Sleeper steam curing tool
By designing a steam curing fixture for railway sleepers, and utilizing a porous placement limit component and support column, uniform steam curing of railway sleepers under constant temperature and humidity conditions was achieved. This solved the problem of ineffective steam circulation and improved the curing effect and temperature control accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing steam curing process for railway sleepers, steam cannot circulate effectively on the bottom surface of the sleepers, resulting in uneven surface curing. In addition, it is necessary to cover the sleepers with insulation cloth to reduce heat loss, which affects the accuracy of temperature control.
A steam curing fixture for railway sleepers was designed, including a constant temperature and humidity incubator, a steam curing device, a vertical roller, a multi-hole placement and limiting component, and a nozzle. The steam is uniformly delivered to the surface of the sleeper through the conveying component, and the bottom contact area is reduced by the multi-hole placement and limiting component and the support column, so as to achieve uniform curing of the sleeper in a constant temperature and humidity environment.
It improves the uniformity of steam curing on the sleeper surface, reduces the risk of cracking or peeling, and eliminates the need for insulation cloth, making temperature control more accurate.
Smart Images

Figure CN224103177U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of sleeper steam curing, in particular to a kind of tooling of sleeper steam curing. BACKGROUND
[0002] The main role of concrete sleeper is to support steel rail and keep the stability of steel rail position. When the train with hundreds, thousands or even tens of thousands of tons of load passes through the line quickly, it will cause great impact on the line. Concrete sleeper can transfer the great pressure from the train to the track bed to prevent the steel rail from sinking due to excessive pressure.
[0003] The prior art needs to carry out steam curing on the sleeper, which can provide a humid and hot environment for the sleeper to ensure that its temperature and humidity are properly adjusted, thereby ensuring the quality stability of the sleeper. Through steam curing, the hardness and density of the sleeper are enhanced, and the overall load-bearing capacity and anti-aging ability are improved.
[0004] The specific curing process includes the following steps:
[0005] (1) arrange and place a plurality of sleepers in order on the ground in the curing room;
[0006] (2) cover all sleepers with thermal blanket and press the edges of the thermal blanket tightly to reduce heat loss in the subsequent steam curing process, which can also reduce water evaporation and promote the hydration reaction of concrete;
[0007] (3) connect the gas output end of the steam curing device to the hose, and then stretch and place the hose inside the thermal blanket;
[0008] (4) continuously pass steam into the covered area of the thermal blanket to achieve batch curing of sleepers;
[0009] The bottom surface of the sleeper in the above steps is in close contact with the ground during the curing process, so that the steam cannot effectively circulate on the bottom surface, and the uniformity of the steam curing on the surface needs to be improved. UTILITY MODEL CONTENTS
[0010] The utility model aims to solve the problem in the background art, and further provides a tooling for sleeper steam curing.
[0011] The utility model solves the technical problem by adopting the following technical scheme:
[0012] A tooling for sleeper steam curing, comprising a base, a constant temperature and humidity incubator, a steam curing device, a conveying assembly, a vertical roller, a driving assembly, a multi-hole placement limiting assembly, a support column, a curing pipe and a spray head,
[0013] The constant-temperature and constant-humidity incubator and the steam curing device are fixed on the base, and the steam curing device is communicated with the inside of the constant-temperature and constant-humidity incubator through the conveying assembly, and the constant-temperature and constant-humidity incubator comprises double doors;
[0014] The vertical roller is rotationally connected in the constant-temperature and constant-humidity incubator, and one end of the vertical roller penetrates through the constant-temperature and constant-humidity incubator and is connected with a driving assembly fixed on the constant-temperature and constant-humidity incubator;
[0015] A plurality of groups of porous placement limiting assemblies are arranged on the vertical roller along the height direction, and each group of porous placement limiting assemblies is distributed about the circumference of the vertical roller;
[0016] A plurality of support columns are fixed on the porous placement limiting assembly;
[0017] A plurality of curing pipes provided with nozzles are communicated with the conveying assembly, and the curing pipes are staggered and parallel with the porous placement limiting assemblies.
[0018] Further, each group of the porous placement limiting assemblies comprises four porous placement limiting assemblies, the porous placement limiting assembly comprises a porous placement plate and a porous limiting plate, the porous limiting plate is above the porous placement plate and is symmetrically distributed about the porous placement plate, and a plurality of support columns are fixed on the porous placement plate.
[0019] Further, the bottom of the porous placement plate is fixed with a plurality of steel bars staggered with the through holes thereof.
[0020] The above scheme can significantly improve the bearing strength of the porous placement plate by the steel bars to prolong the service life.
[0021] Further, an outer shell covering the outside of the driving assembly is fixed on the constant-temperature and constant-humidity incubator, and the outer shell is provided with heat dissipation holes, and the driving assembly adopts a gear transmission assembly.
[0022] The outer shell in the above scheme can hide the driving assembly, so that the appearance of the design is more beautiful and does not affect the heat dissipation.
[0023] Further, the conveying assembly comprises a conveying pipe and a main pipe, the gas output end of the steam curing device is communicated with the conveying pipe, the conveying pipe penetrates through the constant-temperature and constant-humidity incubator and is connected with the main pipe in the constant-temperature and constant-humidity incubator, the main pipe is provided with a plurality of curing pipes, and the nozzles are vertically upwardly fixed on the curing pipes.
[0024] The above scheme can effectively convey the steam continuously generated in the working process of the steam curing device to the inside of the constant-temperature and constant-humidity incubator for sleeper curing.
[0025] Further, a reinforcing plate is welded between the vertical roller and the porous placement limiting assembly.
[0026] Further, an electric forklift for loading and unloading is further included.
[0027] The above scheme realizes the taking and placing of sleepers on the multi-hole placing limiting assembly by the electric forklift in a semi-automatic manner.
[0028] Compared with the prior art, the utility model has the advantages that:
[0029] Compared with the prior art, the device can steam curing the sleepers in a constant temperature and humidity environment, without covering the heat preservation cloth, so that the temperature control is more accurate, and the risk of cracking or peeling of the sleepers after curing is reduced. In addition, the bottom of the sleeper is placed high and the contact area is reduced during the steam curing process, so that the steam can flow effectively on the bottom surface, and the holes in the multi-hole placing limiting assembly can allow the steam to pass through, so that the curing uniformity of each surface of the sleeper is better. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is an internal structure diagram of the utility model;
[0031] Figure 2 It is a front view of the utility model;
[0032] Reference signs:
[0033] 1, base; 2, constant temperature and humidity incubator; 3, steam curing device; 4, vertical roller; 5, driving assembly; 6, multi-hole placing plate; 7, multi-hole limiting plate; 8, support column; 9, curing pipe; 10, spray head; 11, steel bar; 12, shell; 13, conveying pipe; 14, main pipe; 15, double-door. DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. The utility model will be further described in combination with the drawings and embodiments:
[0035] As shown in Figure 1 and Figure 2 , a sleeper steam curing tool, comprising a base 1, a constant temperature and humidity incubator 2 (belonging to the prior art, the constant temperature and humidity control principle is not described, and the constant temperature and humidity assembly is not shown in the figure), a steam curing device 3 (belonging to the prior art without improvement), a conveying assembly, a vertical roller 4, a driving assembly 5, a multi-hole placing limiting assembly, a support column 8, a curing pipe 9, and a spray head 10,
[0036] The constant temperature and humidity incubator 2 and the steam curing device 3 are both fixed on the base 1, and the steam curing device 3 is connected to the inside of the constant temperature and humidity incubator 2 through the conveying component. The constant temperature and humidity incubator 2 includes a double door 15.
[0037] The vertical roller 4 is rotatably connected inside the constant temperature and humidity incubator 2, and one end of the vertical roller 4 extends out of the constant temperature and humidity incubator 2 and is connected to the drive assembly 5 fixed on the constant temperature and humidity incubator 2;
[0038] Several sets of perforated placement limiting components are arranged on the vertical roller 4 along the height direction, and each set of perforated placement limiting components is distributed about the circumference of the vertical roller 4.
[0039] Several support columns 8 are fixed on the multi-hole placement and limiting component;
[0040] Several maintenance pipes 9 equipped with nozzles 10 are connected to the conveying assembly, and the maintenance pipes 9 are staggered and parallel to the porous placement and limiting assembly.
[0041] Further refinements of the embodiments of this utility model, such as... Figure 1 As shown, each set of multi-hole placement limiting components includes four components, including a multi-hole placement plate 6 and a multi-hole limiting plate 7. The multi-hole limiting plate 7 is located above the multi-hole placement plate 6 and is symmetrically distributed about the multi-hole placement plate 6. Several support columns 8 are fixed on the multi-hole placement plate 6.
[0042] A further refinement of the embodiment of this utility model includes an electric forklift for loading and unloading materials, which is not shown in the figure.
[0043] Further refinements of the embodiments of this utility model, such as... Figure 1 As shown, the conveying assembly includes a conveying pipe 13 and a main pipe 14. The gas output end of the steam curing device 3 is connected to the conveying pipe 13. The conveying pipe 13 passes through the constant temperature and humidity incubator 2 and is connected to the main pipe 14 inside the constant temperature and humidity incubator 2. Several curing pipes 9 are provided on the main pipe 14, and the nozzle 10 is fixed vertically upward on the curing pipe 9.
[0044] Further optimizations to the embodiments of this utility model, such as... Figure 1 As shown, a reinforcing plate is welded between the vertical roller 4 and the multi-hole placement limiting assembly, and a number of steel strips 11 are fixed at the bottom of the multi-hole placement plate 6, which are distributed alternately with its through holes.
[0045] Further optimizations to the embodiments of this utility model, such as... Figure 1 and Figure 2 As shown, the constant temperature and humidity incubator 2 is fixed with a shell 12 covering the outside of the drive assembly 5, and the shell 12 is provided with heat dissipation holes. The drive assembly 5 adopts a gear transmission assembly. The gear transmission assembly is the prior art and its principle will not be described.
[0046] It should be noted that the constant temperature and humidity incubator 2, the steam curing device 3 and the driving assembly 5 are electrically connected with the controller, and the controller is not labeled in the figure.
[0047] The working process of the utility model is:
[0048] Firstly, the sleepers are placed in the front side of the multiple-hole placing plate 6 from one column to the outside (as shown in the description) by the electric forklift, and the two sides of the sleepers are in contact with the multiple-hole limiting plate 7 and the bottom of the sleepers is in contact with the support column 8 during the placing process. Figure 1 When the last column of sleepers is placed, the electric forklift first moves away from the multiple-hole placing plate 6, and then the driving assembly 5 is controlled by the controller to work, so that the vertical roller 4 can be driven to rotate at a fixed angle (i.e. 90 degrees) according to the pre-set program, and then the other empty multiple-hole placing plate 6 will move to the position facing the outside, and the above process is repeated to place the sleepers in one column again.
[0049] When all the sleepers are loaded, the double doors 15 are manually closed, and then the driving assembly 5 is controlled by the controller to continuously work, so that the sleepers can rotate at a constant speed, and at the same time, the steam curing device 3 is controlled by the controller to work, so that the steam injection curing process can be carried out on each sleeper in turn.
[0050] At the same time, the steam curing process is carried out in a constant temperature and humidity environment, so that the temperature and humidity control is accurate, and the situation of being too high or too low does not occur, and the risk of cracking or peeling of the sleepers after curing is greatly reduced.
[0051] Compared with the prior art, the device can carry out steam curing on the sleepers in a constant temperature and humidity environment, without covering the heat preservation cloth, so that the temperature control is more accurate, and the risk of cracking or peeling of the sleepers after curing is reduced.
[0052] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A tool for steam curing of sleepers, characterized in that, The base (1), constant temperature and humidity incubator (2), steam curing device (3), conveying assembly, vertical roller (4), drive assembly (5), porous placement limiting assembly, support column (8), curing pipe (9) and spray head (10), The constant temperature and humidity incubator (2) and the steam curing device (3) are fixed on the base (1), and the steam curing device (3) is connected to the inside of the constant temperature and humidity incubator (2) through the conveying assembly, and the constant temperature and humidity incubator (2) includes a double-door (15); The vertical roller (4) is rotatably connected inside the constant temperature and humidity incubator (2), and one end of the vertical roller (4) penetrates through the constant temperature and humidity incubator (2) and is connected with the drive assembly (5) fixed on the constant temperature and humidity incubator (2); A plurality of groups of porous placement limiting assemblies are arranged on the vertical roller (4) in the height direction, and each group of porous placement limiting assemblies is distributed about the circumference of the vertical roller (4); A plurality of support columns (8) are fixed on the porous placement limiting assembly; A plurality of curing pipes (9) provided with spray heads (10) are all connected to the conveying assembly, and the curing pipes (9) and the porous placement limiting assemblies are staggered and parallelly distributed.
2. The tooling for steam curing of railroad ties of claim 1, wherein, Each group of the porous placement limiting assemblies includes four, the porous placement limiting assembly includes a porous placement plate (6) and a porous limiting plate (7), the porous limiting plate (7) is above the porous placement plate (6) and is symmetrically distributed about the porous placement plate (6), and a plurality of support columns (8) are fixed on the porous placement plate (6).
3. The tooling for steam curing of railroad ties of claim 2, wherein, The bottom of the porous placement plate (6) is fixed with a plurality of steel bars (11) staggered with through holes.
4. The device according to claim 1, wherein The constant temperature and humidity incubator (2) is fixed with an outer shell (12) covering the outside of the drive assembly (5), and the outer shell (12) is provided with a plurality of heat dissipation holes, and the drive assembly (5) adopts a gear transmission assembly.
5. The device according to claim 1, wherein The conveying assembly includes a conveying pipe (13) and a main pipe (14), the gas output end of the steam curing device (3) is connected to the conveying pipe (13), the conveying pipe (13) penetrates through the constant temperature and humidity incubator (2) and is connected with the main pipe (14) inside the constant temperature and humidity incubator (2), the main pipe (14) is provided with a plurality of curing pipes (9), and the spray head (10) is vertically upwardly fixed on the curing pipe (9).
6. The device according to claim 1, wherein The vertical roller (4) and the porous placement limiting assembly are welded and additionally provided with a reinforcing plate therebetween.
7. The tie steam curing tool of claim 1, wherein, It also includes an electric forklift for loading and unloading.