711786A (en) * | 2022-11-29 | 2023-02-24 | 河北雄安京德高速公路有限公司 | Wheel mill for manufacturing plate type asphalt concrete test piece |
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2021
- 2021-09-17 CN CN202122257007.XU patent/CN216816199U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115711786A (en) * | 2022-11-29 | 2023-02-24 | 河北雄安京德高速公路有限公司 | Wheel mill for manufacturing plate type asphalt concrete test piece |
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