Middle pier horizontal rotation driving device

Abstract

The utility model discloses a middle pier flat rotation driving device, including the bearing frame, the inside of bearing frame is installed with lubricating oil storage jar and PLC controller in proper order, and the top of lubricating oil storage jar is installed with oil pump. The utility model runs, and the PLC controller controls the oil pump to start, can import lubricating oil to the middle oil distribution main pipe inside of the driven gear rotation through the effect of swivel joint, then, lubricating oil will flow to the outer edge of driven gear through four first oil distribution branch pipes, this can realize the lubrication protection between driven gear and driving gear, and lubricating oil will flow to the inside of corresponding annular limit sliding cavity at the edge of the rotation body for middle pier through four second oil distribution branch pipes, realizes the lubrication protection between annular limit sliding cavity and limit sliding block, and then through the comprehensive initiative lubrication of the moving friction part on the device, the fluency of device rotation drive is improved, also avoids the friction loss, prolongs the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of pier leveling drive technology, specifically to a pier leveling drive device. Background Technology

[0002] The central pier is the pier located in the middle of the bridge structure. It is mainly used to support the beam structure above the bridge and to transfer the load to the foundation. The central pier rotation drive device is the core equipment in bridge rotation construction technology. When the bridge needs to cross a busy traffic section, in order to avoid traffic interruption or environmental damage during construction, rotation construction can be used. Specifically, the beam and central pier are first cast in the prefabrication site on the side of the obstacle. Then, the central pier and beam are rotated to the design position by the rotation drive device to complete the bridge closure. This helps to reduce the impact on existing traffic and the environment and improve construction safety.

[0003] Current pier leveling drive devices often only use a single motor to apply driving force to assist the pier leveling. This method has the drawbacks of low driving efficiency and lack of self-locking protection. Furthermore, it generally does not have an active lubrication structure, which leads to high frictional wear and affects the service life of the device. Based on this, we propose a new type of pier leveling drive device. Utility Model Content

[0004] The purpose of this utility model is to provide a driving device for the horizontal rotation of the pier, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a center pier rotating drive device, comprising a support frame, inside which a lubricating oil storage tank and a PLC controller are sequentially installed, and an oil pump is installed on the top of the lubricating oil storage tank. A base is fixed on one side of the support frame, and a driven gear is rotatably connected to the bottom of the base via a hollow bearing. A driving gear is uniformly meshed on the driven gear. A drive housing is uniformly installed at the top edge of the base, and a servo motor is installed on the drive housing. The output end of the servo motor is connected to a worm gear, and a worm wheel connected to the driving gear is meshed on the worm gear. A center pier rotating body is fixed on the top of the driven gear, and a limit slider is uniformly arranged on the outer wall of the center pier rotating body. An annular limit sliding cavity matching the limit slider is provided on the top of the base. An intermediate oil distribution main pipe is provided between the center pier rotating body and the driven gear, and a first oil distribution branch pipe and a second oil distribution branch pipe extending to the edges of the driven gear and the center pier rotating body are respectively provided on the intermediate oil distribution main pipe.

[0006] Preferably, the top of the lubricating oil storage tank is provided with an oil filling port, and a sealing plug is threaded onto the oil filling port.

[0007] Preferably, the input end of the oil pump is connected to the bottom of the lubricating oil storage tank via a connecting pipe.

[0008] Preferably, there are three driving gears, which are arranged at equal angles around the driven gears.

[0009] Preferably, the middle position of the bottom of the worm gear is fixed to the middle position of the top of the drive gear, and a rotary bearing is provided between the bottom of the drive gear and the base.

[0010] Preferably, a speed sensor is installed between the servo motor and the worm gear, and rotary bearings are respectively provided between the worm wheel and the worm gear and the drive housing.

[0011] Preferably, there are four of each of the first and second oil distribution branches, and the first and second oil distribution branches are arranged at equal angles on the middle oil distribution main pipe.

[0012] Preferably, a rotary joint is provided between the intermediate oil distribution main pipe and the oil pump, and the rotary joint is provided with a mechanical seal to improve the sealing and leakage protection of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The pier-side rotation drive device optimizes its structure by installing active gears, etc. On the one hand, the user can control the servo motors inside the three drive housings to start through the PLC controller, and then drive the active gears to rotate through the transmission action of the worm and worm wheel. At this time, the three active gears will drive the driven gears to rotate, and then drive through multiple servo motors. With the gear meshing and transmission, it can provide strong driving force to ensure the smooth rotation of the bridge. On the other hand, by utilizing the sliding guide action between the limit sliders distributed on the pier-side rotation body and the corresponding annular limit slide cavities set on the base, as well as the self-locking effect generated when the worm wheel pushes the worm in the opposite direction, the smoothness of the pier-side rotation body can be improved, and the reverse loosening and rotation of the pier-side rotation body can be avoided, thus optimizing the efficiency of the pier-side rotation drive.

[0015] (2) The intermediate pier flat drive device optimizes its performance by installing an intermediate oil distribution main pipe, etc. The PLC controller controls the oil pump to start, and through the action of the rotary joint, lubricating oil can be continuously introduced into the intermediate oil distribution main pipe inside the rotating driven gear. Then, the lubricating oil will flow to the outer edge of the driven gear through four first oil distribution branch pipes, which can realize the lubrication protection between the driven gear and the driving gear. The lubricating oil will also flow to the annular limiting slide cavity corresponding to the edge of the intermediate pier rotating body through four second oil distribution branch pipes, realizing the lubrication protection between the annular limiting slide cavity and the limiting slider. In this way, through the comprehensive active lubrication of the moving friction parts on the device, the smoothness of the device rotation drive is improved, friction loss is avoided, and the service life of the device is extended. Attached Figure Description

[0016] Figure 1 This is a top view sectional structural diagram of the present invention;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a top view sectional structural diagram of the base of this utility model;

[0019] Figure 4 This is a top view cross-sectional structural diagram of the drive housing of this utility model;

[0020] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Servo motor; 2. Drive housing; 3. Base; 4. Bearing frame; 5. Rotary body for the middle support; 6. Rotary joint; 7. Oil pump; 8. Lubricating oil storage tank; 9. PLC controller; 10. Oil filling port; 11. Drive gear; 12. Driven gear; 13. Intermediate oil distribution main pipe; 14. First oil distribution branch pipe; 15. Worm gear; 16. Worm; 17. Speed ​​sensor; 18. Limiting slider; 19. Annular limiting slide cavity; 20. Second oil distribution branch pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figure 1-5An embodiment of this utility model provides a medium-diameter flat rotation drive device, including a support frame 4, inside which a lubricating oil storage tank 8 and a PLC controller 9 are installed in sequence, and an oil pump 7 is installed on the top of the lubricating oil storage tank 8.

[0024] A base 3 is fixed on one side of the support frame 4. The bottom of the base 3 is rotatably connected to a driven gear 12 through a hollow bearing. A drive gear 11 is uniformly meshed on the driven gear 12. A drive housing 2 is uniformly installed at the top edge of the base 3.

[0025] A servo motor 1 is mounted on the drive housing 2. The output end of the servo motor 1 is connected to a worm gear 16. A worm wheel 15, which is connected to the drive gear 11, is meshed on the worm gear 16. A rotating body 5 for the middle support is fixed on the top of the driven gear 12.

[0026] A speed sensor 17 is installed between the servo motor 1 and the worm gear 16, and rotary bearings are respectively provided between the worm wheel 15 and the worm gear 16 and the drive housing 2.

[0027] In use, the speed sensor 17 is used to monitor and provide feedback on the speed of the output shaft of the servo motor 1 in real time, so that the PLC controller 9 can accurately control the operation of the drive motor based on the feedback information.

[0028] Limiting sliders 18 are evenly arranged on the outer side wall of the rotating body 5 of the middle pier, and an annular limiting slide cavity 19 matching the limiting sliders 18 is provided on the top of the base 3.

[0029] In use, on the one hand, the user can control the servo motors 1 inside the three drive housings 2 to start through the PLC controller 9. Then, through the transmission action formed by the worm 16 and worm wheel 15, the drive gear 11 is driven to rotate. At this time, the three drive gears 11 will drive the driven gear 12 to rotate. Then, through the multiple servo motors 1, and with the gear meshing and transmission, a strong driving force can be provided to ensure the smooth rotation of the bridge. On the other hand, by utilizing the sliding guide action between the limit sliders 18 distributed on the pier rotating body 5 and the corresponding annular limit sliding cavity 19 set on the base 3, as well as the self-locking effect generated when the worm wheel 15 pushes the worm 16 in the opposite direction, the stability of the pier rotating body 5 during rotation can be improved, and the reverse loosening and rotation of the pier rotating body 5 can be avoided, thus optimizing the efficiency of the pier horizontal rotation drive.

[0030] An intermediate oil distribution main pipe 13 is provided between the rotating body 5 of the middle pier and the driven gear 12. The intermediate oil distribution main pipe 13 is provided with a first oil distribution branch pipe 14 and a second oil distribution branch pipe 20 extending to the edges of the driven gear 12 and the rotating body 5 of the middle pier, respectively.

[0031] The top of the lubricating oil storage tank 8 is provided with an oil filling port 10, and a sealing plug is threaded onto the oil filling port 10;

[0032] The input end of the oil pump 7 is connected to the bottom of the lubricating oil storage tank 8 via a connecting pipe;

[0033] There are four of each of the first oil distribution branch pipe 14 and the second oil distribution branch pipe 20. The first oil distribution branch pipe 14 and the second oil distribution branch pipe 20 are arranged at equal angles on the middle oil distribution main pipe 13.

[0034] A rotary joint 6 is provided between the intermediate oil distribution main pipe 13 and the oil pump 7. A mechanical seal is provided on the rotary joint 6 to improve the sealing and leakage protection of the device.

[0035] During use, the PLC controller 9 controls the oil pump 7 to start. Through the action of the rotary joint 6, lubricating oil can be continuously introduced into the central oil distribution main pipe 13 inside the rotating driven gear 12. Then, the lubricating oil will flow to the outer edge of the driven gear 12 through the four first oil distribution branch pipes 14. This can achieve lubrication protection between the driven gear 12 and the driving gear 11. The lubricating oil will also flow to the annular limiting slide cavity 19 corresponding to the edge of the rotating body 5 of the middle block through the four second oil distribution branch pipes 20. This can achieve lubrication protection between the annular limiting slide cavity 19 and the limiting slider 18. In this way, by fully and actively lubricating the moving friction parts on the device, the smoothness of the device's rotation drive is improved, friction loss is avoided, and the service life of the device is extended.

[0036] There are three driving gears 11, which are arranged at equal angles around the driven gear 12.

[0037] The worm gear 15 is fixed at the middle position of the bottom and at the middle position of the top of the drive gear 11. A rotary bearing is provided between the bottom of the drive gear 11 and the base 3.

[0038] In this embodiment, when in use: An external power supply is connected, and the user fixes the rotating body 5 of the middle pier and the bottom of the corresponding middle pier. Then, the user can control the servo motors 1 inside the three drive housings 2 via the PLC controller 9. Through the transmission action of the worm gear 16 and worm wheel 15, the driving gear 11 rotates. At this time, the three driving gears 11 drive the driven gear 12 to rotate, which in turn is driven by multiple servo motors 1. Combined with gear meshing and transmission, this provides a strong driving force, ensuring the smooth rotation of the bridge. Simultaneously, the sliding guidance between the limiting sliders 18 distributed on the rotating body 5 of the middle pier and the corresponding annular limiting cavities 19 on the base 3, as well as the self-locking effect generated when the worm wheel 15 pushes the worm gear 16 in the opposite direction, improves the stability of the rotation of the rotating body 5 of the middle pier and prevents it from loosening and rotating in the opposite direction, thus optimizing the efficiency of the horizontal rotation drive of the middle pier. Secondly, the rotational speed sensor 17 monitors and provides feedback on the rotational speed of the output shaft of the servo motor 1 in real time, so that the PLC controller 9 can accurately control the operation of the drive motor based on the feedback information. In addition, the PLC controller 9 controls the oil pump 7 to start, and through the action of the rotary joint 6, lubricating oil can be continuously introduced into the central oil distribution main pipe 13 inside the rotating driven gear 12. Then, the lubricating oil will flow to the outer edge of the driven gear 12 through the four first oil distribution branch pipes 14, which can achieve lubrication protection between the driven gear 12 and the driving gear 11. The lubricating oil will also flow to the annular limiting slide cavity 19 corresponding to the edge of the rotating body 5 of the central support through the four second oil distribution branch pipes 20, achieving lubrication protection between the annular limiting slide cavity 19 and the limiting slider 18. In this way, by providing comprehensive active lubrication to the moving friction parts on the device, the smoothness of the device's rotation drive is improved, frictional wear is avoided, and the service life of the device is extended.

Claims

1. A driving device for leveling and rotating the pier, characterized in that, The system includes a support frame (4), inside which a lubricating oil storage tank (8) and a PLC controller (9) are installed in sequence. An oil pump (7) is installed on the top of the lubricating oil storage tank (8). A base (3) is fixed on one side of the support frame (4). A driven gear (12) is rotatably connected to the bottom of the base (3) through a hollow bearing. A drive gear (11) is evenly meshed on the driven gear (12). A drive housing (2) is evenly installed at the top edge of the base (3). A servo motor (1) is installed on the drive housing (2). A worm gear (16) is connected to the output end of the servo motor (1). The driven gear (12) is connected to a worm gear (15) that meshes with the driving gear (11). The top of the driven gear (12) is fixed with a rotating body (5) for the middle support. The outer side wall of the rotating body (5) for the middle support is uniformly provided with a limiting slider (18). The top of the base (3) is provided with an annular limiting slide cavity (19) that matches the limiting slider (18). An intermediate oil distribution main pipe (13) is provided between the rotating body (5) for the middle support and the driven gear (12). The intermediate oil distribution main pipe (13) is provided with a first oil distribution branch pipe (14) and a second oil distribution branch pipe (20) that extend to the edges of the driven gear (12) and the rotating body (5) for the middle support, respectively.

2. The driving device for leveling and rotating the pier according to claim 1, characterized in that: The top of the lubricating oil storage tank (8) is provided with an oil filling port (10), and a sealing plug is threaded onto the oil filling port (10).

3. The driving device for leveling and rotating the pier according to claim 1, characterized in that: The input end of the oil pump (7) is connected to the bottom of the lubricating oil storage tank (8) through a connecting pipe.

4. The driving device for leveling and rotating the pier according to claim 1, characterized in that: There are three driving gears (11), which are arranged at equal angles around the driven gear (12).

5. The driving device for leveling and rotating the pier according to claim 1, characterized in that: The worm gear (15) is fixed at the middle position of the bottom of the drive gear (11) at the middle position of the top, and a rotary bearing is provided between the bottom of the drive gear (11) and the base (3).

6. The driving device for leveling and rotating the pier according to claim 1, characterized in that: A speed sensor (17) is installed between the servo motor (1) and the worm (16), and a rotary bearing is provided between the worm wheel (15) and the worm (16) and the drive housing (2).

7. The driving device for leveling and rotating the pier according to claim 1, characterized in that: There are four of each of the first oil distribution branch pipe (14) and the second oil distribution branch pipe (20). The first oil distribution branch pipe (14) and the second oil distribution branch pipe (20) are arranged at equal angles on the middle oil distribution main pipe (13).

8. The driving device for leveling and rotating the pier according to claim 1, characterized in that: A rotary joint (6) is provided between the intermediate oil distribution main pipe (13) and the oil pump (7), and a mechanical seal is provided on the rotary joint (6).

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