CN107324253B - Bidirectional pallet fork device - Google Patents
Bidirectional pallet fork device Download PDFInfo
- Publication number
- CN107324253B CN107324253B CN201710637304.2A CN201710637304A CN107324253B CN 107324253 B CN107324253 B CN 107324253B CN 201710637304 A CN201710637304 A CN 201710637304A CN 107324253 B CN107324253 B CN 107324253B
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- China
- Prior art keywords
- fork
- fork body
- guide rail
- body unit
- slide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/142—Movements of forks either individually or relative to each other
- B66F9/143—Movements of forks relative to each other - symmetric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/142—Movements of forks either individually or relative to each other
- B66F9/144—Movements of forks relative to each other - independent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/24—Electrical devices or systems
Abstract
The invention discloses a bidirectional fork device which is used for carrying goods and comprises a driving unit and a fork. The fork includes fork body unit, well fork body unit and last fork body unit down. The lower fork body unit comprises a gear assembly, a lower fork body slide rail, a ball and a ball retainer. The middle fork body unit comprises a middle fork body, a rack and a sliding groove. The upper fork body unit comprises a platform plate for bearing goods and an upper fork body slide rail. The transmission of the rack and the gear assembly is converted into the linear motion of the middle fork body unit in the rack direction, the balls and the ball retainers which enable the middle fork body unit to slide stably are assembled between the sliding groove and the lower fork body sliding rail, and the balls and the ball retainers which enable the upper fork body unit to slide stably are assembled between the sliding groove and the upper fork body sliding rail. The bearing capacity and the long-distance stable transportation are ensured.
Description
Technical Field
The invention relates to the field of carrying machinery, in particular to a bidirectional fork device.
Background
In modern smart warehousing and smart logistics rapid development, a large amount of goods need to be carried and stacked, and especially, a mechanical device needs to be adopted for carrying and stacking a three-dimensional overhead warehouse in a relatively narrow space. The mechanical device can move in a relatively narrow three-dimensional space and repeatedly move according to a certain sequence so as to finish the actions of carrying, stacking and the like of the cargo units. This mechanism is commonly referred to as a stacker. The main functional part of the stacker is a fork device. The actions of grabbing, conveying, placing and the like of the cargo units are completed through the fork device.
The prior pallet fork device has limited carrying capacity in the carrying process of the goods due to the limited structure, can not carry and stack the goods in a long distance, and can only carry the goods in a single direction; the carrying stroke and the carrying range are limited, and the goods carrying with high load can not be carried; the shape and size of the carried goods are different greatly, and the goods are inconvenient to grab and place. Particularly, due to driving and structural factors, the fork device is complex in structure, discontinuous in action during the carrying process, cannot carry and stack the goods stably, is low in carrying efficiency, and even can cause the falling of the carried goods.
Accordingly, there is a need to redesign a bi-directional fork arrangement to address at least one of the above-mentioned problems.
Disclosure of Invention
In view of the above-mentioned problems in the prior art, the present invention provides a bi-directional fork apparatus to solve at least one of the above-mentioned problems.
In order to solve the technical problems, the invention adopts a technical scheme that:
a bi-directional pallet fork arrangement for handling cargo, comprising:
a driving unit including a motor and a driving shaft connected with the motor;
the pallet fork comprises a lower fork body unit, a middle fork body unit and an upper fork body unit;
the lower fork body unit comprises a left wall plate, a right wall plate, a gear assembly, a lower fork body slide rail, a ball and a ball retainer, the gear assembly is installed in a box body space which is vertically and oppositely arranged on the left wall plate and the right wall plate, the driving shaft drives the gear assembly to rotate, and the lower fork body slide rail is respectively fixed on the outer sides of the left wall plate and the right wall plate;
the middle fork body unit comprises a middle fork body, a left guide rail mechanism, a right guide rail mechanism, a rack and a sliding groove, the middle fork body is horizontally arranged in a plate shape and is arranged on the upper sides of the left wall plate and the right wall plate, the left guide rail mechanism and the right guide rail mechanism are symmetrically fixed on the lower side of the middle fork body, the rack is fixed at the symmetrical center of the lower plane of the middle fork body and is meshed with the gear assembly, the sliding groove is arranged on each of the left side and the right side of the left guide rail mechanism, the sliding groove on the inner side of the left guide rail mechanism is matched with a sliding rail of the lower fork body on the outer side of the left wall plate, and the sliding groove on the inner side of the right guide rail mechanism is matched with a sliding rail of the lower fork body on the outer side of the right wall plate;
the upper fork body unit comprises a platform plate, a vertical plate and an upper fork body sliding rail, the platform plate is used for bearing goods and is symmetrically arranged by taking the gear assembly as a symmetrical center, the vertical plate is vertically fixed on the lower side of the platform plate and is symmetrically distributed in a left-right mode, the upper fork body sliding rail is fixed on the inner side of the vertical plate on the left side and is matched with a sliding groove on the outer side of the left guide rail mechanism, the right upper fork body sliding rail is fixed on the inner side of the vertical plate on the right side and is matched with a sliding rail on the outer side of the right guide rail mechanism;
the ball and the ball retainer which enable the middle fork unit to slide stably are assembled between the sliding groove and the lower fork slide rail, and the ball retainer which enable the upper fork unit to slide stably are assembled between the sliding groove and the upper fork slide rail.
In one embodiment, the left guide rail mechanism and the right guide rail mechanism are respectively provided with an H-shaped chute component, the chute component comprises two vertical parts and a transverse part for connecting the two vertical parts, the transverse part of the chute component is respectively fixed in the left guide rail mechanism and the right guide rail mechanism, the vertical parts of the chute component are respectively provided with the chutes, and the chutes are respectively located at two sides of the left guide rail mechanism and the right guide rail mechanism and are opened outwards.
In one embodiment, the cross portion is assembled in the left guide rail structure or the right guide rail structure through bolts.
In one embodiment, the left guide rail structure comprises an upper block and a lower block, and the transverse plate is arranged between the upper block and the lower block.
In one embodiment, the sliding grooves are respectively formed on two sides of the left guide rail mechanism, and the sliding grooves are respectively formed on two sides of the right guide rail mechanism.
In one embodiment, the sliding groove accommodates the upper fork slide rail, and the balls are respectively embedded between the upper side and the lower side of the upper fork slide rail and the sliding groove;
the sliding grooves accommodate the lower fork body sliding rails, and the balls are respectively embedded between the upper side and the lower side of the lower fork body sliding rails and the sliding grooves.
In one embodiment, the distance between the left wall panel and the riser is 2-3 times the distance between the left wall panel and the right wall panel.
In one embodiment, the driving unit further comprises a transmission gear sleeved on the driving shaft, and the transmission gear is meshed with the gear assembly.
In one embodiment, the lower fork body unit is further provided with a synchronous belt and an elastic tensioning device, the elastic tensioning device is respectively installed on the outer sides of the left wall plate and the right wall plate, the middle fork body unit further comprises steering wheels, each elastic tensioning device is fixedly connected with one end of the synchronous belt, and the other end of the synchronous belt is fixed on the platform board after the synchronous belt bypasses the steering wheels.
In one embodiment, the other end of the timing belt is secured to the deck at different locations as needed for the cargo handling stroke.
Compared with the prior art, the invention has the advantages that:
the transmission of the rack and the gear assembly is converted into the linear motion of the middle fork body unit in the rack direction, the balls and the ball retainer which enable the middle fork body unit to slide stably are assembled between the sliding groove and the lower fork body sliding rail, and the balls and the ball retainer which enable the upper fork body unit to slide stably are assembled between the sliding groove and the upper fork body sliding rail. Ensuring the bearing capacity and the long-distance stable transportation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of a bi-directional pallet fork arrangement of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;
FIG. 3 is a schematic view of another embodiment of a bi-directional pallet fork arrangement of the present invention;
FIG. 4 is a schematic view of yet another construction of a bi-directional fork arrangement of the present invention;
FIG. 5 is a schematic view of yet another construction of a bi-directional fork arrangement of the present invention;
FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic cross-sectional view taken along line B-B of FIG. 5;
FIG. 8 is a schematic cross-sectional view taken along line C-C of FIG. 5;
FIG. 9 is a cross-sectional view taken along line D-D of FIG. 5;
FIG. 10 is a cross-sectional view taken along line E-E of FIG. 5;
FIG. 11 is a schematic illustration of the slip and load bearing construction of the bi-directional fork arrangement of the present invention;
FIG. 12 is a schematic view of yet another construction of the slip fit and load bearing bi-directional fork arrangement of the present invention;
FIG. 13 is a schematic view of yet another construction of a bi-directional fork arrangement of the present invention;
FIG. 14 is a schematic cross-sectional view taken along line F-F of FIG. 13;
FIG. 15 is a schematic cross-sectional view taken along line G-G of FIG. 13;
FIG. 16 is a schematic cross-sectional view taken along line H-H of FIG. 13;
FIG. 17 is a schematic cross-sectional view taken along line I-I of FIG. 13;
FIG. 18 is a schematic cross-sectional view taken along line J-J of FIG. 13;
FIG. 19 is an enlarged partial schematic view of the bi-directional fork arrangement of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention discloses a bidirectional fork device which is used for carrying goods. The bidirectional fork device comprises a driving unit and a fork.
The driving unit includes a motor and a driving shaft connected with the motor.
The fork includes fork body unit, well fork body unit and last fork body unit down.
The lower fork body unit comprises a left wallboard, a right wallboard, a gear assembly, a lower fork body sliding rail, a ball and a ball retainer, wherein the gear assembly is installed in a box space formed by the left wallboard and the right wallboard in a vertical and opposite mode, the gear assembly rotates under the driving of the driving shaft, and the lower fork body sliding rail is fixed on the outer sides of the left wallboard and the right wallboard respectively.
Well fork body unit includes well fork body, left guide rail mechanism, right guide rail mechanism, rack and spout, well fork body be the level set up the platelike and set up in the upside of left side wallboard and right wallboard, left side guide rail mechanism and right guide rail mechanism's symmetry are fixed in well fork body downside, the rack is fixed in well fork body lower plane symmetric center and with gear assembly intermeshing, left side guide rail mechanism's the left and right sides all is provided with the spout, right side guide rail mechanism's the left and right sides all is provided with the spout is located left side guide rail mechanism inboard spout with the cooperation of the lower fork body slide rail in the left side wallboard outside is located right side guide rail mechanism inboard spout with the cooperation of the lower fork body slide rail in the right side wallboard outside.
The upper fork body unit comprises a platform plate, a vertical plate and an upper fork body slide rail, wherein the platform plate is used for bearing goods and is symmetrically arranged by taking the gear assembly as a symmetrical center, the vertical plate is vertically fixed at the lower side of the platform plate and is symmetrically distributed in a left-right mode, the upper fork body slide rail is fixed on the inner side of the vertical plate at the left side and is matched with a slide groove at the outer side of the left guide rail mechanism, the right upper fork body slide rail is fixed on the inner side of the vertical plate at the right side and is matched with a slide rail at the outer side of the right guide rail mechanism;
the ball and the ball retainer which enable the middle fork unit to slide stably are assembled between the sliding groove and the lower fork slide rail, and the ball retainer which enable the upper fork unit to slide stably are assembled between the sliding groove and the upper fork slide rail.
Preferably, the left guide rail mechanism and the right guide rail mechanism are respectively provided with an H-shaped chute component, each chute component comprises two vertical parts and a transverse part connected with the two vertical parts, the transverse parts of the chute components are respectively fixed in the left guide rail mechanism and the right guide rail mechanism, the vertical parts of the chute components are respectively provided with the chutes, and the chutes are respectively located on two sides of the left guide rail mechanism and the right guide rail mechanism and are outwards opened.
Preferably, the transverse portion is assembled in the left rail structure or the right rail structure by a bolt.
Preferably, the left guide rail structure comprises an upper block and a lower block, and the transverse plate is erected between the upper block and the lower block.
Preferably, the sliding grooves are respectively formed in two sides of the left guide rail mechanism, and the sliding grooves are respectively formed in two sides of the right guide rail mechanism.
Preferably, the sliding groove accommodates the upper fork slide rail, and the balls are respectively embedded between the upper side and the lower side of the upper fork slide rail and the sliding groove; the sliding grooves accommodate the lower fork body sliding rails, and the balls are respectively embedded between the upper side and the lower side of the lower fork body sliding rails and the sliding grooves.
Preferably, the distance between the left wall plate and the vertical plate is 2-3 times of the distance between the left wall plate and the right wall plate.
Preferably, the driving unit further comprises a transmission gear sleeved on the driving shaft, and the transmission gear is meshed with the gear assembly.
Preferably, the lower fork body unit still is provided with synchronous belt and elastic tension device, elastic tension device install respectively in the outside of left side wallboard and right wallboard, well fork body unit still includes directive wheel, each elastic tension device fixed connection synchronous belt's one end, synchronous belt walks around its other end is fixed in behind the directive wheel the landing slab.
Preferably, the other end of the timing belt is fixed to different positions of the platform plate according to the requirement of cargo handling stroke.
The driving unit takes a motor as a power unit, transmits power to the gear assembly of the lower fork body unit through a driving shaft, and drives the gear of the gear assembly to rotate. In the middle fork body unit, a rack is provided which is engaged with the gear assembly. The rack can convert the rotation action output by the motor into the linear motion of the middle fork body unit in the direction of the rack through the transmission of the gear assembly.
In addition, synchronous belts are installed on two sides of the lower fork body unit. One end of the synchronous belt is fixed on the lower fork body unit, and the other end of the synchronous belt is fixed on the upper fork body unit. When the middle fork body unit moves linearly, the upper fork body unit also keeps synchronous linear motion along with the middle fork body unit, so that the upper fork body unit and the middle fork body unit are kept synchronous and consistent when the bidirectional fork device starts to carry and finishes carrying. The linear motion of the middle fork body unit and the linear motion of the upper fork body unit are realized by matching a lower fork body slide rail, a chute, an upper fork body slide rail, a ball and a ball retainer of the sliding and bearing device.
If the motor of the driving unit part runs in the reverse direction, the middle fork body unit and the upper fork body unit can correspondingly move in the reverse direction, so that goods on the platform plate of the upper fork body unit can be reversely conveyed, and the conveying efficiency is improved.
The gear assembly, the driving shaft, the sliding and bearing devices and the like of the bidirectional carrying device are made of high-strength materials, and can bear the goods carrying work with large mass.
Hereinafter, embodiments of the present invention will be described by way of example with reference to the drawings.
Referring to fig. 1 to 3, a bidirectional fork device with a unidirectional adjustable interval includes a base 11, a sliding unit 12, a fork 13, a driving unit 14, and an adjusting unit 15.
The base 11 is frame-shaped and includes an upper support plate 111, a lower support plate 112, and a side support plate 113. Two upper support plates 111 that lengthways extend are arranged at horizontal intervals, a plurality of side support plates 113 are supported at the lower side of the upper support plate 111, and the lower support plate 112 is used for connecting and fixing the side support plates 113. The slide unit 12 includes a slide rail 121 and a slider 122. The slide rail 121 is installed on the upper support plate 111 along the longitudinal direction, and the slider 122 is installed on the slide rail 121 in a sliding manner and can perform reciprocating linear motion along the extension direction of the slide rail.
The forks 13 include left forks 131 and right forks 132. The left fork 131 is erected on the two upper supporting plates 111 and fixed on the sliding block 122, and the left fork 131 can independently and freely slide along the sliding rail in two directions through the sliding block 122. The right fork 132 is mounted on the two upper support plates 111 and fixed to one side of the upper support plates 111.
The driving unit 14 includes a motor 141, a driving shaft 142, and a support base assembly 143. The motor 141 is assembled with the driving shaft 142, and both ends of the driving shaft 142 are respectively mounted to the lower support plates 113 at both sides through the support seat assemblies 143. The motor 141 drives the driving shaft 142 to rotate, and the driving shaft 142 drives the left fork 131 and the right fork 142 to synchronously move back and forth along the direction perpendicular to the lengthwise extending direction. Be provided with the tooth on the drive shaft 142, left fork 131 and right fork 132 are provided with the gear assembly respectively, and the tooth meshes with the gear assembly mutually, and the gear assembly rotates is driven when motor 141 rotates, and then realizes that left fork and right fork are synchronous to be realized snatching, the transport goods.
The adjustment unit 15 comprises a lead screw 151, a lead screw slide 152, a mount assembly support side 153, a mount assembly fixation side 154 and a lead screw drive motor 155. A fork bottom support block 1311 is installed at the bottom of the left fork 131, and the screw slider 152 is assembled on the screw 151 and fixed to the fork bottom support block 1311. The lead screw 151 is fixed at both ends thereof to the lower support plate 113 through the holder assembly supporting side 153 and the holder assembly fixing side 154, respectively. The end of the lead screw adjacent the support side 153 of the carrier assembly is connected to a lead screw drive motor 155. The lead screw drive motor 155 controls the rotation of the lead screw 151 to adjust the movement of the left fork 131 to achieve the desired spacing between the left fork 131 and the right fork 132.
If the motor 141 of the driving unit 14 is operated in the reverse direction, the left fork 131 and the right fork 132 can be moved in the reverse direction at the same time, so that the goods on the left fork 131 and the right fork 132 can be transported in the reverse direction, thereby improving the transporting efficiency.
Referring to fig. 3, in another embodiment of the present invention, the left fork 131 is fixed on the base 11, and the adjusting unit 15 is connected to the right shelf 132 to adjust the right shelf 132 so as to achieve a required distance between the right shelf 132 and the left shelf 131.
Referring to fig. 4, in another embodiment of the present invention, the left fork 131 and the right fork 132 are slidably connected to the base 11 respectively. The fork device comprises two groups of adjusting units 15, the two groups of adjusting units 15 are arranged in a mirror image mode, one group of adjusting units 15 is connected with the left goods shelf 131 and used for driving the left goods shelf 131 to move, and the other group of adjusting units 15 is connected with the right goods shelf 132 and used for driving the right goods shelf 132 to move.
Referring to fig. 5-11, another bi-directional fork apparatus is disclosed.
The driving unit 14 further comprises a transmission gear 144, the motor 141 drives the driving shaft 142 to rotate, and the driving shaft 142 is provided with driving teeth, and the driving teeth are matched with the transmission gear 144. The drive gear 144 cooperates with the gear assembly of the fork. The motor 141 transmits power to the transmission gear 144 through the driving shaft 142 and continues to the gear assembly, thereby realizing the cargo handling.
The fork comprises a lower fork body unit 2, a middle fork body unit 3 and an upper fork body unit 4.
The lower fork body unit 2 comprises a left wall plate 21, a right wall plate 22, a gear assembly 23, a timing belt 24, an elastic tensioning device 25 and a sliding fit and load bearing assembly 26. The left wall plate 21 and the right wall plate 22 are vertically arranged oppositely to form a compact box body space. The gear assembly 23 is installed in the box space, and is arranged in a left-right asymmetric manner by taking the transmission gear as a center, and can move forwards or backwards according to the requirements of cargo handling and formation. Elastic tensioners 25 are respectively installed at the outer sides of left wall panel 21 and right wall panel 22. Each elastic tensioning device is fixedly connected with a synchronous belt 24 with different lengths. The timing belt 24 is fixed to the upper fork unit 4 through the other end of the middle fork unit 3. The elastic tensioning device 25 and the timing belt 24 ensure that the upper fork body unit 4 and the middle fork body unit 3 are synchronously positioned at the same initial position when the goods begin to be transported and the goods end to be transported. Each of the skid and load bearing assemblies 26 includes a lower fork slide 27, a needle roller 28 and a needle roller cage 29. The lower fork slide rails 27 of the sliding fit and bearing assembly 26 on both sides are fixed on the outer sides of the left wall plate 21 and the right wall plate 22 respectively. This skid and load bearing assembly 26 supports the weight of the entire cargo while ensuring a smooth and steady sliding movement of the mid-span fork unit 3.
The middle fork body unit 3 includes a middle fork body 31, a left guide rail mechanism 32, a right guide rail mechanism 33, a rack 34, a steering wheel 35, and a middle fork body slide rail 36. The middle fork body 31 is in a plate shape and is horizontally arranged, and the middle fork body 31 covers the upper sides of the left wall plate 21 and the right wall plate 22. The left guide rail mechanism 32 and the right guide rail mechanism 33 are in a left-right symmetrical structure and are fixed on the middle fork body 31. The middle fork 31 is provided with a rack 34 at the symmetrical center of the lower plane, which is meshed with the gear assembly 23, and the rack 34 can transmit the power transmitted by the gear assembly 23 to the rack and drive the middle fork unit 3 to move linearly along the direction of the rack 34. The middle fork 31 is fixedly provided with a middle fork slide rail 36 on the outer side surface and the inner side surface of the left guide rail mechanism 32, and the middle fork 31 is fixedly provided with a middle fork slide rail 36 on the outer side surface and the inner side surface of the right guide rail mechanism 33. Wherein the mid-fork slide 36 is also part of the skid and load bearing assembly 26. The middle fork body slide rail 36 on the inner side surface of the left guide rail mechanism 32 is matched with the lower fork body slide rail 27 fixed on the left wall plate 21, and the middle fork body slide rail 36 on the inner side surface of the right guide rail mechanism 33 is matched with the lower fork body slide rail 27 fixed on the right wall plate 22. The roller pin 28 and the roller pin retainer 29 are arranged between the middle fork slide rail 36 and the lower fork slide rail 27, so that the middle fork 31 can move forwards and backwards more stably under high bearing.
The lower fork unit 4 includes a deck plate 41, a riser 42, and an upper fork slide rail 43. The platform plate 41 has a large flat surface for placing the carried goods and is symmetrically disposed with the gear assembly 23 as a center of symmetry. The vertical plates 42 are vertically fixed on the lower surface of the platform plate 41 and are symmetrically distributed and respectively positioned outside the left guide rail mechanism 32 and the right guide rail mechanism 33. The upper fork body slide rails 43 are fixed on the two vertical plates 42 in bilateral symmetry respectively. Wherein the upper fork slide 43 is also part of the skid and load bearing assembly 26. The middle fork slide rail 36 on the outer side of the left guide rail mechanism 32 is matched with the upper fork slide rail 43 fixed on the left vertical plate 42. The middle fork slide rail 36 positioned on the outer side surface of the right guide rail mechanism 33 is matched with an upper fork slide rail 43 fixed on a right vertical plate 42. The roller pins 28 and the roller pin holders 9, which are alternately arranged, are assembled between the upper fork slide rail 43 and the middle fork slide rail 36, so that the upper fork slide rail 43 smoothly slides along the middle fork slide rail 36, and at the same time, the upper fork unit 4 can be supported to move in the rack direction. Meanwhile, the elastic tension device 25 of each lower yoke unit 2 is fixedly connected with a timing belt 24 with adjustable length, the timing belt 24 passes around the steering wheel 35 of the middle yoke unit 3, and the other end of the timing belt 24 is fixed at a predetermined position on the platform plate 41 of the upper yoke unit 4 according to the cargo handling stroke requirement. The elastic tensioning device 25 and the timing belt 24 ensure that the upper fork body unit 4 and the middle fork body unit 3 are in the same starting position when the goods start to be transported and the goods finish to be transported synchronously.
Referring to fig. 12, another slip and load bearing assembly 26' is disclosed. The lower fork slide rail 27 'and the middle fork slide rail 36' of the sliding matching and bearing assembly 26 'and the middle fork slide rail 36' and the upper fork slide rail 43 are opposite V-shaped surfaces, and a roller pin 28 'and a double-row retainer 29' are assembled between the V-shaped surfaces.
Referring to fig. 13-19, another bi-directional fork apparatus is disclosed.
The driving unit 5 further comprises a transmission gear 53, the motor 51 drives the driving shaft 52 to rotate, and the driving shaft 52 is provided with driving teeth which are matched with the transmission gear 53. The drive gear 53 cooperates with the gear assembly of the forks. The motor 51 transmits power to the transmission gear 53 through the driving shaft 52 and continues to transmit the power to the gear assembly, so that the goods are transported.
The pallet fork comprises a lower fork body unit 6, a middle fork body unit 7 and an upper fork body unit 8.
The lower fork body unit 6 comprises a left wall plate 61, a right wall plate 62, a gear assembly 63, a timing belt 64, an elastic tensioning device 65 and a slip fit and load bearing assembly 66. The left wall plate 61 and the right wall plate 62 are vertically arranged opposite to each other and form a compact box space. The gear assembly 63 is installed in the box space, and is in a left-right asymmetric arrangement situation by taking the transmission gear as a center, and can move forwards or backwards according to the requirements of cargo handling and formation. Elastic tensioning devices 65 are mounted on the outer sides of the left wall plate 61 and the right wall plate 62, respectively. Each elastic tensioning device is fixedly connected with a right synchronous belt 64 with different lengths. The timing belt 64 is fixed to the upper fork unit 8 through the other end of the middle fork unit 7. The elastic tensioning device 65 and the timing belt 64 ensure that the upper fork body unit 8 and the middle fork body unit 7 are synchronously positioned at the same initial position when the goods begin to be transported and the goods end to be transported. Each skid and load bearing assembly 66 includes a lower fork slide 67, balls 68, and a ball cage 69. The lower fork slide rails 67 of the sliding assembly and bearing assembly 66 on both sides are fixed on the outer sides of the left wall plate 61 and the right wall plate 62 respectively. This skid-steer and load-bearing assembly 66 supports the weight of the entire cargo while ensuring a smooth and steady sliding movement of the mid-span fork unit 7.
The middle fork unit 7 includes a middle fork 71, a left rail mechanism 72, a right rail mechanism 73, a rack 74, a steering wheel 75, and a slide groove 76. The middle fork body 71 is plate-shaped and horizontally arranged, and the middle fork body 71 covers the upper sides of the left wall plate 61 and the right wall plate 62. The left guide rail mechanism 72 and the right guide rail mechanism 73 are in a left-right symmetrical structure and are fixed on the middle fork body 71. A rack 74 meshed with the gear assembly 63 is installed at the symmetrical center of the lower plane of the middle fork body 71, so that the power transmitted by the gear assembly 63 can be transmitted to the rack 74 and the middle fork body unit 7 can be driven to move linearly along the direction of the rack 74. The middle fork body unit 7 is assembled with an H-shaped chute component in the left guide rail mechanism 72, the transverse part of the chute component is fixed in the left guide rail mechanism 72, the vertical parts at both sides are respectively provided with a chute 76, and the chutes 76 are located at both sides of the left guide rail mechanism 72 and open outwards. Symmetrically, the middle fork unit 7 is assembled with an H-shaped sliding groove component in the right rail mechanism 73, a transverse portion of the sliding groove component is fixed in the right rail mechanism 73, sliding grooves 76 are respectively formed in vertical portions on two sides, and the sliding grooves 76 are located on two sides of the right rail mechanism 73 and are opened outwards. The runner 76 is also part of the skid and load bearing assembly 66. The slide groove 76 on the inner side of the left guide rail mechanism 72 is matched with the lower fork slide rail 67 fixed on the left wall board 61. The slide groove 76 on the inner side surface of the right guide rail mechanism 73 is matched with a lower fork slide rail fixed on the right wall plate 61. The balls 68 and the ball retainer 69 are arranged between the sliding grooves 76 and the lower fork slide rails 67, so that the middle fork body 61 can move forward and backward more stably under high load.
The lower fork unit 8 includes a deck plate 81, a riser 82, and an upper fork slide 83. The platform plate 81 has a large flat surface for preventing the goods being carried and is symmetrically disposed with the gear assembly 63 as a center of symmetry. The vertical plates 82 are vertically fixed on the lower surface of the platform plate 81 and are symmetrically distributed and respectively positioned outside the left guide rail mechanism 72 and the right guide rail mechanism 73. The upper fork slide rails 83 are fixed on the two vertical plates 82 in bilateral symmetry. Wherein the upper fork slide 83 is also part of the skid and load bearing assembly 66. The slide groove 76 on the outer side of the left rail mechanism 72 is engaged with an upper fork slide 83 fixed to a left vertical plate 82. The slide groove 76 on the outer side of the right rail mechanism 73 is engaged with an upper fork slide 83 fixed to a right vertical plate 82. The balls 68 and the ball retainers 69 are fitted between the upper fork slide rail 83 and the slide groove 76, so that the upper fork slide rail 83 slides smoothly along the slide groove 76 while supporting the upper fork unit 8 to move in the rack direction. Meanwhile, the elastic tensioner 65 of each lower yoke unit 6 is fixedly connected to a timing belt 64 with an adjustable length, the timing belt 64 passes around the steering wheel 75 of the middle yoke unit 7, and the other end of the timing belt 74 is fixed to a predetermined position on the deck 81 of the upper yoke unit 8 according to the cargo handling stroke. The elastic tensioning device 65 and the timing belt 6.4 ensure that the upper fork unit 8 and the middle fork unit 7 are synchronized in the same starting position when the goods start to be transported and when the goods finish to be transported.
All gears, shafts, sliding fit, bearing assemblies and fork parts of the fork body device are made of high-strength materials, surface hardening treatment is performed, and stable and smooth carrying and transportation of high-strength and high-load goods and high-precision grabbing and placing of the goods in various packaging modes can be achieved through precise automatic control of a motor.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.
Claims (10)
1. A bi-directional pallet fork apparatus for handling cargo, comprising:
a driving unit including a motor and a driving shaft connected with the motor;
the pallet fork comprises a lower fork body unit, a middle fork body unit and an upper fork body unit;
the lower fork body unit comprises a left wall plate, a right wall plate, a gear assembly, a lower fork body slide rail, a ball and a ball retainer, the gear assembly is installed in a box body space which is vertically and oppositely arranged on the left wall plate and the right wall plate, the driving shaft drives the gear assembly to rotate, and the lower fork body slide rail is respectively fixed on the outer sides of the left wall plate and the right wall plate;
the middle fork body unit comprises a middle fork body, a left guide rail mechanism, a right guide rail mechanism, a rack and a sliding groove, the middle fork body is horizontally arranged in a plate shape and is arranged on the upper sides of the left wall plate and the right wall plate, the left guide rail mechanism and the right guide rail mechanism are symmetrically fixed on the lower side of the middle fork body, the rack is fixed on the lower plane symmetry center of the middle fork body and is meshed with the gear assembly, the sliding groove is arranged on each of the left side and the right side of the left guide rail mechanism, the sliding groove on the inner side of the left guide rail mechanism is matched with a lower fork body sliding rail on the outer side of the left wall plate, and the sliding groove on the inner side of the right guide rail mechanism is matched with a lower fork body sliding rail on the outer side of the right wall plate;
the upper fork body unit comprises a platform plate, a vertical plate and an upper fork body sliding rail, wherein the platform plate is used for bearing goods and is symmetrically arranged by taking the gear assembly as a symmetrical center, the vertical plate is vertically fixed on the lower side of the platform plate and is symmetrically distributed in a left-right mode, the upper fork body sliding rail is fixed on the inner side of the vertical plate on the left side and is matched with a sliding groove on the outer side of the left guide rail mechanism, the upper fork body sliding rail is fixed on the inner side of the vertical plate on the right side and is matched with a sliding rail on the outer side of the right guide rail mechanism;
the ball and the ball retainer which enable the middle fork unit to slide stably are assembled between the sliding groove and the lower fork slide rail, and the ball retainer which enable the upper fork unit to slide stably are assembled between the sliding groove and the upper fork slide rail.
2. The bidirectional pallet fork device according to claim 1, wherein the left and right rail mechanisms are respectively provided with an H-shaped chute member, the chute member comprises two vertical portions and a transverse portion connecting the two vertical portions, the transverse portion of the chute member is respectively fixed in the left and right rail mechanisms, the vertical portions of the chute member are respectively provided with the chutes, and the chutes are respectively located at two sides of the left and right rail mechanisms and are opened outward.
3. The bi-directional fork arrangement of claim 2, wherein the cross portion is assembled within the left or right track mechanism by bolts.
4. The bi-directional fork device of claim 2, wherein the left track mechanism comprises an upper block and a lower block, the cross portion being spanned between the upper block and the lower block.
5. The bi-directional fork device of claim 1, wherein the slide slots are respectively defined on both sides of the left track mechanism, and the slide slots are respectively defined on both sides of the right track mechanism.
6. The bi-directional pallet fork arrangement of claim 1 wherein said runner receives said upper fork slide, said balls being embedded between said runner and upper and lower sides of said upper fork slide, respectively;
the sliding grooves accommodate the lower fork body sliding rails, and the balls are respectively embedded between the upper side and the lower side of the lower fork body sliding rails and the sliding grooves.
7. The bi-directional fork device of claim 1, wherein the distance between the left wall panel and the riser is 2-3 times the distance between the left wall panel and the right wall panel.
8. The bi-directional pallet fork arrangement of claim 1 wherein said drive unit further comprises a drive gear sleeved on said drive shaft, said drive gear being in meshing engagement with said gear assembly.
9. The bi-directional fork device of any one of claims 1 to 8, wherein the lower fork body unit is further provided with a timing belt and an elastic tensioning device, the elastic tensioning device is respectively installed at the outer sides of the left wall plate and the right wall plate, the middle fork body unit further comprises steering wheels, each elastic tensioning device is fixedly connected with one end of the timing belt, and the timing belt is fixed at the platform plate by the other end of the timing belt after passing around the steering wheels.
10. The bi-directional fork apparatus of claim 9, wherein the other end of the timing belt is secured to the platform at different locations as needed to carry the load path.
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|---|---|---|---|
| CN201710637304.2A CN107324253B (en) | 2017-07-31 | 2017-07-31 | Bidirectional pallet fork device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637304.2A CN107324253B (en) | 2017-07-31 | 2017-07-31 | Bidirectional pallet fork device |
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| CN107324253A CN107324253A (en) | 2017-11-07 |
| CN107324253B true CN107324253B (en) | 2022-11-22 |
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| CN201710637304.2A Active CN107324253B (en) | 2017-07-31 | 2017-07-31 | Bidirectional pallet fork device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109592275A (en) * | 2018-12-03 | 2019-04-09 | 重庆社平智能装备技术有限公司 | Widen stable piler |
| CN109607078A (en) * | 2018-12-27 | 2019-04-12 | 四川普什宁江机床有限公司 | For the floor truck axle construction in flexible manufacturing unit |
| CN114313730B (en) * | 2021-12-29 | 2023-08-25 | 江苏赛维亚智能仓储设备有限公司 | Novel stacking type goods shelf |
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| DE2848407A1 (en) * | 1978-11-08 | 1980-05-14 | Jun Josef Ott | Pallet handling fork lift truck - has double armed adjusting lever sliding prongs along horizontal beams via links |
| EP0692449A1 (en) * | 1994-07-13 | 1996-01-17 | Cleco Limited | Rotating fork unit for pallet handling |
| CN202766232U (en) * | 2012-09-05 | 2013-03-06 | 苏州富士德物流设备有限公司 | Double-extending fork |
| CN205133070U (en) * | 2015-09-23 | 2016-04-06 | 苏州富士德物流设备有限公司 | Two fork of stretching |
| CN106044647A (en) * | 2016-07-26 | 2016-10-26 | 安徽安鑫货叉有限公司 | Double-fork-lever bracket type space-adjustable fork |
| CN207276148U (en) * | 2017-07-31 | 2018-04-27 | 太仓长臂猿机器人科技有限公司 | A kind of bidirectional fork device |
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- 2017-07-31 CN CN201710637304.2A patent/CN107324253B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2848407A1 (en) * | 1978-11-08 | 1980-05-14 | Jun Josef Ott | Pallet handling fork lift truck - has double armed adjusting lever sliding prongs along horizontal beams via links |
| EP0692449A1 (en) * | 1994-07-13 | 1996-01-17 | Cleco Limited | Rotating fork unit for pallet handling |
| CN202766232U (en) * | 2012-09-05 | 2013-03-06 | 苏州富士德物流设备有限公司 | Double-extending fork |
| CN205133070U (en) * | 2015-09-23 | 2016-04-06 | 苏州富士德物流设备有限公司 | Two fork of stretching |
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| CN107324253A (en) | 2017-11-07 |
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