Full-hydraulic tunnel lining trolley height adjusting device capable of automatically folding and unfolding formworks

Abstract

The invention relates to the technical field of trolley height adjustment, in particular to a full-hydraulic tunnel lining trolley height adjusting device capable of automatically collecting and supporting formworks, which comprises a steel frame, a supporting plate is connected to one end of the steel frame, a first oil cylinder is mounted at the upper end of the supporting plate, rollers are mounted at the lower end of the supporting plate, and a second oil cylinder is mounted on the outer side of the steel frame. After hot air enters the outer cover through the blower gun, the auger sheet enables the hot air to move along the winding track of the auger sheet, so that the hot air is in uniform contact with the outer side of the first oil cylinder, the hot air preheats the first oil cylinder, and the hot air is heated to the outside of the first oil cylinder. And the shell is matched to preheat the conveying pipe, so that the viscosity of hydraulic oil can be reduced, the fluidity of the hydraulic oil becomes good, the flowing resistance is reduced, an oil pump is easier to absorb oil, the pressure loss of a hydraulic system is reduced, the output force and the movement speed of the first oil cylinder are improved, and the first oil cylinder ascends more smoothly.

Description

Technical Field

[0001] The present invention relates to the technical field of trolley height adjustment, and particularly to a height adjustment device for a tunnel lining trolley with a fully hydraulic automatic retractable formwork. Background Art

[0002] In tunnel engineering construction, tunnel lining is a key link to ensure the stability and durability of the tunnel structure. As an important equipment for lining construction, the performance of the tunnel lining trolley directly affects the construction quality and efficiency. With the continuous development of tunnel construction technology, higher requirements are put forward for the height adjustment device of the lining trolley.

[0003] When the traditional trolley enters the tunnel before construction, due to the certain difference between the temperature and humidity inside the tunnel and the outside, and this environmental change will affect the performance and lifting accuracy of the trolley lifting cylinder, thus bringing various impacts to the construction preparation and subsequent operations, affecting the construction efficiency, and causing obstacles to the subsequent construction operations. Summary of the Invention

[0004] After the hot air enters the inside of the outer cover through the air gun, the auger blades will make the hot air move along the winding track of the auger blades, so that the hot air evenly contacts the outside of the first cylinder, preheating the first cylinder with the hot air, and cooperating with the outer shell to preheat the delivery pipe, so as to reduce the viscosity of the hydraulic oil, make its fluidity better, reduce the flow resistance, make it easier for the oil pump to absorb oil, reduce the pressure loss of the hydraulic system, thereby improving the output force and movement speed of the first cylinder, and making the first cylinder rise more smoothly.

[0005] To achieve the above object, the present invention provides the following technical solution: A height adjustment device for a tunnel lining trolley with a fully hydraulic automatic retractable formwork, including a steel frame, one end of the steel frame is connected with a support plate, a first cylinder is installed on the upper end of the support plate, rollers are installed on the lower end of the support plate, a second cylinder is installed outside the steel frame, and a baffle is provided at one end of the second cylinder; An outer cover is installed outside the first cylinder, a connecting pipe A is connected to one side of the first cylinder, an air gun is connected to the outside of the outer cover, and one end of the air gun communicates with a housing; A connecting pipe B is connected to the outside of the outer cover, and a deflector is provided at the output end of the connecting pipe B; A collecting groove is connected to the upper end of the baffle, and multiple groups of spoiler plates are rotatably arranged inside the collecting groove.

[0006] Preferably, one end of the support plate is fixedly connected with a guide rod, the support plate is slidably connected with the steel frame through the guide rod, multiple groups of first cylinders are installed on the upper end of the support plate, outer covers are installed outside multiple groups of first cylinders, and the output ends of multiple groups of first cylinders all penetrate through the outer covers and extend to the outside to be connected with the steel frame.

[0007] Preferably, one end of the air gun is connected with a connecting pipe A, the other end of the connecting pipe A is connected with a hot air blower, and the output end of the air gun extends into the outer cover.

[0008] Preferably, a branch pipe is connected to the outside of the connecting pipe A, the other end of the branch pipe is connected with the outer shell, a conveying pipe is arranged inside the outer shell, one end of the conveying pipe is connected with the first oil cylinder, a fixing buckle is connected to the outside of the outer shell, one end of the fixing buckle is connected with a fixing frame, and one end of the fixing frame is connected with the air gun.

[0009] Preferably, a screw blade is fixedly connected to the inner wall of the outer cover, and the screw blade is wound around the outside of the first oil cylinder.

[0010] Preferably, the connecting pipe B penetrates through the outer cover and extends into the interior, and the end of the connecting pipe B connected to the outer cover is located at the end of the screw blade.

[0011] Preferably, a plurality of second oil cylinders are connected to the outside of the steel frame, and the output ends of the plurality of second oil cylinders are connected with a baffle plate.

[0012] Preferably, the baffle plate is located outside the steel frame, guide plates are fixedly connected to both ends of the baffle plate, a gap is arranged between the guide plates and the baffle plate, and the output end of the connecting pipe B and the gap are in the same plane.

[0013] Preferably, the collection tank is connected to the outer wall of the baffle plate, a plurality of air outlet grooves are formed in the upper end of the collection tank, and a spoiler is movably connected to each of the plurality of air outlet grooves, and the blades of the spoiler match the sizes of the air outlet grooves.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: After the hot air enters the interior of the outer cover through the air gun in the present invention, the screw blade will make the hot air move along the winding track of the screw blade, so that the hot air uniformly contacts the outside of the first oil cylinder, preheating the first oil cylinder with the hot air, and cooperating with the preheating of the conveying pipe by the outer shell, so as to reduce the viscosity of the hydraulic oil, improve its fluidity, reduce the flow resistance, make it easier for the oil pump to suck oil, reduce the pressure loss of the hydraulic system, thereby increasing the pushing force of the first oil cylinder, making the rising height of the first oil cylinder more accurate and with strong stability. At the same time, the hot air heating can keep the sealing element in good softness and elasticity, prevent it from becoming hard and brittle due to the low temperature in the tunnel, effectively reduce the risk of sealing element leakage, maintain the pressure stability of the hydraulic system, and ensure the normal operation of the first oil cylinder.

[0015] After the hot air of the present invention is transported outward through the connecting pipe B, the discharged hot air will be guided by the deflector plate so that part of the hot air blows along the outer wall of the baffle, and the remaining hot air will be dissipated around the baffle. As a result, the temperature of the baffle increases due to the action of the hot air. The presence of the hot air makes the surface temperature of the baffle higher than the dew point temperature, blocking the formation conditions of condensed water, avoiding the erosion of the baffle in a humid environment, and thus better withstanding pressure and stress, ensuring the stability of the template positioning accuracy and the lining construction quality, reducing construction errors and rework risks caused by the deformation and damage of the baffle. At the same time, the hot air is dissipated around the baffle, which can prevent the steel structure of the trolley from deforming or loosening due to frost heaving at low temperatures, reducing the jamming of the trolley movement caused by the freezing of components, and ensuring the continuity of construction.

[0016] In the collecting tank of the present invention, the hot air at both ends will be collected, and the hot air will randomly be discharged outward through the air outlet groove, thereby promoting the air circulation inside the tunnel. After the hot air is discharged from the upper end, its characteristic of lower density can cooperate with the ventilation system to form a dual driving force of thermal pressure and wind pressure, accelerating the discharge of humid air inside the tunnel and water vapor generated by concrete curing, reducing the overall humidity, improving the working environment. At the same time, the hot air sprayed upward can increase the temperature of the top area, making the surface temperature of the top higher than the dew point, reducing the generation of condensed water, and avoiding the possible local pitting and uneven strength caused by dripping onto the concrete surface, thus affecting the lining construction quality. Description of the Drawings

[0017] Figure 1 It is the first overall structure diagram of the present invention; Figure 2 It is the second overall structure diagram of the present invention; Figure 3 It is the internal structure sectional view of the collecting tank of the present invention; Figure 4 It is the internal structure diagram of the present invention; Figure 5 It is the partial internal structure diagram of the present invention; Figure 6 It is the first partial structure sectional view of the present invention; Figure 7 It is the second partial structure sectional view of the present invention.

[0018] In the figure: 1, steel frame; 2, support plate; 3, roller; 4, first oil cylinder; 5, conveying pipe; 6, outer cover; 7, auger blade; 8, air gun; 9, connecting pipe A; 10, housing; 11, fixing buckle; 12, fixing frame; 13, branch pipe; 14, connecting pipe B; 15, second oil cylinder; 16, baffle; 17, deflector plate; 18, collecting tank; 19, air outlet groove; 20, spoiler. Detailed Embodiments

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0020] Referring to Figure 1-7 , the present invention provides a height adjustment device for a tunnel lining trolley with a fully hydraulic automatic retractable formwork, which includes a steel frame 1. One end of the steel frame 1 is connected to a support plate 2. A first oil cylinder 4 is installed at the upper end of the support plate 2, and rollers 3 are installed at the lower end of the support plate 2. A second oil cylinder 15 is installed outside the steel frame 1, and a baffle 16 is provided at one end of the second oil cylinder 15; An outer cover 6 is installed outside the first oil cylinder 4. A connecting pipe A9 is connected to one side of the first oil cylinder 4. A pneumatic drill 8 is connected to the outside of the outer cover 6, and one end of the pneumatic drill 8 communicates with a housing 10; A connecting pipe B14 is connected to the outside of the outer cover 6, and a deflector 17 is provided at the output end of the connecting pipe B14; A collecting groove 18 is connected to the upper end of the baffle 16, and multiple groups of flow disturbing vanes 20 rotate inside the collecting groove 18.

[0021] In an alternative embodiment, a guide rod is fixedly connected to one end of the support plate 2. The support plate 2 is slidably connected to the steel frame 1 through the guide rod. Multiple groups of first oil cylinders 4 are installed at the upper end of the support plate 2. Outer covers 6 are installed outside multiple groups of first oil cylinders 4. The output ends of multiple groups of first oil cylinders 4 all penetrate through the outer covers 6 and extend to the outside to be connected to the steel frame 1. When using the equipment, the equipment is moved through the rollers 3. When using the equipment, the steel frame 1 is jacked up by the drive of the first oil cylinder 4, thereby changing the height of the equipment. At the same time, the whole equipment can be spliced by bolts, so as to determine the required length of the equipment according to the actual situation, and its length is controlled within 5-7 meters.

[0022] In an alternative embodiment, one end of the pneumatic drill 8 is connected to a connecting pipe A9, and the other end of the connecting pipe A9 is connected to a hot air blower. The output end of the pneumatic drill 8 extends into the outer cover 6. When the equipment enters the pipeline, the hot air blower is turned on synchronously. The hot air blower will transport hot air through the connecting pipe A9, and then transport the hot air into the outer cover 6 through the pneumatic drill 8.

[0023] In an alternative embodiment, a branch pipe 13 is connected to the outside of the connecting pipe A9, and the other end of the branch pipe 13 is connected to the housing 10. A conveying pipe 5 is arranged inside the housing 10. One end of the conveying pipe 5 is connected to the first oil cylinder 4. A fixing buckle 11 is connected to the outside of the housing 10. One end of the fixing buckle 11 is connected to a fixing frame 12, and one end of the fixing frame 12 is connected to the air gun 8. From the above, when the hot air blower conveys hot air through the connecting pipe A9, part of the hot air will enter the inside of the housing 10 through the branch pipe 13. After the hot air enters the inside of the housing 10, the housing 10 will conduct the heat of the hot air outward, so that the heat dissipated by the housing 10 preheats the conveying pipe 5.

[0024] In an alternative embodiment, a auger blade 7 is fixedly connected to the inner wall of the outer cover 6. The auger blade 7 is wound around the outside of the first oil cylinder 4. After the hot air enters the inside of the outer cover 6 through the air gun 8, the auger blade 7 will make the hot air move along the winding track of the auger blade 7, so that the hot air uniformly contacts the outside of the first oil cylinder 4, and the hot air preheats the first oil cylinder 4. And in cooperation with the preheating of the conveying pipe 5 by the housing 10, the viscosity of the hydraulic oil can be reduced, its fluidity can be improved, the flow resistance can be reduced, the oil pump can absorb oil more easily, the pressure loss of the hydraulic system can be reduced, so as to improve the pushing force of the first oil cylinder 4 upwards, make the rising height of the first oil cylinder 4 more accurate, and have strong stability. At the same time, the hot air heating can keep the sealing parts in good softness and elasticity, prevent them from becoming hard and brittle due to the low temperature in the tunnel, effectively reduce the risk of leakage of the sealing parts, maintain the pressure stability of the hydraulic system, and ensure the normal operation of the first oil cylinder 4.

[0025] In an alternative embodiment, the connecting pipe B14 penetrates through the outer cover 6 and extends to the inside. One end of the connecting pipe B14 connected to the outer cover 6 is located at the end of the auger blade 7. From the above, after the hot air enters the inside of the outer cover 6 and flows in a winding manner through the auger blade 7, the hot air moving to the end of the auger blade 7 will enter the inside of the connecting pipe B14, and then be conveyed outward through the connecting pipe B14.

[0026] In an alternative embodiment, a plurality of groups of second oil cylinders 15 are connected to the outside of the steel frame 1. The output ends of the plurality of groups of second oil cylinders 15 are connected to the baffle 16. When the equipment rises to a certain height, the angles on both sides of the baffle 16 can be adjusted by the plurality of groups of second oil cylinders 15, so as to adapt to different tunnel environments.

[0027] In an alternative embodiment, the baffle 16 is located outside the steel frame 1. The two ends of the baffle 16 are fixedly connected to the flow guide plates 17. A gap is provided between the flow guide plates 17 and the baffle 16. The output end of the connecting pipe B14 and the gap are in the same plane. After the hot air is transported outward through the connecting pipe B14, it will enter the gap between the flow guide plates 17 and the baffle 16. The flow guide plates 17 have a curvature matching that of the baffle 16. Thus, when the hot air enters the gap, the discharged hot air will be guided by the flow guide plates 17 so that part of the hot air blows along the outer wall of the baffle 16, and the remaining part of the hot air will be dissipated around the baffle 16. As a result, the temperature of the baffle 16 rises due to the action of the hot air. The presence of the hot air makes the surface temperature of the baffle 16 higher than the dew point temperature, blocking the formation conditions of condensed water, avoiding the erosion of the baffle 16 in a humid environment, and thus better withstanding pressure and stress, ensuring the stability of the template positioning accuracy and lining construction quality, reducing construction errors and rework risks caused by the deformation and damage of the baffle 16. At the same time, the hot air is dissipated around the baffle 16, which can prevent the steel structure of the trolley from deforming or loosening due to frost heaving at low temperatures, reducing the jamming of the trolley movement caused by the freezing of components, ensuring the continuity of construction. At the same time, the size of the flow guide plates 17 can be selected according to the actual situation to ensure that the hot air blown along the flow guide plates 17 can enter the interior of the collection trough 18 after passing through the outer surface of the baffle 16.

[0028] In an alternative embodiment, the collection trough 18 is connected to the outer wall of the baffle 16. A plurality of air outlet grooves 19 are provided at the upper end of the collection trough 18. A spoiler 20 is movably connected inside each of the plurality of air outlet grooves 19. The blades of the spoiler 20 match the size of the air outlet grooves 19. As described above, when part of the hot air blows along the outer wall of the baffle 16, it will enter the interior of the collection trough 18. The collection trough 18 will collect the hot air at both ends, thereby forming a convection inside the collection trough 18. After the convection is formed inside the collection trough 18, the hot air will be discharged outward through the air outlet grooves 19 at the upper end of the collection trough 18. When the hot air is discharged, it will drive the spoiler 20 to rotate. Thus, when the spoiler 20 rotates, it will randomly block the air outlet grooves 19, so that the hot air is randomly discharged outward through the air outlet grooves 19. When the hot air is discharged through the air outlet grooves 19, the wind direction changes frequently, promoting the dispersion of the wind direction in all directions. At the same time, the rotation of the spoiler 20 can further promote the diffusion of the hot air, improve the utilization rate of the hot air, and thus promote the air circulation inside the tunnel. Therefore, after the hot air is discharged from the upper end, its low density characteristic can cooperate with the ventilation system to form a dual driving force of thermal pressure and wind pressure, accelerating the discharge of the humid air inside the tunnel and the water vapor generated by concrete curing, reducing the overall humidity, and improving the working environment. At the same time, the hot air sprayed upward can increase the temperature of the top area, making the surface temperature of the top higher than the dew point, reducing the generation of condensed water, and avoiding the possible local pitting and uneven strength caused by dripping onto the concrete surface, which may affect the lining construction quality. The collection trough 18 and the flow guide plates 17 can be disassembled and can be disassembled according to the actual situation during pouring.

[0029] Working principle: When using the device, the device is moved by the roller 3. When using the device, the steel frame 1 is lifted by the drive of the first oil cylinder 4, so as to change the height of the device. When the device rises to a certain height, the angles on both sides of the baffle 16 can be adjusted by multiple groups of second oil cylinders 15, so as to adapt to different tunnel environments. At the same time, the whole device can be spliced by bolts, so that the required length of the device can be determined according to the actual situation; When the device enters the pipeline, the hot air blower is turned on synchronously. The hot air blower will transport hot air through the connecting pipe A9, and then transport the hot air to the inside of the outer cover 6 through the air gun 8. When the hot air blower transports hot air through the connecting pipe A9, part of the hot air will enter the inside of the outer shell 10 through the branch pipe 13. After the hot air enters the inside of the outer shell 10, the outer shell 10 will conduct the heat of the hot air outward, so that the heat dissipated by the outer shell 10 preheats the conveying pipe 5. After the hot air enters the inside of the outer cover 6 through the air gun 8, the auger blade 7 will make the hot air move along the winding track of the auger blade 7, so that the hot air evenly contacts the outside of the first oil cylinder 4, and the hot air preheats the first oil cylinder 4; After the hot air enters the inside of the outer cover 6 and flows in a winding manner through the auger blade 7, the hot air moving to the end of the auger blade 7 will enter the connecting pipe B14 and be transported outward through the connecting pipe B14. After the hot air is transported outward through the connecting pipe B14, it will enter the gap between the deflector 17 and the baffle 16. The deflector 17 has an arc matching the baffle 16. Therefore, when the hot air enters the gap, the discharged hot air will make part of the hot air blow along the outer wall of the baffle 16 through the deflection of the deflector 17, and the remaining part of the hot air will be dissipated around the baffle 16, so that the temperature of the baffle 16 rises due to the action of the hot air; When part of the hot air blows along the outer wall of the baffle 16, it will enter the collection tank 18. The collection tank 18 will collect the hot air at both ends, so as to form a convection inside the collection tank 18. After the hot air forms a convection inside the collection tank 18, it will be discharged outward through the air outlet groove 19 at the upper end of the collection tank 18. When the hot air is discharged, it will drive the spoiler 20 to rotate, so that when the spoiler 20 rotates, it will randomly block the air outlet groove 19, so that the hot air is randomly discharged outward through the air outlet groove 19, thereby promoting the air circulation inside the tunnel.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A height adjustment device for a tunnel lining jumbo with a fully hydraulic automatic retractable formwork, comprising a steel frame (1), characterized in that, One end of the steel frame (1) is connected to a support plate (2). A first oil cylinder (4) is installed at the upper end of the support plate (2), and rollers (3) are installed at the lower end of the support plate (2). A second oil cylinder (15) is installed outside the steel frame (1), and a baffle (16) is provided at one end of the second oil cylinder (15); An outer cover (6) is installed outside the first oil cylinder (4). A connecting pipe A (9) is connected to one side of the first oil cylinder (4). A pneumatic gun (8) is connected to the outside of the outer cover (6), and one end of the pneumatic gun (8) communicates with a housing (10); A connecting pipe B (14) is connected to the outside of the outer cover (6), and a deflector (17) is provided at the output end of the connecting pipe B (14); A collection trough (18) is connected to the upper end of the baffle (16), and multiple groups of flow disturbance vanes (20) rotate inside the collection trough (18).

2. The height adjustment device of the tunnel lining jumbo with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that, One end of the support plate (2) is fixedly connected to a guide rod. The support plate (2) is slidably connected to the steel frame (1) through the guide rod. Multiple groups of first oil cylinders (4) are installed at the upper end of the support plate (2). Outer covers (6) are installed outside multiple groups of the first oil cylinders (4). The output ends of multiple groups of the first oil cylinders (4) all penetrate through the outer covers (6) and extend to the outside to be connected to the steel frame (1).

3. The height adjustment device of the tunnel lining trolley with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that, One end of the pneumatic gun (8) is connected to a connecting pipe A (9). The other end of the connecting pipe A (9) is connected to a hot air blower. The output end of the pneumatic gun (8) extends into the outer cover (6).

4. The height adjustment device of the tunnel lining trolley with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that, A branch pipe (13) is connected to the outside of the connecting pipe A (9). The other end of the branch pipe (13) is connected to the housing (10). A delivery pipe (5) is arranged inside the housing (10). One end of the delivery pipe (5) is connected to the first oil cylinder (4). A fixing buckle (11) is connected to the outside of the housing (10). One end of the fixing buckle (11) is connected to a fixing frame (12). One end of the fixing frame (12) is connected to the pneumatic gun (8).

5. The height adjustment device of the tunnel lining trolley with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that A screw blade (7) is fixedly connected to the inner wall of the outer cover (6), and the screw blade (7) is wound around the outside of the first oil cylinder (4).

6. The height adjustment device of the tunnel lining jumbo with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that, The connecting pipe B (14) penetrates through the outer cover (6) and extends into the inside. The end of the connecting pipe B (14) connected to the outer cover (6) is located at the end of the screw blade (7).

7. The height adjustment device of the tunnel lining trolley with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that, Multiple groups of second oil cylinders (15) are connected to the outside of the steel frame (1), and the output ends of multiple groups of the second oil cylinders (15) are connected to the baffle (16).

8. The height adjusting device of the tunnel lining jumbo with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that, The baffle (16) is located outside the steel frame (1). Deflectors (17) are fixedly connected to both ends of the baffle (16). A gap is provided between the deflector (17) and the baffle (16). The output end of the connecting pipe B (14) and the gap are in the same plane.

9. The height adjustment device of the tunnel lining jumbo with a fully hydraulic automatic retractable formwork according to claim 1, characterized in that, The collection trough (18) is connected to the outer wall of the baffle (16). Multiple air outlet slots (19) are opened at the upper end of the collection trough (18). Flow disturbance vanes (20) are movably connected inside multiple groups of the air outlet slots (19), and the blades of the flow disturbance vanes (20) match the sizes of the air outlet slots (19).

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