A vibratory compaction device for concrete construction of double-block ballastless track slabs.

Abstract

This invention discloses a vibration device for concrete construction of double-block ballastless track slabs, comprising a vibration vehicle slidably mounted above the double-block ballastless track. The vibration vehicle includes a traveling wheel unit and a vehicle body mounted above the traveling wheel unit. The vehicle body includes a vehicle frame, a transverse moving frame unit slidably mounted within the vehicle frame, and a placement platform mounted above the front end of the vehicle frame. Multiple rebar scanning radars are respectively mounted on the two sides of the transverse moving frame unit. First vibrator units for vibrating the concrete at the bottom of the sleepers are respectively fixedly mounted at the two ends below the transverse moving frame unit. Second vibrator units for vibrating the concrete on both sides of the track bed are respectively fixedly mounted on both sides of the transverse moving frame unit. A control platform and a battery are mounted above the placement platform. The traveling wheel unit, transverse moving frame unit, rebar scanning radar, first vibrator unit, and second vibrator unit are all electrically connected to the control platform and powered by the battery.

Description

Technical Field

[0001] This invention relates to the field of rail transit, and in particular to a vibratory compaction device for the construction of concrete slabs for double-block ballastless track. Background Technology

[0002] Twin-block ballastless track is constructed by assembling prefabricated twin-block sleepers into track panels. The sleepers are then poured into a uniform and continuous reinforced concrete track bed using on-site concrete casting. During the on-site construction of the twin-block ballastless track track slab concrete, specialized hoisting equipment is typically used to lift hoppers filled with concrete to the top of the track panels, which are then poured into the formwork from the center of the track bed. The sides are poured after the bottom of the twin-block sleepers is completed. An immersion vibrator is used to compact the concrete during pouring. Currently, handheld vibrators are commonly used in concrete pouring. These vibrators have a compaction range of approximately 300mm, and the front end is made of metal and cannot be bent. This leads to under-vibration of the concrete under the twin-block sleepers during track slab pouring. Furthermore, after each concrete compaction, workers must move the vibrator to the next pouring point, causing concrete to spill everywhere. The heavy vibrator also results in low concrete pouring efficiency. Therefore, traditional concrete pouring equipment cannot meet the construction requirements of double-block ballastless track concrete pouring, and has significant functional limitations. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a vibrating device for the construction of concrete slabs of double-block ballastless track. It has a simple structure, a high degree of automation, and can be intelligently poured. Compared with the immersion vibrator, the vibration efficiency and accuracy are greatly improved. At the same time, the transverse telescopic vibrator can freely extend and retract in the horizontal direction to the bottom of the sleeper for vibration, and there is no problem of the concrete under the double-block sleeper being missed. After the pouring is completed, the vibrating device is automatically controlled to move, so as not to cause concrete to spill everywhere.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a vibration device for concrete construction of double-block ballastless track slabs, comprising a vibration vehicle slidably disposed above the double-block ballastless track, the vibration vehicle comprising a traveling wheel unit slidably disposed on the left and right sides of the double-block ballastless track and a vehicle body disposed above the traveling wheel unit, the vehicle body comprising a vehicle body frame, a transverse moving frame unit slidably disposed within the vehicle body frame and a placement platform disposed at the front end above the vehicle body frame, multiple rebar scanning radars respectively disposed on the two sides of the transverse moving frame unit, a first vibrator unit for vibrating the concrete at the bottom of the sleepers respectively fixedly disposed at the two ends below the transverse moving frame unit, a second vibrator unit for vibrating the concrete on both sides of the track bed respectively fixedly disposed on both sides of the vehicle body, a control platform and a storage battery disposed above the placement platform, the traveling wheel unit, the transverse moving frame unit, the rebar scanning radar, the first vibrator unit and the second vibrator unit being electrically connected to the control platform and powered by the storage battery.

[0005] A further improvement of the technical solution of the present invention is that: a steel rail is provided above the double-block ballastless track; the traveling wheel unit includes a traveling wheel slidably disposed above the steel rail and auxiliary wheels slidably disposed on both sides of the rail web; T-shaped connecting frames are rotatably disposed at both ends of the traveling wheel; auxiliary wheels are rotatably disposed at both ends of the T-shaped connecting frame and the auxiliary wheels are in contact with the rail web; a first stepper motor connected to the control platform is fixedly disposed below the placement platform; a first gear is disposed on the output shaft of the first stepper motor; and a second gear meshing with the first gear is disposed inside the traveling wheel.

[0006] A further improvement of the technical solution of the present invention is that: the vehicle frame includes two longitudinal slide rails and two transverse rails, the longitudinal slide rails are provided with slide rail teeth in the upper and lower parts, the transverse moving frame unit includes a hollow transverse moving frame and a second stepper motor fixedly installed at the inner end of the transverse moving frame and connected to the control platform, and the output shaft of the second stepper motor is provided with a third gear that meshes and slides with the slide rail teeth.

[0007] A further improvement of the technical solution of the present invention is that: the first vibrator unit includes a hollow base fixedly installed below the transverse moving frame, a hydraulic motor connected to the control platform is installed inside the hollow base, a vertical telescopic device is fixedly installed below the hollow base, the telescopic end of the vertical telescopic device is connected to the transverse telescopic vibrator through a rotary motor, and a vibration motor is built into the end of the transverse telescopic vibrator. Both the vertical telescopic device and the transverse telescopic vibrator adopt telescopic sleeve hydraulic cylinders, and the vertical telescopic device, the rotary motor and the transverse telescopic vibrator are all powered by hydraulic motors.

[0008] A further improvement of the technical solution of the present invention is that: the second vibrator unit includes a hollow bracket fixedly installed on the side of the vehicle body, a hydraulic motor is installed inside the hollow bracket, a vertical telescopic sleeve hydraulic cylinder is installed at the end of the hollow bracket, and a vibration motor is built into the end of the vertical telescopic sleeve hydraulic cylinder, and the vertical telescopic sleeve hydraulic cylinder is powered by the hydraulic motor.

[0009] A further improvement of the technical solution of the present invention is that: the two sides of the vehicle body are provided with limiting devices, the limiting devices include a T-shaped limiting frame provided on the side of the vehicle body, a limiting telescopic sleeve hydraulic cylinder fixedly provided under the vehicle body, and a hydraulic motor that provides power to the limiting telescopic sleeve hydraulic cylinder. The telescopic end of the limiting telescopic sleeve hydraulic cylinder is fixedly connected to the T-shaped limiting frame, and the two ends of the T-shaped limiting frame are in contact with the side of the vehicle body and the web of the rail respectively.

[0010] A further improvement to the technical solution of the present invention is that rubber is provided at both ends of the L-shaped limiting frame that contact the side of the vehicle body and the web of the rail.

[0011] A further improvement to the technical solution of the present invention is that handles are provided on the two sides of the vehicle body.

[0012] The technological advancements achieved by this invention due to the adoption of the above technical solutions are as follows:

[0013] 1. The present invention has a simple structure, a high degree of automation, and can be intelligently poured. Compared with the immersion vibrator, the vibration efficiency and accuracy are greatly improved. At the same time, the transverse telescopic vibrator can freely extend and retract in the horizontal direction to the bottom of the sleeper for vibration. There is no problem of the concrete under the double-block sleeper being under-vibrated. After the pouring is completed, the vibrating device is automatically controlled to move, which will not cause concrete to spill everywhere.

[0014] 2. In order to save labor costs, the vibrating device of this invention is equipped with an electric traveling wheel unit. Since the upper surface of the rail is relatively smooth, there is a risk of instability if the traveling wheel is designed alone. Therefore, this invention sets auxiliary wheels on both sides of the traveling wheel. Since the auxiliary wheels on both sides are in contact with the rail web, the stability of the traveling wheel is greatly increased. The first stepper motor connected to the gear of the traveling wheel is controlled by the control platform to realize the automatic movement of the traveling wheel unit.

[0015] 3. This invention controls the transverse moving frame to move back and forth along the longitudinal direction, so that the two first vibrator units can completely vibrate the concrete under the double-block sleeper, thus avoiding the occurrence of missed vibration.

[0016] 4. The present invention is equipped with a retractable first vibrator unit. When the vertical expansion joint drives the horizontal expansion vibrator to move downward to the space between the steel reinforcement mesh at both ends of the track panel, the two horizontal expansion vibrators are controlled to extend horizontally to the bottom of the sleeper. The rotary motor and the vibration motor of the horizontal expansion vibrator are started to rotate and vibrate the concrete at the bottom of the sleeper to ensure that the concrete at the bottom of the sleeper and other concealed parts are completely vibrated.

[0017] 5. The present invention also provides a second vibrator unit for vibrating the concrete on both sides of the track bed, which vibrates the concrete on both sides of the track bed while vibrating the concrete at the bottom of the sleeper, ensuring that the concrete at the bottom of the sleeper and other concealed parts is completely vibrated.

[0018] 6. To prevent the traveling wheel unit from moving during vibration, the present invention is equipped with a limiting device. By controlling the extension end of the limiting telescopic sleeve hydraulic cylinder to retract inward, the two ends of the T-shaped limiting frame contact the side of the placement platform and the rail web respectively, and the traveling wheel unit is further braked by the friction of the rubber. Attached Figure Description

[0019] Figure 1 This is a three-dimensional diagram of the overall structure of the present invention;

[0020] Figure 2 This is a side view of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the walking wheel unit structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the connection between the walking wheel and the first stepper motor of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection between the transverse moving frame unit and the longitudinal sliding frame of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the first vibrator unit of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the second vibrator unit of the present invention;

[0026] Figure 8 This is a schematic diagram of the limiting device structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the overall structure and working state of the present invention;

[0028] The components include: 1. Double-block ballastless track; 2. Walking wheel unit; 2-1. Walking wheel; 2-2. Auxiliary wheel; 2-3. T-shaped connecting frame; 3. Lateral moving frame unit; 4. Placement platform; 5. Rebar scanning radar; 6. First vibrator unit; 6-1. Hollow base; 6-2. Vertical telescopic device; 6-3. Rotary motor; 6-4. Lateral telescopic vibrator; 7. Second vibrator unit; 7-1. Hollow support; 7-2. Vertical telescopic sleeve hydraulic cylinder; 8. Control platform; 9. Battery; 10. Rail; 11. First stepper motor; 12. Longitudinal chute frame; 13. Lateral frame; 14. Chute frame teeth; 15. Lateral moving frame; 16. Second stepper motor; 17. Third gear; 18. Limiting device; 18-1. T-shaped limiting frame; 18-2. Limiting telescopic sleeve hydraulic cylinder; 18-3. Rubber; 19. Handle. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to embodiments:

[0030] like Figures 1 to 2 As shown, a vibrating device for concrete construction of double-block ballastless track slabs includes a vibrating trolley slidably mounted above the double-block ballastless track 1. The vibrating trolley includes a traveling wheel unit 2 slidably mounted on the left and right sides of the double-block ballastless track 1, and a vehicle body mounted above the traveling wheel unit 2. The vehicle body includes a vehicle frame, a transverse moving frame unit 3 slidably mounted within the vehicle frame, and a placement platform 4 mounted at the front end of the vehicle frame. The vehicle frame includes two longitudinal sliding frames 12 and two transverse frames 13. Handles 19 are provided on the sides of the two transverse frames 13. After the entire pouring device is completed, the operator can use the handles to move the pouring device away from the track. Multiple rebar scanning radars 5 are respectively provided on the sides of both ends of the transverse moving frame unit 3. The main function of the rebar scanning radars 5 is to continuously emit signals downwards during the movement of the pouring device to identify the position of the rebar mesh and the rebar arrangement in real time.

[0031] The lower ends of the transverse moving frame unit 3 are respectively fixed with a first vibrator unit 6 for vibrating the concrete at the bottom of the sleeper, and the sides of the car body are respectively fixed with a second vibrator unit 7 for vibrating the concrete on both sides of the track bed. The placement platform 4 is equipped with a control platform 8 and a storage battery 9. The traveling wheel unit 2, the transverse moving frame unit 3, the rebar scanning radar 5, the first vibrator unit 6 and the second vibrator unit 7 are all electrically connected to the control platform 8 and powered by the storage battery 9.

[0032] The control platform 8 is the "brain" of the entire pouring device. The control platform 8 has a display and operation buttons. The display can show the signals returned by the rebar scanning radar in real time. The control platform 8 can be programmed according to different track structure conditions. The control platform 8 can input parameters such as sleeper size, sleeper spacing, rebar size, longitudinal, lateral and vertical rebar spacing, rebar arrangement, and vibration frequency of the first vibrator unit 6 and the second vibrator unit 7. After the data is entered, the entire pouring device can be automatically controlled to work on the track according to the program.

[0033] like Figures 3 to 4 As shown, a steel rail 10 is installed above the double-block ballastless track 1. The traveling wheel unit 2 includes a traveling wheel 2-1 slidably installed above the steel rail 10 and auxiliary wheels 2-2 slidably installed on both sides of the rail web of the steel rail 10. T-shaped connecting frames 2-3 are rotatably installed at both ends of the traveling wheel 2-1. Auxiliary wheels 2-2 are rotatably installed at both ends of the T-shaped connecting frames 2-3, and the auxiliary wheels 2-2 are in contact with the rail web of the steel rail 10. Since the upper surface of the steel rail 10 is relatively smooth, designing the traveling wheel 2-1 alone poses a risk of instability. Therefore, this invention provides auxiliary wheels 2-2 on both sides of the traveling wheel 2-1. Since the auxiliary wheels 2-2 on both sides are in contact with the rail web of the steel rail 10, the stability of the traveling wheel 2-1 is greatly increased. A first stepper motor 11 connected to the control platform 8 is fixedly installed below the placement platform 4. A first gear is installed on the output shaft of the first stepper motor 11, and a second gear meshing with the first gear is installed inside the traveling wheel 2-1.

[0034] like Figure 5 As shown, the transverse moving frame unit 3 includes a hollow transverse moving frame 15 and a second stepper motor 16 fixedly installed at the inner end of the transverse moving frame 15 and connected to the control platform 8. The transverse moving frame 15 is located in the middle of the entire casting device. Its main material is a lightweight high-strength steel frame. Slide frame teeth 14 are provided above and below the longitudinal slide frame 12. A third gear 17 that meshes and slides with the slide frame teeth 14 is provided on the output shaft of the second stepper motor 16.

[0035] like Figure 6 As shown, the first vibrator unit 6 includes a hollow base 6-1 fixedly installed below the transverse moving frame 15. A hydraulic motor connected to the control platform 8 is installed inside the hollow base 6-1. A vertical telescopic device 6-2 is fixedly installed below the hollow base 6-1. The telescopic end of the vertical telescopic device 6-2 is connected to the transverse telescopic vibrator 6-4 through a rotary motor 6-3. A vibration motor is built into the end of the transverse telescopic vibrator 6-4. Both the vertical telescopic device 6-2 and the transverse telescopic vibrator 6-4 are telescopic sleeve hydraulic cylinders. The vertical telescopic device 6-2, the rotary motor 6-3, and the transverse telescopic vibrator 6-4 are all powered by hydraulic motors.

[0036] like Figure 7 As shown, the second vibrator unit 7 includes a hollow bracket 7-1 fixedly installed on the side of the vehicle body. A hydraulic motor is installed inside the hollow bracket 7-1. A vertical telescopic sleeve hydraulic cylinder 7-2 is installed at the end of the hollow bracket 7-1, and a vibration motor is built into the end of the vertical telescopic sleeve hydraulic cylinder 7-2. The vertical telescopic sleeve hydraulic cylinder 7-2 is powered by the hydraulic motor.

[0037] like Figure 8 As shown, limit devices 18 are provided on both sides of the vehicle body. Each limit device 18 includes a T-shaped limit frame 18-1 located on the side of the vehicle body, a limit telescopic sleeve hydraulic cylinder 18-2 fixedly installed below the vehicle body, and a hydraulic motor providing power to the limit telescopic sleeve hydraulic cylinder 18-2. The telescopic end of the limit telescopic sleeve hydraulic cylinder 18-2 is fixedly connected to the T-shaped limit frame 18-1. Both ends of the T-shaped limit frame 18-1 contact the side of the vehicle body and the rail web of the rail 10, respectively. For better braking effect, rubber 18-3 is provided at both ends of the L-shaped limit frame 18-1 that contact the side of the vehicle body and the rail web of the rail 10.

[0038] Instructions for use: (e.g.) Figure 9 As shown, the device of the present invention is first placed above a double-block ballastless track.

[0039] Power on the control platform 8. After the control platform 8 system is loaded, program settings are made according to different track structure conditions. The sleeper size, sleeper spacing, steel bar size, longitudinal, lateral and vertical steel bar spacing, steel bar arrangement, and vibration frequency of the first vibrator unit 6 and the second vibrator unit 7 are entered through the operation buttons on the control platform 8. After the data is entered, the entire pouring device is started to begin operation.

[0040] Under programmed automatic control, the entire pouring device moves along the track bed. The rebar scanning radar 5 scans the lower rail panel rebar in real time and transmits the feedback signal to the control platform 8 system. The system then controls the entire pouring device to move horizontally to the middle of the two sleepers. Based on the real-time feedback information, the control platform 8 controls the transverse moving frame unit 3 to move along the longitudinal sliding frame 12. After moving to the position where the concrete at the bottom of the sleeper needs to be vibrated, the control platform 8 controls the telescopic sleeve hydraulic cylinder 18-2 to retract its telescopic end inward, so that the two ends of the T-shaped limit frame 18-1 contact the side of the car body and the rail web of the rail 10 respectively. The friction of the rubber further brakes the movement of the traveling wheel unit 2. When vibration begins, the two vertical telescopic devices 6-2 are controlled to drive the transverse telescopic vibrator 6-4 to move vertically downward. When the two transverse telescopic vibrators 6-4 move to the space between the rebar mesh at both ends of the transverse rail panel, the two transverse telescopic vibrators 6-4 are controlled to extend horizontally to the bottom of the sleeper. The control platform 8 starts the rotary motor 6-3 and the vibration motor of the transverse telescopic vibrator 6-4 to rotate and vibrate the concrete at the bottom of the sleeper to compact it. While vibrating the concrete at the bottom of the sleeper, the concrete on both sides of the track bed is also vibrated simultaneously to ensure that the concrete at the bottom of the sleeper and other concealed areas is completely vibrated. The vertical telescopic sleeve hydraulic cylinder 7-2 is controlled to move vertically downwards to vibrate the concrete on both sides of the track bed. After vibration, the transverse telescopic vibrator 6-4 automatically retracts, and then the vertical telescopic device 6-2 retracts vertically, while the vertical telescopic sleeve hydraulic cylinder 7-2 is also controlled to retract. Finally, the vibration device is moved to the next location to be vibrated via the control platform 8 for the next vibration cycle.

Claims

1. A vibrating device for the construction of concrete for the slab of a double-block ballastless track bed, characterized in that: The utility model provides a kind of vibrating car including slidingly being arranged on the double-block ballastless track (1) above, the vibrating car includes left and right respectively slidingly being arranged on the double-block ballastless track (1) on walking wheel unit (2) and the car body being arranged on walking wheel unit (2) above, double-block ballastless track (1) is provided with rail (10) above, walking wheel unit (2) includes slidingly being arranged on rail (10) above walking wheel (2-1) and slidingly being arranged on the auxiliary wheel (2-2) of rail (10) rail waist both sides, the both ends of walking wheel (2-1) are rotatably provided with T type connecting frame (2-3), the both ends of T type connecting frame (2-3) are rotatably provided with auxiliary wheel (2-2) and auxiliary wheel (2-2) is contacted with rail (10) rail waist, the car body includes car body frame, slidingly being arranged in car body frame transverse moving frame unit (3) and being arranged on the front end of car body frame above placement platform (4), placement platform (4) below is fixedly provided with the first stepper motor (11) being connected with control platform (8), the output shaft of first stepper motor (11) is provided with first gear, the inside of walking wheel (2-1) is provided with second gear, the both ends of transverse moving frame unit (3) side are respectively provided with a plurality of steel bar scanning radar (5), the both ends below transverse moving frame unit (3) are respectively fixedly provided with the first vibrator unit (6) of vibrating sleeper bottom concrete, first vibrator unit (6) includes fixedly being arranged in the hollow base (6-1) below transverse moving frame (15), the inside of hollow base (6-1) is provided with hydraulic motor being connected with control platform (8), hollow base (6-1) below is fixedly provided with vertical telescopic device (6-2), the telescopic end side of vertical telescopic device (6-2) is connected transverse telescopic vibrator (6-4) by rotary motor (6-3) and transverse telescopic vibrator (6-4) end portion built-in vibration motor, vertical telescopic device (6-2) and transverse telescopic vibrator (6-4) are all used telescopic sleeve hydraulic cylinder, vertical telescopic device (6-2), rotary motor (6-3) and transverse telescopic vibrator (6-4) are all powered by hydraulic motor, the both sides of car body are respectively fixedly provided with the second vibrator unit (7) of vibrating roadbed both sides concrete, the second vibrator unit (7) includes fixedly being arranged in the hollow support (7-1) of car body side, the inside of hollow support (7-1) is provided with hydraulic motor, the end of hollow support (7-1) is provided with vertical telescopic sleeve hydraulic cylinder (7-2) and vertical telescopic sleeve hydraulic cylinder (7-2) end portion built-in vibration motor, vertical telescopic sleeve hydraulic cylinder (7-2) is powered by hydraulic motor, placement platform (4) above is provided with control platform (8) and battery (9), walking wheel unit (2), transverse moving frame unit (3), steel bar scanning radar (5), first vibrator unit (6) and second vibrator unit (7) are electrically connected control platform (8) and are powered by battery (9).

2. The vibrating device for the construction of the concrete of the slab of the ballastless track bed according to claim 1, characterized in that: The vehicle body frame comprises two longitudinal sliding groove frames (12) and two lateral frames (13), the longitudinal sliding groove frames (12) are provided with sliding groove frame teeth (14) up and down, the lateral moving frame unit (3) comprises a hollow lateral moving frame (15) and a second step motor (16) fixedly arranged at the inner end of the lateral moving frame (15) and connected with the control platform (8), and a third gear (17) is arranged on the output shaft of the second step motor (16) and is engaged with the sliding groove frame teeth (14) to slide.

3. The vibrating device for the construction of the concrete of the slab of the ballastless track bed according to claim 1, characterized in that: The two sides of the vehicle body are provided with limiting devices (18), the limiting device (18) comprises a T-shaped limiting frame (18-1) arranged on the side of the vehicle body, a limiting telescopic sleeve hydraulic cylinder (18-2) fixedly arranged below the placement table (4) and a hydraulic motor for providing power for the limiting telescopic sleeve hydraulic cylinder (18-2), the telescopic end of the limiting telescopic sleeve hydraulic cylinder (18-2) is fixedly connected with the T-shaped limiting frame (18-1), and the two ends of the T-shaped limiting frame (18-1) are respectively in contact with the side of the vehicle body and the rail waist of the steel rail (10).

4. The vibrating device for the construction of concrete for the slab of the ballastless track bed according to claim 3, characterized in that: The two ends of the T-shaped limiting frame (18-1) in contact with the side of the vehicle body and the rail waist of the steel rail (10) are respectively provided with rubbers (18-3).

5. The vibrating device for the construction of concrete for the slab of the ballastless track bed according to claim 2, characterized in that: The two lateral frames (13) are provided with handles (19) on the sides.

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