CN210795598U - Rotary stretching and stabilizing device for crane - Google Patents

Abstract

The utility model provides a tensile securing device of loop wheel machine gyration, includes general post and rotary platform, and rotary platform locates general post upper end, its characterized in that: annular backup pad is established to the periphery cover of general post, backup pad and general post fixed connection, the top surface fixed mounting ring gear of backup pad, the top of backup pad is equipped with the vertical pivot of several, the dysmorphism hole is all seted up to the top surface of pivot, the equal fixed mounting gear of lower extreme of pivot, the gear all meshes with the ring gear, rotary platform's bottom surface fixed mounting several rectangular block, the cylindrical slot is all seted up to the bottom surface of rectangular block, the equal fixed mounting bearing of opening part in cylindrical slot, the periphery of pivot all with the inner circle fixed connection of the bearing that corresponds, the top surface fixed mounting swing pneumatic cylinder in cylindrical slot. The utility model discloses avoided offering the locking hole on big ring gear, consequently can improve holistic reliability of loop wheel machine device and life, the utility model discloses convenient operation, stability is high, is fit for using widely at rotary platform such as loop wheel machine.

Description

Rotary stretching and stabilizing device for crane

Technical Field

The utility model belongs to loop wheel machine equipment design field, specifically speaking are tensile securing device of loop wheel machine gyration.

Background

The existing crane rotation stretching and stabilizing device locks the rotation mechanism through a locking pin, when the rotation mechanism stops, the locking pin cannot be ensured to be just inserted into a locking hole, the rotation mechanism needs to be stopped at a specific position and continuously adjusted to enable the locking pin to be just inserted into the locking hole, time is wasted in use, in an ocean working environment, due to the impact of sea waves or sea wind on the whole working platform, the working platform frequently shakes, the crane frequently shakes along with the whole working platform, the locking hole of the existing locking mechanism is positioned on the surface of a large gear ring, due to the frequent shaking of the crane, the locking pin frequently impacts the locking hole, the surface fatigue failure is easily generated to cause the damage of the large gear ring, the safety is low, the locking hole is arranged on the large gear ring to reduce the strength of the large gear ring, the service life of the large gear ring is shortened, and the mode only plays a role when the rotation mechanism stops, the stability of the turning device during turning cannot be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a loop wheel machine rotary stretching securing device for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

the utility model provides a tensile securing device of loop wheel machine gyration, includes general post and rotary platform, and rotary platform locates general post upper end, its characterized in that: annular backup pad is established to the periphery cover of general post, backup pad and general post fixed connection, the top surface fixed mounting ring gear of backup pad, the top of backup pad is equipped with the vertical pivot of several, the dysmorphism hole is all seted up to the top surface of pivot, the equal fixed mounting gear of lower extreme of pivot, the gear all meshes with the ring gear, rotary platform's bottom surface fixed mounting several rectangular block, the cylindrical slot is all seted up to the bottom surface of rectangular block, the equal fixed mounting bearing of opening part in cylindrical slot, the periphery of pivot all with the inner circle fixed connection of the bearing that corresponds, the top surface fixed mounting swing pneumatic cylinder in cylindrical slot, the output shaft fixed connection electric putter's of swing pneumatic cylinder upper end.

According to the rotary stretching and stabilizing device for the crane, the position sensor is fixedly installed at the bottom of the electric push rod, the target object for being identified by the position sensor is fixedly installed on the top surface of the rotating shaft, and the controller is in circuit connection with the position sensor, the swing hydraulic cylinder and the electric push rod.

According to the stabilizing device for rotary stretching of the crane, the bottom surface of the supporting plate is fixedly provided with the plurality of rib plates, and one side of each rib plate is fixedly connected with the general column.

According to the slewing and stretching stabilizing device for the crane, the rotating shaft, the inner gear ring and the gear are all made of high-strength structural steel.

According to the slewing and stretching stabilizing device for the crane, the special-shaped hole is in a regular polygon shape.

The utility model has the advantages that: when the utility model is used, when the rotary platform rotates, the gear can do circular motion around the general column along the inner gear ring, when the movable rod of the electric push rod is not inserted into the special-shaped hole, the rotating shaft can rotate in the cylindrical groove, the rotating shaft, the gear and the inner gear ring are mutually matched, the bottom surface of the gear is in clearance fit with the top surface of the supporting plate, namely, when the rotary platform inclines under the action of wind power or sea wave, the gear at the low end can be contacted with the supporting plate to prevent the rotary platform from being inclined, the rotary platform plays a supporting role when moving, the influence of sea wind on the crane is lightened, the rotary platform is more stable when rotating and stretching, when the rotary platform stops rotating, the controller is started, the controller firstly starts the swing hydraulic cylinder to rotate the output shaft to adjust the relative position of the movable rod of the electric push rod, when the position sensor identifies the position of the target object, the movable rod of the electric push rod can, position sensor gives the controller with the signal transmission, and the controller makes swing hydraulic cylinder's output shaft stall, and it is downthehole that the controller makes the movable rod of electric push rod insert the dysmorphism, because gear and the ring gear meshing of pivot lower extreme, the pivot can not rotate this moment, so rotary platform also can not rotate this moment to realize rotary platform's locking, because the ring gear is engaged with the gear all the time together, so can realize rotary platform optional position's locking, the utility model discloses avoided seting up the locking hole on big ring gear, consequently can improve holistic reliability of loop wheel machine device and life, the utility model discloses convenient operation, stability is high, is fit for using widely at rotary platform such as loop wheel machine.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is an enlarged view of section I of FIG. 1; fig. 3 is a block diagram of the circuit module of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a tensile securing device of loop wheel machine gyration, as shown in the figure, including general post 2 and rotary platform 3, rotary platform 3 locates 2 upper ends of general post, rotary platform 3's top surface installation davit, and rotary platform 3 is located the top of backup pad 1, its characterized in that: an annular support plate 1 is sleeved on the periphery of a military column 2, the support plate 1 is fixedly connected with the military column 2, the military column 2 is rotatably arranged on a crane base, an inner gear ring 4 is fixedly arranged on the top surface of the support plate 1, the inner gear ring 4 is collinear with the central line of the military column 2, a plurality of vertical rotating shafts 5 are arranged above the support plate 1, the rotating shafts 5 are uniformly distributed on the periphery of the military column 2, special-shaped holes 6 are formed in the top surfaces of the rotating shafts 5, gears 7 are fixedly arranged at the lower ends of the rotating shafts 5, the gears 7 are respectively meshed with the inner gear ring 4, a plurality of rectangular blocks 8 are fixedly arranged on the bottom surface of a rotary platform 3, cylindrical grooves 9 are formed in the bottom surfaces of the rectangular blocks 8, bearings 10 are fixedly arranged at the openings of the cylindrical grooves 9, the periphery of the rotating shafts 5 is fixedly connected with the inner rings of the corresponding bearings 10, swing hydraulic cylinders 12 are fixedly arranged on the, the electric push rod 13 is connected with a power circuit, the lower end of the movable rod of the electric push rod 13 is the same as the special-shaped hole 6 in shape, and the lower part of the periphery of the movable rod of the electric push rod 13 can be in contact fit with the inner wall of the special-shaped hole 6. When the utility model is used, when the rotary platform 3 rotates, the gear 7 can do circular motion around the general column 2 along the inner gear ring 5, when the movable rod of the electric push rod 13 is not inserted into the special-shaped hole 6, the rotating shaft 5 can rotate in the cylindrical groove 9, the rotating shaft 5, the gear 7 and the inner gear ring 4 are mutually matched, the bottom surface of the gear 7 is in clearance fit with the top surface of the supporting plate 1, namely, when the rotary platform 3 inclines under the action of wind power or sea wave, the gear 7 at the low end can be contacted with the supporting plate 1 to restrain the inclination of the rotary platform 3, the support function is played when the rotary platform moves, the influence of sea wind on the crane is lightened, the rotary platform is more stable when the rotary platform rotates and stretches, when the rotary platform stops rotating, the controller is started, the controller firstly enables the output shaft of the swing hydraulic cylinder 12 to rotate to adjust the relative position of the movable rod of the electric push rod 13, when the position sensor, at this moment, the movable rod of electric push rod 13 can insert in special-shaped hole 6, position sensor 11 gives the controller with signal transmission, the controller makes swing hydraulic cylinder 12's output shaft stall, the controller makes electric push rod 13's movable rod insert in special-shaped hole 6, because gear 7 and the meshing of ring gear 4 of 5 lower extremes of pivot, pivot 5 can not rotate this moment, so rotary platform 3 also can not rotate this moment, thereby realize rotary platform 3's locking, because ring gear 4 meshes together with gear 5 all the time, so can realize rotary platform 3 optional position's locking, the utility model discloses avoided setting up the locking hole on big ring gear, consequently can improve the holistic reliability of loop wheel machine device and life, the utility model discloses convenient operation, stability is high, is fit for using widely at rotary platforms such as loop wheel machine.

Specifically, as shown in fig. 2, the bottom of the electric push rod 13 described in this embodiment is fixedly mounted with a position sensor 11, the top surface of the rotating shaft 5 is fixedly mounted with a target 14 for the position sensor 11 to recognize, and the electric push rod further includes a controller electrically connected to the position sensor 11, the swing hydraulic cylinder 12 and the electric push rod 13, the controller is disposed in the control chamber of the rotary platform, and the controller is a PLC controller or a single chip microcomputer. The position sensor is used for measuring the relative position of a movable rod of the electric push rod 13 and the special-shaped hole 6, when the position sensor 11 identifies a target object 14, the movable rod of the electric push rod 13 can be inserted into the special-shaped hole 6, when the rotating shaft 5 needs to be locked, a user starts the controller, the controller controls the swing hydraulic cylinder 12 to work, an output shaft of the swing hydraulic cylinder 12 rotates and drives the electric push rod 13 to rotate together, after the position sensor 11 identifies the target object 14, the position sensor 11 transmits a signal to the controller, the controller controls the swing hydraulic cylinder 12 to stop moving, then the controller controls the electric push rod 13 to extend so that the movable rod is inserted into the special-shaped hole 6, the locking of the rotating shaft 5 is realized, when the locking is not needed, the user can directly control the movable rod of the electric push rod 13 to be separated from the special-shaped hole 6 through the controller, at the moment, the rotating, the controller is used for controlling to improve the locking accuracy.

Specifically, as shown in fig. 1, a plurality of ribs 15 are fixedly installed on the bottom surface of the support plate 1, and one side of the rib 15 is fixedly connected to the general column 2. The rib plate 15 supports the support plate 1, and can further improve the stability of the support plate 1.

Furthermore, as shown in fig. 2, the rotating shaft 5, the ring gear 4 and the gear 7 of the present embodiment are all made of high-strength structural steel. This material has good welding performance, plastic toughness and processing technology nature, and it is big to have better corrosion resistance intensity, can resist great moment of torsion, is fit for being used for the utility model discloses on.

Further, as shown in fig. 2, the irregular hole 6 of the present embodiment is a regular polygon. After the movable rod lower extreme of electricity push rod 13 inserted dysmorphism hole 6, the joint was realized with dysmorphism hole 6 to the lower extreme of the movable rod 13 of electricity push rod 13 to realize the fixed connection of electricity push rod 13 and dysmorphism hole 6, make pivot 5 unable rotation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. The utility model provides a tensile securing device of loop wheel machine gyration, includes general post (2) and rotary platform (3), and rotary platform (3) are located general post (2) upper end, its characterized in that: annular backup pad (1) is established to the periphery cover of general post (2), backup pad (1) and general post (2) fixed connection, top surface fixed mounting ring gear (4) of backup pad (1), the top of backup pad (1) is equipped with the vertical pivot (5) of several, dysmorphism hole (6) are all seted up to the top surface of pivot (5), the equal fixed mounting gear (7) of lower extreme of pivot (5), gear (7) all mesh with ring gear (4), the bottom surface fixed mounting several rectangular block (8) of rotary platform (3), cylindrical groove (9) are all seted up to the bottom surface of rectangular block (8), the equal fixed mounting bearing (10) of opening part of cylindrical groove (9), the periphery of pivot (5) all with the inner circle fixed connection of the bearing (10) that correspond, the top surface fixed mounting swing pneumatic cylinder (12) of cylindrical groove (9), the upper end of electric push rod (13) is connected to the output shaft fixed connection of swing pneumatic cylinder (12).

2. The rotary stretching stabilizing device of the crane according to claim 1, wherein: the electric push rod is characterized in that a position sensor (11) is fixedly mounted at the bottom of the electric push rod (13), a target object (14) for being identified by the position sensor (11) is fixedly mounted on the top surface of the rotating shaft (5), and the electric push rod further comprises a controller which is in circuit connection with the position sensor (11), the swing hydraulic cylinder (12) and the electric push rod (13).

3. A crane rotary tensioning stabilising arrangement according to claim 1 or claim 2, wherein: the bottom surface of the supporting plate (1) is fixedly provided with a plurality of ribbed plates (15), and one side of each ribbed plate (15) is fixedly connected with the general column (2).

4. The rotary stretching stabilizing device of the crane according to claim 1, wherein: the rotating shaft (5), the inner gear ring (4) and the gear (7) are all made of high-strength structural steel.

5. A crane rotary tensioning stabilising arrangement according to claim 1 or 2 or 4, wherein: the special-shaped hole (6) is a regular polygon.

Images