Hydraulic safety coupling

Abstract

The utility model discloses a hydraulic safety coupler which comprises a connecting flange, a power end connecting piece is installed on one side of the connecting flange, a load end connecting piece is installed on the other side of the connecting flange, the power end connecting piece comprises a first outer ring and a first inner ring, and the first outer ring is arranged on the outer side of the first inner ring in a covering mode. According to the hydraulic safety coupler, the buffer pad is arranged in the power end connecting piece, a certain buffering and damping effect can be achieved through the elastic force effect of the buffer pad, stable transmission of torque can be guaranteed through the arrangement of the toothed plate in the power end connecting piece, and meanwhile the pressure cavity is formed in the load end connecting piece; friction force is adjusted by increasing or decreasing hydraulic oil in the pressure cavity, different torque output requirements are met, in addition, when the power end cannot output normally due to the fact that the load end is blocked, the shear pipe can be disconnected to release the hydraulic oil in the pressure cavity, and the motor at the power end is idle for protection due to disconnection.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically a hydraulic safety coupling. Background Technology

[0002] Couplings are commonly used to connect the power end and the load end in various structures. Under the connection of the coupling, the power end drives the load end to rotate, thus transmitting motion and torque. Common couplings can be divided into rigid couplings and flexible couplings. Rigid couplings lack the ability to buffer and compensate for relative displacement between the two shafts, and are easily damaged by the rotation conditions of the load end during application. Flexible couplings, while capable of compensating for relative displacement between the two shafts, are greatly affected by the elastic element. Without an elastic element, they lack buffering and vibration damping capabilities; with an elastic element, the strength of the elastic element itself limits torque transmission, resulting in shortcomings in the use of couplings. Utility Model Content

[0003] The technical problem this utility model aims to solve is to overcome the existing defects and provide a hydraulic safety coupling. The power end connector has a buffer pad inside, which utilizes its own elasticity to provide a certain degree of buffering and vibration reduction. Furthermore, the toothed plate in the power end connector ensures stable torque transmission. Simultaneously, the load end connector has a pressure chamber, and the friction force can be adjusted by adding or removing hydraulic oil into the pressure chamber to meet different torque output requirements. Additionally, when the load end is obstructed, causing the power end to fail to output normally, the shear pipe can be disconnected to release the hydraulic oil in the pressure chamber, and the connection can be broken to allow the motor on the power end to idle for protection. This effectively solves the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic safety coupling, including a connecting flange, a power end connector installed on one side of the connecting flange, and a load end connector installed on the other side of the connecting flange. The power end connector includes a first outer ring and a first inner ring. The first outer ring covers the outside of the first inner ring, and toothed plates are fixed on both the inner side of the first outer ring and the outer side of the first inner ring. A buffer pad is provided between the inner toothed plate of the first outer ring and the outer toothed plate of the first inner ring. The load end connector includes a second outer ring and a second inner ring. A pressure chamber is provided between the second outer ring and the second inner ring, and a hydraulic oil injection port communicating with the inner cavity of the pressure chamber is provided on the outer side of the second outer ring.

[0005] As a preferred embodiment of this utility model, a shearing pipe communicating with a hydraulic oil injection port is provided on the outer side of the second outer ring, and a shearing plate is provided on the outer side of the second outer ring, with the shearing plate positioned close to the shearing pipe.

[0006] As a preferred embodiment of this utility model, both ends of the load end connector are provided with lubrication cavities, and an oil passage communicating with the lubrication cavity is provided inside the second outer ring, and a lubricating oil injection port communicating with the oil passage is opened on the outer side of the second outer ring.

[0007] As a preferred embodiment of this utility model, a speed monitoring point is provided on the side of the load end connector away from the connecting flange, and several speed monitoring points are provided.

[0008] As a preferred embodiment of this utility model, an end cover is provided on the side of the power end connector away from the connecting flange, and the end cover is fixed to the first outer ring of the power end connector by bolts.

[0009] As a preferred embodiment of this utility model, a gap plate for sealing the gap is provided at the connection between the load end connector and the connecting flange.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The hydraulic safety coupling of this utility model connects the power end of an external power component to the power end connector in this coupling, and then connects the load end of an external load component to the load end connector in this coupling. The power component drives the load end of the load component to rotate through this coupling.

[0012] 2. In the hydraulic safety coupling of this utility model, when the power component drives the first inner ring to rotate, the toothed plate on the outer side of the first inner ring pushes the toothed plate on the inner side of the first outer ring through the buffer pad, causing the first outer ring to rotate. The first outer ring drives the load end connector to rotate through the connecting flange, thereby transmitting power. In this process, the buffer pad plays a buffering and vibration reduction role due to its own elasticity. The toothed plate ensures the effective transmission of power and facilitates the use of this coupling.

[0013] 3. The hydraulic safety coupling of this utility model injects hydraulic oil into the pressure chamber through the hydraulic oil injection port. The injection of hydraulic oil generates friction between the second outer ring and the second inner ring. The magnitude of this friction can be adjusted by increasing or decreasing the amount of hydraulic oil to meet the transmission requirements of different torques.

[0014] 4. In the hydraulic safety coupling of this utility model, when an external overload, malfunction or other abnormal situation occurs, the shearing plate cuts the shearing pipe, allowing the hydraulic oil in the pressure chamber to flow out through the shearing pipe, releasing the internal pressure, disconnecting the power end from the load end, and allowing the motor on the power end to run idle, thus playing a protective role. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view of the load end structure in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model after the middle end cap has been removed;

[0018] Figure 4 This is a front view structural diagram of the power end in this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0020] In the diagram: 1 Connecting flange, 2 Power end connector, 21 First outer ring, 22 First inner ring, 23 Buffer pad, 24 End cap, 3 Load end connector, 31 Second outer ring, 32 Second inner ring, 4 Gap plate, 5 Lubricating oil inlet, 6 Hydraulic oil inlet, 7 Shearing plate, 8 Speed ​​monitoring point. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a hydraulic safety coupling, including a connecting flange 1, a power end connector 2 installed on one side of the connecting flange 1, and a load end connector 3 installed on the other side of the connecting flange 1. The power end connector 2 and the load end connector 3 are connected by the connecting flange 1 to form the main body of the coupling. Preferably, both the power end connector 2 and the load end connector 3 are connected and fixed to the connecting flange 1 by bolts. Figure 1 As shown. In use, the power end of the external power component is connected to the power end connector 2 in this coupling, and then the load end of the external load component is connected to the load end connector 3 in this coupling. The power component drives the load end of the load component to rotate through this coupling. The power component is preferably a motor, and the load component includes, but is not limited to, ball mills, crushers, etc.

[0023] The power end connector 2 includes a first outer ring 21 and a first inner ring 22. The first outer ring 21 covers the outside of the first inner ring 22, and toothed plates are fixed on both the inner side of the first outer ring 21 and the outer side of the first inner ring 22. A buffer pad 23 is provided between the inner toothed plate of the first outer ring 21 and the outer toothed plate of the first inner ring 22. Several toothed plates and buffer pads 23 are provided. Figure 4As shown. When the power assembly drives the first inner ring 22 to rotate, the toothed plate on the outer side of the first inner ring 22 pushes the toothed plate on the inner side of the first outer ring 21 through the buffer pad 23, causing the first outer ring 21 to rotate. The first outer ring 21 then drives the load end connector 3 to rotate through the connecting flange 1, thus transmitting power. During this process, the buffer pad 23 acts as a buffer and vibration damper due to its own elasticity. The toothed plate design ensures effective power transmission and facilitates the use of this coupling.

[0024] The load-end connector 3 includes a second outer ring 31 and a second inner ring 32. A pressure chamber is provided between the second outer ring 31 and the second inner ring 32. A hydraulic oil injection port 6 is provided on the outer side of the second outer ring 31, which communicates with the inner cavity of the pressure chamber. Hydraulic oil is injected into the pressure chamber through the hydraulic oil injection port 6. The injection of hydraulic oil generates friction between the second outer ring 31 and the second inner ring 32. The magnitude of this friction can be adjusted by increasing or decreasing the amount of hydraulic oil to meet the transmission requirements of different torques.

[0025] It should be noted that the power end connector 2 is connected to the connecting flange 1 via the first outer ring 21, and the load end connector 3 is connected to the connecting flange 1 via the second outer ring 31. When the first outer ring 21 drives the connecting flange 1 to rotate, the connecting flange 1 drives the second outer ring 31 to rotate. Under the friction of the hydraulic oil, the second inner ring 32 is driven to rotate, thereby driving the load end connected to the second inner ring 32 to rotate. Preferably, a gap plate 4 for sealing the gap is provided at the connection between the load end connector 3 and the connecting flange 1. The gap plate 4 plays a sealing role.

[0026] The outer side of the second outer ring 31 is provided with a shearing pipe that communicates with the hydraulic oil injection port 6. The outer side of the second outer ring 31 is provided with a shearing plate 7, which is located close to the shearing pipe. When an abnormal situation such as overload or failure occurs, the shearing pipe is cut by the shearing plate 7, allowing the hydraulic oil in the pressure chamber to flow out through the shearing pipe, releasing the internal pressure, disconnecting the power end from the load end, and allowing the motor on the power end to run idle, thus playing a protective role.

[0027] Both ends of the load end connector 3 are provided with lubrication chambers, and the second outer ring 31 is provided with an oil passage communicating with the lubrication chamber. The outer side of the second outer ring 31 is provided with a lubricating oil injection port 5 communicating with the oil passage. Lubricating oil is injected into the lubrication chamber through the lubricating oil injection port 5 to lubricate both ends of the load end connector 3.

[0028] A speed monitoring point 8 is provided on the side of the load end connector 3 away from the connecting flange 1, and there are several speed monitoring points 8. When in use, a speed sensor is set at the external load component, and the speed monitoring point 8 is monitored and scanned by the speed sensor to obtain the speed for easy operation.

[0029] An end cover 24 is provided on the side of the power end connector 2 away from the connecting flange 1. The end cover 24 is fixed to the first outer ring 21 of the power end connector 2 by bolts. The end cover 24 facilitates the maintenance and replacement of the buffer pad 23. At the same time, the end cover 24 limits the position of the buffer pad 23 to prevent the buffer pad 23 from displacing and falling off.

[0030] This hydraulic safety coupling features a buffer pad inside the power-end connector. The buffer pad's elasticity provides a certain degree of cushioning and vibration reduction. The toothed plate in the power-end connector ensures stable torque transmission. Meanwhile, the load-end connector has a pressure chamber. By adding or removing hydraulic oil into the pressure chamber, the friction can be adjusted to meet different torque output requirements. Furthermore, if the load end is obstructed, preventing the power end from outputting normally, the shear pipe can be disconnected to release the hydraulic oil in the pressure chamber, thus disconnecting the connection and allowing the motor on the power end to idle for protection.

[0031] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic safety coupling comprising a connecting flange (1), characterized in that: A power end connector (2) is installed on one side of the connecting flange (1), and a load end connector (3) is installed on the other side of the connecting flange (1). The power end connector (2) includes a first outer ring (21) and a first inner ring (22). The first outer ring (21) covers the outside of the first inner ring (22), and toothed plates are fixed on the inside of the first outer ring (21) and the outside of the first inner ring (22). A buffer pad (23) is provided between the toothed plate on the inside of the first outer ring (21) and the toothed plate on the outside of the first inner ring (22). The load end connector (3) includes a second outer ring (31) and a second inner ring (32). A pressure chamber is provided between the second outer ring (31) and the second inner ring (32), and a hydraulic oil injection port (6) communicating with the inner cavity of the pressure chamber is provided on the outside of the second outer ring (31).

2. The hydraulic safety coupling according to claim 1, characterized in that: The second outer ring (31) is provided with a shearing pipe that communicates with the hydraulic oil injection port (6) on the outside. The second outer ring (31) is provided with a shearing plate (7) on the outside, and the shearing plate (7) is located close to the shearing pipe.

3. The hydraulic safety coupling according to claim 1, wherein: Both ends of the load end connector (3) are provided with lubrication chambers, and the second outer ring (31) is provided with an oil passage communicating with the lubrication chamber. The second outer ring (31) is provided with a lubricating oil inlet (5) communicating with the oil passage on the outside.

4. The hydraulic safety coupling according to claim 1, wherein: The load end connector (3) is provided with a speed monitoring point (8) on the side away from the connecting flange (1), and there are several speed monitoring points (8).

5. The hydraulic safety coupling according to claim 1, wherein: The power end connector (2) is provided with an end cap (24) on the side away from the connecting flange (1), and the end cap (24) is fixed to the first outer ring (21) of the power end connector (2) by bolts.

6. The hydraulic safety coupling according to claim 1, wherein: A gap plate (4) for sealing the gap is provided at the connection between the load end connector (3) and the connecting flange (1).

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