Three-position clutch switching device

Abstract

The invention relates to a three-position clutch switching device which comprises an input shaft, clutch outer teeth, a manual chain wheel, clutch inner teeth, a clutch sleeve, a pneumatic chain wheel, a seat frame and a switching shifting mechanism. The input shaft is fixedly connected with clutch outer teeth, two sides of the clutch outer teeth are respectively connected with a manual chain wheel and a pneumatic chain wheel through bearings, clutch outer teeth are externally provided with clutch inner teeth and a clutch sleeve, one ends of the manual chain wheel and the pneumatic chain wheel are provided with chain wheels, and the other ends of the manual chain wheel and the pneumatic chain wheel are provided with external splines matched with the clutch inner teeth; and a three-position clutch switching shifting mechanism is arranged between the clutch sleeve and the seat frame. The clutch switching device for switching the three kinds of power is used for switching the three kinds of power of a special gate device. The special gate device is driven by the motor normally, and the special gate device can be opened and closed emergently by a manual or pneumatic emergency operating mechanism in case of power failure, so that the safety of the special gate device is improved, the structure is compact, and the operation is simple.

Description

Technical Field

[0001] The invention relates to a clutch device used on a special door of a large ship, in particular to a three-position clutch switching device. Background Art

[0002] The main function of the three-position clutch switching device is to realize the switching of the three power modes of the special door device: electric, manual and pneumatic.

[0003] The existing clutch device field mainly has the following problems:

[0004] (1) Generally, hangar doors on land are controlled by electricity. However, when there is a power outage or a motor or control system failure, the drive system cannot be used, making it impossible to guarantee the control of the hangar door, resulting in work paralysis and inability to carry out subsequent work normally.

[0005] (2) For land-based sliding hangar doors, the drive system is hidden at the lower end of the door body, and the drive system uses a reducer. The reducer uses an electric motor brake with a release device. When a power outage or accident occurs, it is often necessary to manually drive the release device while pushing and pulling the door leaf. During this process, a dedicated person must always keep the release device in the corresponding position, which is time-consuming, labor-intensive and labor-intensive.

[0006] (3) The existing land hangar door adopts a manual electric clutch mechanism. In normal operation, the driving sprocket and the driven sprocket rotate together. In the event of a power outage or failure, the positioning hand wheel is pressed to drive the transmission tube and the lever, and the internal teeth slide to move the driven sprocket, thereby disconnecting the connection between the driven sprocket and the driving sprocket. This only serves as a disconnection function, and the door body still needs to be pushed and pulled manually.

[0007] In summary, it is necessary to design a clutch switching device that can switch between three types of power: electric, manual, and pneumatic, for switching between the three types of power for special door devices. Under normal circumstances, it is driven by a motor. In the event of power failure, a manual or pneumatic emergency operating mechanism can be used to open and close the special door device in an emergency. This improves the safety of the special door device, has a compact structure, and is easy to operate. Summary of the invention

[0008] Aiming at the requirements of switching between three kinds of power, namely electric, manual and pneumatic, for special door devices, and satisfying the characteristics of interlocking between the three kinds of power, the present invention proposes a three-position clutch switching device.

[0009] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a three-position clutch switching device, including an input shaft, clutch outer teeth, a manual sprocket, clutch inner teeth, a clutch sleeve, a pneumatic sprocket, a seat frame, and a switching pulling mechanism; the input shaft is fixedly connected to the clutch outer teeth, and manual sprockets and pneumatic sprockets are respectively connected to the clutch outer teeth on both sides through bearings, clutch inner teeth and a clutch sleeve are arranged outside the clutch outer teeth, and a sprocket is arranged at one end of the manual sprocket and the pneumatic sprocket, and an external spline matching the clutch inner teeth is arranged at the other end; a three-position clutch switching pulling mechanism is arranged between the clutch sleeve and the seat frame.

[0010] Furthermore, the input shaft and the clutch outer teeth are connected via a key, the middle portion of the clutch outer teeth is an external spline structure, and the clutch outer teeth are axially positioned via a shaft shoulder and a pressure plate.

[0011] Furthermore, the manual sprocket and the pneumatic sprocket are connected to a manual or pneumatic power source through chains, respectively.

[0012] Furthermore, the clutch sleeve and the clutch inner teeth are fixed by a set screw, and the set screw adopts a steel cable spring to prevent loosening, so that the clutch sleeve and the clutch inner teeth become a whole; the internal space of the clutch outer teeth and the manual sprocket and the pneumatic sprocket is filled with grease.

[0013] Furthermore, when the clutch device is in the middle position, the clutch device is in an electric state. At this time, the rotation of the input shaft drives the outer teeth of the clutch to rotate through the key, and the manual sprocket and the pneumatic sprocket do not rotate.

[0014] Furthermore, the switching mechanism includes a shift fork, a shift block, a handle, a spring, and a pressure rod. The top of the shift fork is connected to the seat frame through pin 1; the middle of the shift fork is connected to the shift block through pin 2 and fixed with a shaft elastic retaining ring; the bottom of the shift fork is connected to the seat frame through a copper sleeve and pin 3, and fixed with a shaft elastic retaining ring 1 as a hinge point. The shift block is nested in the slide groove of the clutch sleeve; the pressure rod is connected to pin 1 through a rivet pin, the spring is worn on the pressure rod, and the handle is sleeved outside the pressure rod.

[0015] Furthermore, the seat frame is provided with three positions, namely electric, manual and pneumatic, which are independent of each other; the three positions are switched by pressing the moving handle.

[0016] Furthermore, when it is necessary to switch to the manual position or the pneumatic position, the handle is pressed to compress the spring to push the pressure rod up and down in the fork, and the handle is turned to allow pin 1 to slide in the groove of the seat frame. When the handle reaches the manual or pneumatic position, the handle is released and reset under the action of the spring, pin 1 is stuck in the manual or pneumatic position corresponding to the seat frame and locked.

[0017] Furthermore, when the clutch sleeve slides axially, the rotation of the manual sprocket or pneumatic sprocket cooperates with the inner teeth of the clutch through the external spline structure, and the spline structure between the inner teeth of the clutch and the outer teeth of the clutch cooperates to drive the outer teeth of the clutch to rotate, and drives the input shaft to rotate through the key connection.

[0018] Furthermore, a travel switch for triggering a manual or pneumatic position is provided at a position on the seat frame corresponding to the movement of the handle, and the travel switch at the manual or pneumatic position transmits a signal to the electrical control system to achieve interlocking control.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention proposes a clutch device capable of three-position operation: electric, manual, and pneumatic, which can realize the switching of three kinds of power for special door devices.

[0021] (2) The present invention uses a sprocket with external splines to cooperate with the internal teeth of a clutch with an internal spline structure to achieve power transmission.

[0022] (3) The present invention adopts a seat frame, which is provided with three positions: electric, manual and pneumatic. The three positions are independent of each other to achieve mechanical interlocking.

[0023] (4) Travel switches are set at the manual position and pneumatic position for signal feedback to achieve interlocking of the three powers.

[0024] (5) The present invention has been successfully applied to a special door device of a large ship with good results. The present invention can also be used for devices that require power switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of a three-position clutch reversing device of the present invention;

[0026] Figure 2 for Figure 1 Magnified partial view;

[0027] Figure 3 It is the K-direction view;

[0028] Figure 4 is the main view;

[0029] Figure 5 It is a top view;

[0030] Figure 6 for Figure 5 Partial cross-sectional view;

[0031] Figure 7 There are three position diagrams for the seat frame: electric, manual, and pneumatic;

[0032] In the figure: 1. input shaft, 2. circlip 1 for shaft, 3. oil retaining ring, 4. circlip 2 for hole, 5. bearing, 6. sleeve, 7. key, 8. set screw, 9. cable spring, 10. clutch inner teeth, 11. pneumatic sprocket, 12. pressure plate, 13. spring washer, 14. bolt, 15. clutch sleeve, 16. clutch outer teeth, 17. manual sprocket, 18. handle, 19. spring, 20. pressure rod, 21. rivet pin, 22. seat frame, 23. shift fork, 24. pin 1, 25. shift block, 26. pin 2, 27. copper sleeve, 28. pin 3, 29. circlip 2 for shaft, 30. manual position travel switch, 31. pneumatic position travel switch, 32. nameplate. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figures 1 to 7 As shown, a three-position clutch switching device proposed by the present invention is mainly composed of an input shaft 1, a key 7, a shaft elastic retaining ring 2, an oil retaining ring 3, a hole elastic retaining ring 4, a bearing 5, a sleeve 6, a clutch outer tooth 16, a manual sprocket 17, a clutch inner tooth 10, a set screw 8, a steel cable spring 9, a clutch sleeve 15, a pneumatic sprocket 11, a pressure plate 12, a seat frame 22, a shift fork 23, a shift block 25, a pin 1 24, a pin 26, a pin 3 28, a copper sleeve 27, a shaft elastic retaining ring 29, a handle 18, a spring 19, a pressure rod 20, a rivet pin 21, a manual position travel switch 30, a pneumatic position travel switch 31 and fasteners.

[0035] The input shaft 1 is connected to the clutch outer teeth 16 via a key 7. The middle portion of the clutch outer teeth 16 is an external spline structure, and the clutch outer teeth 16 are axially positioned via a shaft shoulder and a pressure plate 12.

[0036] One end of the manual sprocket wheel 17 or the pneumatic sprocket wheel 11 is a sprocket wheel, which is connected to a manual or pneumatic power source through a chain. The other end of the manual sprocket wheel 17 or the pneumatic sprocket wheel 11 is an external spline.

[0037] The clutch outer teeth 16 are connected with the manual sprocket 17 or the pneumatic sprocket through the bearing 5, and the bearing 5 is positioned by the oil retaining ring 3, the elastic retaining ring 13, and the sleeve 6. The inner space of the clutch outer teeth 16 and the manual sprocket 17 or the pneumatic sprocket 11 is filled with grease.

[0038] The top of the shift fork 23 is connected to the seat frame 22 through the pin 1 24. The middle of the shift fork 23 is connected to the shift block 25 through the pin 26 and fixed with the shaft elastic retaining ring. The bottom of the shift fork 23 is connected to the seat frame 22 through the copper sleeve 27 and the pin 3 28 and fixed with the shaft elastic retaining ring 1 29 as a hinge point. The shift block 25 is nested in the slide groove of the clutch sleeve 15.

[0039] The clutch sleeve 15 and the clutch inner teeth 10 are fixed by means of a set screw 8, and the set screw 8 is prevented from loosening by a steel cable spring 9, so that the clutch sleeve 15 and the clutch inner teeth 10 become a whole.

[0040] When the clutch device is in the middle position, the device is in the electric state. At this time, the rotation of the input shaft 1 drives the clutch outer teeth 16 to rotate through the key, and the manual sprocket 17 and the pneumatic sprocket 11 do not rotate.

[0041] The seat frame 22 is provided with three positions: electric A, manual B, and pneumatic C. The three positions are independent of each other. The three positions are switched by pressing the moving handle 18.

[0042] The pressure rod 20 is connected to the pin 1 24 through a rivet pin 21, the spring 19 is passed through the pressure rod 20, and the handle 18 is sleeved outside the pressure rod 20. When it is necessary to switch to the manual B position or the pneumatic C position, the spring 19 is compressed by pressing the handle 18 to push the pressure rod 20 to move up and down in the fork 23, and the handle 18 is moved to allow the pin 1 24 to slide in the groove of the seat frame. When the handle 18 reaches the manual B or pneumatic C position, the handle 18 is released and reset under the action of the spring 19, and the pin 1 24 is stuck in the manual B or pneumatic C position corresponding to the seat frame and locked.

[0043] At this time, the clutch sleeve slides axially, and the rotation of the manual sprocket 17 or the pneumatic sprocket 11 cooperates with the clutch inner teeth 10 through the external spline structure. The spline structure between the clutch inner teeth 10 and the clutch outer teeth 16 drives the clutch outer teeth 16 to rotate, and drives the input shaft 1 to rotate through the key connection.

[0044] At the same time, the handle 18 triggers the travel switch of the manual B or pneumatic C position, and transmits the signal to the electrical control system to realize interlocking control.

Claims

1. A three-position clutch switching device, characterized in that: It includes an input shaft, clutch outer teeth, a manual sprocket, clutch inner teeth, a clutch sleeve, a pneumatic sprocket, a seat frame, and a switching and pulling mechanism; the input shaft is fixedly connected to the clutch outer teeth, and manual sprockets and pneumatic sprockets are respectively connected to the clutch outer teeth on both sides through bearings, clutch inner teeth and a clutch sleeve are arranged outside the clutch outer teeth, a sprocket is arranged at one end of the manual sprocket and the pneumatic sprocket, and an external spline matching the clutch inner teeth is arranged at the other end; a three-position clutch switching and pulling mechanism is arranged between the clutch sleeve and the seat frame.

2. The three-position clutch switching device according to claim 1, characterized in that: The input shaft and the clutch outer teeth are connected by a key, the middle part of the clutch outer teeth is an external spline structure, and the clutch outer teeth are axially positioned by a shaft shoulder and a pressure plate.

3. The three-position clutch switching device according to claim 1, characterized in that: The manual sprocket and the pneumatic sprocket are connected to a manual or pneumatic power source through chains respectively.

4. The three-position clutch switching device according to claim 1, characterized in that: The clutch sleeve and the clutch inner teeth are fixed by set screws, and the set screws are prevented from loosening by steel cable springs, so that the clutch sleeve and the clutch inner teeth become a whole; the internal space of the clutch outer teeth and the manual sprocket and the pneumatic sprocket is filled with grease.

5. The three-position clutch switching device according to claim 1, characterized in that: When the clutch device is in the middle position, the clutch device is in the electric state. At this time, the rotation of the input shaft drives the clutch outer teeth to rotate through the key, and the manual sprocket and the pneumatic sprocket do not rotate.

6. The three-position clutch switching device according to claim 1, characterized in that: The switching pull mechanism includes a shift fork, a shift block, a handle, a spring, and a pressure rod. The top of the shift fork is connected to the seat frame through a pin; the middle of the shift fork is connected to the shift block through a pin and is fixed with an elastic retaining ring on the shaft; the bottom of the shift fork is connected to the seat frame through a copper sleeve and pin three, and is fixed with an elastic retaining ring on the shaft as a hinge point; the shift block is nested in the slide groove of the clutch sleeve; the pressure rod is connected to pin one through a rivet pin, the spring is passed through the pressure rod, and the handle is sleeved outside the pressure rod.

7. The three-position clutch switching device according to claim 6, characterized in that: The seat frame is provided with three positions: electric, manual and pneumatic, which are independent of each other; the three positions are switched by pressing the moving handle.

8. The three-position clutch switching device according to claim 7, characterized in that: When it is necessary to switch to the manual position or the pneumatic position, the handle is pressed to compress the spring to push the pressure rod up and down in the fork, and the handle is moved to allow pin 1 to slide in the groove of the seat frame. When the handle reaches the manual or pneumatic position, the handle is released and reset under the action of the spring, pin 1 is stuck in the manual or pneumatic position corresponding to the seat frame and locked.

9. The three-position clutch switching device according to claim 7, characterized in that: When the clutch sleeve slides axially, the rotation of the manual sprocket or pneumatic sprocket cooperates with the inner teeth of the clutch through the external spline structure, and the spline structure between the inner teeth of the clutch and the outer teeth of the clutch cooperates to drive the outer teeth of the clutch to rotate, and drives the input shaft to rotate through the key connection.

10. The three-position clutch switching device according to claim 1, characterized in that: A travel switch for triggering a manual or pneumatic position is provided at a position on the seat frame corresponding to the handle movement position. The travel switch at the manual or pneumatic position transmits a signal to the electrical control system to realize interlocking control.

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