Floating coupling and unloading machine trolley running mechanism adopting the same

Abstract

The utility model discloses a kind of floating coupling and adopt the unloading machine trolley running mechanism of the floating coupling, the unloading machine trolley running mechanism includes trolley assembly, front lifting drum, rear lifting drum, front opening and closing drum, rear opening and closing drum, lifting reducer, opening and closing reducer, floating coupling is arranged between the lifting reducer and opening and closing reducer;The floating coupling includes half coupling with the butt joint of reducer output shaft and is arranged in the coupling separator between two half couplings;The coupling separator includes left transmission shaft and right transmission shaft, the connecting sleeve of being sleeved between left transmission shaft and right transmission shaft, still be provided with the left and right movement of driving connecting sleeve and the stirring component of being driven.This utility model can realize the quick combination and disconnection of opening and closing reducer and lifting reducer by floating coupling, and it is easy to operate, convenient, can be widely applied to unloading machine trolley running mechanism.

Description

Technical Field

[0001] This utility model relates to the field of port equipment technology, and in particular to a ship unloading machine trolley running mechanism. Background Technology

[0002] Ship unloaders are widely used in bulk cargo terminals. The lifting and opening / closing of the grab bucket on the trolley relies on the movement of the lifting and opening / closing ropes, while the trolley's lateral movement is achieved by the trolley traction mechanism. During lateral movement, the opening / closing rope needs to maintain linkage with the lifting rope to ensure the grab bucket's normal operation. Therefore, the operating mechanism includes a floating coupling system that links the opening / closing reducer and the lifting reducer. Due to frequent movement, the opening / closing rope and lifting rope require frequent inspection and replacement. During replacement, the opening / closing rope and lifting rope must be disconnected. The existing floating coupling system uses universal joint couplings for connection. Replacement requires removing the universal joint coupling, which is time-consuming, difficult, causes significant damage to components, and poses safety hazards. Therefore, the existing floating coupling system needs improvement to enable rapid disconnection of the transmission structure between the opening / closing rope and the lifting rope. Summary of the Invention

[0003] The purpose of this utility model is to provide a floating coupling system and a ship unloader trolley running mechanism using the floating coupling system, so as to solve the problem that the floating coupling system in the existing ship unloader trolley running mechanism is inconvenient and difficult to disassemble.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a floating coupling system, including half couplings and a coupling separator disposed between the two half couplings; the coupling separator includes a left drive shaft and a right drive shaft, a connecting sleeve fitted between the left drive shaft and the right drive shaft, and a toggle assembly for driving the connecting sleeve to move left and right; the coupling separator also includes a housing and a cover that cooperate with each other, and a support bearing is disposed between the left drive shaft and the right drive shaft and the housing and the cover; The left and right drive shafts are provided with an external tooth at one end that mates with the connecting sleeve, and the inner ring of the connecting sleeve is provided with an internal tooth that mates with the external tooth.

[0005] Furthermore, the left drive shaft is provided with a mating hole at one end where it connects with the right drive shaft, and the end of the right drive shaft is provided with a mounting shaft that mates with the mating hole.

[0006] To reduce the friction between the shift fork and the connecting sleeve, the connecting sleeve is provided with a shifting groove. The shifting assembly includes a shift fork that mates with the shifting groove. A rolling bearing is installed at the end of the shift fork, and the diameter of the rolling bearing is adapted to the width of the shifting groove.

[0007] The unloader trolley running mechanism employing the aforementioned floating coupling system includes a trolley assembly that moves back and forth, a front lifting rope and a rear lifting rope that drive the grab bucket on the trolley assembly to rise and fall, and a front opening and closing rope and a rear opening and closing rope that drive the grab bucket on the trolley assembly to open and close. One end of the front lifting rope is wound around the front lifting drum, one end of the rear lifting rope is wound around the rear lifting drum, one end of the front opening and closing rope is wound around the front opening and closing drum, and one end of the rear opening and closing rope is wound around the rear opening and closing drum. A lifting reducer that drives the front lifting drum and the rear lifting drum, and an opening and closing reducer that drives the front opening and closing drum and the rear opening and closing drum, are provided with a floating coupling system between the lifting reducer and the opening and closing reducer.

[0008] Preferably, a universal joint is provided between the output shaft of the lifting reducer and the opening and closing reducer and the half coupling of the floating coupling system, and a connecting flange is provided between the half coupling and the left drive shaft and the right drive shaft.

[0009] To achieve independent control of braking, brakes are installed on the front lifting drum, rear lifting drum, front opening and closing drum, and rear opening and closing drum.

[0010] The beneficial effects of this utility model are as follows: The floating coupling system uses a coupling separator, which allows for manual control of the actuation component to disconnect and engage the opening / closing reducer and the lifting reducer without the need for tools to disassemble the connecting parts. Therefore, operation is simple, convenient, and efficient, and it will not damage the connecting parts, thereby improving the service life of the equipment. The fit between the left and right drive shafts and the connecting sleeve has the advantage of high reliability. The fit structure between the shift fork and the actuation groove on the connecting sleeve has the advantage of low frictional resistance.

[0011] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the operating mechanism of this utility model.

[0013] Figure 2 This is a top view of the opening / closing reducer and the lifting reducer and their cooperating structure in this utility model.

[0014] Figure 3 This is a cross-sectional view of the coupling separator in this utility model.

[0015] Figure 4 This is a longitudinal sectional view of the coupling separator in this utility model.

[0016] Figure 5 This is a three-dimensional schematic diagram of the internal structure of the coupling separator in this utility model.

[0017] Figure 6This is a three-dimensional structural diagram of the left drive shaft in this utility model.

[0018] Figure 7 This is a three-dimensional structural diagram of the right drive shaft in this utility model. Detailed Implementation

[0019] Examples, such as Figures 1 to 7 As shown, a ship unloader trolley running mechanism includes a trolley assembly 1 that moves back and forth, a grab bucket 100 that can move up and down on the trolley assembly 1, a front lifting rope 2 and a rear lifting rope 3 that drive the grab bucket 100 on the trolley assembly 1 to rise and fall, and a front opening and closing rope 4 and a rear opening and closing rope 5 that drive the grab bucket 100 on the trolley assembly 1 to open and close. One end of the front lifting rope 2 is wound around the front lifting drum 6, one end of the rear lifting rope 3 is wound around the rear lifting drum 7, one end of the front opening and closing rope 4 is wound around the front opening and closing drum 8, and one end of the rear opening and closing rope 5 is wound around the rear opening and closing drum 9. The other ends of the front lifting rope 2, rear lifting rope 3, front opening and closing rope 4, and rear opening and closing rope 5 are connected to the grab bucket 100 on the trolley assembly 1. The movement of the front lifting rope 2 and the rear lifting rope 3 drives the grab bucket 100 to rise and fall, and the movement of the front opening and closing rope 4 and the rear opening and closing rope 5 drives the grab bucket 100 to open and close, thereby realizing the grabbing function.

[0020] To achieve power transmission, a lifting reducer 11 is provided to drive the front lifting drum 6 and the rear lifting drum 7, and an opening / closing reducer 12 to drive the front opening / closing drum 8 and the rear opening / closing drum 9. Each of the lifting reducer 11 and the opening / closing reducer 12 is connected to a drive motor 200. A floating coupling system 10 is provided between the lifting reducer 11 and the opening / closing reducer 12. The lifting reducer 11 controls the movement of the front lifting drum 6 and the rear lifting drum 7, driving the lifting rope 2 and the rear lifting rope 3 to wind up and down, thus realizing the up and down movement of the grab bucket 100. The opening / closing reducer 12 controls the movement of the front opening / closing drum 8 and the rear opening / closing drum 9, driving the front opening / closing rope 4 and the rear opening / closing rope 5 to wind up and down, thus realizing the opening and closing of the grab bucket 100. The floating coupling system 10 connects the lifting reducer 11 and the opening / closing reducer 12 to maintain linkage. Brakes 30 are installed on the front hoisting drum 6, rear hoisting drum 7, front opening / closing drum 8, and rear opening / closing drum 9. When it is necessary to replace any one of the front hoisting rope 2, rear hoisting rope 3, front opening / closing rope 4, and rear opening / closing rope 5, the hoisting reducer 11 and the opening / closing reducer 12 are first disconnected through the floating coupling system 10, allowing the hoisting reducer 11 and the opening / closing reducer 12 to work independently. Then, the brakes 30 clamp one of the drums on the same reducer, and the drive motor 200 drives the other drum to rotate, completing the rope replacement. Here, the hoisting reducer 11 and the opening / closing reducer 12 are existing technical structures and will not be described in detail.

[0021] Specifically, the floating coupling system 10 of the linkage device includes a half coupling 101 that is connected to the output shaft of the reducer 12 and a coupling separator 20 disposed between the two half couplings 101.

[0022] The coupling separator 20 includes a housing 25 and a cover 26 that fit and seal against each other. A left drive shaft 21 and a right drive shaft 22 are housed within the housing 25, and are rotatably supported between the housing 25 and the cover 26 by a support bearing 27. One end of each drive shaft extends out of the housing 25 and connects to a half-coupling 101. Specifically, the half-coupling 101 is connected to the output shaft of the reducer 12 via a universal joint 102, and is fixedly connected to the left drive shaft 21 and the right drive shaft 22 via connecting flanges 103.

[0023] To control the engagement and disengagement of the left drive shaft 21 and the right drive shaft 22, thereby achieving the linkage and disconnection of the floating coupling system 10, a connecting sleeve 23 is fitted onto one end of the left drive shaft 21 and the right drive shaft 22 that engages with each other. Specifically, the engagement structure is as follows: one end of the left drive shaft 21 and the right drive shaft 22 that engages with the connecting sleeve 23 is provided with a ring of external teeth 28, and the inner ring of the connecting sleeve 23 is provided with a ring of internal teeth 231 that engage with the external teeth 28. When the connecting sleeve 23 engages with the external teeth 28 on both the left drive shaft 21 and the right drive shaft 22 simultaneously, the left drive shaft 21 and the right drive shaft 22 are connected together, and they rotate synchronously. When the connecting sleeve 23 disengages from either the left drive shaft 21 or the right drive shaft 22, the left drive shaft 21 and the right drive shaft 22 separate, and they operate independently. To ensure the coaxiality of the left drive shaft 21 and the right drive shaft 22 and facilitate their engagement with the connecting sleeve 23, a mating hole 211 is provided at one end of the left drive shaft 21 that connects with the right drive shaft 22, and a mounting shaft 221 that mates with the mating hole 211 is provided at the end of the right drive shaft 22. The mounting shaft 221 is inserted into the mating hole 211 to complete the engagement.

[0024] To facilitate manual control of the movement of the connecting sleeve 23, thereby enabling the engagement and disengagement of the left drive shaft 21 and the right drive shaft 22, a toggle assembly 24 is provided to drive the connecting sleeve 23 to move left and right. The toggle assembly 24 includes a toggle fork 241 and a toggle handle 243 that drives the toggle fork 241. Moving the toggle handle 243 causes the toggle fork 241 to move. The specific connection structure between the toggle handle 243 and the toggle fork 241 is existing technology and will not be described in detail here. The connecting sleeve 23 is provided with a toggle groove 232 that mates with the toggle fork 241, with the end of the toggle fork 241 engaging in the toggle groove 232. To reduce the frictional resistance between the connecting sleeve 23 and the toggle fork 241 during rotation, a rolling bearing 242 is installed at the end of the toggle fork 241. The diameter of the rolling bearing 242 is adapted to the width of the toggle groove 232, and the outer roll of the rolling bearing 242 rolls against the side walls of the toggle groove 232.

[0025] The floating coupling system 10 of this invention allows for quick and manual operation of the linkage and disconnection between the lifting reducer 11 and the opening and closing reducer 12, thus facilitating equipment maintenance and replacement.

[0026] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A floating coupling system, characterized in that: The system includes a half-coupling (101) and a coupling separator (20) disposed between the two half-couplings (101); the coupling separator (20) includes a left drive shaft (21) and a right drive shaft (22), a connecting sleeve (23) fitted between the left drive shaft (21) and the right drive shaft (22), and a toggle assembly (24) for moving the connecting sleeve (23) left and right; the coupling separator (20) also includes a housing (25) and a cover (26) that cooperate with each other, and a support bearing (27) is provided between the left drive shaft (21) and the right drive shaft (22) and the housing (25) and the cover (26); The left drive shaft (21) and the right drive shaft (22) are provided with an external tooth (28) at one end that mates with the connecting sleeve (23), and the inner ring of the connecting sleeve (23) is provided with an internal tooth (231) that mates with the external tooth (28).

2. The floating coupling system according to claim 1, characterized in that: The left drive shaft (21) is provided with a mating hole (211) at one end where it connects with the right drive shaft (22), and the right drive shaft (22) is provided with a mounting shaft (221) that mates with the mating hole (211) at the end.

3. The floating coupling system according to claim 1, characterized in that: The connecting sleeve (23) is provided with a toggle slot (232), and the toggle assembly (24) includes a toggle fork (241) that cooperates with the toggle slot (232). A rolling bearing (242) is installed at the end of the toggle fork (241), and the diameter of the rolling bearing (242) is adapted to the width of the toggle slot (232).

4. A ship unloader trolley running mechanism employing the floating coupling system described in any one of claims 1 to 3, characterized in that: The device includes a trolley assembly (1) that moves back and forth, a front lifting rope (2) and a rear lifting rope (3) that drive the grab bucket on the trolley assembly (1) to rise and fall, and a front opening and closing rope (4) and a rear opening and closing rope (5) that drive the grab bucket on the trolley assembly (1) to open and close. The device is characterized in that: one end of the front lifting rope (2) is wound around the front lifting drum (6), one end of the rear lifting rope (3) is wound around the rear lifting drum (7), one end of the front opening and closing rope (4) is wound around the front opening and closing drum (8), and one end of the rear opening and closing rope (5) is wound around the rear opening and closing drum (9). The device is also equipped with a lifting reducer (11) that drives the front lifting drum (6) and the rear lifting drum (7) to move, and an opening and closing reducer (12) that drives the front opening and closing drum (8) and the rear opening and closing drum (9) to move. A floating coupling system (10) is provided between the lifting reducer (11) and the opening and closing reducer (12).

5. The unloading machine trolley running mechanism according to claim 4, characterized in that: A universal joint (102) is provided between the output shaft of the lifting reducer (11) and the opening and closing reducer (12) and the half coupling (101) of the floating coupling system (10). A connecting flange (103) is provided between the half coupling (101) and the left drive shaft (21) and the right drive shaft (22).

6. The unloading machine trolley running mechanism according to claim 4, characterized in that: Brakes (30) are provided on the front lifting drum (6), the rear lifting drum (7), the front opening and closing drum (8), and the rear opening and closing drum (9).

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