The hydraulic locking apparatus of heavy duty crane rotating mechanism
Technical field
The utility model relates to latching device, relates in particular to a kind of hydraulic locking apparatus for the heavy duty crane rotating mechanism.
Background technology
Heavy duty crane need to guarantee that whole rotating mechanism is reliably static with respect to pedestal on hand of rotation under static or non-rotating lifting operation state, to prevent rotation platform meet accident when static and the non-rotating lifting operation rotation and initiation Hoisting Security accident.
At present, the heavy duty crane rotating mechanism is based on tribology principle to carry out, and the method for its friction lock is: utilize wedge to be achieved.After rotating mechanism rotates to correct position, by manual operation, wedge is placed on the bottom surface of rotating mechanism and fixedly between the bottom surface, rotating mechanism is stopped the rotation; When hoisting crane need to be rotated again, then wedge is taken out.The hoisting crane position of rotation is locked by artificial placement wedge mode because employing is above-mentioned, except operation is cumbersome, also exist in use potential safety hazard; And due to manually-operated error, can not realize the reliable locking of hoisting crane.
The utility model content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that prior art exists, and a kind of hydraulic locking apparatus is provided, its when the work of locking bearing pin, by the deadweight of hydraulic efficiency pressure system and locking bearing pin, just can the locking rotating rotation mechanism; Under locking bearing pin off position, by hydraulic efficiency pressure system and safety pin, braking pin shaft is fixed on rotating mechanism reliably, guarantee not occur the release phenomenon that causes because of maloperation under this state.
The purpose of this utility model is realized by following technical scheme:
A kind of hydraulic locking apparatus of heavy duty crane rotating mechanism is characterized in that: comprising: pedestal, base socket sleeve, turnbarrel, locking bearing pin, limit sensors, safety pin, hydraulic actuating cylinder, and wherein, base socket sleeve is arranged on pedestal; Rotating mechanism is positioned on base socket sleeve, and suit one turnbarrel in rotating mechanism, movable set one locking bearing pin, be equipped with a bracing frame on the locking bearing pin in this turnbarrel, and this bracing frame is by connecting rod and be located at that shackle plate on connecting rod will be locked bearing pin and hydraulic actuating cylinder connects as one; Limit sensors is arranged on rotating mechanism, and safety pin inserts the connecting bore that is positioned on the locking bearing pin.
Described pedestal is: cylinder-like structure, this pedestal coordinates with the locking bearing pin, and is arranged on fixed sturcture.
Support frame as described above is door type tower structure.
One guide plate is installed on described safety pin, and this guide plate is trumpet type.
The beneficial effects of the utility model: the utility model is owing to adopting technique scheme, its when the work of locking bearing pin, by the deadweight of hydraulic efficiency pressure system and locking bearing pin, just can the locking rotating rotation mechanism; Under locking bearing pin off position, by hydraulic efficiency pressure system and safety pin, braking pin shaft is fixed on rotating mechanism reliably, guarantee not occur the release phenomenon that causes because of maloperation under this state.
Description of drawings:
Fig. 1 is that the utility model structure master looks schematic diagram.
Fig. 2 be in Fig. 1 A-A to schematic diagram.
Fig. 3 be in Fig. 1 B-B to schematic diagram.
Fig. 4 be in Fig. 3 C-C to schematic diagram.
Fig. 5 is that the utility model safety pin inserts schematic diagram.
Fig. 6 is the utility model locking state figure.
Fig. 7 is the utility model released state figure.
Major label description in figure:
1. pedestal, 2. base socket sleeve, 3. turnbarrel, 4. rotating mechanism, 5. locking bearing pin, 6. limit sensors, 7. safety pin, 8. bracing frame, 9. connecting rod, 10. hydraulic actuating cylinder, 11. shackle plates, 12. guide plates, 13. guide plates.
The specific embodiment
As Fig. 1-shown in Figure 4, the utility model mainly comprises: pedestal 1, base socket sleeve 2, turnbarrel 3, locking bearing pin 5, limit sensors 6, safety pin 7, bracing frame 8, connecting rod 9, hydraulic actuating cylinder 10, wherein, base socket sleeve 2 adopts welding manner to be arranged on pedestal 1; Rotating mechanism 4 is positioned on base socket sleeve 2, and at interior suit one turnbarrel 3 of rotating mechanism 4, the interior employing running-fit of this turnbarrel 3 mode is set with a locking bearing pin 5, makes locking bearing pin 5 to move up and down in turnbarrel 3 and base socket sleeve 2; On locking bearing pin 5, mode with bolts is equipped with a bracing frame 8, and this bracing frame 8 is by connecting rod 9 and be located at that shackle plate 11 on connecting rod 9 will be locked bearing pin 5 and hydraulic actuating cylinder 10 connects as one; On locking bearing pin 5, mode with bolts is equipped with a guide plate 13, is free to slide to satisfy bracing frame 8 guide plate 13 in and to lock 5 of bearing pins; Limit sensors 6 is arranged on rotating mechanism 4, and limit sensors 6 by with the contacting of safety pin 7, control the descending stroke of locking bearing pin 5.
As shown in Figure 5, guide plate 12 is installed on safety pin 7, this guide plate 12 is trumpet type, and safety pin 7 can insert the connecting bore that is positioned on locking bearing pin 5 smoothly under guide plate 12 guiding.Guide plate 12 play the guiding role, and its extroversion matches with bracing frame 8, is used for limitation lock bearing pin 5 and moves along bracing frame 8.
As shown in Figure 6, during locking, extract safety pin 7, locking bearing pin 5 inserts in base socket sleeve 2 under hydraulic actuating cylinder 10 Gravitative Loads, and the locking rotating rotation mechanism 4 effectively, satisfy the job requirement of hoisting crane under the rotating mechanism quiescence.
Said base 1 is: cylinder-like structure, pedestal 1 coordinates with locking bearing pin 5, and adopts welding manner to be fixed on fixed sturcture.
The door type tower structure of above-mentioned bracing frame 8 for adopting shaped steel to make, bracing frame 8 is integrally connected with rotating mechanism 4, is used for supporting cylinder 10.
As shown in Figure 7, at non-locking state, the mechanisms such as locking bearing pin 5 are fixed on rotational structure 4 by safety pin 7 and rotate with rotating mechanism 4.
The above, it is only preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.