Conveying system

Abstract

The application discloses a conveying system, which comprises a plurality of racks, a conveying belt and a lifting assembly. The plurality of racks are connected in sequence and any two adjacent racks can swing relative to each other, so that any one of the two adjacent racks has a slope. The conveying belt is sleeved on the outer circumferential side of the plurality of racks and can rotate relative to the racks. The lifting assembly is arranged on any rack, the lower end of the lifting assembly can abut against the ground, the distance between the lower end of the lifting assembly and the rack is adjustable, and the lifting assembly is suitable for lifting part of the racks to a distance from the ground, so that ground operation can be performed at the distance. The conveying system has the advantages of facilitating the repair of the reverse bottom arch operation in operation and improving the roadway repair efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying equipment, in particular to a conveying system. BACKGROUND

[0002] The soft rock roadway of the underground tunneling working face of the coal mine is one of the representative complex geological conditions, the ground stress is high, the deformation is strong, the underground surrounding rock engineering geological condition is poor, the floor of the roadway needs to be reinforced and repaired, the underground conveying system in the related technology is not convenient for repairing the reverse arch operation, and the roadway repair efficiency is affected. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, an embodiment of the present application proposes a conveying system, which has the advantages of facilitating the repair of the reverse arch operation in operation and improving the roadway repair efficiency.

[0004] The conveying system of the embodiment of the present application comprises a plurality of racks, the plurality of racks are sequentially connected in head-to-tail, and any two adjacent racks can swing relative to each other, so that any one of the two adjacent racks has a slope; a conveying belt, the conveying belt is sleeved on the outer circumferential side of the plurality of racks, and the conveying belt can rotate relative to the racks; a lifting assembly, the lifting assembly is arranged on any rack, the lower end of the lifting assembly can abut against the ground, and the distance between the lower end of the lifting assembly and the rack is adjustable, and the lifting assembly is adapted to lift part of the racks to have a set distance from the ground to perform ground operation at the set distance.

[0005] The conveying system of the embodiment of the present application has the advantages of facilitating the repair of the reverse arch operation in operation and improving the roadway repair efficiency.

[0006] In some embodiments, the plurality of racks comprises a first section, a second section and a third section, the second section is connected between the first section and the third section, the first section comprises at least one rack, the second section comprises at least one rack, the third section comprises at least one rack, the lifting assembly comprises a first assembly and a second assembly, the first assembly is arranged on the first section, the second assembly is arranged on the third section, and the first assembly and the second assembly are adapted to lift the second section and make the first section and the third section have a slope.

[0007] In some embodiments, the lifting assembly comprises a third assembly and a fourth assembly, the third assembly is arranged at one end of the first section away from the second section, the first assembly is arranged at one end of the first section close to the second section, the fourth assembly is arranged at one end of the third section away from the second section, and the second assembly is arranged at one end of the third section close to the second section, the length of the third assembly or the fourth assembly is smaller than the length of the first assembly or the second assembly when the first assembly and the second assembly lift the second section.

[0008] In some embodiments, the conveying system comprises a plurality of connecting cylinders, one end of each connecting cylinder is rotatably connected to one of any two adjacent racks, the other end of each connecting cylinder is rotatably connected to the other of the two adjacent racks, and the length of each connecting cylinder is adjustable so that the two adjacent racks can swing relative to each other in the height direction.

[0009] In some embodiments, the rack comprises an upper cross beam and a lower cross beam, the upper cross beam and the lower cross beam extend along the length of the rack, the length of the upper cross beam is greater than the length of the lower cross beam, the upper cross beams of any two adjacent racks are rotatably connected, and the connecting cylinders are connected between the lower cross beams of any two adjacent racks.

[0010] In some embodiments, the lifting assembly comprises a first driver, a second driver, and a base, the first driver is rotatably connected to the upper cross beam, the free end of the first driver is rotatably connected to the base, and the distance between the free end of the first driver and the connection between the first driver and the upper cross beam is adjustable, the second driver is rotatably connected to the lower cross beam, and the distance between the connection between the first driver and the upper cross beam and the connection between the second driver and the lower cross beam in the length direction of the rack is adjustable, the free end of the second driver is rotatably connected to the base, and the distance between the free end of the second driver and the connection between the second driver and the lower cross beam is adjustable.

[0011] In some embodiments, the lifting assembly further comprises a sliding shoe, the sliding shoe comprises a correction assembly and a sliding plate, the correction assembly is connected between the sliding plate and the base, and the correction assembly allows the sliding plate to slide relative to the base in the width direction of the conveying system to correct the deviation in the width direction of the conveying system when the conveying system slides.

[0012] In some embodiments, the lifting assembly comprises two first drivers, two second drivers, the two first drivers being oppositely arranged along a width direction of the conveying system, the two second drivers being oppositely arranged along the width direction of the conveying system, the deviation rectifying assembly comprises a third driver, the third driver comprises a first part and a second part, the first part extends along the width direction of the conveying system and is connected with the base, the second part is slidable relative to the first part along the width direction of the conveying system and is connected with the sliding plate to drive the sliding plate to slide along the width direction of the conveying system.

[0013] In some embodiments, the lifting assembly further comprises moving wheels, the moving wheels are arranged at lower ends of the base and are rotatable relative to the base to enable the conveying system to move along a length direction thereof, the moving wheels are multiple, and the multiple moving wheels are arranged at intervals along an extension direction of the conveying system.

[0014] In some embodiments, the conveying system comprises a safety chain, the safety chain is adapted to be connected between the rack and a roof of a roadway after part of the rack is lifted by the lifting assembly to prevent the rack from falling. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a first schematic view of a conveying system according to an embodiment of the present application.

[0016] Figure 2 is a second schematic view of a conveying system according to an embodiment of the present application.

[0017] Figure 3 is a front view schematic view of a lifting assembly of a conveying system according to an embodiment of the present application.

[0018] Figure 4 is a side view schematic view of a lifting assembly of a conveying system according to an embodiment of the present application.

[0019] Figure 5 is Figure 1 is a partial enlarged view of A in FIG. 4.

[0020] Figure 6 is Figure 1 is a partial enlarged view of B in FIG. 4.

[0021] REFERENCE NUMERALS:

[0022] Roadway 01; rack 1; upper cross beam 11; lower cross beam 12; first section 101; second section 102; third section 103; lifting assembly 2; first driver 21; second driver 22; base 23; sliding shoe 24; third driver 241; second part 2411; first part 2412; sliding plate 242; protruding part 2421; moving wheel 25; first assembly 201; second assembly 202; third assembly 203; fourth assembly 204; connecting oil cylinder 3; DETAILED DESCRIPTION

[0023] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0024] The conveying system of the embodiments of the present application is described below in combination with Figures 1 to 6 The conveying system of the embodiments of the present application is described below in combination with

[0025] The conveying system of the embodiments of the present application includes a plurality of racks 1, a conveying belt (not shown in the drawings) and a lifting assembly 2.

[0026] The plurality of racks 1 are connected in sequence from front to back, and any two adjacent racks 1 can swing relative to each other, so that any one of the two adjacent racks 1 has a slope.

[0027] Specifically, the rack 1 extends along the front-back direction, and the plurality of racks 1 are connected in sequence from front to back along the length direction of the roadway 01 in the front-back direction to form the framework of the conveying system of the embodiments of the present application, and the two adjacent racks 1 are rotatably connected so that any one of the two adjacent racks 1 can swing relative to the other in the up-down direction, and the rotation shaft between the two connected racks 1 extends along the width direction of the roadway 01.

[0028] The conveying belt is sleeved on the outer circumferential side of the plurality of racks 1, and the conveying belt can rotate relative to the rack 1.

[0029] Specifically, a plurality of rollers are provided on the rack 1, the conveying belt is provided on the outer circumferential side of the rollers on the plurality of racks 1, and the conveying system of the embodiments of the present application further includes a driving assembly, which is connected to any one of the racks 1 to drive the conveying belt to rotate relative to the plurality of racks 1 to convey the material.

[0030] The lifting assembly 2 is provided on any rack 1, the lower end of the lifting assembly 2 can abut against the ground, and the distance between the lower end of the lifting assembly 2 and the rack 1 is adjustable, and the lifting assembly 2 is adapted to lift part of the racks 1 to a distance from the ground to perform ground work at the distance.

[0031] Specifically, the lower end of the lifting assembly 2 abuts against the floor surface, by adjusting the distance between the lower end of the lifting assembly 2 and the rack 1, the lifting assembly 2 can lift the rack 1 connected with the lifting assembly 2, so that part of the rack 1 has a set distance from the ground, thereby facilitating the repair of the counter-inverted arch of the roadway 01 or other ground operations within the set distance, and the lifting assembly 2 does not affect the rotation of the conveyor belt when lifting part of the rack 1.

[0032] The conveyor system of the embodiment of the present application can perform ground operations on the lower side of the conveyor system without stopping the conveyor belt, so that the conveyor system of the embodiment of the present application has the advantages of facilitating the repair of the counter-inverted arch during operation and improving the efficiency of roadway repair.

[0033] In some embodiments, the plurality of racks 1 includes a first section 101, a second section 102, and a third section 103, the second section 102 is connected between the first section 101 and the third section 103, the first section 101 includes at least one rack 1, the second section 102 includes at least one rack 1, the third section 103 includes at least one rack 1, the lifting assembly 2 includes a first assembly 201 and a second assembly 202, the first assembly 201 is arranged on the first section 101, the second assembly 202 is arranged on the third section 103, and the first assembly 201 and the second assembly 202 are adapted to lift the second section 102 and make the first section 101 and the third section 103 have a slope.

[0034] Specifically, the plurality of racks 1 respectively form the first section 101, the second section 102, and the third section 103, the plurality of racks 1 in the first section 101 do not rotate relative to each other, the plurality of racks 1 in the second section 102 do not rotate relative to each other, the plurality of racks 1 in the third section 103 do not rotate relative to each other, the first section 101 is located on the front side of the second section 102, the third section 103 is located on the rear side of the second section 102, the first section 101 is swingable relative to the second section 102, the second section 102 is swingable relative to the third section 103, and the lifting assembly 2 has two, which are the first assembly 201 and the second assembly 202, the first assembly 201 is arranged on the rack 1 at one end of the first section 101 close to the second section 102, and the second assembly 202 is arranged on the rack 1 at one end of the third section 103 close to the second section 102.

[0035] Thus, when the first assembly 201 and the second assembly 202 increase in length in the up-down direction to respectively lift one end of the first section 101 close to the second section 102 and one end of the third section 103 close to the second section 102, the plurality of carriages 1 in the second section 102 are also lifted to a distance of a set interval from the ground, so as to facilitate the anti-invert arch repair work or other bottom surface work on the ground of the roadway 01 on the lower side of the second section 102, and the first section 101 and the third section 103 have slopes to facilitate the continuous work of the conveyor belt after the second section 102 is lifted, thereby improving the efficiency of roadway repair.

[0036] In some embodiments, the lifting assembly 2 includes a third assembly 203 and a fourth assembly 204, the third assembly 203 is arranged at one end of the first section 101 away from the second section 102, the first assembly 201 is arranged at one end of the first section 101 close to the second section 102, the fourth assembly 204 is arranged at one end of the third section 103 away from the second section 102, and the second assembly 202 is arranged at one end of the third section 103 close to the second section 102, when the first assembly 201 and the second assembly 202 lift the second section 102, the length size of the third assembly 203 or the length size of the fourth assembly 204 is smaller than the length size of the first assembly 201 or the length size of the second assembly 202.

[0037] Specifically, the lifting assembly 2 has four, including the first assembly 201, the second assembly 202, the third assembly 203 and the fourth assembly 204, the first assembly 201 and the third assembly 203 are respectively located at two ends of the first section 101, and the first assembly 201 is close to the second section 102, the second assembly 202 and the fourth assembly 204 are respectively located at two ends of the third section 103, and the second assembly 202 is close to the second section 102.

[0038] Thus, the third assembly 203 is used to adjust the height of the other end of the first section 101 when the first assembly 201 lifts one end of the first section 101 close to the second section 102, to reduce the slope of the first section 101 and facilitate the continuous work of the conveyor belt, and the fourth assembly 204 is used to adjust the height of the other end of the third section 103 when the second assembly 202 lifts one end of the third section 103 close to the second section 102, to reduce the slope of the third section 103 and facilitate the continuous work of the conveyor belt.

[0039] In some embodiments, the conveying system includes a plurality of connecting oil cylinders 3, one end of the connecting oil cylinder 3 is rotatably connected with one of any two adjacent carriages 1, the other end of the connecting oil cylinder 3 is rotatably connected with the other of the two adjacent carriages 1, and the length of the connecting oil cylinder 3 is adjustable to enable the two adjacent carriages 1 to swing relative to each other in the height direction.

[0040] Specifically, the connecting oil cylinder 3 is located between two adjacent frames 1, and the connecting oil cylinder 3 and the two frames 1 connected thereto are rotatably connected, and the rotation axis of the connecting oil cylinder 3 relative to the frame 1 extends along the width direction of the roadway 01, and the connection between the connecting oil cylinder 3 and the two frames 1 connected thereto has a set interval, and when the length of the connecting oil cylinder 3 changes, the two frames 1 connected thereto rotate relative to each other.

[0041] Therefore, the connecting oil cylinder 3 is a self-suction self-locking oil cylinder, and when the lifting assembly 2 lifts part of the frame 1, the angle between the two adjacent frames 1 changes, and the length of the connecting oil cylinder 3 can change to adapt to the angle change between the two frames 1 connected thereto.

[0042] In some embodiments, the frame 1 includes an upper cross beam 11 and a lower cross beam 12, the upper cross beam 11 and the lower cross beam 12 extend along the length direction of the frame 1, the length dimension of the upper cross beam 11 is larger than that of the lower cross beam 12, and the upper cross beams 11 of any two adjacent frames 1 are rotatably connected, and the connecting oil cylinder 3 is connected between the lower cross beams 12 of any two adjacent frames 1.

[0043] Specifically, the upper cross beam 11 and the lower cross beam 12 are arranged in parallel, and the upper cross beam 11 is symmetrical along the width direction of the frame 1, and the lower cross beam 12 is symmetrical along the width direction of the frame 1, so that the length of one end of the upper cross beam 11 extending out of one end of the lower cross beam 12 is the same as the length of the other end of the upper cross beam 11 extending out of the other end of the lower cross beam 12, so that the frame 1 is symmetrical along its length direction, and the structure of both ends of the frame 1 is the same.

[0044] Therefore, the upper cross beams 11 of the two connected frames 1 are connected by hinges, so that the two adjacent frames 1 can swing relative to each other, the connecting oil cylinder 3 is arranged between the lower cross beams 12 of the two adjacent frames 1, and one end of the connecting oil cylinder 3 is rotatably connected to the lower cross beam 12 of one of the two adjacent frames 1, and the other end of the connecting oil cylinder 3 is rotatably connected to the lower cross beam 12 of the other of the two adjacent frames 1, and the length dimension of the lower cross beam 12 is smaller than that of the upper cross beam 11 to generate an interval between the two adjacent frames 1 to install the connecting oil cylinder 3.

[0045] In some embodiments, the lifting assembly 2 comprises a first driver 21, a second driver 22 and a base 23, the first driver 21 is rotatably connected with the upper crossbeam 11, a free end of the first driver 21 is rotatably connected with the base 23, and the distance between the free end of the first driver 21 and the position where the first driver 21 is connected with the upper crossbeam 11 is adjustable, the second driver 22 is rotatably connected with the lower crossbeam 12, and the position where the first driver 21 is connected with the upper crossbeam 11 and the position where the second driver 22 is connected with the lower crossbeam 12 are spaced apart along the length direction of the rack 1, a free end of the second driver 22 is rotatably connected with the base 23, and the distance between the free end of the second driver 22 and the position where the second driver 22 is connected with the lower crossbeam 12 is adjustable.

[0046] Specifically, the first driver 21 and the second driver 22 are telescopic oil cylinders, the fixed end of the first driver 21 is rotatably connected with the upper crossbeam 11, and the rotation axis between the fixed end of the first driver 21 and the upper crossbeam 11 extends along the width direction of the rack 1, the free end of the first driver 21 is slidable relative to the fixed end of the first driver 21 to change the length of the first driver 21, the free end of the first driver 21 is rotatably connected with the base 23, and the rotation axis between the free end of the first driver 21 and the base 23 extends along the width direction of the rack 1;

[0047] the fixed end of the second driver 22 is rotatably connected with the lower crossbeam 12, and the rotation axis between the fixed end of the second driver 22 and the lower crossbeam 12 extends along the width direction of the rack 1, the free end of the second driver 22 is slidable relative to the fixed end of the second driver 22 to change the length of the second driver 22, the free end of the second driver 22 is rotatably connected with the base 23, and the rotation axis between the free end of the second driver 22 and the base 23 extends along the width direction of the rack 1.

[0048] The first driver 21 is arranged at the front end of the second driver 22, and the connection position between the fixed end of the first driver 21 and the upper crossbeam 11 is located at the front side of the connection position between the fixed end of the second driver 22 and the lower crossbeam 12, and the connection position between the free end of the first driver 21 and the base 23 is located at the front side of the connection position between the free end of the second driver 22 and the base 23.

[0049] Thus, a planar four-bar linkage mechanism is formed between the first driver 21, the rack 1, the second driver 22 and the base 23, the first driver 21 and the second driver 22 form two rocker arms of the planar four-bar linkage mechanism, the base 23 forms a connecting rod of the planar four-bar linkage mechanism, and the first driver 21 and the second driver 22 are telescopic, on the one hand, the first driver 21 and the second driver 22 can lift the rack 1, on the other hand, the first driver 21 and the second driver 22 can cooperate with each other to make the angle between the extension direction of the base 23 and the extension direction of the rack 1 the same as the angle between the extension direction of the rack 1 and the extension direction of the ground of the roadway 01, so as to adapt to the slope of the rack 1 in the roadway 01.

[0050] In some embodiments, the lifting assembly 2 further comprises a sliding shoe 24, the sliding shoe 24 comprises a deviation rectifying assembly and a sliding plate 242, the deviation rectifying assembly is connected between the sliding plate 242 and the base 23, and the deviation rectifying assembly enables the sliding plate 242 to slide relative to the base 23 in the width direction of the conveying system, so as to rectify deviation in the width direction of the conveying system when the conveying system slides.

[0051] Specifically, the sliding shoe 24 is arranged at the lower end of the base 23, the bottom of the sliding shoe 24 is provided with the sliding plate 242, the bottom of the sliding plate 242 is provided with a plurality of protruding portions 2421 extending along the length direction of the roadway 01, and the plurality of protruding portions 2421 are arranged in the width direction of the roadway 01 at intervals, so as to reduce the friction between the sliding shoe 24 and the floor of the roadway 01, and facilitate the sliding of the conveying system of the embodiment of the present application in the roadway 01.

[0052] The deviation rectifying assembly is arranged between the sliding plate 242 and the base 23, when the conveying system of the embodiment of the present application moves in the roadway 01 and deviates from the axis of the roadway 01, the deviation rectifying assembly drives the sliding plate 242 to slide relative to the base 23 in the opposite direction of the deviation of the conveying system, so as to enable the conveying system of the embodiment of the present application to move along the axis of the roadway 01 in the roadway 01.

[0053] In some embodiments, the lifting assembly 2 comprises two first drivers 21, two second drivers 22, the two first drivers 21 are arranged opposite to each other in the width direction of the conveying system, the two second drivers 22 are arranged opposite to each other in the width direction of the conveying system, and the deviation rectifying assembly comprises a third driver 241, the third driver 241 comprises a first portion 2412 and a second portion 2411, the first portion 2412 extends in the width direction of the conveying system and is connected with the base 23, the second portion 2411 is slidable relative to the first portion 2412 in the width direction of the conveying system and is connected with the sliding plate 242 to drive the sliding plate 242 to slide in the width direction of the conveying system.

[0054] Specifically, the lifting assembly 2 is symmetrically arranged in the width direction of the conveying system of the embodiment of the present application to increase the stability of the lifting assembly 2 supporting the rack 1, the third driver 241 is connected between the base 23 and the sliding plate 242 to drive the sliding plate 242 to slide relative to the base 23 in the width direction of the rack 1, thereby correcting the movement of the conveying system of the embodiment of the present application in the roadway 01.

[0055] In some embodiments, the lifting assembly 2 further comprises a moving wheel 25 arranged at the lower end of the base 23, and the moving wheel 25 is rotatable relative to the base 23 to enable the conveying system to move along its length direction, and the moving wheel 25 is provided in plurality and arranged at intervals along the extension direction of the conveying system.

[0056] Specifically, the rotation axis of the moving wheel 25 extends in the width direction of the rack 1, on the one hand, when the conveying system of the embodiment of the present application moves in the roadway 01, the moving wheel 25 changes the friction between the lifting assembly 2 and the ground into rolling friction to reduce the friction coefficient between the lifting assembly 2 and the ground, facilitating the movement of the conveying system of the embodiment of the present application in the roadway 01, on the other hand, when the floor of the roadway 01 is uneven, the moving wheel 25 can roll on the surface of the floor of the roadway 01 to avoid obstacles, avoiding the influence of the uneven floor of the roadway 01 on the movement of the conveying system of the embodiment of the present application in the roadway 01.

[0057] In some embodiments, the conveying system comprises a safety chain adapted to be connected between the rack 1 and the roof of the roadway 01 after part of the rack 1 is lifted by the lifting assembly 2 to prevent the rack 1 from falling.

[0058] Specifically, when the lifting assembly 2 lifts part of the rack 1, one end of the safety chain is connected to the lifted rack 1, and the other end of the safety chain is connected to the roof of the roadway 01, and the safety chain can effectively reduce the axial load of the first driver 21 and the second driver 22 of the lifting assembly 2 when the conveying belt continuously works, avoiding fatigue failure of the first driver 21 and the second driver 22.

[0059] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0060] In addition, the terms "first", "second", etc. are used only for the purpose of description and do not imply or imply relative importance or imply the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0063] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification and the features of different embodiments or examples without contradiction.

[0064] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and the changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A delivery system characterized by, The application relates to a machine frame, which comprises: a plurality of machine frames, the machine frames being connected in sequence and capable of swinging relative to each other, so that any two adjacent machine frames can have a slope; a conveying belt, which is arranged on the outer circumferential side of the machine frames and is capable of rotating relative to the machine frames; a lifting assembly, which is arranged on any machine frame, the lower end of the lifting assembly being capable of abutting the ground, the distance between the lower end of the lifting assembly and the machine frame being adjustable, and the lifting assembly being suitable for lifting part of the machine frame to a distance from the ground to perform ground work at the distance; a plurality of connecting oil cylinders, one end of the connecting oil cylinder being rotatably connected to one of any two adjacent machine frames, the other end of the connecting oil cylinder being rotatably connected to the other of any two adjacent machine frames, and the length of the connecting oil cylinder being adjustable so that the two adjacent machine frames can swing relative to each other in the height direction; the machine frame comprises an upper cross beam and a lower cross beam, the upper cross beam and the lower cross beam extending along the length direction of the machine frame, the length of the upper cross beam being larger than the length of the lower cross beam, the upper cross beams of any two adjacent machine frames being rotatably connected, and the connecting oil cylinder being connected between the lower cross beams of any two adjacent machine frames; the lifting assembly comprises a first driver, a second driver and a base, the first driver being rotatably connected to the upper cross beam, the free end of the first driver being rotatably connected to the base, the distance between the free end of the first driver and the connection position of the first driver and the upper cross beam being adjustable, the second driver being rotatably connected to the lower cross beam, the connection position of the first driver and the upper cross beam and the connection position of the second driver and the lower cross beam being spaced apart in the length direction of the machine frame, the free end of the second driver being rotatably connected to the base, and the distance between the free end of the second driver and the connection position of the second driver and the lower cross beam being adjustable.

2. The delivery system of claim 1, wherein, The machine frame comprises a first section, a second section and a third section, the second section being connected between the first section and the third section, the first section comprising at least one machine frame, the second section comprising at least one machine frame, the third section comprising at least one machine frame, the lifting assembly comprising a first assembly and a second assembly, the first assembly being arranged on the first section, the second assembly being arranged on the third section, and the first assembly and the second assembly being suitable for lifting the second section and making the first section and the third section have a slope.

3. The delivery system of claim 2, wherein, The lifting assembly comprises a third assembly and a fourth assembly, the third assembly being arranged on one end of the first section away from the second section, the first assembly being arranged on one end of the first section close to the second section, the fourth assembly being arranged on one end of the third section away from the second section, and the second assembly being arranged on one end of the third section close to the second section, the length of the third assembly or the length of the fourth assembly being smaller than the length of the first assembly or the length of the second assembly when the first assembly and the second assembly lift the second section.

4. The delivery system of claim 1, wherein, The lifting assembly further comprises a sliding shoe, the sliding shoe comprising a deviation rectifying assembly and a sliding plate, the deviation rectifying assembly being connected between the sliding plate and the base, the deviation rectifying assembly allowing the sliding plate to slide relative to the base along the width direction of the conveying system to rectify deviation in the width direction of the conveying system when the conveying system slides.

5. The delivery system of claim 4, wherein, The lifting assembly comprises two first drives, two second drives, the two first drives being oppositely arranged along the width direction of the conveying system, the two second drives being oppositely arranged along the width direction of the conveying system, the deviation rectifying assembly comprising a third drive, the third drive comprising a first part and a second part, the first part extending along the width direction of the conveying system and being connected with the base, the second part being slidable relative to the first part along the width direction of the conveying system and being connected with the sliding plate to drive the sliding plate to slide along the width direction of the conveying system.

6. The delivery system of claim 1, wherein, The lifting assembly further comprises a moving wheel, the moving wheel being arranged at the lower end of the base and being rotatable relative to the base to allow the conveying system to move along its length direction, the moving wheel being provided in plurality, the plurality of moving wheels being arranged at intervals along the extension direction of the conveying system.

7. The delivery system of claim 1, wherein, A safety chain is provided, the safety chain being adapted to be connected between the rack and the roof of the roadway after the rack is lifted by the lifting assembly to prevent the rack from falling.

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