Up-down split type cargo loading and unloading equipment

Abstract

The invention discloses upper and lower split type cargo handling equipment which is suitable for a loading platform with steps and comprises a first chassis with a crawler walking mechanism arranged at the bottom and a second chassis with a conveying mechanism and a stacking mechanism arranged at the top, and the stacking mechanism comprises a lifter used for vertically lifting cargoes and a transfer device. The second chassis is slidably connected to the top of the first chassis so that the second chassis can move to the position above the loading platform with the steps in the length direction of the first chassis. The loading platform with the steps has the following technical advantages that 1, the second chassis can move to the position above the loading platform with the steps in the length direction of the first chassis, so that the problem that operation is difficult in a loading scene with the steps is solved; automatic loading and unloading operation of container goods can be achieved, time and labor are saved, and loading and unloading efficiency is improved; and 3, the elevator can vertically lift the goods without interfering with the continuous conveying operation of the conveying mechanism, so that the goods transfer efficiency is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of logistics and transportation, and in particular relates to an upper and lower split type cargo loading and unloading equipment. Background Art

[0002] At present, in the field of logistics and transportation technology, platform cargo loading and unloading operations are an important link in undertaking upstream warehousing and downstream transportation. However, most platform cargo loading and unloading operations are still mainly manual, which is time-consuming and labor-intensive, with poor loading and unloading efficiency, and there are problems such as high cargo damage rate and insecurity, making the platform cargo loading and unloading area a bottleneck affecting supply efficiency; especially for loading platforms with steps (for example, loading goods onto flatbed trucks with steps), it is a difficulty in platform cargo loading and unloading operations. In view of this, the present invention aims to propose an upper and lower split cargo loading and unloading equipment, which can realize the automation of platform cargo loading and unloading operations, save time and manpower, improve loading and unloading efficiency, and meet the loading needs of loading scenes with steps. Summary of the invention

[0003] In order to overcome the technical problems described in the prior art, the object of the present invention is to provide an upper and lower split cargo loading and unloading equipment.

[0004] The present invention provides an upper and lower split cargo loading and unloading device, which is suitable for a loading platform with steps, comprising a first chassis with a crawler walking mechanism at the bottom, and a second chassis with a conveying mechanism and a stacking mechanism at the top, wherein the stacking mechanism comprises an elevator and a transfer device for vertically lifting the cargo, wherein the second chassis is slidably connected to the top of the first chassis so that the second chassis can be moved in the length direction of the first chassis to above the loading platform with steps.

[0005] As a preferred technical solution, two parallel slide rails are provided on the top of the first chassis in the length direction of the first chassis, and two sets of sliders are provided opposite to each other at the bottom of the second chassis. The sliders are movably installed in the slide rails to achieve a slidable connection between the second chassis and the top of the first chassis.

[0006] As a preferred technical solution, a plurality of directional wheels are provided on both sides of the bottom of the second chassis, and when the second chassis moves to above the loading platform with steps, the directional wheels are used for rolling support.

[0007] As a preferred technical solution, any of the directional wheels is equipped with an air suspension system so that the upper and lower split cargo loading and unloading equipment can be suitable for the stepped loading platforms of different heights.

[0008] As a preferred technical solution, the bottom of the second chassis is not less than 600 mm from the ground.

[0009] As a preferred technical solution, the conveying mechanism includes a longitudinal roller conveyor arranged in the length direction of the second chassis, and a transverse roller conveyor arranged perpendicular to the longitudinal roller conveyor. A transfer roller conveyor is provided between the longitudinal roller conveyor and the transverse roller conveyor for reversing conveying, and the transverse roller conveyor can rotate forward and reverse.

[0010] As a preferred technical solution, the transverse roller conveyor includes a transverse bracket fixed to the top of the second chassis, and the elevator includes: A horizontal connecting seat, which is arranged in the space below the horizontal support; A vertical connection seat, which is L-shaped and has one end slidably connected to the surface of the horizontal connection seat; A first fork, which is slidably connected to the other end of the vertical connecting seat; Among them, initially, the fork teeth of the first fork are located in the roller gap of the transverse roller conveyor. After the goods are transported to the transverse roller conveyor, the first fork rises to lift the goods, and the vertical connecting seat and the first fork are moved away from the transverse roller conveyor.

[0011] As a preferred technical solution, the transfer device includes a sliding base slidably connected to the top of the second chassis, and a transfer robot arm connected to the sliding base, a second fork is arranged at the end of the transfer robot arm, and the fork tine of the second fork can be inserted into the fork tine gap of the first fork, that is, when the second fork rises from the fork tine gap of the first fork, the goods can be transferred from the first fork to the second fork.

[0012] As a preferred technical solution, the directional wheels equipped with the air suspension system are arranged on both sides below the transverse bracket, and the second chassis is provided with avoidance grooves for the directional wheels to extend out, so as to reduce the space occupied by the directional wheels on the first chassis.

[0013] As a preferred technical solution, the second fork is also equipped with a telescopic push rod, and the free end of the telescopic push rod is equipped with an automated vacuum suction cup for adsorbing goods. When the goods are transferred to a designated location, the automated vacuum suction cup is released and the telescopic push rod is extended to unload the goods.

[0014] In summary, the present invention has the following technical effects: The present invention discloses an upper and lower split cargo loading and unloading equipment, which is suitable for a loading platform with steps, and includes a first chassis with a crawler walking mechanism at the bottom, and a second chassis with a conveying mechanism and a stacking mechanism at the top, wherein the stacking mechanism includes an elevator and a transfer device for vertically lifting the cargo, wherein the second chassis is slidably connected to the top of the first chassis so that the second chassis can be moved to the top of the loading platform with steps in the length direction of the first chassis. The upper and lower split cargo loading and unloading equipment of the present invention has the following technical advantages: 1. The second chassis of the present invention can be moved to the top of the loading platform with steps in the length direction of the first chassis, so as to overcome the operational difficulties in the loading scene with steps; 2. The present invention can realize the automated loading and unloading of container cargo, save time and labor, improve loading and unloading efficiency, and has significant practical value; 3. The elevator of the present invention can vertically lift the cargo without interfering with the continuous conveying operation of the conveying mechanism, effectively improving the cargo transfer efficiency. Therefore, compared with the existing platform cargo loading and unloading technology, the upper and lower split cargo loading and unloading equipment provided by the present invention has obvious technical advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of an upper and lower split cargo loading and unloading equipment according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a first chassis and an upper portion thereof according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a second chassis and an upper portion thereof according to an embodiment of the present invention; Figure 4 is a schematic diagram of a second chassis according to an embodiment of the present invention being moved above a loading platform with steps; Figure 5 is a structural schematic diagram of an elevator according to an embodiment of the present invention; Figure 6 is a schematic structural diagram of a transfer device according to an embodiment of the present invention; The meanings of the reference numerals are as follows: 1-first chassis, 11-crawler traveling mechanism, 12-slide rail; 2-second chassis, 211-longitudinal roller conveyor, 212-transfer roller conveyor, 213-transverse roller conveyor, 2131-transverse bracket, 22-lifting machine, 221-horizontal connecting seat, 222-vertical connecting seat, 223-first fork, 23-transfer mechanical arm, 231-sliding base, 232-second fork, 2321-telescopic push rod, 2322 automatic vacuum suction cup, 24-directional wheel, 241-avoidance groove; 3-With step loading platform. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. The present embodiment described herein is only for illustrative purposes and is not intended to limit the scope of protection of the present invention. Therefore, it should be understood that various modifications and changes can be made to this embodiment without departing from the scope of protection of the present invention. In the description of the present invention, unless otherwise clearly specified and limited, the term "and / or" includes any and all combinations of one or more associated listed items. Unless otherwise specified or explained, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Further, in the description of the present invention, it should be understood that the directional words described in the present embodiment are described at the angles shown in the accompanying drawings and should not be understood as limiting the present embodiment. It should also be understood that in the context, when it is mentioned that an element or feature is connected to another element (one or more), it can not only be directly connected to the other (one or more) elements, but also indirectly connected to the other (one or more) elements through an intermediate element.

[0018] Before introducing the technical solution of the present invention, it is necessary to explain the creation background of the invention of the present invention. It is common that, at present, in the field of logistics and transportation technology, platform cargo loading and unloading operations are an important link in undertaking upstream warehousing and downstream transportation. However, most platform cargo loading and unloading operations are still mainly manual, time-consuming and labor-intensive, with poor loading and unloading efficiency, and there are problems such as high cargo damage rate and insecurity, which makes the platform cargo loading and unloading area a bottleneck affecting supply efficiency; in particular, for loading platforms with steps (for example, loading goods onto flatbed trucks with steps), it is a difficulty in platform cargo loading and unloading operations. In view of this, the present invention aims to propose an upper and lower split cargo loading and unloading equipment, which can realize the automation of platform cargo loading and unloading operations, save time and manpower, improve loading and unloading efficiency, and meet the loading needs of loading scenarios with steps.

[0019] See also Figures 1 to 6 The exemplary embodiment of the present invention first provides a split-up and split-down cargo handling equipment, which is suitable for a loading platform 3 with steps, and includes a first chassis 1 with a crawler walking mechanism 11 at the bottom, and a second chassis 2 with a conveying mechanism and a stacking mechanism at the top, wherein the stacking mechanism includes a lift 22 for vertically lifting cargo and a transfer device, wherein the second chassis 2 is slidably connected to the top of the first chassis 1 so that the second chassis 2 can move to the top of the loading platform 3 with steps in the length direction of the first chassis 1. Specifically, when encountering a loading platform 3 with steps, after the split-up and split-down cargo handling equipment approaches the platform as much as possible, the second chassis 2 can move along the length direction of the first chassis 1 under corresponding driving, that is, the second chassis 2 moves to the top of the loading platform 3 with steps, so that the upper half of the split-up and split-down cargo handling equipment can enter the high step area for extended loading, thereby overcoming the technical difficulty that the traditional cargo handling technology is difficult to approach when encountering a loading platform with steps and cannot smoothly carry out loading and unloading operations.

[0020] See also Figures 1 to 4 In some embodiments, the connection relationship between the first chassis 1 and the second chassis 2 is specifically that two parallel slide rails 12 are provided on the top of the first chassis 1 in the length direction of the first chassis 1, and two sets of sliders are provided on the bottom of the second chassis 2, and the sliders are movably installed in the slide rails 12 to achieve the slidable connection of the second chassis 2 to the top of the first chassis 1. It should be noted that a first drive system is also configured between the first chassis 1 and the second chassis 2 to push the second chassis 2 to move back and forth, wherein the first drive system can be realized by PLC programming in conjunction with a servo motor group, or by a hydraulic cylinder, etc., and the present invention does not specifically limit this.

[0021] Further, on the basis that the second chassis 2 slides relative to the first chassis 1, please refer to Figures 1 to 4In some embodiments, a plurality of directional wheels 24 are provided on both sides of the bottom of the second chassis 2. When the second chassis 2 moves above the loading platform 3 with steps, the plurality of directional wheels 24 can be used as rolling supports to prevent the second chassis 2 from directly contacting the loading platform 3 with steps and causing severe friction.

[0022] Furthermore, on the basis of a plurality of directional wheels 24 being provided on both sides of the bottom of the second chassis 2, in some embodiments, any directional wheel 24 is equipped with an air suspension system, so that the upper and lower split cargo handling equipment can be applied to loading platforms 3 with steps of different heights. It should be understood that since the loading platform 3 with steps is a non-standard part, for example, the height of some flatbed trucks with steps is often 300 to 600 mm, for this reason, the directional wheel 24 equipped with the air suspension system can determine the height of the loading platform 3 with steps through its matching distance sensor, thereby reducing or raising the gap between the second chassis 2 and the loading platform 3 with steps, so that the upper and lower split cargo handling equipment can be applied to loading platforms 3 with steps of different heights, effectively improving the applicability of the present invention. Preferably, the bottom of the second chassis 2 is not less than 600 mm from the ground.

[0023] The conveying mechanism and the palletizing mechanism of the present invention are described below: For conveying mechanism: See also Figure 1 and Figure 3 In some embodiments, the conveying mechanism includes a longitudinal roller conveyor 211 arranged in the length direction of the second chassis 2, and a transverse roller conveyor 213 arranged perpendicular to the longitudinal roller conveyor, wherein a transfer roller conveyor 212 is provided between the longitudinal roller conveyor 211 and the transverse roller conveyor 213 for reversing conveying. Figure 4 As shown, the longitudinal roller conveyor 211 and the transverse roller conveyor 213 are arranged vertically, which is different from the traditional conveying mechanism that only has a single arrangement and makes the longitudinal or transverse size of the chassis too large. The present invention has a compact structure and high space utilization, and effectively reduces the size of the chassis to save production costs. In addition, as a preferred technical solution, the transverse roller conveyor 213 can rotate forward and reverse. It should be understood that when the transverse roller conveyor 213 stacks the goods transported by the transfer roller conveyor 212 in a row, the transverse roller conveyor 213 will then roll in the opposite direction according to the set program, so that there is a small gap between the goods instead of being close to each other, which is conducive to the stability of the entire surface of the goods after loading, that is, the upper goods press the gap between the lower goods to improve the stability of the entire surface of the goods after subsequent stacking.

[0024] For the palletizing mechanism, it includes an elevator 22 and a transfer device: First of all, it is clear that the transverse roller conveyor 213 includes a transverse bracket 2131 fixed to the top of the second chassis 2.

[0025] See also Figure 1 and Figure 5 In some embodiments, the lift 22 includes a horizontal connection seat 221 disposed in the space below the horizontal bracket 2131, an L-shaped vertical connection seat 222 slidably connected to the surface of the horizontal connection seat 221 at one end, and a first fork 223 slidably connected to the other end of the vertical connection seat 222. It should be noted that, initially, the fork teeth of the first fork 223 are located in the roller gap of the horizontal roller conveyor 213. After the goods are transported to the horizontal roller conveyor 213, the first fork 223 rises to lift the goods, and the vertical connection seat 222 and the first fork 223 are moved away from the horizontal roller conveyor 213. That is, the lift 22 plays the role of switching workstations, so that when the first fork 223 extracts the goods, it will not delay the lower horizontal roller conveyor 213 from continuing to transport the goods, thereby improving the overall cargo loading and unloading efficiency. It should be noted that a second drive system is configured between the horizontal connecting seat 221 and the vertical connecting seat 222 to push the vertical connecting seat 222 to perform horizontal reciprocating movement, and a third drive system is also configured between the vertical connecting seat 222 and the first fork 223 to push the first fork 223 to perform vertical reciprocating movement, wherein the second drive system and the third drive can be realized by PLC programming in conjunction with a servo motor group, or by a hydraulic cylinder, etc., and the present invention does not make specific limitations on this.

[0026] See also Figure 1 and Figure 6 In some embodiments, the transfer device includes a sliding base 231 slidably connected to the top of the second chassis 2, and a transfer robot arm 23 connected to the sliding base 231. A second fork 232 is arranged at the end of the transfer robot arm 23. The fork tine of the second fork 232 can be inserted into the fork tine gap of the first fork 223, that is, when the second fork 232 rises from the fork tine gap of the first fork 223, the goods can be transferred from the first fork 223 to the second fork 232. To this end, the transfer robot arm 23 connected to the slidable sliding base 231 can transfer the goods to the designated location for palletizing. Among them, as a preferred technical solution, the second fork 232 is also equipped with a telescopic push rod 2321, and the free end of the telescopic push rod 2321 is equipped with an automated vacuum suction cup 2322 for adsorbing the goods. Specifically, when the goods are transferred to the designated location, the automated vacuum suction cup 2322 begins to release pressure to release the goods, and the telescopic push rod 2321 extends to push the goods from the second fork 232 to achieve unloading of the goods.

[0027] See also Figure 1In some embodiments, the directional wheels 24 equipped with the air suspension system are arranged on both sides below the transverse bracket 2131, and the second chassis 2 is provided with an avoidance groove 241 for the directional wheels 24 to extend out. The air suspension system can control the directional wheels 24 to extend out or retract from the avoidance groove 241. With such a design, the space occupied by the directional wheels 24 on the first chassis 1 can be reduced, so that when the height of the second chassis 2 is fixed, the space can be reserved to the greatest extent to cooperate with a loading platform with a higher height and steps, which effectively increases the practicality and adaptability of this upper and lower split cargo loading and unloading equipment.

[0028] In summary, the upper and lower split cargo loading and unloading equipment of the present invention has the following technical advantages: 1. The second chassis 2 of the present invention can be moved in the length direction of the first chassis 1 to above the loading platform 3 with steps, so as to overcome the operational difficulties in the loading scene with steps; 2. The present invention can realize the automated loading and unloading operations of container cargo, save time and labor, improve loading and unloading efficiency, and has significant practical value; 3. The elevator 22 of the present invention can lift the cargo vertically without interfering with the continuous conveying operation of the conveying mechanism, effectively improving the cargo transfer efficiency.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An upper and lower split cargo loading and unloading equipment, suitable for a loading platform with steps, characterized in that: It comprises a first chassis with a crawler walking mechanism at the bottom, and a second chassis with a conveying mechanism and a stacking mechanism at the top, wherein the stacking mechanism comprises an elevator and a transfer device for vertically lifting the goods, wherein the second chassis is slidably connected to the top of the first chassis so that the second chassis can be moved in the length direction of the first chassis to above the loading platform with steps.

2. The upper and lower split cargo handling equipment according to claim 1, characterized in that: Two parallel slide rails are provided on the top of the first chassis in the length direction of the first chassis, and two sets of sliders are provided opposite to each other at the bottom of the second chassis. The sliders are movably installed in the slide rails to achieve slidable connection of the second chassis to the top of the first chassis.

3. The upper and lower split cargo handling equipment according to claim 2, characterized in that: A plurality of directional wheels are provided on both sides of the bottom of the second chassis, and the directional wheels are used for rolling support when the second chassis moves above the loading platform with steps.

4. The upper and lower split cargo handling equipment according to claim 3, characterized in that: Any of the directional wheels is equipped with an air suspension system so that the upper and lower split cargo loading and unloading equipment can be suitable for loading platforms with steps of different heights.

5. The upper and lower split cargo handling equipment according to claim 4, characterized in that: The bottom of the second chassis is not less than 600 mm from the ground.

6. The upper and lower split cargo handling equipment according to claim 5, characterized in that: The conveying mechanism includes a longitudinal roller conveyor arranged in the length direction of the second chassis, and a transverse roller conveyor arranged perpendicular to the longitudinal roller conveyor. A transfer roller conveyor is provided between the longitudinal roller conveyor and the transverse roller conveyor for reversing conveying. The transverse roller conveyor can rotate forward and reverse.

7. The upper and lower split cargo handling equipment according to claim 6, characterized in that: The transverse roller conveyor includes a transverse bracket fixed to the top of the second chassis, and the elevator includes: A horizontal connecting seat, which is arranged in the space below the horizontal support; A vertical connection seat, which is L-shaped and has one end slidably connected to the surface of the horizontal connection seat; A first fork, which is slidably connected to the other end of the vertical connecting seat; Among them, initially, the fork teeth of the first fork are located in the roller gap of the transverse roller conveyor. After the goods are transported to the transverse roller conveyor, the first fork rises to lift the goods, and the vertical connecting seat and the first fork are moved away from the transverse roller conveyor.

8. The upper and lower split cargo handling equipment according to claim 7, characterized in that: The transfer device includes a sliding base slidably connected to the top of the second chassis, and a transfer robot arm connected to the sliding base, a second fork is arranged at the end of the transfer robot arm, and the fork tine of the second fork can be inserted into the fork tine gap of the first fork, that is, when the second fork rises from the fork tine gap of the first fork, the goods can be transferred from the first fork to the second fork.

9. The upper and lower split cargo handling equipment according to claim 7, characterized in that: The directional wheels equipped with the air suspension system are arranged on both sides below the transverse bracket, and the second chassis is provided with avoidance grooves for the directional wheels to extend out, so as to reduce the space occupied by the directional wheels on the first chassis.

10. The upper and lower split cargo handling equipment according to claim 8, characterized in that: The second fork is also equipped with a telescopic push rod, and the free end of the telescopic push rod is equipped with an automated vacuum suction cup for adsorbing goods. When the goods are transferred to a designated location, the automated vacuum suction cup is released and the telescopic push rod is extended to unload the goods.

Images