Vertical flow dividing and converging conveying device and design method of swing connecting rod mechanism of vertical flow dividing and converging conveying device

Abstract

The invention discloses a vertical flow dividing and converging conveying device and a design method of a swing connecting rod mechanism of the vertical flow dividing and converging conveying device. The vertical flow dividing and converging conveying device comprises a supporting frame, a conveying mechanism, the swing connecting rod mechanism and a driving motor. The conveying mechanism comprises a swinging conveying mechanism, an upper-layer conveying mechanism and a lower-layer conveying mechanism; the swing connecting rod mechanism comprises a front-end connecting rod, a front-end bracket, a swing arm assembly, a rear-end connecting rod, a rear-end bracket, a transmission shaft and a transmission connecting rod. The front-end bracket is arranged at the bottom of the swinging conveying mechanism; the two front-end connecting rods are hinged to the two ends of the front-end bracket, and the other ends of the front-end connecting rods are hinged to the swing arm assembly. The rear-end bracket is arranged at the bottom of the upper-layer conveying mechanism; the rear-end connecting rods are hinged to the two ends of the rear-end bracket, and the other ends of the rear-end connecting rods are hinged to the swing arm assembly. The swing arm assembly is rotationally connected with the supporting frame. The transmission connecting rod is hinged to the swing arm assembly. The transmission shaft comprises a driving shaft and a rotating plate; the driving shaft is fixedly connected with one end of the rotating plate; the other end of the rotating plate is hinged with the transmission connecting rod; the driving motor is connected with the supporting frame, and the output end of the driving motor is connected with the driving shaft. The vertical flow dividing and combining conveying device can flexibly and accurately achieve the dividing and combining process.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics conveying equipment, and more specifically to a design method of a vertical split-and-join conveying device. Background Art

[0002] In today's logistics industry, vertical separation and merging conveying devices are widely used in the field of logistics conveying equipment technology because of their simple and flexible structure and relatively easy control.

[0003] In the airport baggage handling system, the vertical diverter and merger is one of the key equipment of the baggage conveying system. The diverter is divided into a horizontal diverter and a vertical diverter, which respectively divide and merge the baggage moving in the horizontal or vertical direction. At present, the vertical diverter and merger conveyor is usually provided with corresponding movable parts in the vertical diverter and merger conveyor, and the diversion or merging of the items on the upper and lower conveyor belts is achieved by the swing of the movable parts. However, the current vertical diverter and merger conveyor is prone to the problem of the movable parts not swinging into place when in use, causing the items to get stuck.

[0004] Therefore, it is an urgent problem for technical personnel in this field to develop a design method for a vertical splitting and merging conveying device and its swing connecting rod mechanism with strong flexibility and high splitting and merging accuracy. Summary of the invention

[0005] In view of this, the present invention provides a design method of a vertical splitting and merging conveying device and a swing connecting rod mechanism thereof, which has strong flexibility and high splitting and merging accuracy.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A vertical separation and merging conveying device, comprising:

[0008] A support frame, which is the main supporting component of the device;

[0009] A conveying mechanism, the conveying mechanism comprising: a swing conveying mechanism for input / output, an upper conveying mechanism for output / input, and a lower conveying mechanism for output / input; the swing conveying mechanism is rotatably connected to the support frame; the upper conveying mechanism is rotatably connected to the support frame, and the lower conveying mechanism is fixedly connected to the support frame;

[0010] The swing-link mechanism comprises: a front-end link, a front-end bracket, a swing arm assembly, a rear-end link, a rear-end bracket, a transmission shaft and a transmission link; the front-end bracket is arranged at the bottom of the swing conveying mechanism; the two front-end links are hinged at the two ends of the front-end bracket, and the other end of the front-end link is hinged to the swing arm assembly; the rear-end bracket is arranged at the bottom of the upper conveying mechanism; the rear-end link is hinged at the two ends of the rear-end bracket, and the other end of the rear-end link is hinged to the swing arm assembly; the swing arm assembly is rotatably connected to the supporting frame; the transmission link is hinged to the swing arm assembly; the transmission shaft comprises: a driving shaft and a rotating plate; one end of the driving shaft and the rotating plate is fixedly connected, and the other end of the rotating plate is hinged to the transmission link;

[0011] A driving motor is connected to the supporting frame, and an output end of the driving motor is connected to the driving shaft.

[0012] The beneficial effect of adopting the above technical solution is that the driving motor in the present invention drives the transmission shaft to rotate, which can then drive the swing link mechanism to swing, so as to realize the up and down swing of the swing conveying mechanism. The swing of the swing conveying mechanism can realize the connection with the upper conveying mechanism or the lower conveying mechanism to realize vertical separation and confluence. Driven by the swing link mechanism, the conveying mechanism can accurately and flexibly realize vertical separation and confluence.

[0013] Preferably, safety protection sliding doors are provided on both sides of the support frame, and the safety protection sliding doors are provided with fixed door nets, sliding door nets and safety switches. The setting of the sliding door nets facilitates the inspection and maintenance of the equipment inside the support frame. The setting of the safety switch ensures that the sliding door nets on the safety protection sliding doors can only be opened when the equipment is shut down and not working, which can improve the safety of use.

[0014] Preferably, an electric control box and a transmission mechanism are provided on the outside of the support frame, and the transmission mechanism and the drive motor are both connected to the electric control box; there are multiple transmission mechanisms, which are respectively connected to the swing conveying mechanism, the upper conveying mechanism and the lower conveying mechanism. The electric control box can control the operation of the transmission mechanism and the drive motor and provide electric energy for them; there are three transmission mechanisms, which respectively control the conveying of the swing conveying mechanism, the upper conveying mechanism and the lower conveying mechanism, and the drive motor controls the swing of the swing connecting rod mechanism.

[0015] Preferably, both ends of the swing arm assembly are rotatably connected to fixed seats, and the fixed seats are fixedly connected to the support frame.

[0016] A design method for a swing link mechanism in a vertical separation and merging conveying device comprises the following steps:

[0017] Step 1: According to the target requirements, determine the structural dimensions of the vertical separation and merging conveyor, the inclination angle of the conveying mechanism in the vertical separation and merging conveyor, the conveying capacity of the vertical separation and merging conveyor, and the baggage clearance between the upper and lower conveying mechanisms. These basic parameters are used as the original parameters for the design of the vertical separation and merging conveyor;

[0018] Step 2: According to the original parameters described in step 1, determine the structural dimensions of the support frame; preliminarily determine the length of the swing conveying mechanism and the height of the input / output conveying surface, the length of the upper conveying mechanism and the height of the upper input / output conveying surface, and the length of the lower conveying mechanism and the height of the lower input / output conveying surface; according to the knowledge of relevant mechanical principles and mechanical design, use the design principle of the planar four-bar linkage to adjust the connection position of the swing link mechanism and the conveying mechanism and the dimensions of their components to ensure that the swing conveying mechanism and the upper conveying mechanism and the lower conveying mechanism overlap at different positions in the vertical direction, and obtain the structure of the swing link mechanism;

[0019] Step 3: Based on the structure obtained in step 2, simplify it into a plane hinge four-bar linkage mechanism to verify whether the obtained structure is a crank rocker mechanism;

[0020] Step 4: Based on the crank-rocker mechanism obtained in step 3, calculate the extreme position angle θ, the swing angle Ψ of the rocker rod, and the stroke speed ratio coefficient K of the crank-rocker mechanism;

[0021] Step 5: Based on the crank-rocker mechanism obtained in step 4, calculate its minimum transmission angle δ min ;

[0022] Step 6: Based on the crank rocker mechanism obtained in step 5 and in combination with the conveying capacity requirements of the vertical separation and merging conveying device described in step 1, determine the conveying speed of the conveying mechanism and perform a stand-alone design of the conveying mechanism;

[0023] Step 7: Perform strength check on the whole machine and its components obtained in step 6, or establish a three-dimensional model of the crank-rocker mechanism obtained for finite element analysis and / or simulation analysis;

[0024] Step 8: Based on the structure obtained in step 7, calculate the power of the reduction motor for the swing arm and conveying mechanism, and select the model;

[0025] Step 9: Design of other components.

[0026] Preferably, the condition for verifying whether the obtained structure is a crank rocker mechanism in step three is that the sum of the lengths of the shortest rod and the longest rod in the four-bar linkage is less than or equal to the sum of the lengths of the other two rods, and one of the connecting rod and the frame in the four-bar linkage must be the shortest rod.

[0027] Preferably, the calculation process of the extreme position angle θ of the crank-rocker mechanism, the swing angle Ψ of the swing rod, and the stroke speed ratio coefficient K in step 4 is as follows:

[0028] (1) Determine the length a of the crank structure, the length b of the connecting rod structure, the length c of the rocker structure, and the length d of the frame body;

[0029] (2) In the crank-rocker mechanism, the acute angle between the crank and the connecting rod when they are in the collinear position twice is the extreme position angle θ, which is calculated as follows:

[0030]

[0031] (3) In the crank rocker mechanism, the angle between the two extreme positions of the rocker is the swing angle Ψ of the rocker arm, which is calculated as follows:

[0032]

[0033] (4) In the crank-rocker mechanism, the stroke speed ratio coefficient is also called the stroke ratio. Usually, the ratio of the average angular velocity of the fast stroke to the slow stroke or the ratio of the fast stroke to the slow stroke time when the follower swings back and forth is called the stroke speed ratio coefficient, denoted by K. Its calculation formula is as follows:

[0034]

[0035] Preferably, the minimum transmission angle δ in step 5 is min The calculation method is as follows:

[0036] During the movement of the crank rocker mechanism, the transmission angle varies with the position of the mechanism. The minimum transmission angle occurs at one of the two positions where the active crank structure and the frame are collinear. The smaller transmission angle of the two positions is the minimum transmission angle δ min , the calculation formula is as follows:

[0037]

[0038] δ min =min(δ1,δ2)

[0039] Preferably, the conveying speed of the conveying mechanism is the key to the continuous, safe and smooth conveying of luggage on the conveying device. The civil aviation industry standard requires that the maximum luggage conveying speed should meet the following requirements:

[0040]

[0041] Where:

[0042] L Bmax : Luggage length, L Bmax =900mm;

[0043] X0: Photoelectric switch position at input end during shunting;

[0044] X1: Input the photoelectric switch position at the tail end of the conveyor during diversion;

[0045] X2: The photoelectric switch position at the head end of the upper conveyor output during diversion;

[0046] T b : One-way swing time of vertical separation and merging conveying device;

[0047] T0: The time from when the vertical separation and merging conveyor device swings into place to when K1 detects the baggage, also known as the safety time.

[0048] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a design method for a vertical splitting and merging conveying device and a swing connecting rod mechanism thereof, and the beneficial effects are as follows:

[0049] (1) The vertical separation and merging conveying device of the present invention is driven by a driving motor and adopts the principle of a quadrilateral connecting rod mechanism. The swing connecting rod mechanism causes the swing conveying mechanism to swing back and forth in the vertical direction, and overlaps and conveys with the upper conveying mechanism and the lower conveying mechanism at different positions in the vertical direction, thereby completing the separation and merging operation of the material, with high operational flexibility and accuracy;

[0050] (2) The present invention designs a suitable swing connecting rod structure through this method, applies relevant principles and theories, completes the calculation of relevant parameters of the crank rocker mechanism, and finally calculates the stroke speed ratio coefficient K and the minimum transmission angle δ min The strength check is carried out according to relevant standards, which solves the problem of difficult calculation of the swing-link structure; and the design method of the swing-link mechanism is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0052] Figure 1 A design flow chart of the swing link mechanism provided by the present invention;

[0053] Figure 2 A schematic diagram of the structure of the vertical separation and merging conveying device provided by the present invention (partial structure removed);

[0054] Figure 3 An exploded view of the structure of the support frame and the safety protection sliding door provided by the present invention;

[0055] Figure 4 A schematic structural diagram of the swing connecting rod mechanism provided by the present invention;

[0056] Figure 5 A schematic diagram of the position layout of the conveying mechanism provided by the present invention;

[0057] Figure 6 A schematic diagram of the state of the swing connecting rod mechanism when the swing conveying mechanism provided by the present invention is overlapped with the upper conveying mechanism;

[0058] Figure 7 A schematic diagram of the state of the swing connecting rod mechanism when the swing conveying mechanism provided by the present invention is overlapped with the lower conveying mechanism;

[0059] Figure 8 Schematic diagram of a planar crank rocker mechanism after the swing connecting rod mechanism structure provided by the present invention is simplified Figure 1 ;

[0060] Fig. 9 Schematic diagram of a planar crank rocker mechanism with a simplified structure of the swing connecting rod device provided by the present invention Figure 2 ;

[0061] Fig.10 This is a schematic diagram of the separation and merging of Lines 1 and 2 of the vertical separation and merging conveying device provided by the present invention.

[0062] Among them, in the figure,

[0063] 1-support frame 1; 2-swing conveying mechanism; 3-upper conveying mechanism; 4-lower conveying mechanism;

[0064] 5-Swing connecting rod mechanism;

[0065] 51-front end connecting rod; 52-front end bracket; 53-swing arm assembly; 54-rear end connecting rod; 55-rear end bracket; 56-transmission connecting rod; 57-fixed seat; 58-rotating plate; 59-driving shaft;

[0066] 6- Transmission mechanism;

[0067] 7-Safety protection sliding door;

[0068] 71-Fixed door net;

[0069] 8-Electrical control box. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] Embodiment 1:

[0072] like Figure 2 , Figure 4 As shown, the embodiment of the present invention discloses a vertical flow separation and merging conveying device, comprising:

[0073] Support frame 1, the support frame is the main supporting component of the equipment;

[0074] The conveying mechanism includes: a swing conveying mechanism 2 for input / output, an upper conveying mechanism 3 for output / input, and a lower conveying mechanism 4 for output / input; the swing conveying mechanism 2 is rotatably connected to the support frame 1; the upper conveying mechanism 3 is rotatably connected to the support frame 1, and the lower conveying mechanism 4 is fixedly connected to the support frame 1;

[0075] The swing link mechanism 5 includes: a front end link 51, a front end bracket 52, a swing arm assembly 53, a rear end link 54, a rear end bracket 55, a transmission shaft and a transmission link 56; the front end bracket 52 is arranged at the bottom of the swing conveying mechanism 2; the two front end links 51 are hinged at the two ends of the front end bracket 52, and the other end of the front end link 51 is hinged to the swing arm assembly 53; the rear end bracket 55 is arranged at the bottom of the upper conveying mechanism 3; the rear end link 54 is hinged at the two ends of the rear end bracket 55, and the other end of the rear end link 54 is hinged to the swing arm assembly 53; the swing arm assembly 53 is rotatably connected to the support frame 1; the transmission link 56 is hinged to the swing arm assembly 53; the transmission shaft includes: a driving shaft 59 and a rotating plate 58; the driving shaft 59 is fixedly connected to one end of the rotating plate 58, and the other end of the rotating plate 58 is hinged to the transmission link 56;

[0076] The driving motor is connected to the supporting frame 1, and the output end of the driving motor is connected to the driving shaft 59. The swing conveying mechanism 2 and the upper conveying mechanism 3 are respectively connected to the supporting frame 1 through a fixed rotating shaft, so as to realize swinging in the vertical direction.

[0077] In order to further optimize the above technical solution, Figure 3As shown, safety protection sliding doors 7 are arranged on both sides of the support frame 1, and fixed door nets 71 and sliding door nets are arranged on the safety protection sliding doors 7. A safety switch is arranged on the safety protection sliding door 7, and the sliding door net on the safety protection sliding door 7 can be opened only when the equipment is shut down and not working, which can improve the safety of use.

[0078] In order to further optimize the above technical solution, an electric control box 8 and a transmission mechanism 6 are provided on the outside of the support frame 1, and the transmission mechanism 6 and the drive motor are connected to the electric control box 8; there are multiple transmission mechanisms 6, which are respectively connected to the swing conveying mechanism 2, the upper conveying mechanism 3 and the lower conveying mechanism 4.

[0079] In order to further optimize the above technical solution, Figure 4 As shown, both ends of the swing arm assembly 53 are rotatably connected to a fixing seat 57 , and the fixing seat 57 is fixedly connected to the supporting frame 1 .

[0080] like Figure 1 As shown, a design method of a swing link mechanism in a vertical separation and merging conveying device comprises the following steps:

[0081] Step 1: According to the target requirements, determine the structural dimensions (length × width × height) of the vertical separation and merging conveyor device, the inclination angle φ of the conveying mechanism in the vertical separation and merging conveyor device, the conveying capacity G of the vertical separation and merging conveyor device, and the baggage clearance H between the upper and lower conveying mechanisms. These basic parameters are used as the original parameters for the design of the vertical separation and merging conveyor device;

[0082] Step 2: Based on the original parameters of step 1, determine the structural dimensions of the support frame 1; preliminarily determine the length L1 and the input / output conveying surface height H1 of the swing conveying mechanism 2, the length L2 and the upper input / output conveying surface height H2 of the upper conveying mechanism 3, the length L3 and the lower input / output conveying surface height H3 of the lower conveying mechanism 4, such as Figure 5 According to the knowledge of relevant mechanical principles and mechanical design, the design principle of the planar four-bar linkage is used to adjust the position P1M of the swing link mechanism 5 and the conveying mechanism. 11 、P2M 21 and the dimensions of its components, ensure that the swing conveying mechanism 2 and the upper conveying mechanism 3 and the lower conveying mechanism 4 overlap at different positions in the vertical direction, and obtain the structure of the swing link mechanism 5; wherein the length of the rotating plate 58 is O1A 11 , the length of the transmission connecting rod 56 is A 11 B 11 , the length of the front connecting rod 51 is C 11 M 11 , the length of the rear end connecting rod 54 is C 21 M 21 ,like Figure 6shown.

[0083] Step 3: Based on the structure obtained in step 2, simplify it into a plane hinge four-bar linkage mechanism to verify whether the obtained structure is a crank rocker mechanism;

[0084] Step 4: Based on the crank-rocker mechanism obtained in step 3, calculate the extreme position angle θ, the swing angle Ψ of the rocker rod, and the stroke speed ratio coefficient K of the crank-rocker mechanism;

[0085] Step 5: Based on the crank-rocker mechanism obtained in step 4, calculate its minimum transmission angle δ min ;

[0086] Step 6: Based on the crank rocker mechanism obtained in step 5 and in combination with the conveying capacity requirements of the vertical separation and merging conveying device in step 1, determine the conveying speed of the conveying mechanism and design the conveying mechanism as a single unit;

[0087] Step 7: Perform strength check on the whole machine and its components obtained in step 6, or establish a three-dimensional model of the crank-rocker mechanism to perform finite element analysis and / or simulation analysis; if the check strength meets the requirements, the design is passed; if the check strength does not meet the requirements, the design is changed until it passes;

[0088] Step 8: Based on the structure obtained in step 7, calculate the power of the reduction motor for the swing arm and conveying mechanism, and select the model;

[0089] Step 9: Design of other components.

[0090] In order to further optimize the above technical solution, the condition for verifying whether the obtained structure is a crank rocker mechanism in step three is that the sum of the lengths of the shortest rod and the longest rod in the four-bar linkage is less than or equal to the sum of the lengths of the other two rods, and one of the connecting rod and the frame in the four-bar linkage must be the shortest rod.

[0091] In order to further optimize the above technical solution, Figure 8 As shown, the calculation process of the extreme position angle θ of the crank rocker mechanism, the swing angle Ψ of the rocker rod, and the stroke speed ratio coefficient K in step 4 is as follows:

[0092] (1) Determine the length of the crank structure O1A=a, the length of the connecting rod structure AB=b, the length of the rocker structure O3B=c, and the length of the frame body O1O3=d; where a, b, c, and d satisfy the following relationship:

[0093] a 2 +d 2 <b 2 +c 2 ;

[0094] (2) In the crank-rocker mechanism, during one rotation of the crank, the acute angle between the crank and the connecting rod when they are in the same linear position twice is the extreme position angle θ = ∠B 22 O1B 11 , the calculation formula is as follows:

[0095] In △B 22 O1B 11 ,

[0096] (3) In the crank-rocker mechanism, during one rotation of the crank, the angle between the two extreme positions of the rocker is the swing angle of the rocker rod ψ = ∠B 22 O3B 11 , the calculation formula is as follows:

[0097] In △B 22 O3B 11 ,

[0098] (4) In a crank-rocker mechanism, the stroke speed ratio coefficient is also called the stroke ratio. In order to measure the relative degree of the quick return motion of the mechanism, the ratio of the average angular velocity of the fast stroke (return stroke) to the slow stroke (push stroke) or the ratio of the fast stroke to the slow stroke time when the follower swings back and forth is usually called the stroke speed ratio coefficient, denoted by K, and its calculation formula is as follows:

[0099]

[0100] The stroke speed ratio coefficient of the crank rocker mechanism is a measure of the relative degree of the quick return motion of the mechanism. When K=1, that is, when the extreme position angle θ=0, there is no quick return effect. The larger K is, the more obvious the quick return effect of the mechanism is, and the greater the impact on the mechanism. The stroke speed ratio coefficient K of the crank rocker mechanism in the present invention should be as close to 1 as possible.

[0101] In order to further optimize the above technical solution, Fig. 9 As shown, the minimum transmission angle δ in step 5 min The calculation method is as follows:

[0102] During the movement of the crank rocker mechanism, the transmission angle varies with the position of the mechanism. The minimum transmission angle occurs at one of the two positions where the active crank structure and the frame are collinear. The smaller transmission angle of the two positions is the minimum transmission angle δ min , the calculation formula is as follows:

[0103] In △B3A3O3, the transmission angle

[0104] In △B4A4O3, the transmission angle

[0105] Minimum transmission angle δ min =min(δ1,δ2)

[0106] In order to ensure good force transmission performance of the mechanism, the minimum transmission angle should be at least 30°.

[0107] In order to further optimize the above technical solution, Fig.10 As shown, the conveying speed of the equipment is the key to whether the luggage can be continuously, safely and smoothly conveyed on the conveying device. If the speed is too fast, the subsequent luggage will arrive at the end of the input swing conveying mechanism 2 in advance before the equipment swings and switches into place, which will cause accidents such as bag jamming and falling. If the conveying speed is too slow, the waiting time after the equipment swings and switches into place is too long, which reduces the equipment diversion efficiency and makes it difficult to meet the equipment diversion capacity requirements. Therefore, the position arrangement of the photoelectric switch hole on the side of the conveying mechanism is particularly critical. The conveying speed of the conveying mechanism is the key to the continuous, safe and smooth conveying of luggage on the vertical separation and converging conveying device. In order to ensure the safe and smooth diversion of luggage, the civil aviation industry standard requires that the maximum luggage conveying speed should meet the following requirements:

[0108]

[0109] Where:

[0110] L Bmax : Luggage length, L Bmax =900mm;

[0111] X0: Photoelectric switch position at input end during shunting (mm);

[0112] X1: Input the position of the photoelectric switch at the tail end of the conveyor during diversion (mm);

[0113] X2: The position of the photoelectric switch at the output end of the upper conveyor during diversion (mm);

[0114] T b : One-way swing time of vertical separation and merging conveying device (s);

[0115] T0: The time from when the vertical separation and merging conveyor device swings into place to when K1 detects the baggage, also known as the safety time (s).

[0116] Embodiment 2:

[0117] A design method for a swing link mechanism in a vertical separation and merging conveying device comprises the following steps:

[0118] Target requirements: (1) The length of the vertical split-and-merge conveyor device shall not exceed 3000 mm; (2) The splitting capacity of the vertical split-and-merge conveyor device shall be ≥1800 pieces / hour; (3) The inclination angle of the conveyor in the vertical split-and-merge conveyor device shall be ≤11°; (4) The luggage clearance between the upper and lower conveying mechanisms shall be ≥900 mm. These basic parameters shall be used as the original parameters for the design of the vertical split-and-merge conveyor device.

[0119] Step 1: According to the target requirements, determine the structural dimensions of the vertical separation and confluence conveying device: about 3000mm×1634mm×2240mm (length×width×height), wherein the width of the support frame 1 can be adjusted according to the target requirements; the inclination angle of the conveying device in the vertical separation and confluence conveying device is φ=11°;

[0120] Step 2: If Figure 5-7 As shown, in order to ensure the overlap of the swing conveying mechanism 2 and the upper conveying device mechanism 3 and the lower conveying mechanism 4 at different positions in the vertical direction, after calculation, it is finally determined that the swing link mechanism 5 is installed in the center: P1O4=0.5P1Q=1429.2mm, P1P2=1111mm (from this data, the luggage clearance H between the upper and lower conveying mechanisms can be calculated to be about 908mm, which meets the target requirements); the position where the swing link mechanism 5 is connected to the swing conveying mechanism 2: P1M 11 =P1M 12 =1193.77mm, the position where the swing link mechanism 5 is connected to the upper conveying mechanism 3: P2M 21 =P2M 22 =1193.77mm; length C of the front connecting rod 51 11 M 11 =467.5mm, length C of the rear end connecting rod 54 21 M 21 = 1012.5mm; the length of the rotating plate 58 is O1A = a = 100mm, the length of the transmission connecting rod 56 is AB = b = 548mm, the length of the swing shaft assembly CD is O3B = c = 159mm, the length of the frame body is O1O3 = d = (535 2 +4 2 ) 0.5 =284261 0.5 mm; wherein, P1 is the center position of the drive shaft of the swing conveying mechanism 2, P2 is the center position of the drive shaft of the upper conveying mechanism 3, P3 is the center position of the drive shaft of the lower conveying mechanism 4, O1 is the center position of the output shaft of the drive motor, and O3 is the center position of the swing arm assembly 53.

[0121] According to the above data, after relevant calculations, it is finally determined that the length L1 of the swing conveying mechanism 2 is 1510mm and the input / output conveying surface height H1 is 1155mm, the length L2 of the upper conveying mechanism 3 is 1510mm and the upper output / input conveying surface height H2 is 1690mm, and the length L3 of the lower conveying mechanism 4 is 1510mm and the lower output / input conveying surface height H3 is 580mm.

[0122] like Figure 8 As shown, the above data is put into step 4 process (a), then:

[0123] a 2 +d 2 =100 2 +286241=296225,b 2 +c 2 =159 2 +548 2 =325585

[0124] Obviously, a 2 +d 2 <b 2 +c 2 .

[0125] Step 4: Calculate the extreme position angle θ, the swing angle Ψ of the swing rod, and the travel speed ratio coefficient K

[0126] like Figure 8 As shown, in △B 22 O1B 11 , the resulting extreme position angle of the mechanism

[0127]

[0128] The swing angle of the swing rod of the obtained mechanism

[0129]

[0130] Stroke speed ratio coefficient

[0131] Step 5: Calculate the minimum transmission angle δ min ,like Fig. 9 shown.

[0132] In △B3A3O3, the transmission angle

[0133] In △B4A4O3, the transmission angle

[0134] The minimum transmission angle δ can be obtained from this min =min(δ1,δ2)=38.5177°.

[0135] Through the above calculation, it can be known that the stroke speed ratio coefficient K of the crank rocker mechanism of this embodiment is 1.0539, and the quick return effect of the mechanism is not obvious; the minimum transmission angle δ of the crank rocker mechanism of this embodiment is min =38.5177°, the force transmission performance of the mechanism is better.

[0136] Step 6: Determine the conveying speed of the conveying device.

[0137] According to design experience, in this embodiment, L=1510mm, X0=300mm, X1=100mm, X2=100mm, then the conveying speed V needs to meet:

[0138]

[0139] Assuming the conveying speed V = 0.9m / s, the processing capacity of the vertical separation and confluence conveying device is

[0140]

[0141] Assuming the conveying speed V = 1.0m / s, the processing capacity of the vertical separation and confluence conveying device is

[0142]

[0143] Meet target needs.

[0144] Step 7: After calculation, the power of the driving motor for the swing arm of this embodiment is 2.2kw, and the power of the driving motor for the conveying mechanism is 1.1kw. The model of the motor can be selected according to actual needs.

[0145] Step 8: The strength check of the equipment and its components and the design of other components in this embodiment are conventional designs and will not be elaborated here.

[0146] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0147] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vertical separation and merging conveying device, characterized in that: include: A support frame, which is the main supporting component of the device; A conveying mechanism, the conveying mechanism comprising: a swing conveying mechanism for input / output, an upper conveying mechanism for output / input, and a lower conveying mechanism for output / input; the swing conveying mechanism is rotatably connected to the support frame; the upper conveying mechanism is rotatably connected to the support frame, and the lower conveying mechanism is fixedly connected to the support frame; The swing-link mechanism comprises: a front-end link, a front-end bracket, a swing arm assembly, a rear-end link, a rear-end bracket, a transmission shaft and a transmission link; the front-end bracket is arranged at the bottom of the swing conveying mechanism; the two front-end links are hinged at the two ends of the front-end bracket, and the other end of the front-end link is hinged to the swing arm assembly; the rear-end bracket is arranged at the bottom of the upper conveying mechanism; the rear-end link is hinged at the two ends of the rear-end bracket, and the other end of the rear-end link is hinged to the swing arm assembly; the swing arm assembly is rotatably connected to the supporting frame; the transmission link is hinged to the swing arm assembly; the transmission shaft comprises: a driving shaft and a rotating plate; one end of the driving shaft and the rotating plate is fixedly connected, and the other end of the rotating plate is hinged to the transmission link; A driving motor is connected to the supporting frame, and an output end of the driving motor is connected to the driving shaft.

2. A vertical separation and merging conveying device according to claim 1, characterized in that: Safety protection sliding doors are arranged on both sides of the support frame, and the safety protection sliding doors are provided with a fixed door net, a sliding door net and a safety switch.

3. A vertical separation and merging conveying device according to claim 2, characterized in that: An electric control box and a transmission mechanism are arranged outside the support frame, and the transmission mechanism and the drive motor are connected to the electric control box; there are multiple transmission mechanisms, which are respectively connected to the swing conveying mechanism, the upper conveying mechanism and the lower conveying mechanism.

4. A vertical separation and merging conveying device according to claim 1, characterized in that: Two ends of the swing arm assembly are rotatably connected with fixed seats, and the fixed seats are fixedly connected to the supporting frame.

5. A design method for a swing link mechanism in a vertical separation and merging conveying device, characterized in that: The following steps are involved: Step 1: According to the target requirements, determine the structural dimensions of the vertical separation and merging conveyor, the inclination angle of the conveying mechanism in the vertical separation and merging conveyor, the conveying capacity of the vertical separation and merging conveyor, and the baggage clearance between the upper and lower conveying mechanisms. These basic parameters are used as the original parameters for the design of the vertical separation and merging conveyor; Step 2: According to the original parameters described in step 1, determine the structural dimensions of the support frame; preliminarily determine the length of the swing conveying mechanism and the height of the input / output conveying surface, the length of the upper conveying mechanism and the height of the upper input / output conveying surface, and the length of the lower conveying mechanism and the height of the lower input / output conveying surface; according to the knowledge of relevant mechanical principles and mechanical design, use the design principle of the planar four-bar linkage to adjust the connection position of the swing link mechanism and the conveying mechanism and the dimensions of their components to ensure that the swing conveying mechanism and the upper conveying mechanism and the lower conveying mechanism overlap at different positions in the vertical direction, and obtain the structure of the swing link mechanism; Step 3: Based on the structure obtained in step 2, simplify it into a plane hinge four-bar linkage mechanism to verify whether the obtained structure is a crank rocker mechanism; Step 4: Based on the crank-rocker mechanism obtained in step 3, calculate the extreme position angle θ, the swing angle Ψ of the rocker rod, and the stroke speed ratio coefficient K of the crank-rocker mechanism; Step 5: Based on the crank-rocker mechanism obtained in step 4, calculate its minimum transmission angle δ min ; Step 6: Based on the crank rocker mechanism obtained in step 5 and in combination with the conveying capacity requirements of the vertical separation and merging conveying device described in step 1, determine the conveying speed of the conveying mechanism and perform a stand-alone design of the conveying mechanism; Step 7: Perform strength check on the whole machine and its components according to the result of step 6; Step 8: Based on the structure obtained in step 7, calculate the power of the reduction motor for the swing arm and conveying mechanism, and select the model; Step 9: Design of other components.

6. The design method of a swing link mechanism in a vertical separation and merging conveying device according to claim 5 is characterized in that: The condition for verifying whether the obtained structure is a crank rocker mechanism in step 3 is that the sum of the lengths of the shortest rod and the longest rod in the four-bar linkage is less than or equal to the sum of the lengths of the other two rods, and one of the connecting rod and the frame in the four-bar linkage must be the shortest rod.

7. The design method of a swing link mechanism in a vertical separation and merging conveying device according to claim 5, characterized in that: The calculation process of the extreme position angle θ of the crank-rocker mechanism, the swing angle Ψ of the swing rod, and the stroke speed ratio coefficient K in step 4 is as follows: (1) Determine the length a of the crank structure, the length b of the connecting rod structure, the length c of the rocker structure, and the length d of the frame body; (2) In the crank-rocker mechanism, the acute angle between the crank and the connecting rod when they are in the collinear position twice is the extreme position angle θ, which is calculated as follows: (3) In the crank rocker mechanism, the angle between the two extreme positions of the rocker is the swing angle Ψ of the rocker arm, which is calculated as follows: (4) In the crank-rocker mechanism, the stroke speed ratio coefficient is also called the stroke ratio. Usually, the ratio of the average angular velocity of the fast stroke to the slow stroke or the ratio of the fast stroke to the slow stroke time when the follower swings back and forth is called the stroke speed ratio coefficient, denoted by K. Its calculation formula is as follows:

8. The design method of a swing link mechanism in a vertical separation and merging conveying device according to claim 5, characterized in that: The minimum transmission angle δ in step 5 min The calculation method is as follows: During the movement of the crank rocker mechanism, the transmission angle varies with the position of the mechanism. The minimum transmission angle occurs at one of the two positions where the active crank structure and the frame are collinear. The smaller transmission angle of the two positions is the minimum transmission angle δ min , the calculation formula is as follows: d min =min(δ1,δ2).

9. The design method of a swing link mechanism in a vertical separation and merging conveying device according to claim 5, characterized in that: The conveying speed of the conveying mechanism is the key to the continuous, safe and smooth conveying of luggage on the conveying device. The civil aviation industry standard requires that the maximum luggage conveying speed should meet the following requirements: Where: L Bmax : Luggage length, L Bmax =900mm; X0: Photoelectric switch position at input end during shunting; X1: Input the photoelectric switch position at the tail end of the conveyor during diversion; X2: The photoelectric switch position at the head end of the upper conveyor output during diversion; T b : One-way swing time of vertical separation and merging conveying device; T0: The time from when the vertical separation and merging conveyor device swings into place to when K1 detects the baggage, also known as the safety time.

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