Rotary rail forkliftTechnical Field
The invention relates to lifting equipment, in particular to a rotary rail forklift.
Background
The track forklift is hoisting equipment, and the running functions of the track forklift in the current market are only forward and backward, so that the track forklift lacks flexibility and is limited by working sites.
The Chinese patent with the bulletin number of CN208182557U discloses a novel electric rotary forklift, which comprises a travelling system, a supporting system and a forklift body, wherein the supporting system is arranged at the top of the travelling system, the supporting system is arranged on the forklift body, the forklift body is provided with a rotary system, the center position of the forklift body is provided with a slewing bearing, one side of the rotary system is provided with a lifting system, and the travelling system, the rotary system and the lifting system are electrically connected with a remote control system. However, the patent only has a single-layer fork plate, only can be used for light-load goods, and the lifting system of the patent is made of three oil cylinders, so that the lifting distance of the lifting system cannot be accurately controlled.
Disclosure of Invention
The invention provides a rotary track forklift for overcoming the defects of the prior art.
The technical scheme adopted for overcoming the technical problems is as follows:
a rotary track forklift, comprising at least:
A fork truck frame, a fork truck frame and a fork truck frame, the forklift frame comprises a supporting frame, a forklift frame and at least one layer of forklift plate fixedly connected to the forklift frame;
the lifting mechanism is used for driving the fork frame to move up and down;
the travelling mechanism comprises a travelling trolley, a travelling servo speed reducing motor and travelling wheels which are arranged on the travelling trolley, and
The rotating mechanism comprises a rotating trolley and a rotating servo speed reducing motor, and the rotating trolley is arranged above the walking trolley and can rotate relative to the walking trolley under the drive of the rotating servo speed reducing motor;
The lower end of the supporting frame is fixed on the rotary trolley, the upper end of the lifting mechanism is fixedly connected with the forklift frame, and the lower end of the lifting mechanism is fixedly connected with the rotary trolley.
Further, the rotary trolley comprises a rotary trolley horizontal portion and a rotary trolley vertical portion, wherein the rotary trolley vertical portion is fixedly connected to one end, close to the fork plate, of the rotary trolley horizontal portion.
Further, elevating system includes electric jar, electric jar upper mounting seat and electric jar lower mount pad, the upper end of electric jar is through electric jar upper mounting seat and fork truck frame fixed connection, the lower extreme is through electric jar lower mount pad and rotatory dolly vertical part fixed connection.
Further, the rotating mechanism further comprises a transmission mechanism, the transmission mechanism comprises a gear, an inner disc, a slewing bearing and an outer disc, the slewing bearing comprises an inner ring, an outer ring and rolling bodies arranged between the inner ring and the outer ring, the inner ring is fixedly connected with the upper surface of the travelling trolley through the inner disc, the outer ring is fixedly connected with the lower surface of the horizontal part of the travelling trolley through the outer disc, and the gear is fixed on an output shaft of the rotary servo speed reducing motor and meshed with the outer ring.
Further, still include direction stop gear, direction stop gear includes two at least pairs of fork truck bearings and two at least pairs of bolt bearing, fork truck bearing sets up between fork truck frame and the vertical part of rotary trolley, the axial of fork truck bearing is parallel with ground and with the direction looks perpendicular of fork board, bolt bearing is fixed in on the channel-section steel of fork truck frame, the axial of bolt bearing is parallel with ground and with the direction of fork board.
Further, the two sides of the walking trolley are symmetrically provided with inverted U-shaped frames, the walking wheels comprise a pair of driving wheels and at least a pair of driven wheels, the driving wheels are connected with an output shaft of a walking servo speed reduction motor through a chain coupling, and the driving wheels and the driven wheels are arranged in the inverted U-shaped frames.
Further, a plurality of balancing weights are arranged on the horizontal part of the rotary trolley and are placed at one end far away from the fork plate.
Further, the fork truck frame still includes auxiliary frame, auxiliary frame fixed connection is in the lower part of fork truck frame and be located the one side opposite to the fork board of installation.
Further, the fork plate is detachably and fixedly connected to the fork frame.
Further, the fork plate is multi-tooth.
The beneficial effects of the invention are as follows:
1. Besides the forward and backward functions of the common rail forklift, the rotary rail forklift can rotate 360 degrees, so that lifting operation in all directions can be completed through one machine, the flexibility is high, the problems of difficult process arrangement and large occupied area of a factory building are solved, the labor degree is reduced, and the working efficiency is greatly improved.
2. The walking servo speed reducing motor, the rotating servo speed reducing motor and the electric cylinder are all controlled by servo, so that the forward and backward walking distance is accurately controlled, the rotation angle is accurately controlled, and the up-down lifting distance is also accurately controllable.
3. The rotary track forklift disclosed by the invention can be used for heavy load, can lift light to tens of tons of heavy goods, and is wide in application range.
Drawings
Fig. 1 is a schematic perspective view of a rotary rail forklift according to an embodiment of the present invention.
Fig. 2 is a schematic front view of a rotary rail forklift according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of the portion a in fig. 2.
Fig. 4 is a schematic diagram of a partial structure of a left view direction of a rotary rail forklift according to an embodiment of the present invention.
Fig. 5 is a schematic bottom view of a rotary rail forklift according to an embodiment of the present invention.
Fig. 6 is an enlarged schematic view of the guiding and limiting mechanism in fig. 5.
In the figure, 1, a forklift frame, 11, a supporting frame, 12, a forklift frame, 121, channel steel, 13, a fork plate, 14, an auxiliary frame, 2, a lifting mechanism, 21, an electric cylinder, 22, an electric cylinder upper mounting seat, 23, an electric cylinder lower mounting seat, 24, a fish eye bearing, 25, a pin roll, 3, a travelling mechanism, 31, a travelling trolley, 311, an inverted U-shaped frame, 32, a travelling servo gear motor, 33, a driving wheel, 34, a driven wheel, 35, a chain coupling, 4, a rotating mechanism, 41, a rotating trolley, 411, a rotating trolley horizontal part, 412, a rotating trolley vertical part, 42, a rotating servo gear motor, 43, a gear, 44, an inner disc, 45, a slewing bearing, 451, an inner ring, 452, an outer ring, 453, a rolling body, 46, an outer disc, 5, a guide limiting mechanism, 51, a forklift bearing, 52, a bolt bearing, 6 and a balancing weight.
Detailed Description
The invention will now be described in further detail with reference to the drawings and the specific examples, which are given by way of illustration only and are not intended to limit the scope of the invention, in order to facilitate a better understanding of the invention to those skilled in the art.
As shown in fig. 1, the rotary rail forklift according to the present embodiment at least includes a forklift frame 1, a lifting mechanism 2, a traveling mechanism 3, and a rotating mechanism 4.
In this embodiment, as shown in fig. 1 and 2, the forklift frame 1 includes a supporting frame 11, a forklift frame 12, and at least one layer of fork plates 13 fixedly connected to the forklift frame, preferably, the fork plates 13 are detachably and fixedly connected to the forklift frame 12, specifically, the fork plates 13 are connected to the forklift frame 12 through bolts, the fork plates 13 can be increased or decreased according to the load condition, in addition, the fork plates can be of a single-tooth type or a multi-tooth type according to actual needs, and in this embodiment, the fork plates 13 are preferably of a multi-tooth type.
In this embodiment, the lifting mechanism 2 is configured to drive the fork frame 12 to move up and down, so that the fork plate 13 drives the goods on the fork plate to move up and down, and the lifting mechanism 2 may be in an electric cylinder driving mode or an oil cylinder driving mode, where an electric cylinder driving mode is preferred in this embodiment. Specifically, as shown in fig. 4, the lifting mechanism 2 comprises an electric cylinder 21, an electric cylinder upper mounting seat 22 and an electric cylinder lower mounting seat 23, wherein the upper end of the electric cylinder 21 is fixedly connected with the forklift frame 12 through the electric cylinder upper mounting seat 22, the lower end of the electric cylinder 21 is fixedly connected with a rotating trolley vertical part 412 through the electric cylinder lower mounting seat 23, further, a fisheye bearing 24 is arranged at the upper end of the electric cylinder 21, and the fisheye bearing 24 is connected with the electric cylinder upper mounting seat 22 through a pin shaft 25. In the embodiment, the electric cylinder is used as the driving of the lifting mechanism, and the electric cylinder is a modularized product which integrates the servo motor and the screw rod, so that the high-precision control of the moving distance can be realized.
In this embodiment, as shown in fig. 2 and 5, the travelling mechanism 3 includes a travelling carriage 31, a travelling servo speed-reducing motor 32 and travelling wheels, which are disposed on the travelling carriage, preferably, the travelling servo speed-reducing motor 32 is disposed in the middle of the travelling carriage 31, further, inverted U-shaped frames 311 are symmetrically disposed on two sides of the travelling carriage 31, the travelling wheels include a pair of driving wheels 33 and at least one pair of driven wheels 34, in this embodiment, the driven wheels 34 are preferably disposed in two pairs, one pair is disposed in front of the driving wheels 33, the other pair is disposed behind the driving wheels 33, the driving wheels 33 are connected with an output shaft of the travelling servo speed-reducing motor 32 through a chain coupling 35, the driving wheels 33 and the driven wheels 34 are both disposed in the inverted U-shaped frames 311 and extend from the lower surface of the inverted U-shaped frames 311, the travelling servo speed-reducing motor 32 rotates, so that the chain coupling 35 drives the driving wheels 33 to rotate, and one end of each driven wheel 34 is limited, and the driven wheels 34 are driven by the driving wheels 33.
In this embodiment, as shown in fig. 2 and 4, the rotating mechanism 4 comprises a rotating trolley 41 and a rotating servo gear motor 42, the rotating trolley 41 is arranged above the traveling trolley 31 and can rotate relative to the traveling trolley 31 under the drive of the rotating servo gear motor 42, specifically, the rotating trolley 41 comprises a rotating trolley horizontal part 411 and a rotating trolley vertical part 412, wherein the rotating trolley vertical part 412 is fixedly connected to one end, close to the fork plate 13, of the rotating trolley horizontal part 411, the lower end of the supporting frame 11 is fixed on the rotating trolley horizontal part 411, the rotating mechanism 4 further comprises a transmission mechanism, as shown in fig. 3, comprising a gear 43, an inner disc 44, a slewing bearing 45 and an outer disc 46, the slewing bearing 45 comprises an inner ring 451, an outer ring 452 and a rolling body 453 arranged between the inner ring and the outer ring, the inner ring 451 is fixedly connected with the upper surface of the traveling trolley 31 through the inner disc 44, the outer ring 452 is fixedly connected with the lower surface of the rotating trolley horizontal part 411 through the outer disc 46, the gear 43 is fixedly connected with the output shaft 42 and is meshed with the outer ring 43. The rotating mechanism 4 enables the rotating trolley 41 to drive the forklift frame 1 to rotate within an angle range of 360 degrees, and the rotating trolley can rotate clockwise and anticlockwise.
As a preferred embodiment, the rotary track forklift further includes a guiding and limiting mechanism 5, as shown in fig. 5 and 6, the guiding and limiting mechanism includes at least two pairs of forklift bearings 51 and at least two pairs of bolt bearings 52, in this embodiment, preferably, the forklift bearings 51 are five pairs, the bolt bearings 52 are three pairs, the forklift bearings 51 are disposed between the forklift frame 12 and the vertical portion 412 of the rotary trolley, the axial direction of the forklift bearings 51 is parallel to the ground and perpendicular to the direction of the fork plate 13, the forklift bearings 51 are used for guiding the forklift frame 12 up and down and have a certain bearing capacity, the bolt bearings 52 are fixed on the channel 121 of the forklift frame 12 and are located in the groove of the channel 121, the axial direction of the bolt bearings 52 is parallel to the ground and parallel to the direction of the fork plate 13, and the bolt bearings 52 are used for limiting left and right.
Further, as shown in fig. 1 and 2, the horizontal portion 411 of the rotating trolley is provided with a plurality of balancing weights 6, and the balancing weights are placed at one end far away from the fork plate 13, and the number of the balancing weights 6 can be selected according to actual needs.
In order to enhance the rigidity of the fork frame, as shown in fig. 1 and 2, the fork truck frame 1 further includes an auxiliary frame 14, and the auxiliary frame 14 is a rectangular frame fixedly connected to the lower portion of the fork truck frame 12 and located on the opposite side to the mounting fork plate 13.
The working principle of the rotary track forklift is as follows:
In use, the rotary rail forklift is placed on a rail in a factory building, i.e. the driving wheel 33 and the driven wheel 34 are placed on a rail matching the rail forklift. When the track forklift needs to advance or retreat, the driving wheel 33 is driven to rotate by the walking servo speed reducing motor 32 so as to drive the driven wheel 34 to rotate, when the track forklift needs to rotate, the rotating trolley 41 is driven to rotate by the rotating servo speed reducing motor 42 so as to drive the rotating trolley 41 to rotate, and further the forklift frame 1 is driven to rotate integrally, so that goods on the fork plate 13 are transferred to a target position, and when the track forklift needs to ascend or descend, the forklift frame 12 is driven to ascend or descend by the electric cylinder 21 so as to drive the goods on the fork plate to move up and down by the fork plate 13.
The rotary track forklift provided by the embodiment has the forward and backward functions of an ordinary track forklift, and can rotate 360 degrees, so that lifting operations in all directions can be completed through one machine, and the problems of difficult process arrangement and large occupied area of a factory building are solved. In addition, in this embodiment, the walking servo speed reducing motor 32, the rotating servo speed reducing motor 42 and the electric cylinder 21 all adopt servo electric control, so that the forward and backward walking distance is accurately controlled, the rotation angle is accurately controlled, and the up-down lifting distance is also accurately controllable.
The foregoing has described only the basic principles and preferred embodiments of the present invention, and many variations and modifications will be apparent to those skilled in the art in light of the above description, which variations and modifications are intended to be included within the scope of the present invention.