CN212892063U

CN212892063U - Hoisting machine

Info

Publication number: CN212892063U
Application number: CN202020861493.9U
Authority: CN
Inventors: 刘真国; 李广勇
Original assignee: Kengic Intelligent Technology Co Ltd
Current assignee: Kengic Intelligent Technology Co Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-04-06
Anticipated expiration: 2030-05-21

Abstract

The lifting machine, take and rotate the transmission detection device who detects with motor drive shaft synchronization to stage improvement load platform elevating rate and stroke control precision on the whole, realize simultaneously that disconnected area deals with other unusual lifting state's monitoring, furthest prevention and solution elevator belt off tracking, wearing and tearing problem. The lifting machine comprises a basic frame formed by connecting a left upright post, a right upright post, an upper cross beam and a lower cross beam, and the cargo carrying platform is connected with a lifting transmission assembly. The lifting transmission assembly comprises a lifting belt driven by a group of servo motors, and a driving module, a steering module and a redirection module which are positioned on the lower cross beam; at least one group of steering shafts of the steering module are arranged on the main driving seat through a bearing seat and a support bearing, and at least one group of steering wheels bypassing the lifting belt are respectively sleeved on the steering shafts; at least one encoder is mounted at the shaft end of at least one group of steering shafts.

Description

Hoisting machine

Technical Field

The utility model relates to a be applied to lifting machine institutional advancement in automatic stereoscopic warehouse belongs to logistics storage technical field.

Background

At present, in conveying equipment in the logistics storage industry, a lifting machine is generally used for lifting or lowering a tray, a cargo carrying platform and other devices from one working height to another working height, so that the vertical warehouse is assisted to finish warehousing and ex-warehouse of materials, layer changing operation and maintenance of a trolley and the like.

The existing hoister used in open at home and abroad has single function and large volume, and mainly has the following defects: firstly, high-speed lifting machine has become the standard equipment of modern commodity circulation automatic production line, but current equipment structure combination can't improve the cargo bed elevating speed by a wide margin effectively, if rely on high-power motor to drive alone, then the efficiency ratio is lower, is unfavorable for the control of operating cost. Secondly, the positioning accuracy of lifting equipment such as a cargo carrying platform is not high, the running height is difficult to be accurately controlled, and the phenomenon of layer staggering often occurs, so that troubles are brought to the delivery and storage of cargos. Thirdly, for a hoisting machine with higher running speed or larger stroke, the lifting belt is easy to deviate and have overlarge abrasion due to drift on the premise of bearing larger load.

In view of this, the present patent application is specifically proposed.

SUMMERY OF THE UTILITY MODEL

The lifting machine, lie in solving the problem that above-mentioned prior art exists and take the transmission detection device who detects with motor drive shaft synchronous rotation to stage improvement load platform elevating rate and stroke control precision on the whole, realize simultaneously that disconnected area deals with other unusual elevating system's monitoring, furthest prevention and solution hoisting belt off tracking, wearing and tearing problem.

For realizing above-mentioned design purpose, the lifting machine, include the basic frame who comprises left stand, right stand, entablature and bottom end rail interconnect, be provided with respectively at the lateral part of left stand, right stand and carry the cargo bed, 2 carry cargo beds respectively connection structure the same, along two sets of promotion drive assembly that the stand bilateral symmetry set up.

The lifting transmission assembly comprises a lifting belt driven by a group of servo motors, and a driving module, a steering module and a redirection module which are positioned on the lower cross beam;

the servo motor is connected to the main driving shaft in a driving mode, the main driving shaft is mounted on the main driving seat through a bearing seat, and at least one group of driving belt wheels which bypass the lifting belt are respectively sleeved on the main driving shaft;

two ends of at least one group of redirection shafts of the redirection module are respectively arranged on the main driving seat through driven shaft embedded plates, and at least one group of redirection flat wheels which bypass the lifting belt are sleeved on the redirection shafts;

at least one group of steering shafts of the steering module are arranged on the main driving seat through a bearing seat and a support bearing, and at least one group of steering wheels bypassing the lifting belt are respectively sleeved on the steering shafts; at least one encoder is mounted at the shaft end of at least one group of steering shafts.

Furthermore, the lifting transmission assembly comprises 2 groups of lifting belts driven by the same servo motor, and the 2 groups of lifting belts synchronously and parallelly bypass the same group of driving module, steering module and direction changing module to form a lifting transmission track running in the same closed loop.

Further, promote transmission assembly still include as follows the module of rectifying, be provided with 2 at least groups wheelsets of rectifying in the lifting belt both sides, every group wheelset of rectifying includes 2 and rectifies the wheel, rectify the wheel and install in the shaft of rectifying through inner bearing, rectify the shaft tip of rectifying and install in main drive seat one side through rectifying the fixed plate.

In summary, the hoisting machine described in the present application has the following advantages:

1. effectively improve the modularization and the lightweight design of lifting machine overall structure, improve lifting rate correspondingly.

2. The operation speed of the lifting operation is optimized, the operation efficiency is high, and the production cost is low.

3. The steering shaft monitoring device has the advantages that the steering shaft monitoring device synchronously operates with the motor driving shaft, so that the stroke ratio between the actual lifting belt and the motor driving shaft can be known, the actual running height of lifting equipment such as a cargo carrying platform can be accurately reflected, the cargo positioning precision is high, the monitoring result is more objective and effective, the phenomenon of layer staggering is effectively avoided, and the cargos can be delivered into and delivered into a warehouse more smoothly.

4. The additional deviation correcting device can effectively solve the problems of deviation and excessive abrasion, and is favorable for further improving the running speed and the travel distance.

Drawings

The invention will now be further described with reference to the following figures.

Fig. 1 is a schematic structural view of a hoist;

FIG. 2 is a schematic front view of FIG. 1;

FIG. 3 is a schematic structural view of the lift drive assembly;

FIG. 4 is a partial structural sectional view of one side of the motor drive shaft of FIG. 3;

FIG. 5 is a partial structural sectional view in elevation of FIG. 3;

fig. 6 is a sectional view taken along line a-a of fig. 5.

In the figure, a left upright post 101, a right upright post 102, an upper cross beam 103, a lower cross beam 104, a cargo bed 200, a lifting transmission assembly 600, a main driving seat 601, a bearing seat 602, a first encoder 603, a servo motor 604, a first steering shaft 605, a main driving shaft 606, a driving belt pulley 607, a lifting belt 608, a deviation correcting fixing plate 609, a deviation correcting wheel shaft 610, a deviation correcting wheel 611, a direction-changing flat wheel 612, a driven shaft panel 614, a direction-changing shaft 615, a second steering shaft 617, a second encoder 618, a support bearing 620, a first steering wheel 623, a driven sheave 624, a belt fixing plate 625 and a second steering wheel 626.

Detailed Description

Example 1, as shown in fig. 1 and 2, the present application proposes the following improvement of the elevator structure:

the hoisting machine comprises a base frame formed by mutually connecting a left upright post 101, a right upright post 102, an upper cross beam 103 and a lower cross beam 104, and the base frame ensures the integral rigidity and the lifting operation precision of the hoisting machine.

The side parts of the left upright post 101 and the right upright post 102 are respectively provided with a cargo carrying platform 200, and 2 cargo carrying platforms 200 are respectively connected with two groups of lifting transmission assemblies 600 which have the same structure and are arranged along the upright posts in a bilateral symmetry manner.

The lift drive assembly 600 includes 2 sets of lift belts 608 driven by a set of servo motors 604. Each set of lifting straps 608 is secured to the load bed 200 by strap mounts 625, passing around driven sheaves 624 mounted to the upper beam 103, respectively.

Based on the above-mentioned lifting transmission assembly 600, under the driving of the servo motor 604, the monitoring of the actual lifting and belt breaking of the lifting belt 608 and the operation and maintenance of synchronous deviation correction are implemented in the process of lifting transmission of the loading platform 200 by the lifting belt 608.

The lifting transmission assembly 600 includes a driving module, a steering module, a direction changing module and a deviation correcting module on the lower beam 104. In particular, the amount of the solvent to be used,

in the driving module, the servo motor 604 is drivingly connected to the main driving shaft 606, the main driving shaft 606 is installed on the main driving seat 601 through the bearing seat 602, and 2 sets of driving pulleys 607 which respectively bypass 2 sets of lifting belts 608 are respectively sleeved on the main driving shaft 606. The servo motor 604 drives the main driving shaft 606 to rotate, and the main driving shaft 606 drives the lifting belt 608 to move up and down through the driving belt pulley 607.

In the direction changing module, two ends of a direction changing shaft 615 are respectively installed on a main driving seat 601 through a driven shaft panel 614, and 2 groups of direction changing flat wheels 612 which respectively bypass 2 groups of lifting belts 608 are respectively sleeved on the direction changing shaft 615; as the lift belt 608 passes around the redirecting flat wheel 612, the redirecting flat wheel 612 rotates on a redirecting shaft 615. The redirection module is used for forming vertical guiding redirection for the lifting belt 608 between the main driving shaft 606 of the driving module and the driven sheave 624 of the upper cross beam 103, so that the lifting belt 608 and the two side columns are kept in a vertical parallel running state, the occupied space is reduced, and meanwhile, the interference between the lifting belt 608 and other parts is avoided.

In the steering module, a first steering shaft 605 and a second steering shaft 617 are mounted on a main drive base 601 via a bearing block 602 and a carrier bearing 620, respectively, and a first steering wheel 623 and a second steering wheel 626 that go around 2 sets of lifting belts 608 are respectively fitted over the first steering shaft 605 and the second steering shaft 617. During operation, the lifting belt 608 rotates the first steering wheel 623 and the second steering wheel 626, and further rotates the first steering shaft 605 and the second steering shaft 617 synchronously.

Based on the above-mentioned elevator structure design, under normal conditions, the rotation stroke of the main driving shaft 606 should be consistent with the lifting stroke of the lifting belt 608.

But the influence of part processing, installation and debugging precision, other equipment service life factors and the like, in the actual logistics conveying process, the deviation between the servo motor output signal and the positioning result of the operation height of the cargo carrying platform is easy to occur, and the transmission and conveying efficiency is influenced.

For this purpose, a first encoder 603 and a second encoder 618 may be attached to the shaft ends of the first steering shaft 605 and the second steering shaft 617, respectively. The lift stroke distance of the lift belt 608 is reflected on the rotational strokes of the first steering shaft 605 and the second steering shaft 617 via the first steering wheel 623 and the second steering wheel 626.

The stroke distances of the 2 sets of lifting belts 608 can be calculated by the frequency feedback signals output by the first encoder 603 and the second encoder 618. The content of signal acquisition and calculation output by using the encoder, including specific monitoring software and feedback circuit design, belongs to the prior art, and is not described herein again.

The stroke distances of the 2 sets of lifting belts 608 calculated by the first encoder 603 and the second encoder 618 are compared with the output signal of the servo motor 604, so as to feedback the deviation between the output signal of the servo motor 604 and the actual stroke distance of the lifting belt 608 and the deviation range.

When the lifting belt 608 has a failure such as a break, a winding knot, or the like, the output signals of the first encoder 603 and the second encoder 618 are found to be obviously abnormal by comparing with the output signals of the servo motor 604, so that the occurrence of the failure in the lifting belt 608 is directly and accurately determined.

The 2 sets of lifting belts 608 are individually monitored by the 2 sets of encoders, and when one set of lifting belts 608 fails and cannot continue to operate, the other set of lifting belts 608 can still operate temporarily to ensure that the goods carried by the cargo carrying platform 200 cannot fall and wait for the handling of field personnel, thereby ensuring the safety of the field work area.

Further, in order to prevent the lifting belt 608 from deviating, winding, knotting and other accidents in the operation process to interfere with normal lifting operation, the application provides the following design of the deviation rectifying module.

In the deviation rectifying module, at least 2 groups of deviation rectifying wheel sets are arranged on two sides of each group of lifting belts 608, each group of deviation rectifying wheel set comprises 2 deviation rectifying wheels 611, the deviation rectifying wheels 611 are mounted on a deviation rectifying wheel shaft 610 through internal bearings and can freely rotate around the deviation rectifying wheel shaft 610, and the end part of the deviation rectifying wheel shaft 610 is mounted on one side of the main driving seat 601 through a deviation rectifying fixing plate 609.

At the side of the lifting belt 608, the deviation rectifying wheels 611 are arranged in pairs, and each deviation rectifying wheel 611 of each group of deviation rectifying wheel groups can independently act along with the lifting operation of the lifting belt 608, namely, each deviation rectifying wheel 611 is driven by the lifting belt 608 in a friction mode to rotate clockwise or anticlockwise, so that the lifting belt 608 is effectively clamped from two sides, the normal lifting operation of the lifting belt 608 is not hindered, the lifting track of the lifting belt 608 in operation is normally limited, and the problems that the deviation or the winding and knotting are easily caused when the lifting belt 608 of the same group is lifted and lowered simultaneously are effectively solved.

In summary, each set of lifting belts 608 is driven by the servo motor 604 to lift and descend fully and circularly by bypassing the driving pulley 607 on the main driving shaft 606, the direction-changing flat wheel 612 on the direction-changing shaft 615, and the first steering wheel 623 on the main first steering shaft 605 or the second steering wheel 626 on the second steering shaft 617, so as to form a transmission track of closed loop operation.

In the transmission process, the two sides of the lifting belt 608 are clamped and limited in different rotating directions through 2 groups of deviation correcting wheel sets, so that the lifting belt 608 can be guaranteed to always run on a vertical fixed track, and the cargo carrying platform 200 can be accurately transmitted to the designated working height.

As above, the embodiments given in connection with the drawings are only preferred for achieving the objects of the present invention. Those skilled in the art can now appreciate that other alternative configurations consistent with the present invention may be readily devised. Other structural features thus obtained are also intended to be within the scope of the present invention.

Claims

1. The utility model provides a lifting machine, includes the foundation frame who comprises left stand, right stand, entablature and bottom end rail interconnect, is provided with respectively at the lateral part of left stand, right stand and carries the cargo bed, and 2 carry the cargo bed respectively the connection structure the same, along two sets of promotion drive assembly that stand bilateral symmetry set up, its characterized in that:

2. The hoist as claimed in claim 1, characterized in that: the lifting transmission component comprises 2 groups of lifting belts driven by the same servo motor, and the 2 groups of lifting belts synchronously and parallelly bypass the same group of driving modules, steering modules and direction changing modules to form a lifting transmission track running in the same closed loop.

3. The hoisting machine as claimed in claim 1 or 2, characterized in that: promote transmission assembly still include the module of rectifying as follows, be provided with 2 at least groups wheelsets of rectifying in the lifting belt both sides, every group wheelset of rectifying includes 2 and rectifies the wheel, rectify the wheel and install in rectifying the shaft through inner bearing, rectify the shaft tip and install in main drive seat one side through rectifying the fixed plate.