Automatic control manhole for railway tank car and control method of automatic control manhole

Abstract

The invention provides an automatic control manhole for a railway tank car and a control method thereof, and aims to solve the technical problem that an existing manhole structure depends on a manual operation mode and cannot meet the digital intelligent and automatic operation requirements of the railway tank car. The device comprises a manhole seat arranged at the top of the tank car and a manhole cover mounted at the top of the manhole seat, and one side of the manhole seat is rotatably connected with one side of the manhole cover through a connecting shaft; a turnover mechanism is arranged on the side, connected with the manhole cover, of the manhole seat, and the output end of the turnover mechanism is in transmission connection with the connecting shaft. A pressing mechanism is arranged on the other side of the manhole seat, and a pressing table is arranged on the other side of the manhole cover. The turnover mechanism and the pressing mechanism are electrically connected with an external controller, the turnover mechanism is driven to control opening and closing actions of the manhole cover, and the pressing mechanism is driven to press the pressing table to seal the manhole cover. Operators do not need to climb to the roof of the tank car for manual operation, so that the operation convenience is greatly improved, and potential safety hazards caused by high-altitude operation are thoroughly avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a railway tank car, in particular to an automatic control manhole for a railway tank car and a control method thereof. BACKGROUND

[0002] The manhole seat and manhole cover of the existing railway tank car are mostly compressed and sealed through the bolt and nut structure matched with an opening aid. During the loading and unloading operation of the tank car, the operating personnel need to climb to the top of the tank car to complete the manual opening and closing operation, which not only has the problem of inconvenience in climbing up and down, but also easily causes safety hazards due to high-altitude operation and manual operation errors.

[0003] With the transformation and upgrading of the railway tank car industry towards digitization, the automatic transformation of tank car accessories has become the core trend of technological development. The traditional manhole structure relying on manual operation mode cannot adapt to the digitization and automation operation requirements of the railway tank car. SUMMARY

[0004] The purpose of the present application is to solve the technical problem that the existing manhole structure relies on manual operation mode and cannot adapt to the digitization and automation operation requirements of the railway tank car, and to provide an automatic control manhole for a railway tank car and a control method thereof.

[0005] To achieve the above-mentioned purpose, the technical solutions provided by the present application are as follows: An automatic control manhole for a railway tank car, comprising a tank car body, a manhole seat arranged at the top of the tank car body, and a manhole cover installed at the top of the manhole seat; the special feature is that: One side of the manhole seat is rotatably connected to one side of the manhole cover through a connecting shaft; One side of the manhole seat and the manhole cover is provided with a turnover mechanism, and the output end of the turnover mechanism is connected to the connecting shaft; The other side of the manhole seat is provided with a pressing mechanism, and the other side of the manhole cover is provided with a pressing table corresponding to the pressing mechanism; The turnover mechanism and the pressing mechanism are electrically connected to the controller to control the turnover mechanism to drive the opening and closing of the manhole cover, and the pressing mechanism to lock or unlock the manhole cover through the pressing table.

[0006] Further, the pressing mechanism comprises an electric push rod, a pressing seat and a guide frame; the electric push rod is electrically connected to the controller; The electric push rod is arranged at the top of the tank car body and located at the other side of the manhole seat, the fixed end of the electric push rod is hinged to the tank car body, the driving end adopts a push rod and is connected to the pressing seat, the guide frame is fixedly arranged at the other side of the manhole seat, the pressing seat is slidingly connected to the guide frame and is correspondingly arranged with the pressing table, and the manhole cover is locked or opened by pressing or releasing the pressing table.

[0007] Furthermore, it also includes a mounting lug fixed to the top of the tanker body, the mounting lug being hinged to the tail of the electric push rod.

[0008] Furthermore, the pressure table is an L-shaped pressure table; The guide frame is provided with a guide groove, both ends of which are horizontally set, and the end closer to the electric push rod is higher than the other end. The middle section of the guide groove smoothly transitions downward toward the manhole seat. The pressure seat is equipped with a slider, which is located in the guide groove to achieve a sliding connection between the pressure seat and the guide frame.

[0009] Furthermore, the flipping mechanism includes a drive motor, a driving gear, and a driven gear; The drive motor is located on one side of the manhole seat, the drive gear is connected to the output end of the drive motor, the driven gear is connected to the connecting shaft, and the drive gear and the driven gear are meshed together.

[0010] Furthermore, the flipping mechanism includes a drive motor and a reduction mechanism; The drive motor is located on one side of the manhole seat, the input end of the geared motor is connected to the output end of the drive motor, and the output end of the geared motor is connected to the connecting shaft. The drive motor is a stepper motor, and the stepper motor is electrically connected to the controller.

[0011] Furthermore, the reduction ratio of the reduction mechanism is 1:3 to 1:5.

[0012] Furthermore, the controller is a control switch, which is electrically connected to the drive motor and the electric push rod respectively, so as to control the drive motor to drive the opening and closing of the manhole cover, and the electric push rod to drive the pressure seat to press or release the pressure table to lock or unlock the manhole cover.

[0013] Furthermore, a sealing structure is provided between the manhole cover and the manhole seat; The tipping mechanism is fixed to the top of the tanker truck by a mounting base and is located on one side of the manhole seat; A shock-absorbing pad is provided between the mounting base and the top of the tanker truck.

[0014] A control method for an automatic control manhole for railway tank cars, based on any of the automatic control manholes for railway tank cars described above; its special feature is that it includes the following steps: Open the manhole cover: ① Control the clamping mechanism to release the pressure plate, thereby unlocking the manhole cover; ② Control the flipping mechanism to rotate the connecting shaft, thereby driving the manhole cover to flip open; Close the manhole cover: ① Control the flipping mechanism to rotate the connecting shaft, thereby driving the manhole cover to flip and fit onto the manhole seat, so that the manhole cover is closed; ② Control the clamping mechanism to clamp the pressure plate set on the other side of the manhole cover to lock the manhole cover.

[0015] Compared with the prior art, the present invention has the following advantages: (1) The present invention provides an automatic control manhole for railway tank cars. The manhole cover is automatically opened and closed through a flipping mechanism and locked between the manhole cover and the manhole seat with a pressing mechanism. This eliminates the need for operators to climb to the top of the tank car to operate manually, greatly improving the convenience of operation and completely avoiding the safety hazards caused by high-altitude operations. (2) The present invention provides an automatic control manhole design for railway tank cars, which is a guide groove with horizontal ends and a downward transition in the middle section towards the manhole seat. This allows the electric push rod to drive the pressure seat to slide in the guide groove. When the pressure seat moves to the end of the guide groove, it can press the L-shaped pressure table set on one side of the manhole cover under the downward guiding action of the guide groove. Therefore, the present invention works in concert with the gear transmission flipping mechanism and the pressure mechanism that cooperates with the guide groove. Combined with the design of the sealing gasket, it ensures the smoothness of the opening and closing of the manhole cover and the sealing reliability, without affecting the loading and unloading performance of the tank car, and is suitable for the digital and automated operation requirements of railway tank cars. (3) The present invention provides an automatic control method for a manhole for a railway tank car. The manhole cover is automatically opened and closed by controlling the flipping mechanism, and the manhole cover is locked by controlling the pressing mechanism to press or release the pressing platform set on the other side of the manhole cover. This method does not require operators to climb to the top of the tank car to operate manually, which greatly improves the convenience of operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an automatic control manhole for railway tank cars according to an embodiment of the present invention when the manhole cover is closed; Figure 2 This is a schematic diagram of the structure of an embodiment of an automatic control manhole for railway tank cars according to the present invention, showing the manhole cover when it is opened.

[0017] In the diagram: 1-tank truck, 2-manhole seat, 3-manhole cover, 4-connecting shaft, 5-pressing platform, 6-electric push rod, 7-push rod, 8-guide frame, 9-mounting lug, 10-slider, 11-drive motor, 12-mounting seat, 13-pressing seat. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1 See appendixFigure 1 As shown, this embodiment 1 provides an automatic control manhole for railway tank cars, including a manhole seat 2 installed on the top of the tank car 1, and a manhole cover 3 installed on the top of the manhole seat 2; a sealing gasket is provided on the mating surface of the manhole cover 3 and the manhole seat 2, the cross-section of the sealing gasket is trapezoidal, and a trapezoidal sealing groove is provided at the corresponding position of the manhole seat 2, the shape and size of the trapezoidal sealing groove being adapted to the shape and size of the sealing gasket; one side of the manhole seat 2 is rotatably connected to one side of the manhole cover 3 through a connecting shaft 4, and a driven gear is provided on the connecting shaft 4; a drive motor 11 is provided on the top of the tank car 1 on one side of the manhole seat 2 through a mounting base 12, a shock-absorbing pad is provided between the mounting base 12 and the top of the tank car 1, and a drive gear is provided on the output end of the drive motor 11, the drive gear and the driven gear are meshed and connected, and the transmission ratio between the two is 1:3; Figure 2 As shown, a pressure platform 5 is provided on the other side of the manhole cover. The pressure platform 5 is an L-shaped pressure platform. On the top of the tanker 1, on the other side of the manhole seat 2, an electric push rod 6 is connected by a mounting lug 9. A guide frame 8 is fixedly provided on the other side of the manhole seat 2. A guide groove is provided on the guide frame 8. The two ends of the guide groove are horizontal, and the middle section of the guide groove smoothly transitions downward toward the manhole seat 2. A pressure seat 13 is connected to the push rod 7 of the electric push rod 6. A slider 10 is provided on the pressure seat 13. The slider 10 is slidably connected to the guide groove.

[0020] Based on this embodiment, a control method for an automatic control manhole for railway tank cars is also provided, wherein the external controller supports wired control and wireless remote control; the method includes the following steps: When it is necessary to open the manhole cover, first operate the external controller to control the electric push rod 6 to retract, which will drive the pressure seat 13 to move away from the manhole seat 2 along the guide groove opened on the guide frame 8, releasing the pressure on the L-shaped pressure table set on one side of the manhole cover 3. Then control the drive motor 11 to operate, which, in conjunction with the meshing relationship between the active gear set on it and the driven gear set on the connecting shaft 4, drives the connecting shaft 4 to rotate at the set transmission ratio, and at the same time drives the manhole cover 3 connected to the connecting shaft 4 to flip open.

[0021] When it is necessary to close the manhole cover 3, firstly, the external controller controls the drive motor 11 to operate. In conjunction with the meshing relationship between the active gear on the motor and the driven gear on the connecting shaft 4, the connecting shaft 4 is driven to rotate at a set transmission ratio. At the same time, the manhole cover 3 connected to the connecting shaft 4 is rotated and pressed against the manhole seat 2. Then, the push rod 7 of the electric push rod 6 is controlled to extend, which drives the pressure seat 13 to move along the guide groove on the guide frame 8 towards the manhole seat 2. After passing through the middle section of the guide groove, it presses against the L-shaped pressure table on one side of the manhole cover 3. With the help of the sealing gasket at the contact point between the manhole cover 3 and the manhole seat 2, automatic closing and sealing are achieved.

[0022] Example 2 This embodiment 2 provides an automatic control manhole for railway tank cars, including a manhole seat 2 installed on the top of the tank car 1, and a manhole cover 3 installed on the top of the manhole seat 2; a sealing gasket is provided on the mating surface of the manhole cover 3 and the manhole seat 2, the cross-section of the sealing gasket is trapezoidal, and a trapezoidal sealing groove is provided at the corresponding position of the manhole seat 2, the shape and size of the trapezoidal sealing groove being adapted to the shape and size of the sealing gasket; one side of the manhole seat 2 is rotatably connected to one side of the manhole cover 3 via a connecting shaft 4, and a driven gear is provided on the connecting shaft 4; a drive motor 11 is provided on the top of the tank car 1 on one side of the manhole seat 2 via a mounting base 12, and a connection is provided between the mounting base 12 and the top of the tank car 1. There is a shock-absorbing pad. The output end of the drive motor 11 is equipped with a drive gear, which meshes with the driven gear, and the transmission ratio between them is 1:5. On the other side of the manhole cover, there is a pressure platform 5, which is an L-shaped pressure platform. On the top of the tanker 1, on the other side of the manhole seat 2, an electric push rod 6 is connected by a mounting lug 9. On the other side of the manhole seat 2, a guide frame 8 is fixedly installed. The guide frame 8 has a guide groove. The two ends of the guide groove are horizontal, and the middle section of the guide groove smoothly transitions downward toward the manhole seat 2. The push rod 7 of the electric push rod 6 is connected to a pressure seat 13. A slider 10 is installed on the pressure seat 13 and is slidably connected to the guide groove.

[0023] Example 3 This embodiment 3 provides an automatic control manhole for railway tank cars, including a manhole seat 2 disposed on the top of the tank car 1, and a manhole cover 3 installed on the top of the manhole seat 2; a sealing gasket is provided on the mating surface of the manhole cover 3 and the manhole seat 2, the sealing gasket having a trapezoidal cross-section, and a trapezoidal sealing groove is provided at the corresponding position of the manhole seat 2, the shape and size of the trapezoidal sealing groove being adapted to the shape and size of the sealing gasket; one side of the manhole seat 2 is rotatably connected to one side of the manhole cover 3 via a connecting shaft 4, and a drive motor 11 and a planetary reducer are provided on the top of the tank car 1 on one side of the manhole seat 2 via a mounting base 12, and a [missing information - likely a type of gearbox] is provided between the mounting base 12 and the top of the tank car 1. The shock-absorbing pad is connected to the output end of the drive motor 11 and the input end of the planetary reducer. The output end of the planetary reducer is connected to the connecting shaft 4 for transmission. On the other side of the manhole cover, there is a pressure platform 5, which is an L-shaped pressure platform. On the top of the tanker 1, on the other side of the manhole seat 2, there is an electric push rod 6 connected by a mounting lug 9. On the other side of the manhole seat 2, there is a guide frame 8. The guide frame 8 has a guide groove. The two ends of the guide groove are horizontal, and the middle section of the guide groove smoothly transitions downward toward the manhole seat 2. The push rod 7 of the electric push rod 6 is connected to a pressure seat 13. A slider 10 is provided on the pressure seat 13. The slider 10 is slidably connected to the guide groove.

[0024] The above are merely embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the technical solutions of the present invention should be included within the scope of protection of the present invention. Furthermore, it should be noted that the accompanying drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the actual scope of protection of the present invention.

Claims

1. An automatic control manhole for railway tank cars, comprising a tank car body (1), a manhole seat (2) disposed on the top of the tank car body (1), and a manhole cover (3) installed on the top of the manhole seat (2); characterized in that: One side of the manhole seat (2) is rotatably connected to one side of the manhole cover (3) via a connecting shaft (4); A flipping mechanism is provided on the side where the manhole seat (2) is connected to the manhole cover (3), and the output end of the flipping mechanism is connected to the connecting shaft (4); A pressing mechanism is provided on the other side of the manhole seat (2), and a pressing platform (5) corresponding to the pressing mechanism is provided on the other side of the manhole cover (3). The flipping mechanism and the pressing mechanism are both electrically connected to the controller to control the flipping mechanism to drive the opening and closing of the manhole cover (3) and the pressing mechanism to lock or unlock the manhole cover (2) through the pressing platform (5).

2. An automatic control manhole for railway tank cars according to claim 1, characterized in that: The clamping mechanism includes an electric push rod (6), a pressure seat (13), and a guide frame (8); the electric push rod (6) is electrically connected to the controller; The electric push rod (6) is set on the top of the tanker body (1) and located on the other side of the manhole seat (2). Its fixed end is hinged to the tanker body (1), and the driving end is a push rod (7) connected to the pressure seat (13). The guide frame (8) is fixedly set on the other side of the manhole seat (2). The pressure seat (13) is slidably connected to the guide frame (8) and is correspondingly set to the pressure platform (5). By pressing or releasing the pressure platform (5), the manhole cover (2) is locked or opened.

3. An automatic control manhole for railway tank cars according to claim 2, characterized in that: It also includes a mounting lug (9) fixed to the top of the tanker body (1), the mounting lug (9) being hinged to the tail of the electric push rod (6).

4. An automatic control manhole for railway tank cars according to claim 3, characterized in that: The pressure table (5) is an L-shaped pressure table; The guide frame (8) is provided with a guide groove. The two ends of the guide groove are set horizontally, and the end closer to the electric push rod (6) is higher than the other end. The middle section of the guide groove smoothly transitions downward toward the manhole seat (2). The pressure seat (13) is provided with a slider (10), which is located in the guide groove to realize the sliding connection between the pressure seat (13) and the guide frame (8).

5. An automatic control manhole for railway tank cars according to claim 1, characterized in that: The flipping mechanism includes a drive motor (11), a driving gear, and a driven gear; The drive motor (11) is located on one side of the manhole seat (2), the drive gear is connected to the output end of the drive motor (11), the driven gear is connected to the connecting shaft (4), and the drive gear and the driven gear are meshed together.

6. An automatic control manhole for railway tank cars according to any one of claims 2-4, characterized in that: The flipping mechanism includes a drive motor (11) and a reduction mechanism; The drive motor (11) is located on one side of the manhole seat (2), the input end of the deceleration motor is connected to the output end of the drive motor (11), and the output end of the deceleration motor is connected to the connecting shaft (4). The drive motor (11) is a stepper motor, and the stepper motor is electrically connected to the controller.

7. An automatic control manhole for railway tank cars according to claim 6, characterized in that: The reduction ratio of the reduction mechanism is 1:3 to 1:

5.

8. An automatic control manhole for railway tank cars according to claim 6, characterized in that: The controller is a control switch, which is electrically connected to the drive motor (11) and the electric push rod (6) respectively, so as to control the drive motor (11) to drive the manhole cover (3) to open and close, and the electric push rod (6) to drive the pressure seat (13) to press or release the pressure table (5) to lock or unlock the manhole cover (2).

9. An automatic control manhole for railway tank cars according to claim 1, characterized in that: A sealing structure is provided between the manhole cover (3) and the manhole seat (2); The tipping mechanism is fixed to the top of the tanker (1) by the mounting base (12) and is located on one side of the manhole seat (2); A shock-absorbing pad is provided between the mounting base (12) and the top of the tank truck.

10. A control method for an automatic control manhole for railway tank cars, based on the automatic control manhole for railway tank cars as described in any one of claims 1-9; characterized in that, Includes the following steps: Open the manhole cover (3): ① Control the pressing mechanism to release the pressing platform (5), so that the manhole cover (3) is unlocked; ② Control the flipping mechanism to rotate the connecting shaft (4), thereby driving the manhole cover (3) to flip and open; Close the manhole cover (3): ① Control the flipping mechanism to rotate the connecting shaft (4), thereby driving the manhole cover (3) to flip and fit onto the manhole seat (2), so that the manhole cover (3) closes; ② Control the pressing mechanism to press the pressing platform (5) set on the other side of the manhole cover (3) to lock the manhole cover (3).

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