A three-position clutch switching device

Abstract

The present application relates to a kind of three-position clutch switching device, including input shaft, clutch outer gear, manual chain wheel, clutch inner gear, clutch cover, pneumatic chain wheel, seat frame, switching pull mechanism;Input shaft is fixedly connected with clutch outer gear, clutch outer gear both sides are respectively connected manual chain wheel and pneumatic chain wheel by bearing, clutch outer gear is equipped with clutch inner gear and clutch cover outside, manual chain wheel and pneumatic chain wheel one end is equipped with chain wheel, the other end is equipped with the outer spline matched with clutch inner gear;Clutch cover is equipped with the switching pull mechanism of three-position clutch between seat frame.This three-power switching clutch switching device of the present application is used for the switching of three powers of special gate device.Under normal circumstances, it is driven by motor, in the case of power failure, it can be manually or pneumatically operated emergency operating mechanism to open and close the special gate device in emergency, improve the safety of special gate device, compact structure, simple operation.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of clutch device for large ship special gate, more particularly to a kind of three-position clutch switching device. BACKGROUND

[0002] Three-position clutch switching device is mainly to realize the switching of electric, manual and pneumatic three kinds of power of special gate device.

[0003] The existing clutch device field mainly exists following several problems:

[0004] (1) Generally, land hangar door is controlled by electricity, however, when power failure, motor or control system failure, driving system cannot be used, so that the control of hangar door cannot be guaranteed, resulting in work paralysis, unable to carry out subsequent work normally.

[0005] (2) For land sliding hangar door, driving system is hidden in the lower end of door body, and driving system adopts speed reducer. Speed reducer adopts motor brake with release device, when power failure or accident occurs, artificial release device is driven, and door leaf is pushed and pulled to walk, and in this process, special person must always ensure that release device is in corresponding position, so that time, labor and artificial are wasted.

[0006] (3) The existing land hangar door adopts hand electric clutch mechanism, in normal work, driving sprocket rotates together with driven sprocket, when power failure or failure, driving sprocket is disconnected from driven sprocket by pressing positioning hand wheel, driving pipe and lever, and driven sprocket is driven by sliding inner teeth, only disconnecting function is realized, and artificial pushing and pulling door body is still needed.

[0007] In summary, a three-position clutch switching device capable of switching three kinds of power of electric, manual and pneumatic is needed, for switching three kinds of power of special gate device. In normal case, motor drive is adopted, in power failure, manual or pneumatic emergency operation mechanism is used for emergency opening and closing special gate device. The safety of special gate device is improved, and the structure is compact and simple to operate. SUMMARY

[0008] A three-position clutch switching device is proposed according to the requirements of electric, manual and pneumatic three kinds of power switching of special gate device, and the interlocking characteristics of three kinds of power are met.

[0009] To achieve the above objectives, the technical solution of the present invention is: a three-position clutch switching device, comprising an input shaft, a clutch external gear, a manual sprocket, a clutch internal gear, a clutch sleeve, a pneumatic sprocket, a base, and a switching mechanism; the input shaft is fixedly connected to the clutch external gear, and the clutch external gear is provided with a manual sprocket and a pneumatic sprocket respectively connected to the manual sprocket and the pneumatic sprocket via bearings on both sides; the clutch external gear is provided with a clutch internal gear and a clutch sleeve outside the clutch external gear; one end of the manual sprocket and the pneumatic sprocket is provided with a sprocket, and the other end is provided with an external spline that matches the clutch internal gear; a three-position clutch switching mechanism is provided between the clutch sleeve and the base.

[0010] Furthermore, the input shaft and the external teeth of the clutch are connected by a key, the middle part of the external teeth of the clutch has an external spline structure, and the external teeth of the clutch are axially positioned by the shaft shoulder and the pressure plate.

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

[0012] Furthermore, the clutch sleeve and the internal clutch teeth are fixed together by a set screw, which is secured with a steel cable spring to prevent loosening, making the clutch sleeve and the internal clutch teeth a single unit; the internal space of the clutch external teeth and the manual sprocket and pneumatic sprocket is filled with grease.

[0013] Furthermore, when the clutch is in the neutral position, the clutch is in an electric state. At this time, the rotation of the input shaft drives the external gear of the clutch to rotate through the key, and neither the manual sprocket nor the pneumatic sprocket rotates.

[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 base via pin one; the middle of the shift fork is connected to the shift block via pin two and fixed with a shaft-mounted elastic retaining ring; the bottom of the shift fork is connected to the base via a copper sleeve and pin three and fixed with a shaft-mounted elastic retaining ring one, serving as a hinge point. The shift block is nested in the sliding groove of the clutch sleeve; the pressure rod is connected to pin one via a rivet, the spring passes through the pressure rod, and the handle is sleeved outside the pressure rod.

[0015] Furthermore, the seat frame is equipped with three independent positions: electric, manual, and pneumatic. The electric, manual, and pneumatic positions are switched by pressing and moving the handle.

[0016] Furthermore, when it is necessary to switch to the manual or pneumatic position, the pressure lever is pushed up and down in the shift fork by pressing the handle to compress the spring. The handle is then turned to allow pin one to slide in the slot 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, locking pin one in the corresponding manual or pneumatic position of the seat frame.

[0017] Furthermore, when the clutch sleeve slides axially, the rotation of the manual or pneumatic sprocket engages with the internal gear of the clutch through the external spline structure. The spline structure between the internal and external gears of the clutch drives the external gear of the clutch to rotate, which in turn drives the input shaft to rotate through the key connection.

[0018] Furthermore, the base frame is equipped with a limit switch at the corresponding position of the handle movement to trigger the manual or pneumatic position. The limit switch in the manual or pneumatic position transmits the signal to the electrical control system to achieve interlock control.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) This invention proposes a three-position clutch device that can be operated electrically, manually, or pneumatically, enabling the switching of three power sources for special gate 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 realize power transmission.

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

[0023] (4) Limit switches are set in the manual and pneumatic positions for signal feedback to achieve interlocking of the three power sources.

[0024] (5) This invention has been successfully applied to a special gate device for a large ship with excellent results. This invention can also be used in devices that require power switching. Attached Figure Description

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

[0026] Figure 2 for Figure 1 Enlarged view of a portion;

[0027] Figure 3 This is a K-direction view;

[0028] Figure 4 Main view;

[0029] Figure 5 This is a top view;

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

[0031] Figure 7 Diagram showing the electric, manual, and pneumatic positions of the seat frame;

[0032] In the diagram: 1. Input shaft, 2. Shaft retaining ring I, 3. Oil retaining ring, 4. Hole retaining ring, 5. Bearing, 6. Sleeve, 7. Key, 8. Set screw, 9. Steel cable spring, 10. Clutch internal gear, 11. Pneumatic sprocket, 12. Pressure plate, 13. Spring washer, 14. Bolt, 15. Clutch sleeve, 16. Clutch external gear, 17. Manual sprocket, 18. Handle, 19. Spring, 20. Pressure rod, 21. Rivet pin, 22. Base, 23. Shift fork, 24. Pin I, 25. Shift block, 26. Pin II, 27. Copper sleeve, 28. Pin III, 29. Shaft retaining ring II, 30. Manual position limit switch, 31. Pneumatic position limit switch, 32. Nameplate. Detailed Implementation

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

[0034] like Figures 1 to 7 As shown, the three-position clutch switching device proposed in this invention mainly consists of an input shaft 1, a key 7, a shaft elastic retaining ring 1 2, an oil retaining ring 3, a hole elastic retaining ring 4, a bearing 5, a sleeve 6, a clutch external gear 16, a manual sprocket 17, a clutch internal gear 10, a set screw 8, a steel cable spring 9, a clutch sleeve 15, a pneumatic sprocket 11, a pressure plate 12, a base 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 2 29, a handle 18, a spring 19, a pressure rod 20, a rivet 21, a manual position limit switch 30, a pneumatic position limit switch 31, and fasteners.

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

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

[0037] The clutch external gear 16 is connected to the manual sprocket 17 or the pneumatic sprocket via a bearing 5, which is positioned by an oil retainer ring 3, an elastic retainer ring 13, and a sleeve 6. The internal space between the clutch external gear 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 base 22 via pin 24. The middle of the shift fork 23 is connected to the shift block 25 via pin 26 and is fixed with a scissor-mounted elastic retaining ring. The bottom of the shift fork 23 is connected to the base 22 via a copper sleeve 27 and pin 28 and is fixed with a scissor-mounted elastic retaining ring 29, serving as a hinge point. The shift block 25 is nested in the groove of the clutch sleeve 15.

[0039] The clutch sleeve 15 is fixed to the clutch internal gear 10 by a set screw 8. The set screw 8 is secured by a steel cable spring 9 to prevent loosening, so that the clutch sleeve 15 and the clutch internal gear 10 become a whole.

[0040] When the clutch is in the neutral position, the device is in electric mode. At this time, the input shaft 1 rotates and drives the clutch external gear 16 to rotate through the key. Neither the manual sprocket 17 nor the pneumatic sprocket 11 rotates.

[0041] The seat 22 has three independent positions: electric (A), manual (B), and pneumatic (C). These three positions are switched by pressing and moving the handle 18.

[0042] The pressure rod 20 is connected to pin 24 via rivet 21. Spring 19 is threaded through the pressure rod 20, and handle 18 is sleeved on the pressure rod 20. When it is necessary to switch to the manual B position or the pneumatic C position, the pressure rod 20 is pushed up and down within the shift fork 23 by pressing the handle 18 to compress the spring 19. The handle 18 is then moved to allow pin 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 the spring 19 resets the position, locking pin 24 in the corresponding manual B or pneumatic C position of the seat frame.

[0043] At this time, the clutch sleeve slides axially, and the rotation of the manual sprocket 17 or the pneumatic sprocket 11 engages with the clutch internal gear 10 through the external spline structure. The clutch internal gear 10 and the clutch external gear 16 engage through the spline structure, driving the clutch external gear 16 to rotate, which in turn drives the input shaft 1 to rotate through the key connection.

[0044] At the same time, handle 18 triggers the limit switch in the manual B or pneumatic C position, transmitting the signal to the electrical control system to achieve interlock control.

Claims

1. A three-position clutch switching device, characterized in that: The system includes an input shaft, external clutch gears, a manual sprocket, internal clutch gears, a clutch sleeve, a pneumatic sprocket, a mounting bracket, and a switching mechanism. The input shaft and external clutch gears are connected by a key. The external clutch gears have bearings on both sides connecting the manual sprocket and the pneumatic sprocket respectively. The external clutch gears also have internal clutch gears and a clutch sleeve. One end of each manual and pneumatic sprocket has a sprocket, and the other end has an external spline that mates with the internal clutch gears. A three-position clutch switching mechanism is located between the clutch sleeve and the mounting bracket to drive the clutch sleeve axially. The middle part of the external clutch gears has an external spline structure. The clutch sleeve and the internal gear of the clutch are fixed together by set screws, making the clutch sleeve and the internal gear of the clutch a whole. When the clutch is in the neutral position, the clutch is in electric state. At this time, the rotation of the input shaft drives the external gear of the clutch to rotate through the key, and neither the manual sprocket nor the pneumatic sprocket rotates. When the clutch sleeve slides axially to the manual sprocket or the pneumatic sprocket, the rotation of the manual sprocket or the pneumatic sprocket engages with the internal gear of the clutch through the external spline structure. The external spline structure in the middle part of the internal gear of the clutch and the external gear of the clutch engages with the external gear of the clutch, driving the external gear of the clutch to rotate, and driving the input shaft to rotate through the key connection.

2. The three-position clutch switching device according to claim 1, characterized in that: The external gear of the clutch is axially positioned by the shaft shoulder and the pressure plate.

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

4. The three-position clutch switching device according to claim 1, characterized in that: The set screw is secured with a steel cable spring; the internal space between the clutch external teeth and the manual and pneumatic sprockets is filled with grease.

5. The three-position clutch switching device according to claim 1, characterized in that: 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 base via a pin; the middle of the shift fork is connected to the shift block via a pin and fixed with a shaft elastic retaining ring; the bottom of the shift fork is connected to the base via a copper sleeve and pin three and fixed with a shaft elastic retaining ring, serving as a hinge point; the shift block is nested in the sliding groove of the clutch sleeve; the pressure rod is connected to pin one via a rivet pin, the spring passes through the pressure rod, and the handle is sleeved outside the pressure rod.

6. The three-position clutch switching device according to claim 5, characterized in that: The seat frame has three independent positions: electric, manual, and pneumatic. The electric, manual, and pneumatic positions are switched by pressing and moving the handle.

7. The three-position clutch switching device according to claim 6, characterized in that: When switching to manual or pneumatic position, press the handle to compress the spring and push the lever up and down in the shift fork. Move the handle to let pin one slide in the slot of the seat. When the handle reaches the manual or pneumatic position, release the handle. The spring will reset the handle and lock pin one in the corresponding manual or pneumatic position of the seat.

8. The three-position clutch switching device according to claim 1, characterized in that: The base frame is equipped with a limit switch at the corresponding position of the handle movement to trigger the manual or pneumatic position. The limit switch of the manual or pneumatic position transmits the signal to the electrical control system to realize interlock control.

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