Modularized flexible wheel type belt conveyor

Abstract

The modularized flexible wheel type belt conveyor comprises a vehicle head arranged on the left side, a plurality of modularized vehicle bodies are hinged to the right side of the vehicle head, the modularized vehicle bodies are sequentially hinged end to end to form an inter-module connecting structure, and each modularized vehicle body comprises a front axle and a rear axle which are arranged on the left side and the right side respectively. Steering parts are arranged on the front and rear sides of the lower ends of the front axle and the rear axle respectively, wheels are arranged at the lower end of each steering part, and the steering parts are rotationally connected with the corresponding front axle and rear axle along the vertical axis; a connecting part is arranged between the front axle and the rear axle and comprises a front traction structure and a rear traction structure, the left end and the right end of the front traction structure are hinged to the front end of the front axle and the front end of the rear axle respectively, and the left end and the right end of the rear traction structure are hinged to the rear end of the front axle and the rear end of the rear axle respectively. According to the invention, curve transportation can be realized under the condition that only the vehicle head is used for traction.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, and in particular to a modular flexible wheel belt conveyor. Background Art

[0002] At present, with the continuous development of coal mining technology, more and more equipment are used in the coal mining construction process. Among them, the transportation of excavated materials is mainly achieved by chutes, telescopic belt conveyors and transport belt conveyors. Since these three types of equipment cannot achieve turning transportation, when excavating the working face along the trench, it is necessary to install the chute first, and use the chute and the transport belt conveyor of the transport lane to relay to achieve the outward transportation of materials. Since the length of the chute is not adjustable, after excavating a certain distance, the chute needs to be withdrawn and the telescopic belt conveyor is installed; when cutting and excavating, the chute also needs to be installed and withdrawn, so that during the operation of each work shift, the installation and disassembly of equipment takes up a lot of time, resulting in less effective excavation time, which is not conducive to improving the excavation efficiency.

[0003] The applicant is aware of a self-moving flexible belt conveyor (CN 109969683 A), which includes a movable head station and a movable tail station. The self-moving flexible belt conveyor also includes at least two middle movable modules, multiple connecting rods, a traction device, multiple bottom movable mechanisms and tracks. The movable head station, the movable modules and the movable tail station are hinged in sequence head to tail through multiple connecting rods. The movable head station, the movable tail station and the middle movable module are all rollingly connected to the track laid on the ground through the bottom movable mechanism, and the traction device is respectively connected to the movable head station and the movable tail station through two steel ropes.

[0004] However, the above technology has at least the following technical problems: 1. The movable tail station uses the extrusion force of the track on the wheel to turn, which increases the wear of the wheel and is not conducive to the maintenance of the wheel; 2. The turning radius of the above equipment is large, which is not suitable for narrow curves; thus, the application scope of the above equipment is reduced. Summary of the invention

[0005] The purpose of the present invention is to provide a modular flexible wheel belt conveyor, which can realize curved transportation with only the front of the vehicle for traction. At the same time, during the curved transportation process, the traction structure is used to drive the wheels to rotate toward the front of the vehicle, so that the turning radius is reduced, which is conducive to transportation in narrow channels.

[0006] The present invention adopts the following technical solutions: A modular flexible wheel belt conveyor comprises a front end arranged on the left side, a plurality of modular car bodies are hinged on the right side of the front end, the plurality of modular car bodies are hinged in sequence head to tail, each modular car body comprises a front axle and a rear axle respectively arranged on the left and right sides, a steering part is respectively arranged on the front and rear sides of the lower ends of the front axle and the rear axle, a wheel is arranged at the lower end of each group of steering parts, and the steering part is rotatably connected with the corresponding front axle and rear axle along a vertical axis; a connecting part is arranged between the front axle and the rear axle, the connecting part comprises a front traction structure and a rear traction structure, the left and right ends of the front traction structure are respectively hinged to the front end of the front axle and the front end of the rear axle, and the left and right ends of the rear traction structure are respectively hinged to the rear end of the front axle and the rear end of the rear axle; a steering drive part is also arranged on the inner side of the front traction structure and the rear traction structure, and the steering drive part is used to drive the steering part to rotate along the vertical axis within a set range; a supporting part is also arranged on the upper ends of the front axle and the rear axle, and the upper side of the supporting part is fixedly connected to the flexible conveyor belt.

[0007] Furthermore, the right end face of the front of the vehicle is fixedly connected to an L-shaped trailer hook, and the L-shaped trailer hook includes a horizontally arranged transverse brace and a vertical brace, the left end of the transverse brace fixes the front of the vehicle, and the right end fixes the lower part of the vertical brace, and a spherical anti-detachment joint is also fixed on the upper part of the vertical brace; a first support column is vertically fixed at the lower end of the front axle, and the first support column is connected to the vertical brace through a first connecting plate, and a left mounting hole and a right mounting hole are respectively opened at the left and right ends of the first connecting plate, and corresponding left mounting holes and right mounting holes are respectively penetrated by the vertical brace and the first support column, and the vertical brace and the first support column are rotatably connected to the corresponding left mounting hole and right mounting hole respectively.

[0008] Furthermore, the front axle is a rectangular parallelepiped structure arranged horizontally along the front and rear, and a limit block is fixedly arranged on the upper end surface of the front axle. The upper end surface of the limit block is provided with an arc-shaped limit groove and is in close contact with the lower end surface of the flexible conveyor belt.

[0009] Furthermore, a cylindrical outer connecting pin is fixedly provided on the front and rear sides of the upper end face of the front axle, and a rotating connection hole is vertically opened on the front and rear sides of the lower end face of the front axle; the rear axle is arranged correspondingly to the left and right sides of the front axle, and the rear axle and the front axle have the same structure; the steering part includes a rotating column arranged corresponding to the rotating connection hole, the rotating column and the front axle are rotatably connected through the rotating connection hole, a wheel bracket is fixedly provided at the lower end of the rotating column, a wheel axle is horizontally passed through the lower end of the wheel bracket along the front and rear direction, the wheel axle is coaxially arranged with the wheel and is rotatably connected with the wheel bracket; the left and right ends of the front traction structure are respectively mounted on the cylindrical outer connecting pins arranged on the upper surface of the front end of the front axle and the rear axle, and the left and right ends of the front traction structure are rotatably connected to the corresponding front end of the front axle and the rear axle by means of the cylindrical outer connecting pins, the left and right ends of the rear traction structure are respectively mounted on the cylindrical outer connecting pins arranged on the upper surface of the rear end of the front axle and the rear axle, and the left and right ends of the rear traction structure are rotatably connected to the rear end of the front axle and the rear axle by means of the cylindrical outer connecting pins.

[0010] Furthermore, the front traction structure includes two groups of traction rods arranged on the left and right, and the inner ends of the two groups of traction rods are respectively fixed with inner connecting rings, the two groups of inner connecting rings are coaxially arranged up and down, and the two groups of inner connecting rings are coaxially sleeved with the same group of inner connecting pins, and each group of inner connecting rings is rotatably connected to the inner connecting pins; the outer ends of the two groups of traction rods are respectively fixed with outer connecting rings, the two groups of outer connecting rings are coaxially sleeved and fixed on the corresponding outer connecting pins on the upper end surfaces of the front axle and the rear axle, and the two groups of outer connecting rings are rotatably connected to the corresponding two groups of outer connecting pins, and the rear traction structure has the same structure as the front traction structure and is symmetrically arranged front and back; the two groups of inner connecting rings on the rear traction structure and the front traction structure are always on the inner side of the two groups of outer connecting rings.

[0011] Furthermore, the steering drive unit includes two groups of first telescopic rods arranged front and rear, the left ends of the two groups of first telescopic rods are fixed on the same group of first driving rings, the first driving ring is sleeved with a first driving pin, the first driving pin is arranged up and down and the upper end is fixed with the first driving rod, the first driving rod is arranged front and back and the front and rear ends of the first driving rod are respectively connected to the vertically arranged first connecting rod along the radial direction, the front and rear two groups of first connecting rods are respectively inserted into the second connecting rods arranged horizontally on the left and right and are rotatably connected to the second connecting rods, and the left ends of the front and rear two groups of second connecting rods are respectively fixedly connected to the wheel brackets at the front and rear ends; the right ends of the two groups of first telescopic rods are respectively sleeved with corresponding inner connecting pins and are rotatably connected to the inner connecting pins.

[0012] Furthermore, the steering drive unit also includes two groups of second telescopic rods, the right ends of the two groups of second telescopic rods are fixed on the same second driving ring, the second driving ring is sleeved with a second driving pin, the second driving pin is arranged up and down and the upper end is fixed with the second driving rod, the second driving rod is arranged front and back and the front and rear ends of the second driving rod are respectively connected to the vertically arranged third connecting rod along the radial direction, the front and rear two groups of third connecting rods are respectively inserted into the fourth connecting rods arranged horizontally on the left and right and are rotatably connected to the fourth connecting rod, the right ends of the front and rear two groups of third connecting rods are fixedly connected to the wheel brackets at the front and rear ends respectively; the left ends of the two groups of second telescopic rods are respectively sleeved with two groups of inner connecting pins and are rotatably connected to the inner connecting pins; the first telescopic rod includes a conduit with an opening at one end, a guide rod is coaxially inserted into the conduit along the open end and the conduit is slidably connected to the guide rod, a damping spring is also arranged between the inner end surface of the guide rod and the inner bottom surface of the conduit, and the first telescopic rod has the same structure as the second telescopic rod.

[0013] Furthermore, the supporting part includes rollers arranged at the front and rear ends of the limit block, the outer end of each group of rollers is inclined at the top and the lower end is inclined at the bottom, and a support rod is coaxially inserted in each group of rollers, the support rod is rotatably connected to the roller, and the circumferential surface of the roller is always in close contact with the front and rear sides of the flexible conveyor belt; a first horizontal axis is radially passed through the upper end of each group of support rods, and the lower ends of the two groups of support rods are respectively rotatably connected to the front and rear ends of the limit block; the first horizontal axis is rotatably connected to the upper end of the support rod; the first horizontal axis is fixedly connected to the roller posture adjustment structure arranged on the front axle.

[0014] Furthermore, a movable through slot is provided in the middle part of the front axle, and the movable through slot is horizontally arranged on the left and right sides, and the top walls at the front and rear ends of the movable through slot are respectively provided with accommodating through slots; the posture adjustment structure includes two movable blocks arranged at the front and rear ends of the movable through slot along the left and right directions, and a second horizontal axis is inserted in each group of movable blocks along the left and right directions, and the left and right ends of each second horizontal axis are respectively radially penetrated by corresponding vertical axes; the two vertical axes are arranged up and down, and the lower ends of the two vertical axes are respectively rotatably connected to the left and right ends of the corresponding second horizontal axes, and the upper ends of the two vertical axes are respectively fixedly connected to the left and right ends of the corresponding first horizontal axes; by setting a support rod with a set length, the second horizontal axes on both sides are located on the inner side of the corresponding first horizontal axis.

[0015] Furthermore, a compression spring is arranged between the two groups of corresponding front and rear moving blocks, and the compression spring is always in a compressed state; a limiting column is arranged in the middle of the moving block, and the limiting column is in the accommodating groove and is slidably arranged with the accommodating groove, and a limiting column driving disk is arranged on the outer side of each group of limiting columns, and the limiting column driving disk is tightly attached to the limiting column in the circumferential direction; the external connecting pin is eccentrically inserted into the limiting column driving disk and is rotatably connected with the limiting column driving disk, the limiting column driving disk is fixed to the lower end surface of the external connecting ring, and the two groups of limiting column driving disks are symmetrically arranged along the front and rear ends of the front axle.

[0016] The present invention realizes flexible connection of the modular vehicle body by setting the front traction structure and the rear traction structure, and can sense the change of the steering through the change of the tension force of the front traction structure and the rear traction structure; By setting the support part, the safe transportation of the articles on the flexible conveyor belt is ensured, and further by setting the roller posture adjustment structure and adjusting the posture of the flexible conveyor belt, the safety of transportation is ensured; By arranging the support part steering drive part, the left and right wheels are placed in the arc of the curve under the adjustment of the steering drive part, thus ensuring the stability of the curve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the vehicle head in the present invention; Figure 2 It is a structural schematic diagram of the front axle in the present invention; Figure 3 It is a schematic diagram of the structure of the L-shaped trailer hook in the present invention; Figure 4 It is a structural schematic diagram of the wheel in the present invention; Figure 5 It is a structural schematic diagram of the vertical support in the present invention; Figure 6 is a schematic structural diagram of the first connecting plate in the present invention; Figure 7 It is a structural schematic diagram of the cross brace in the present invention; Figure 8 It is a structural schematic diagram of the wheel bracket in the present invention; Fig. 9 It is a schematic structural diagram of the first supporting column in the present invention; Fig.10 It is a structural schematic diagram of the first horizontal axis in the present invention; Fig.11 It is a schematic diagram of the structure of the damping spring in the present invention; Fig.12 for Fig.10 A is an enlarged schematic diagram.

[0018] In the figure, 1, front of the vehicle; 2, modular vehicle body; 3, front axle; 4, rear axle; 5, front traction structure; 6, rear traction structure; 7, L-shaped trailer hook; 8, horizontal support; 9, vertical support; 10, first connecting plate; 11, first supporting column; 12, external connecting pin; 13, rotating connecting hole; 14, wheel; 15, rotating column; 16, wheel bracket; 17, traction rod; 18, internal connecting ring; 19, internal connecting pin; 20, external connecting ring; 21, first driving ring; 22, first telescopic rod; 23, second telescopic rod; 24, second supporting column; 25, second connecting plate; 26, Limit block; 27, first drive pin; 28, first drive rod; 29, first connecting rod; 30, second connecting rod; 31, second drive ring; 32, second drive pin; 33, second drive rod; 34, third connecting rod; 35, fourth connecting rod; 36, guide tube; 37, guide rod; 38, damping spring; 39, roller; 40, support rod; 41, first horizontal axis; 42, movable through groove; 43, accommodating through groove; 44, movable block; 45, limit column; 46, second horizontal axis; 47, vertical axis; 48, limit column drive disk; 49, compression spring; 50, flexible conveyor belt. DETAILED DESCRIPTION

[0019] like Figures 1 to 12As shown, a modular flexible wheel belt conveyor described in the present invention includes a front end 1 arranged on the left side, and a plurality of modular car bodies 2 are hinged on the right side of the front end 1. The plurality of modular car bodies 2 are hinged in sequence from head to tail to form an inter-module connection structure, and each modular car body 2 includes a front axle 3 and a rear axle 4 respectively arranged on the left and right sides, and a steering part is respectively arranged on the front and rear sides of the lower ends of the front axle 3 and the rear axle 4. A wheel 14 is arranged at the lower end of each group of steering parts, and the steering part is rotatably connected with the corresponding front axle 3 and the rear axle 4 along the vertical axis; a connecting part is arranged between the front axle 3 and the rear axle 4, and the connecting part includes a front traction structure 5 and a rear traction structure 6, and the left and right ends of the front traction structure 5 are respectively hinged to the front end of the front axle 3 and the front end of the rear axle 4, and the left and right ends of the rear traction structure 6 are respectively hinged to the rear end of the front axle 3 and the rear end of the rear axle 4; a steering drive part is also arranged on the inner side of the front traction structure 5 and the rear traction structure 6, and the steering drive part is used to drive the steering part to rotate along the vertical axis within a set range; a support part is also arranged on the upper end of the front axle 3 and the rear axle 4, and a flexible conveyor belt 50 is fixedly connected to the upper side of the support part.

[0020] After the designated goods are loaded in the flexible conveyor belt 50 at the upper end of the support part, the front vehicle 1 drives the plurality of modular vehicle bodies 2 connected in sequence at the rear to move in a straight line, and the plurality of modular vehicle bodies 2 articulated in sequence follow the front vehicle 1 to move in a straight line under the traction of the front vehicle 1; When the front of the vehicle 1 turns and the modular vehicle body 2 passes through a curve, the flexible conveyor belt 50 bends, that is, the two front wheel groups 14 and the two rear wheel groups 14 fixed under the flexible conveyor belt 50 have a displacement difference, resulting in different degrees of tension in the front traction structure 5 and the rear traction structure 6. The tension drives the steering drive unit arranged on the inner side of the front traction structure 5 and the rear traction structure 6, and the steering drive unit causes the steering drive wheel 14 to deflect toward the direction of the front of the vehicle 1 until it is on the set turning circle, thereby forming a turning posture of the modular vehicle body 2.

[0021] In order to facilitate the articulation of the front of the vehicle 1 and the modular vehicle body 2; in the present invention, the right end face of the front of the vehicle 1 is fixedly connected to the L-shaped trailer hook 7, and the L-shaped trailer hook 7 includes a horizontally arranged cross brace 8 and a vertical brace 9, the left end of the cross brace 8 fixes the front of the vehicle 1, and the right end fixes the lower part of the vertical brace 9, and the upper part of the vertical brace 9 is also fixed with a spherical anti-detachment joint; a first support column 11 is vertically fixedly arranged at the lower end of the front axle 3, and the first support column 11 is connected to the vertical brace 9 through a first connecting plate 10, and the left and right ends of the first connecting plate 10 are respectively provided with a left mounting hole and a right mounting hole, and the vertical brace 9 and the first support column 11 are respectively penetrated with corresponding left mounting holes and right mounting holes, and the vertical support 9 and the first support column 11 are rotatably connected with the corresponding left mounting holes and right mounting holes respectively; when the front of the vehicle 1 needs to be disconnected from the modular body 2, the vertical support 9 is disengaged from the left mounting hole to achieve the disconnection of the front of the vehicle 1 and the modular body 2; a second support column 24 is vertically fixed at the lower end of the rear axle 4, and the second support column 24 is connected to the first support column 11 in the adjacent right modular body 2 through a second connecting plate 25; so as to realize the sequential connection of several modular bodies 2.

[0022] In order to form a stable support for the flexible conveyor belt 50; in the present invention, the front axle 3 is a rectangular parallelepiped structure arranged horizontally along the front and rear, and a limit block 26 is fixedly arranged on the upper end surface of the front axle 3. The upper end surface of the limit block 26 is provided with an arc-shaped limit groove and is close to the lower end surface of the flexible conveyor belt 50; In order to make the modular car body 2 connected with the front of the car 1 in sequence turn with the front of the car 1, that is, the swing posture of the wheel 14 can match the direction of the front of the car 1; in the present invention, cylindrical external connecting pins 12 are fixedly arranged on the front and rear sides of the upper end face of the front axle 3, and rotating holes 13 are vertically opened on the front and rear sides of the lower end face of the front axle 3; the rear axle 4 is arranged corresponding to the left and right of the front axle 3, and the rear axle 4 has the same structure as the front axle 3; the steering part includes a rotating column 15 arranged corresponding to the rotating hole 13, the rotating column 15 is rotatably connected to the front axle 3 through the rotating hole 13, and the lower end of the rotating column 15 is fixedly provided with a wheel bracket 16, and the wheel bracket 1 6, a wheel axle is horizontally passed through the lower end along the front-to-back direction, the wheel axle is coaxially arranged with the wheel 14 and is rotatably connected with the wheel bracket 16; the left and right ends of the front traction structure 5 are respectively sleeved on the cylindrical outer connecting pins 12 arranged on the upper surfaces of the front ends of the front axle 3 and the rear axle 4, and the left and right ends of the front traction structure 5 are respectively rotatably connected with the corresponding front ends of the front axle 3 and the rear axle 4 by means of the cylindrical outer connecting pins 12, and the left and right ends of the rear traction structure 6 are respectively sleeved on the cylindrical outer connecting pins 12 arranged on the upper surfaces of the rear ends of the front axle 3 and the rear axle 4, and the left and right ends of the rear traction structure 6 are respectively rotatably connected with the rear ends of the front axle 3 and the rear axle 4 by means of the cylindrical outer connecting pins 12; that is, the left and right ends of the front traction structure 5 are respectively rotatably connected with the front ends of the front axle 3 and the rear axle 4; the left and right ends of the rear traction structure 6 are respectively rotatably connected with the rear ends of the front axle 3 and the rear axle 4; When the front of the vehicle 1 turns, the front of the vehicle 1 pulls the L-shaped trailer hook 7 set on the right side of the front of the vehicle 1, and the front axle 3 in the modular body 2 hinged with the L-shaped trailer hook 7 moves along with the front of the vehicle 1. At the same time, the moving front axle 3 pulls the wheel bracket 16 rotatably connected to the front axle 3 to swing to adapt to the movement of the front axle 3. The combined force of friction and traction from the ground makes the wheel 14 rotatably connected to the bottom of the wheel bracket 16 on the turning circle of the front of the vehicle 1, and the front axle 3 is connected to the rear axle 4 through the front traction structure 5 and the rear traction structure 6, so that the rear axle 4 repeats the above action to complete the modular body 2 following the front of the vehicle 1 to turn.

[0023] During the turning process of the modular vehicle body 2, since the circumference of the outer circle of the curve is greater than the circumference of the inner circle of the curve, that is, the displacement of the two sets of wheels 14 of the same modular vehicle body 2 on the outer side of the curve is greater than the displacement of the two sets of wheels 14 on the inner side, in order to make the front traction structure 5 and the rear traction structure 6 adapt to the change of the displacement of the wheels 14: In the present invention, the front traction structure 5 includes two groups of traction rods 17 arranged on the left and right, and the inner ends of the two groups of traction rods 17 are respectively fixedly provided with inner connecting rings 18, the two groups of inner connecting rings 18 are coaxially arranged up and down, and the two groups of inner connecting rings 18 are coaxially sleeved with the same group of inner connecting pins 19, and each group of inner connecting rings 18 is rotatably connected to the inner connecting pins 19; the outer ends of the two groups of traction rods 17 are respectively fixedly provided with outer connecting rings 20, the two groups of outer connecting rings 20 are coaxially sleeved and fixed on the corresponding outer connecting pins 12 on the upper end surfaces of the front axle 3 and the rear axle 4, and the two groups of outer connecting rings 20 are rotatably connected to the corresponding two groups of outer connecting pins 12, and the rear traction structure 6 has the same structure as the front traction structure 5 and is symmetrically arranged front and back; in the present invention, the two groups of inner connecting rings 18 on the rear traction structure 6 and the front traction structure 5 are always on the inner side of the two groups of outer connecting rings 20.

[0024] During the turning process of the modular vehicle body 2 of the above structure, as the modular vehicle body 2 is in the curve, the displacement of the two sets of wheels 14 on the outside of the same modular vehicle body 2 is required to be greater than the displacement of the two sets of wheels 14 on the inside. In the present invention, by adjusting the difference in the distance between the outer ends of the two sets of traction rods 17 on the front and rear sides, the displacement of the two sets of wheels 14 on the outside of the curve is greater than the displacement of the two sets of wheels 14 on the inside. At the same time, in order to ensure that the wheels 14 can actively rotate to the side facing the turning direction of the front of the vehicle 1 during the turning process, the probability of the wheels 14 slipping on the ground is reduced. In the present invention, the steering drive unit includes two sets of first telescopic rods 22 arranged front and rear, and the two sets of first telescopic rods 22 are arranged The left ends are all fixed on the same group of first driving rings 21, the first driving rings 21 are sleeved with first driving pins 27, the first driving pins 27 are arranged up and down and the upper end is fixed with a first driving rod 28, the first driving rod 28 is arranged front and back and the front and rear ends of the first driving rod 28 are respectively connected to the vertically arranged first connecting rods 29 in the radial direction, the front and rear two groups of first connecting rods 29 are respectively inserted on the left and right horizontally arranged second connecting rods 30 and are rotatably connected to the second connecting rods 30, and the left ends of the front and rear two groups of second connecting rods 30 are respectively fixedly connected to the wheel brackets 16 at the front and rear ends; the right ends of the two groups of first telescopic rods 22 are respectively sleeved with corresponding inner connecting pins 19 and are rotatably connected to the inner connecting pins 19; During the turning process of the modular vehicle body 2, although the orientation of the wheels 14 arranged under the front axle 3 can be consistent with the moving direction of the vehicle head 1 when driven by the two sets of first telescopic rods 22, its turning radius is large; if the wheels 14 arranged under the rear axle 4 can be swung in the opposite direction to the wheels 14 under the front axle 3, the turning radius of the modular vehicle body 2 can be effectively reduced; In order to achieve the above functions; in the present invention, the steering drive unit also includes two groups of second telescopic rods 23, the right ends of the two groups of second telescopic rods 23 are fixed on the same second driving ring 31, the second driving ring 31 is sleeved with a second driving pin 32, the second driving pin 32 is arranged up and down and the upper end is fixed with the second driving rod 33, the second driving rod 33 is arranged front and back and the front and rear ends of the second driving rod 33 are respectively connected to the vertically arranged third connecting rod 34 in the radial direction, the front and rear two groups of third connecting rods 34 are respectively inserted into the fourth connecting rod 35 arranged horizontally on the left and right and are rotatably connected with the fourth connecting rod 35, and the right ends of the front and rear two groups of third connecting rods 34 are fixedly connected with the wheel brackets 16 at the front and rear ends respectively; the left ends of the two groups of second telescopic rods 23 are respectively sleeved with two groups of inner connecting pins 19 and are both rotatably connected with the inner connecting pins 19; In this embodiment, the first telescopic rod 22 includes a conduit 36 ​​with an opening at one end. A guide rod 37 is coaxially inserted along the open end of the conduit 36 ​​and the conduit 36 ​​is slidably connected to the guide rod 37. A damping spring 38 is also provided between the inner end surface of the guide rod 37 and the inner bottom surface of the conduit 36. The first telescopic rod 22 and the second telescopic rod 23 have the same structure.

[0025] When the modular vehicle body 2 is in a curve, when the right ends of the two sets of first telescopic rods 22 move away from the center of the curve, the first telescopic rod 22 pulls the first driving rod 28 through the first driving pin 27; the first driving rod 28 drives the first connecting rod 29 to move outward, and the second connecting rod 30 rotatably connected to the first connecting rod 29 is driven by the first connecting rod 29 to pull the wheel bracket 16 to rotate outward, so that the wheel axis points to the direction of the center of the curve; Similarly, the left ends of the two sets of second telescopic rods 23 move away from the bending center, and at the same time drive the third connecting rod 34 to move outward, and the fourth connecting rod 35 rotatably connected to the third connecting rod 34 is driven by the third connecting rod 34 to pull the wheel bracket 16 to rotate, so that the bending center moves toward the wheel 14, that is, the turning radius of the modular vehicle body 2 is reduced; However, when the modular vehicle body 2 passes through a curve, if the moving speed of the modular vehicle body 2 remains unchanged, the centrifugal force will increase due to the small turning radius. In addition, since the load on the modular vehicle body 2 is large, the probability of the modular vehicle body 2 tilting when passing through a curve is increased. In order to further reduce the tilt of the modular vehicle body 2 and ensure transportation safety; In the present invention, the support part includes rollers 39 arranged at the front and rear ends of the limit block 26, the outer end of each group of rollers 39 is arranged at the top and the lower end is arranged at the bottom, and a support rod 40 is coaxially inserted in each group of rollers 39, the support rod 40 is rotatably connected with the rollers 39, and the circumference of the rollers 39 is always in close contact with the front and rear sides of the flexible conveyor belt 50; a first transverse axis 41 is radially passed through the upper end of each group of support rods 40, and the lower ends of the two groups of support rods 40 are respectively rotatably connected with the front and rear ends of the limit block 26; the first transverse axis 41 is rotatably connected with the upper end of the support rod 40; the first transverse axis 41 is fixedly connected to the roller posture adjustment structure arranged on the front axle 3; during the cornering process of the modular vehicle body 2, the roller posture adjustment structure drives the inclination angle of the roller 39 to change according to the size of the turning radius; In the present invention, a moving slot 42 is further provided in the middle of the front bridge 3, and the moving slot 42 is horizontally arranged left and right, and the top walls of the front and rear ends of the moving slot 42 are respectively provided with accommodating slots 43; the roller posture adjustment structure includes two moving blocks 44 that are inserted at the front and rear ends of the moving slot 42 along the left and right directions, and a second horizontal axis 46 is inserted in each group of moving blocks 44 along the left and right directions, and the left and right ends of each second horizontal axis 46 are respectively radially penetrated by corresponding vertical axes 47; the two vertical axes 47 are both arranged up and down, and the lower ends of the two vertical axes 47 are respectively rotatably connected to the left and right ends of the corresponding second horizontal axes 46, and the upper ends of the two vertical axes 47 are respectively fixedly connected to the left and right ends of the corresponding first horizontal axes 41; by setting a support rod 40 of a set length, the second horizontal axes 46 on both sides are both located on the inner side of the corresponding first horizontal axis 41; A compression spring 49 is arranged between the two groups of corresponding moving blocks 44 at the front and rear, and the compression spring 49 is always in a compressed state; a limit post 45 is arranged in the middle of the moving block 44, and the limit post 45 is arranged in the accommodating groove 43 and slides with the accommodating groove 43, and a limit post driving disk 48 is arranged on the outer side of each group of limit posts 45, and the limit post driving disk 48 is tightly attached to the limit post 45 in the circumferential direction; the outer connecting pin 12 is eccentrically penetrated on the limit post driving disk 48 and is rotatably connected with the limit post driving disk 48, and the limit post driving disk 48 is fixedly arranged on the lower end surface of the outer connecting ring 20, and the two groups of limit post driving disks 48 are symmetrically arranged along the front and rear ends of the front axle 3. When the driving disk 48 rotates synchronously counterclockwise, the limiting column driving disk 48 set at the front end squeezes the limiting column 45 at the front end backward, and the limiting column driving disk 48 at the rear end moves away from the limiting column 45 at the rear end, the limiting column 45 at the rear end is cancelled, and the limiting column 45 at the rear end moves backward under the action of the clamping spring 49; when the two groups of limiting column driving disks 48 rotate synchronously clockwise, the limiting column driving disk 48 set at the rear end squeezes the limiting column 45 at the rear end forward, and the limiting column driving disk 48 at the front end moves away from the limiting column 45 at the front end, the limiting column 45 at the front end is cancelled, and the limiting column 45 at the front end moves forward under the action of the clamping spring 49.

[0026] In order to further improve the roller posture adjustment effect, in the present invention, the rear axle 4 and the front axle 3 have the same structure, and the roller posture adjustment structure in the rear axle 4 is symmetrically arranged with the roller posture adjustment structure in the front axle 3; When the modular vehicle body 2 passes through a curve and turns forward, the distance between the two groups of outer connecting pins 12 on the rear side increases, that is, the distance between the outer ends of the two groups of traction rods 17 on the rear side increases, and the two groups of traction rods 17 on the rear side respectively drive the corresponding outer connecting rings 20 to rotate counterclockwise; the distance between the two groups of outer connecting pins 12 on the front side decreases, that is, the distance between the outer ends of the two groups of traction rods 17 on the front side decreases, and the two groups of traction rods 17 on the front side respectively drive the corresponding outer connecting rings 20 to rotate counterclockwise, and the limit column driving disk 48 arranged at the front end squeezes the limit column 45 backward, and the limit column driving disk 48 at the rear end moves away from the corresponding limit column 45, compressing the spring 4 9 drives the limiting column 45 to move backward; at the same time, the vertical shaft 47 connected to the front end moving block 44 moves backward, causing the roller 39 arranged at the front end to rotate downward by a set angle; the limiting column driving disk 48 at the front end moves away from the corresponding limiting column 45, and the clamping spring 49 drives the limiting column 45 to move backward, and the vertical shaft 47 connected to the front end moving block 44 moves backward, causing the roller 39 arranged at the front end to rotate upward by a set angle, and the flexible conveyor belt 50 tightly attached to the inner end of the roller 39 is tilted inwardly toward the center of the bend, so that the goods inside the flexible conveyor belt 50 offset the centrifugal force generated by the goods inside the flexible conveyor belt 50 through the component force of gravity.

[0027] When the modular vehicle body 2 turns backward, the distance between the two groups of outer connecting pins 12 on the front side increases, that is, the distance between the outer ends of the two groups of traction rods 17 on the front side increases, and the two groups of traction rods 17 on the front side respectively drive the corresponding outer connecting rings 20 to rotate clockwise, and the distance between the two groups of outer connecting pins 12 on the rear side decreases, that is, the distance between the outer ends of the two groups of traction rods 17 on the rear side decreases, and the two groups of traction rods 17 on the rear side respectively drive the corresponding outer connecting rings 20 to rotate clockwise, and the limit column driving disk 48 arranged at the rear end presses the limit column 45 forward, and the limit column driving disk 48 at the front end moves away from the corresponding limit column 45, and the compression spring 49 drives the limit column 4 5 moves forward; at the same time, the vertical shaft 47 connected to the front moving block 44 moves forward, causing the roller 39 arranged at the front end to rotate upward at a set angle; the front limit column driving disk 48 moves away from the corresponding limit column 45, and the compression spring 49 drives the limit column 45 to move forward, so that the vertical shaft 47 connected to the front moving block 44 moves forward, causing the roller 39 arranged at the front end to rotate upward at a set angle; the flexible conveyor belt 50 tightly attached to the inner end of the roller 39 is tilted inwardly toward the center of the bend, so that the goods inside the flexible conveyor belt 50 offset the centrifugal force generated by the goods inside the flexible conveyor belt 50 through the component force of gravity.

[0028] Therefore, when the modular vehicle body 2 passes through a curve, the centrifugal force generated by the goods inside the flexible conveyor belt 50 when turning is offset by the change in the posture of the flexible conveyor belt 50, thereby avoiding the backward tilting of the supporting part under the action of the centrifugal force, and ensuring safe transportation without reducing the turning speed of the modular flexible wheel belt conveyor.

Claims

1. A modular flexible wheel belt conveyor, characterized in that: It includes a front end arranged on the left side, and a plurality of modular bodies are hinged on the right side of the front end, and the plurality of modular bodies are hinged in sequence from head to tail, and each modular body includes a front axle and a rear axle arranged on the left and right sides respectively, and steering parts are respectively arranged on the front and rear sides of the lower ends of the front axle and the rear axle, and wheels are arranged at the lower ends of each group of steering parts, and the steering parts are rotatably connected with the corresponding front axle and rear axle along the vertical axis; a connecting part is arranged between the front axle and the rear axle, and the connecting part includes a front traction structure and a rear traction structure, and the left and right ends of the front traction structure are respectively hinged to the front end of the front axle and the front end of the rear axle, and the left and right ends of the rear traction structure are respectively hinged to the rear end of the front axle and the rear end of the rear axle; a steering drive part is also arranged on the inner side of the front traction structure and the rear traction structure, and the steering drive part is used to drive the steering part to rotate along the vertical axis within a set range; a supporting part is also arranged on the upper ends of the front axle and the rear axle, and a flexible conveyor belt is fixedly connected to the upper side of the supporting part.

2. The modular flexible wheel belt conveyor according to claim 2, characterized in that: The right end face of the front of the vehicle is fixedly connected to an L-shaped trailer hook, which includes a horizontally arranged transverse brace and a vertical brace. The left end of the transverse brace fixes the front of the vehicle, and the right end fixes the lower part of the vertical brace. A spherical anti-detachment joint is also fixedly arranged on the upper part of the vertical brace. A first support column is vertically fixedly arranged at the lower end of the front axle, and the first support column is connected to the vertical brace through a first connecting plate. A left mounting hole and a right mounting hole are respectively opened at the left and right ends of the first connecting plate. The vertical brace and the first support column are respectively penetrated with corresponding left mounting holes and right mounting holes, and the vertical brace and the first support column are rotatably connected to the corresponding left mounting holes and right mounting holes respectively.

3. The modular flexible wheel belt conveyor according to claim 1, characterized in that: The front bridge is a rectangular parallelepiped structure arranged horizontally along the front and rear, and a limit block is fixedly arranged on the upper end surface of the front bridge. The upper end surface of the limit block is provided with an arc-shaped limit groove and is closely attached to the lower end surface of the flexible conveyor belt.

4. The modular flexible wheel belt conveyor according to claim 3, characterized in that: The front axle upper end face is respectively fixedly provided with cylindrical outer connecting pins on the front and rear sides, and the front axle lower end face is respectively vertically provided with rotating connecting holes on the front and rear sides; the rear axle is correspondingly arranged on the left and right sides of the front axle, and the rear axle and the front axle have the same structure; the steering part comprises a rotating column arranged corresponding to the rotating connecting hole, the rotating column is rotatably connected to the front axle through the rotating connecting hole, a wheel bracket is fixedly arranged at the lower end of the rotating column, a wheel axle is horizontally passed through the lower end of the wheel bracket along the front and rear direction, the wheel axle is coaxially arranged with the wheel and is rotatably connected to the wheel bracket; the left and right ends of the front traction structure are respectively sleeved on the cylindrical outer connecting pins arranged on the upper surfaces of the front ends of the front axle and the rear axle, and the left and right ends of the front traction structure are respectively rotatably connected to the corresponding front ends of the front axle and the rear axle by means of the cylindrical outer connecting pins, and the left and right ends of the rear traction structure are respectively sleeved on the cylindrical outer connecting pins arranged on the upper surfaces of the rear ends of the front axle and the rear axle, and the left and right ends of the rear traction structure are respectively rotatably connected to the rear ends of the front axle and the rear axle by means of the cylindrical outer connecting pins.

5. The modular flexible wheel belt conveyor according to claim 4, characterized in that: The front traction structure includes two groups of traction rods arranged on the left and right, and the inner ends of the two groups of traction rods are respectively fixed with inner connecting rings, the two groups of inner connecting rings are coaxially arranged up and down, and the two groups of inner connecting rings are coaxially sleeved with the same group of inner connecting pins, and each group of inner connecting rings is rotatably connected to the inner connecting pins; the outer ends of the two groups of traction rods are respectively fixed with outer connecting rings, the two groups of outer connecting rings are coaxially sleeved with the corresponding outer connecting pins on the upper end surfaces of the front axle and the rear axle, and the two groups of outer connecting rings are rotatably connected to the corresponding two groups of outer connecting pins, and the rear traction structure has the same structure as the front traction structure and is symmetrically arranged front and back; the two groups of inner connecting rings on the rear traction structure and the front traction structure are always on the inner side of the two groups of outer connecting rings.

6. The modular flexible wheel belt conveyor according to claim 1, characterized in that: The steering drive unit includes two groups of first telescopic rods arranged front and back, the left ends of the two groups of first telescopic rods are fixed on the same group of first driving rings, the first driving ring is sleeved with a first driving pin, the first driving pin is arranged up and down and the upper end is fixed with the first driving rod, the first driving rod is arranged front and back and the front and rear ends of the first driving rod are respectively connected to the vertically arranged first connecting rod along the radial direction, the front and rear two groups of first connecting rods are respectively inserted into the second connecting rods arranged horizontally on the left and right and are rotatably connected to the second connecting rods, the left ends of the front and rear two groups of second connecting rods are respectively fixedly connected to the wheel brackets at the front and rear ends; the right ends of the two groups of first telescopic rods are respectively sleeved with corresponding inner connecting pins and are rotatably connected to the inner connecting pins.

7. The modular flexible wheel belt conveyor according to claim 6, characterized in that: The steering drive unit also includes two groups of second telescopic rods, the right ends of the two groups of second telescopic rods are fixed on the same second driving ring, the second driving ring is sleeved with a second driving pin, the second driving pin is arranged up and down and the upper end is fixed with the second driving rod, the second driving rod is arranged front and back and the front and rear ends of the second driving rod are respectively connected to the vertically arranged third connecting rod along the radial direction, the front and rear two groups of third connecting rods are respectively inserted into the fourth connecting rods arranged horizontally on the left and right and are rotatably connected to the fourth connecting rod, the right ends of the front and rear two groups of third connecting rods are fixedly connected to the wheel brackets at the front and rear ends respectively; the left ends of the two groups of second telescopic rods are respectively sleeved with two groups of inner connecting pins and are rotatably connected to the inner connecting pins; the first telescopic rod includes a conduit with an open end, a guide rod is coaxially inserted into the conduit along the open end and the conduit is slidably connected to the guide rod, a damping spring is also arranged between the inner end surface of the guide rod and the inner bottom surface of the conduit, and the first telescopic rod has the same structure as the second telescopic rod.

8. The modular flexible wheel belt conveyor according to claim 1, characterized in that: The supporting part includes rollers arranged at the front and rear ends of the limit block, the outer end of each group of rollers is arranged at the top and the lower end is arranged at the bottom in an inclined manner, and a support rod is coaxially inserted in each group of rollers, the support rod is rotatably connected to the roller, and the circumference of the roller is always in close contact with the front and rear sides of the flexible conveyor belt; a first horizontal axis is radially passed through the upper end of each group of support rods, and the lower ends of the two groups of support rods are respectively rotatably connected to the front and rear ends of the limit block; the first horizontal axis is rotatably connected to the upper end of the support rod; the first horizontal axis is fixedly connected to the roller posture adjustment structure arranged on the front axle.

9. The modular flexible wheel belt conveyor according to claim 8, characterized in that: A movable through slot is also provided in the middle of the front axle, and the movable through slot is horizontally arranged on the left and right sides, and accommodating through slots are respectively provided on the top walls at the front and rear ends of the movable through slot; the posture adjustment structure includes two movable blocks arranged at the front and rear ends of the movable through slot along the left and right directions, and a second horizontal axis is inserted in each group of movable blocks along the left and right directions, and corresponding vertical axes are respectively radially arranged at the left and right ends of each second horizontal axis; the two vertical axes are arranged up and down, and the lower ends of the two vertical axes are respectively rotatably connected to the left and right ends of the corresponding second horizontal axes, and the upper ends of the two vertical axes are respectively fixedly connected to the left and right ends of the corresponding first horizontal axes; by setting a support rod with a set length, the second horizontal axes on both sides are located on the inner side of the corresponding first horizontal axis.

10. The modular flexible wheel belt conveyor according to claim 9, characterized in that: A compression spring is arranged between the two groups of movable blocks corresponding to the front and rear, and the compression spring is always in a compressed state; a limit post is arranged in the middle of the movable block, the limit post is arranged in the accommodating groove and slides with the accommodating groove, and a limit post driving disk is arranged outside each group of limit posts, and the limit post driving disk is tightly attached to the limit post in the circumferential direction; The outer connecting pin is eccentrically inserted into the limit column driving disk and is rotatably connected to the limit column driving disk. The limit column driving disk is fixed to the lower end surface of the outer connecting ring. The two groups of limit column driving disks are symmetrically arranged along the front and rear ends of the front axle.

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