Crown block track single-rail clamping obstacle-crossing moving chassis

Abstract

The invention relates to the technical field of crown block moving maintenance devices, and discloses a crown block track monorail clamping obstacle crossing moving chassis which comprises a chassis body, a clamping mechanism is arranged on the chassis body and comprises a clamping motor, a clamping gear and two sets of clamping racks, and the clamping gear is meshed with the two sets of clamping racks at the same time; clamping wheels are rotationally arranged on the two groups of clamping racks; a driving system is further arranged on the chassis and comprises a driving motor, the driving motor is connected with a driving gear, a driving connecting rod is rotationally arranged on the chassis, a transmission gear is fixedly arranged on the driving connecting rod, and the transmission gear is meshed with the driving gear; the chassis is further provided with a driving mechanism, the driving mechanism comprises a first gear and a driving wheel, the driving wheel is fixedly connected with a second gear, and the second gear is meshed with the first gear. The problems that the movable chassis is blocked by pressing plate bolts or irregular joints and cannot normally move on the rail, and inspection and maintenance work of the crown block rail is affected can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of overhead crane mobile maintenance devices, and particularly relates to a single-rail clamping and obstacle-crossing mobile chassis for an overhead crane track. Background Art

[0002] In modern factories, the overhead crane, as a key production equipment, undertakes important tasks such as material handling and equipment hoisting. Its stable operation is crucial for ensuring production efficiency and safety. To ensure the long-term reliable operation of the overhead crane, regular maintenance and inspection of the overhead crane track are essential. These inspection works include but are not limited to visual inspection of the track surface, torque inspection of the track pressing plate bolts, and integrity inspection of the connection of the track joint plates, etc.

[0003] Currently, the traditional method for maintaining and inspecting the overhead crane track mainly relies on manual climbing onto the overhead crane track. This method has many drawbacks. Firstly, the working surface is narrow and the operating space is limited, which brings great inconvenience to the inspectors. Secondly, the working environment at high altitude and near the edge increases the operation difficulty and reduces the inspection efficiency. More seriously, working at high altitude poses a risk of falling from height, which poses a serious threat to the life safety of the inspectors.

[0004] To solve the above problems, domestic efforts have gradually been made to explore the use of automated equipment for the inspection and maintenance of overhead crane tracks. Currently, the maintenance work of overhead crane tracks mainly relies on a mobile chassis carrying a camera equipment to move on the overhead crane track. However, due to the presence of pressing plate bolts for connecting adjacent track sections or irregular joints between adjacent track sections on the overhead crane track, this will form an obstacle to the movement of the mobile chassis, thus hindering the normal movement of the mobile chassis on the track and affecting the inspection and maintenance work of the overhead crane track. Summary of the Invention

[0005] The present invention aims to provide a single-rail clamping and obstacle-crossing mobile chassis for an overhead crane track to solve the problem that the mobile chassis is hindered by the pressing plate bolts between adjacent track sections or the irregular joints between adjacent track sections, and cannot move normally on the track, affecting the inspection and maintenance work of the overhead crane track.

[0006] To achieve the above object, the present invention adopts the following technical solution: A single-rail clamping and obstacle-crossing mobile chassis for an overhead crane track, comprising a chassis, on which a clamping mechanism is provided. The clamping mechanism includes a clamping motor, a clamping gear, and two groups of clamping racks. The clamping motor is used to drive the clamping gear to rotate. The clamping gear meshes with the two groups of clamping racks at the same time. Clamping wheels are rotatably provided on both groups of clamping racks, and the two clamping wheels are respectively located on both sides of the axis of the moving trajectory of the chassis.

[0007] The chassis is also provided with a drive system. The drive system includes a drive motor. The drive motor is connected with a drive gear. A drive link is rotatably arranged on the chassis. A transmission gear is fixedly arranged on the drive link. The transmission gear meshes with the drive gear.

[0008] The chassis is also provided with a drive mechanism. The drive mechanism includes a first gear fixedly arranged on the drive link and a drive wheel rotatably arranged on the chassis. The drive wheel is fixedly connected with a second gear. The second gear meshes with the first gear.

[0009] The principle and advantages of this solution are as follows: The drive motor drives the drive link to rotate through the drive gear and the transmission gear, so that the drive link transmits the torque to the drive wheel through the first gear and the second gear, causing the drive wheel to rotate and driving the chassis to move forward automatically along the track. When the chassis encounters an obstacle, the clamping motor drives the clamping gear to rotate, so that the clamping gear drives the clamping rack to slide on the horizontal plane. The clamping rack drives the two clamping wheels to move away from the track, so as to move the clamping wheels to the outside of the obstacle. During the continuous forward movement of the chassis, the clamping wheels bypass the obstacle from the outside of the obstacle and move to its front side. After the clamping wheels cross the obstacle, the clamping motor controls the clamping gear and the clamping rack to move in the reverse direction and reset, so that the clamping wheels are reattached to the side surface of the track to ensure the stability during the continuous forward movement of the chassis.

[0010] The advantages of this solution are as follows:

[0011] 1. The two clamping wheels are respectively located on both sides of the axis of the moving track of the chassis. In this way, the two clamping wheels are symmetrically arranged on both sides of the center plane of the track and form a triangular stable structure with the drive wheel, making the operation of the chassis on the track more stable.

[0012] 2. The clamping wheels can rotate freely on the side of the track. When the drive wheel moves, the two clamping wheels can follow the track in the clamped state. When the moving chassis walks to the position of the track joint plate, the two clamping wheels can quickly open, cross the track joint plate and its supporting track joint plate bolts or track joint plate nuts and then re-clamp on the two side surfaces of the track, so as to realize the obstacle-crossing action of the chassis, and preferably solve the problem that the existing moving chassis is blocked by the pressing bolts between adjacent track sections or the irregular joints between adjacent tracks and cannot move normally on the track, thus affecting the inspection and maintenance work of the overhead crane track.

[0013] Preferably, as an improvement, both groups of clamping racks are fixedly connected with clamping arms. The clamping wheels are rotatably arranged at the ends of the clamping arms. The clamping wheels and the clamping racks are connected through the clamping arms.

[0014] Through the above solution, the design of the clamping arm solves the height difference between the clamping wheel and the clamping rack, making it more convenient for the installation position of the clamping wheel and for the clamping rack to control the movement of the clamping wheel.

[0015] Preferably, as an improvement, both the clamping motor and the driving motor are connected with a speed reducer.

[0016] With the above solution, the design of the speed reducer enables the clamping motor and the driving motor to drive the load with appropriate power output, making the chassis run more stably on the track.

[0017] Preferably, as an improvement, at least two groups of clamping mechanisms and driving mechanisms are arranged along the moving direction of the chassis, and each group of clamping mechanisms and driving mechanisms works in a matching manner.

[0018] With the above solution, the driving motor synchronously distributes the torque to multiple driving wheels through the speed reducer and the driving connecting rod. Since the power sources of multiple groups of driving mechanisms are the same motor, the movement pace of the entire chassis can be kept consistent. When the chassis moves and encounters an obstacle, the first group of clamping mechanisms in the forward direction controls the corresponding clamping wheels to open so that the chassis body can pass through the obstacle. At this time, the clamping wheels corresponding to other groups of clamping mechanisms remain closed; when the first group of clamping mechanisms moves away from the obstacle and the second group of clamping mechanisms reaches the obstacle, the second group of clamping mechanisms controls the corresponding clamping wheels to open so that the chassis body can pass through the obstacle, and so on in a cycle. Each group of clamping mechanisms passes through the obstacle in turn, so that when a certain group of clamping wheels opens, the clamping wheels of other groups remain clamped, enabling the chassis to move stably on the track.

[0019] By controlling multiple groups of clamping mechanisms on the chassis, the obstacle-crossing action can be automatically completed in turn, which not only ensures the excellent obstacle-crossing performance of the chassis but also ensures that there are always clamping wheels combined with the overhead crane track, effectively preventing derailment incidents.

[0020] Preferably, as an improvement, the clamping mechanism further includes an obstacle detection device, which is located on the front side of the moving direction of the clamping wheel.

[0021] With the above solution, through the obstacle detection device, the existence of the obstacle can be sensed in advance, so that the clamping wheel can be opened or closed according to the actual situation.

[0022] Preferably, as an improvement, a carrying platform is provided on the clamping mechanism, and the carrying platform is used to carry the maintenance actuator.

[0023] With the above solution, the carrying platform can be used to carry the actuator, which is convenient for the installation of the actuator.

[0024] Preferably, as an improvement, the actuator is a toolbox or an industrial manipulator.

[0025] With the above solution, the chassis is equipped with a toolbox or an industrial manipulator to move, which is convenient for maintaining the track. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a clamping mechanism.

[0027] Figure 2 It is a top view of a clamping gear and a clamping rack.

[0028] Figure 3 It is a side view of a guide rail, showing the state when there are three groups of clamping mechanisms and a driving mechanism.

[0029] Figure 4 It is a schematic structural diagram of a driving wheel installed on a guide rail. Specific implementation mode

[0030] The following is a further detailed description through specific implementation modes, but the implementation modes of the present invention are not limited thereto. Unless otherwise specified, the technical means used in the following implementation modes are conventional means well-known to those skilled in the art; the experimental methods used are all conventional methods; the materials, reagents, etc. used can all be obtained through commercial channels.

[0031] The reference numerals in the accompanying drawings of the specification include: chassis 1, clamping motor 2, clamping gear 3, clamping rack 4, clamping wheel 5, clamping arm 6, driving motor 7, driving gear 8, driving connecting rod 9, transmission gear 10, driving wheel 11, reducer 12, obstacle detection device 13, carrying platform 14, track 15, connecting plate nut 16, connecting plate 17, connecting plate bolt 18, first gear 19, second gear 20.

[0032] Embodiment 1

[0033] A single-rail clamping and obstacle-crossing moving chassis for an overhead crane track includes a chassis 1, and a clamping mechanism is provided on the chassis 1. As Figure 1 shown, the clamping mechanism includes a clamping motor 2, a clamping gear 3 and two groups of clamping racks 4. The clamping motor 2 is connected with a reducer 12, and the output shaft of the reducer 12 is connected with the clamping gear 3. The clamping motor 2 is used to drive the clamping gear 3 to rotate. Combining Figure 2 shown, the clamping gear 3 meshes with two groups of clamping racks 4 at the same time. Clamping wheels 5 are rotatably provided on both groups of clamping racks 4. Specifically, both groups of clamping racks 4 are fixedly connected with clamping arms 6. The clamping wheels 5 are rotatably arranged at the ends of the clamping arms 6. The clamping wheels 5 and the clamping racks 4 are connected through the clamping arms 6. The two clamping wheels 5 are respectively located on both sides of the axis of the moving track of the chassis 1.

[0034] A driving system is also provided on the chassis 1. As Figure 3 and Figure 4 shown, the driving system includes a driving motor 7. The driving motor 7 is also connected with a reducer 12. The output shaft of the reducer 12 is connected with a driving gear 8. A driving connecting rod 9 is rotatably provided on the chassis 1. A transmission gear 10 is fixedly provided on the driving connecting rod 9. The transmission gear 10 meshes with the driving gear 8.

[0035] The chassis 1 is also provided with a driving mechanism. The driving mechanism includes a first gear 19 fixedly arranged on the driving connecting rod 9 and a driving wheel 11 rotatably arranged on the chassis 1. The driving wheel 11 is fixedly connected with a second gear 20, and the second gear 20 meshes with the first gear 19. Both the first gear 19 and the second gear 20 in this embodiment are bevel gears.

[0036] In the specific implementation of this embodiment, the chassis 1 is powered by a driving motor 7. The reducer 12 amplifies the torque and transmits it to the driving gear 8. The driving gear 8 drives the meshing transmission gear 10 to rotate, causing the driving connecting rod 9 to rotate. The driving connecting rod 9 controls the rotation of the driving wheel 11 through the first gear 19 and the second gear 20, so that the driving wheel 11 drives the chassis 1 to move forward automatically along the track 15. When the chassis 1 encounters an obstacle, the clamping motor 2 and the reducer 12 work and drive the clamping gear 3 to rotate. The clamping gear 3 drives the clamping rack 4 to slide on the horizontal plane, so that the two clamping wheels 5 move along the radial direction of the track 15 to move the clamping wheels 5 to the outside of the obstacle. During the continuous forward movement of the chassis 1, the clamping wheels 5 bypass the obstacle from the outside and move to its front side to complete the obstacle-crossing action. After the clamping wheels 5 cross the obstacle, the clamping motor 2 controls the clamping gear 3 and the clamping rack 4 to move in the reverse direction and reset, so that the clamping wheels 5 are attached to the side surface of the track 15 again to ensure the stability of the chassis 1 during the continuous forward movement. Then the chassis 1 continues to move forward under the action of the driving wheel 11.

[0037] Embodiment 2

[0038] On the basis of Embodiment 1, as Figure 1 shown, at least two groups of clamping mechanisms and driving mechanisms are arranged along the moving direction of the chassis 1, and each group of clamping mechanisms and driving mechanisms work in cooperation. Three groups of clamping mechanisms and driving mechanisms that work in cooperation are provided in this embodiment.

[0039] In the specific implementation of this embodiment, the driving motor 7 distributes the torque synchronously to multiple driving wheels 11 through the reducer 12 and the driving connecting rod 9. In this way, multiple groups of driving mechanisms can be driven by the same driving motor 7 at the same time, and the movement pace of the entire chassis 1 can be kept consistent. When the chassis 1 moves and encounters an obstacle, the first group of clamping mechanisms in the forward direction controls the corresponding clamping wheels 5 to open, so that the chassis 1 body passes through the obstacle. At this time, the clamping wheels 5 corresponding to the other groups of clamping mechanisms remain closed to maintain good contact between the chassis 1 and the track 15 and ensure the stability of the chassis 1.

[0040] When the first set of clamping mechanisms move away from the obstacle and the second set of clamping mechanisms reach the obstacle, the second set of clamping mechanisms control the corresponding clamping wheels 5 to open so that the chassis 1 body can pass through the obstacle. By repeating this cycle, each set of clamping mechanisms opens and closes in turn to pass through the obstacle. In this way, when a certain set of clamping wheels 5 opens, the clamping wheels 5 of other sets remain clamped, enabling the chassis 1 to move stably on the track 15.

[0041] Embodiment 3

[0042] On the basis of the foregoing embodiments, as Figure 1 shown, the clamping mechanism further includes an obstacle detection device 13. In this embodiment, the obstacle detection device 13 uses an industrial camera. Its specific structure and principle are mature existing technologies and will not be elaborated here. The obstacle detection device 13 can monitor the state of the track 15. The obstacle detection device 13 is located on the front side of the moving direction of the clamping wheel 5 to detect the existence of obstacles in advance. A carrying platform 14 is also provided on the clamping mechanism. The carrying platform 14 is used to carry the maintenance actuator, and the actuator is a toolbox or an industrial manipulator.

[0043] In the specific implementation of this embodiment, during the forward movement of the chassis 1, through the obstacle detection device 13, the existence of obstacles can be sensed in advance, and thus, according to the actual situation, the clamping motor 2 can be made to work to drive the clamping wheels 5 to open or close. The chassis 1 can sense possible joints or obstacles on the track 15 and can automatically complete the obstacle-crossing action by controlling the clamping mechanism on the chassis 1. This not only ensures the excellent obstacle-crossing performance of the chassis 1 but also ensures that the clamping wheels 5 are always combined with the overhead crane track 15, effectively preventing derailment incidents. The carrying platform 14 can be used to carry the actuator, facilitating the installation of the actuator. The chassis 1 is equipped with a toolbox or an industrial manipulator to move, thus facilitating the maintenance of the track 15.

[0044] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A monorail overhead travelling track clamping obstacle-crossing mobile chassis, characterized in that: The chassis includes a clamping mechanism, which includes a clamping motor, a clamping gear and two sets of clamping racks. The clamping motor is used to drive the clamping gear to rotate. The clamping gear is meshed with the two sets of clamping racks at the same time. The two sets of clamping racks are both rotatably provided with clamping wheels. The two clamping wheels are respectively located on both sides of the axis of the chassis moving track. The chassis is also provided with a driving system, which includes a driving motor, the driving motor is connected to a driving gear, a driving connecting rod is rotatably provided on the chassis, a transmission gear is fixed on the driving connecting rod, and the transmission gear is meshed with the driving gear; The chassis is also provided with a driving mechanism, which includes a first gear fixedly arranged on the driving connecting rod and a driving wheel rotatably arranged on the chassis, the driving wheel is fixedly connected with a second gear, and the second gear is meshed with the first gear.

2. The overhead travelling vehicle track monorail clamping obstacle-crossing mobile chassis according to claim 1, characterized in that: The two groups of clamping racks are both fixedly connected with a clamping arm, the clamping wheel is rotatably arranged at the end of the clamping arm, and the clamping wheel and the clamping rack are connected through the clamping arm.

3. The overhead travelling vehicle track monorail clamping obstacle-crossing mobile chassis according to claim 2, characterized in that: The clamping motor and the driving motor are both connected with a reducer.

4. The overhead travelling vehicle track monorail clamping obstacle-crossing mobile chassis according to claim 3, characterized in that: At least two groups of the clamping mechanisms and the driving mechanisms are arranged along the moving direction of the chassis, and each group of the clamping mechanisms and the driving mechanisms work in a matching manner.

5. The overhead travelling vehicle track monorail clamping obstacle-crossing mobile chassis according to claim 4, characterized in that: The clamping mechanism further comprises an obstacle detection device, which is located at the front side of the moving direction of the clamping wheel.

6. The overhead travelling vehicle track monorail clamping obstacle-crossing mobile chassis according to claim 5, characterized in that: The clamping mechanism is provided with a bearing platform, and the bearing platform is used for bearing the actuator for maintenance.

7. The overhead travelling vehicle track monorail clamping obstacle-crossing mobile chassis according to claim 6, characterized in that: The actuator is a tool box or an industrial robot.

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