Device and method for keeping fork level on rotary conveyor

Abstract

The present invention discloses a device and method for keeping a fork level on a rotary conveyor. The device includes a main track, a balancing track and a fork mechanism. The fork mechanism includes a fork, a fork shaft, a trolley assembly and a balancing assembly. A fork is provided at one end of the fork shaft, and the fork shaft is arranged in the trolley assembly. The trolley assembly is installed on the main track and the trolley assembly drives the fork to move along the main track. The balancing assembly includes a mounting plate and a balancing wheel. A mounting plate is provided at the other end of the fork shaft, and a balancing wheel is provided on the other side of the mounting plate away from the trolley assembly. The balancing wheel is installed on the balancing track and the balancing wheel moves along the balancing track. The rotation centers of the balancing wheel and the fork shaft are not coaxial. The present invention has a simple structure, adopts a balancing wheel and a balancing track to achieve the purpose of keeping the fork shaft level during the rotary motion, has good balancing performance, is simple to install and adjust, solves the problem of poor rotation positioning of traditional forks, significantly improves the rotation rigidity of the fork, and has high reliability.

Description

Technical Field

[0001] The invention relates to the technical field of rotary conveyors, and in particular to a device and method for keeping a cargo fork level on a rotary conveyor. Background Art

[0002] In the field of material box conveyors, rotary continuous vertical conveyors are mostly used for large-volume vertical material box handling. How to ensure that the fork carrying the material box remains horizontal during the rotation process is the key technology of this type of equipment. The existing solutions for keeping the fork horizontal in rotary reciprocating vertical conveyors include vertical link structure and four-wheel positioning structure. The vertical link structure uses a set of balance chains that are parallel to the main drive chain track but shifted up and down, and keeps the fork shaft horizontal through a retractable set of link structures, thereby ensuring the fork is horizontal. However, the vertical link structure has high requirements for the synchronization of the main sprocket and the balance sprocket, and has high requirements for manufacturing precision. In addition, there is a gap in the positioning of the fork shaft, resulting in poor rotation rigidity of the fork. Once the tooth jump phenomenon occurs, the fork cannot remain horizontal, and adjustment is troublesome. In addition, the four-wheel positioning structure has four positioning wheels installed at the tail of the fork shaft. Each positioning wheel is not in the same plane. When turning up and down, the position of three of the wheels is limited to achieve the purpose of leveling the forks. However, there are more balancing wheels in the four-wheel positioning structure, and more balancing tracks at the upper and lower turning places, which has higher requirements on the shape and position of the balancing tracks. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, an object of the present invention is to provide a device for keeping the fork level on a rotary conveyor, comprising a main track, a balancing track and a fork mechanism, the fork mechanism comprising a fork, a fork shaft, a trolley assembly and a balancing assembly, a fork is provided at one end of the fork shaft, the fork shaft is arranged in the trolley assembly, the trolley assembly is installed on the main track and the trolley assembly drives the fork to move along the main track; the balancing assembly comprises a mounting plate and a balancing wheel, a mounting plate is provided at the other end of the fork shaft, a balancing wheel is provided on the other side of the mounting plate away from the trolley assembly, the balancing wheel is installed on the balancing track and the balancing wheel moves along the balancing track, and the rotation centers of the balancing wheel and the fork shaft are not coaxial.

[0004] With the above technical solution, there are two balance wheels, which are symmetrically arranged on the mounting plate.

[0005] According to the above technical solution, the balancing track comprises an upper balancing track, a vertical balancing track and a lower balancing track, and the upper balancing track, the vertical balancing track and the lower balancing track are connected end to end to form a balancing track.

[0006] By adopting the above technical solution, two track grooves are provided on the upper balance track and the lower balance track, and the two balance wheels move along the two track grooves in a one-to-one correspondence.

[0007] With the above technical solution, when the two balancing wheels pass through the upper balancing track or the lower balancing track, the two track grooves simultaneously perform double positioning on the two balancing wheels, and the two track grooves are used to limit the swing of the two balancing wheels around the fork shaft.

[0008] With the above technical solution, two track grooves are cross-set for a section.

[0009] With the above technical solution, the main track comprises an upper circular arc track, a vertical track and a lower circular arc track, and the upper circular arc track, the vertical track and the lower circular arc track are connected end to end to assemble into the main track.

[0010] Another object of the present invention is to provide a method for a rotary conveyor to keep a fork level, comprising:

[0011] The fork is installed on the trolley assembly through the fork shaft. The trolley assembly is installed on the main track and can move along the main track. A balancing wheel is installed on the end of the fork shaft away from the fork. The balancing wheel is installed on the balancing track and moves along the balancing track. The rotation center of the balancing wheel is not coaxial with that of the fork shaft. When the trolley assembly moves along the main track, the balancing track limits the balancing wheel from swinging around the fork shaft to keep the fork shaft and the fork installed on the fork shaft level.

[0012] By adopting the above technical solution, two track grooves are provided on the upper balance track and the lower balance track included in the balance track. When the two balance wheels pass through the upper balance track or the lower balance track, the two balance wheels are doubly positioned through the two track grooves to limit the rotation of the fork shaft.

[0013] With the above technical solution, when the two balancing wheels pass through the upper balancing track or the lower balancing track, the tangential speed of the rotational motion of the fork shaft at the balancing wheel is the same as the guide direction of the track groove, and the two track grooves simultaneously perform double positioning on the two balancing wheels, and the two balancing wheels are restricted from swinging around the fork shaft by the two track grooves.

[0014] The beneficial effects of the present invention are as follows: the present invention has a simple structure, adopts a balancing wheel and a balancing track to achieve the purpose of keeping the fork shaft level during the rotary motion, has good balancing performance, is simple to install and adjust, solves the problem of poor rotation positioning of traditional forks, significantly improves the rotation rigidity of the fork, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A above.

[0017] Figure 3 It is a structural schematic diagram of the fork mechanism of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the balance track of the present invention.

[0019] Explanation of the numbers in the figure: 11, upper arc track; 12, vertical track; 13, lower arc track; 21, upper balance track; 22, vertical balance track; 23, lower balance track; 24, track groove; 31, fork; 32, fork shaft; 33, trolley assembly; 341, mounting plate; 342, balance wheel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1

[0024] Reference Figure 1 and Figure 2As shown, Embodiment 1 of the present invention provides a device for keeping the fork level on a rotary conveyor, comprising a main track, a balancing track and a fork mechanism, wherein the fork mechanism comprises a fork 31, a fork shaft 32, a trolley assembly 33 and a balancing assembly, wherein one end of the fork shaft 32 is provided with a fork 31, the fork shaft 32 is arranged in the trolley assembly 33, the trolley assembly 33 is mounted on the main track and the trolley assembly 33 drives the fork 31 to move along the main track; the balancing assembly comprises a mounting plate 341 and a balancing wheel 342, wherein the other end of the fork shaft 32 is provided with a mounting plate 341, and the other side of the mounting plate 341 away from the trolley assembly 33 is provided with a balancing wheel 342, the balancing wheel 342 is mounted on the balancing track and the balancing wheel 342 moves along the balancing track, and the rotation centers of the balancing wheel 342 and the fork shaft 32 are not coaxial. When the trolley assembly 33 moves along the main track, the balancing track restricts the balancing wheel 342 from swinging around the fork shaft 32, so that the fork shaft 32 and the fork 31 mounted on the fork shaft 32 remain level.

[0025] The balance track is arranged on the other side of the main track relative to the fork 31, and the balance track includes an upper balance track 21, a vertical balance track 22 and a lower balance track 23, which are connected end to end to form a balance track, and two track grooves 24 are arranged on the upper balance track 21 and the lower balance track 23, and the two track grooves 24 are arranged crosswise. Correspondingly, there are two balance wheels 342, which are symmetrically arranged on the mounting plate 341, and the two balance wheels 342 move along the two track grooves 24 one by one.

[0026] When the two balancing wheels 342 pass through the upper balancing track 21 or the lower balancing track 23, the two track grooves 24 simultaneously perform dual positioning on the two balancing wheels 342, and the two balancing wheels 342 are restricted from swinging around the fork shaft 31 through the two track grooves 24. For example, when the two balancing wheels 342 pass through the upper balancing track 21, the tangential speed of the fork shaft 32 rotating at the balancing wheel 342 is the same as the guide direction of the track groove 24, and the two track grooves 24 simultaneously perform dual positioning on the two balancing wheels 342, and the two balancing wheels 342 are restricted from swinging around the fork shaft 32 through the two track grooves 24, thereby keeping the fork shaft 32 and the fork 31 mounted on the fork shaft 32 horizontal.

[0027] In addition, the main track includes an upper arc track 11, a vertical track 12 and a lower arc track 13, which are connected end to end to form the main track, and the trolley assembly 33 drives the fork 31 to move along the main track to realize the rotary motion of the fork 31.

[0028] Example 2

[0029] Embodiment 2 of the present invention provides a method for a rotary conveyor to keep a fork 31 horizontal, comprising:

[0030] The fork 31 is installed on the trolley assembly 33 through the fork shaft 32. The trolley assembly 33 is installed on the main track and can move along the track on the main track. A balancing wheel 342 is installed at the end of the fork shaft 32 away from the fork 31. The balancing wheel 342 is installed on the balancing track and moves along the balancing track. The balancing wheel 342 is not coaxial with the rotation center of the fork shaft 32. When the trolley assembly 33 moves along the main track, the balancing track limits the balancing wheel 342 from swinging around the fork shaft 32, so that the fork shaft 32 and the fork 31 installed on the fork shaft 32 remain horizontal.

[0031] Specifically, the upper balancing track 21 and the lower balancing track 23 included in the balancing track are both provided with two track grooves 24. When the two balancing wheels 342 pass through the upper balancing track 21 or the lower balancing track 23, the two balancing wheels 342 are double-positioned through the two track grooves 24 to limit the rotation of the fork shaft 32. For example, when the two balancing wheels 342 pass through the upper balancing track 21, the tangential speed of the fork shaft 32 rotating at the balancing wheel 342 is the same as the guide direction of the track groove 24. The two track grooves 24 simultaneously double-position the two balancing wheels 342, and the two balancing wheels 342 are limited from swinging around the fork shaft 32 through the two track grooves 24, thereby keeping the fork shaft 32 and the fork 31 mounted on the fork shaft 32 horizontal.

[0032] The beneficial effects of the present invention are as follows: the present invention has a simple structure, adopts a balancing wheel and a balancing track to achieve the purpose of keeping the fork shaft level during the rotary motion, has good balancing performance, is simple to install and adjust, solves the problem of poor rotation positioning of traditional forks, significantly improves the rotation rigidity of the fork, and has high reliability.

[0033] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A device for keeping the fork level on a rotary conveyor, characterized in that: It includes a main track, a balancing track and a fork mechanism, the fork mechanism includes a fork, a fork shaft, a trolley assembly and a balancing assembly, one end of the fork shaft is provided with a fork, the fork shaft is arranged in the trolley assembly, the trolley assembly is installed on the main track and the trolley assembly drives the fork to move along the main track; the balancing assembly includes a mounting plate and a balancing wheel, the other end of the fork shaft is provided with a mounting plate, the other side of the mounting plate away from the trolley assembly is provided with a balancing wheel, the balancing wheel is installed on the balancing track and the balancing wheel moves along the balancing track, the number of balancing wheels is 2, and the 2 balancing wheels are symmetrically arranged on the mounting plate; the rotation centers of the two balancing wheels are located on both sides below the rotation center of the fork shaft; the balancing track includes an upper balancing track, a vertical balancing track, and a lower balancing track. Track and lower balance track, the upper balance track, the vertical balance track and the lower balance track are connected end to end to form a balance track; the upper balance track and the lower balance track are each provided with two track grooves, and the two balance wheels move along the two track grooves one by one; the two track grooves are cross-arranged; when the two balance wheels pass through the upper balance track or the lower balance track, the two track grooves simultaneously perform double positioning on the two balance wheels, and the two balance wheels are restricted from swinging around the fork shaft by the two track grooves, so that the fork shaft and the fork mounted on the fork shaft remain horizontal; the main track comprises an upper circular arc track, a vertical track and a lower circular arc track, and the upper circular arc track, the vertical track and the lower circular arc track are connected end to end to form a main track.

2. A method for keeping a fork level on a rotary conveyor, based on the device for keeping a fork level on a rotary conveyor according to claim 1, characterized in that: include: The fork is installed on the trolley assembly through the fork shaft. The trolley assembly is installed on the main track and can move along the track on the main track. A balancing wheel is installed at the end of the fork shaft away from the fork. The balancing wheel is installed on the balancing track and moves along the balancing track. There are two balancing wheels, and the two balancing wheels are symmetrically arranged on the mounting plate. The rotation centers of the two balancing wheels are located on both sides below the rotation center of the fork shaft. When the trolley assembly moves along the main track, the balancing track limits the balancing wheel from swinging around the fork shaft to keep the fork shaft and the fork installed on the fork shaft level.

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