A trolley type suspension chain conveying system

Abstract

The present invention relates to the technical field of suspension chain transmission systems, and specifically to a trolley-type suspension chain conveying system, comprising a guide rail assembly and a guide rod assembly which is integrally located below the guide rail assembly, a suspension chain is arranged on the conveying path of the guide rail assembly, a conveying vehicle which can slide on the guide rod assembly, a push hook for pulling the conveying vehicle forward is installed on the suspension chain, a sub-conveyor line with two ends which can be connected to two positions of the guide rod assembly is arranged in the area surrounded by the guide rod assembly, and the conveying vehicle has a carrying rod for carrying goods, which has a stronger load capacity and a lower failure rate.

Description

Technical Field

[0001] The invention relates to the technical field of suspension chain transmission systems, in particular to a trolley type suspension chain conveying system. Background Art

[0002] At present, the hanging chain conveyor technology is mainly used in clothing manufacturing [clothing that is not easy to fold, B2B batch shipments], clothing commercial logistics, industrial assembly; picking and sorting of medium and large items in e-commerce logistics centers, or picking and sorting of medium and large items in vertical e-commerce warehouses. Traditional hanging conveyor systems can only transport single pieces and lighter goods, and the stability of the system is not good enough. Summary of the invention

[0003] The object of the present invention is to provide a trolley type suspension chain conveying system with stronger load capacity and lower failure rate.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: a trolley-type suspension chain conveying system, comprising a guide rail assembly and a guide rod assembly which is integrally located below the guide rail assembly, a suspension chain is arranged on the conveying path of the guide rail assembly, a conveying vehicle which can slide on the guide rod assembly is provided on the guide rod assembly, a push hook for pulling the conveying vehicle forward is installed on the suspension chain, and a sub-conveyor line with two ends respectively used for conducting with two positions of the guide rod assembly is arranged in the area surrounded by the guide rod assembly, and the conveying vehicle has a loading rod for loading goods.

[0005] As a preferred embodiment of the present invention, upwardly extending support arms are respectively installed at both ends of the carrying rod, and pulleys capable of sliding on the guide rod assembly and the upper half of the sub-conveyor line are installed on the support arms. The carrying rod is maintained below the guide rod assembly or the sub-conveyor line between the support arms at both ends.

[0006] As a preferred embodiment of the present invention, a sorting mechanism capable of switching between its own path and the path of the sub-conveyor line is provided on the conveying path of the guide rod assembly, and a lever capable of communicating with another position of the guide rod assembly is installed at one end of the sub-conveyor line deviating from the sorting mechanism.

[0007] As a preference for the present invention, it further comprises a driving mechanism for driving the suspension chain to travel and a tensioning mechanism for tensioning the suspension chain.

[0008] As a preferred embodiment of the present invention, the tensioning mechanism is arranged at a 180-degree corner of the guide rail assembly.

[0009] As a preferred embodiment of the present invention, a shift fork capable of driving the suspension chain to move is installed on the drive chain of the drive mechanism.

[0010] As a preferred embodiment of the present invention, the suspension chain is a double guide wheel chain.

[0011] As a preferred embodiment of the present invention, the guide rail assembly includes a plurality of guide rail segments, each of which has a conveying channel for the suspension chain to pass through and has a cross-shaped cross section.

[0012] As a preferred embodiment of the present invention, the conveying channel is communicated with the lower area of ​​the guide rail section, and a push hook connecting plate is installed on the chain link of the suspension chain, which passes downward through the conveying channel and is used to fix the push hook.

[0013] As a preferred embodiment of the present invention, the guide rail assembly has at least one climbing guide rail section, and a guide bar for pushing the hook to climb the slope is installed on the lower side of the climbing guide rail section.

[0014] Beneficial effects of the present invention: The system of the present application enables the conveyor vehicle to be better towed and moved forward through the matching of the guide rail assembly and the guide rod assembly above and below, and improves the conveying capacity of a single conveyor vehicle through the design of the carrying rod. Multiple items can be transported at a time, and a maximum of 50 kg of items can be transported. The transport efficiency is also high, and the system is more stable and reliable.

[0015] In particular, the tensioning mechanism involved stretches the suspension chain to perform tensioning by moving the guide rail itself, combining the two functions of the guide rail and the tensioning on the line, which reduces the equipment's requirements for the external environment and has significantly better efficiency than traditional forms. There are more options for installation positions, and it can be arranged on the segment of the guide rail assembly along the travel direction of the suspension chain. After installation, it has good stability and more optimized force distribution. The entire suspension chain system has better fluidity, a lower failure rate, and a guaranteed service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the figure, 10, conveying channel, a, first guide rail section, b, second guide rail section, 101, conveying channel docking interface, c, first suspension plate, d, second suspension plate, 2, screw rod, 3, adjustment nut, 4, tension spring, 5, directional rod, e, first guide rod section, f, second guide rod section, 81, first cantilever, 82, second cantilever, g, guide nesting rod, 44, lower tension spring, 1, guide rail section, 11, suspension plate, 1 a, steering guide rail section, h, guide rail assembly, s, guide rod assembly, h1, suspension chain, g1, conveyor vehicle, h2, push hook, k, sub-conveyor line, g11, carrying rod, g12, support arm, g13, pulley, j, sorting mechanism, g14, shift rod, m, driving mechanism, n, tensioning mechanism, m0, shift fork, 1, guide rail section, 10, conveying channel, h20, push hook connecting plate, h0, climbing guide rail section, h01, guide strip.

[0017] Figure 1 is an assembly drawing of an embodiment;

[0018] Figure 2 is a partial fragmentary diagram of the trolley of the embodiment running on the guide rails and guide rods;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the trolley of the embodiment;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the driving mechanism part of the embodiment;

[0021] Figure 5 yes Figure 4 Schematic diagram of the three-dimensional structure from different viewing angles;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the rear side of the driving mechanism after a part of the guide rail section is removed;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the driving mechanism from an upward perspective after a portion of the guide rail section is removed;

[0024] Figure 8 is a schematic diagram of the three-dimensional structure of the sorting mechanism of the embodiment;

[0025] Fig. 9 yes Figure 8 Schematic diagram of the three-dimensional structure from another perspective;

[0026] Fig.10 is a schematic diagram of the three-dimensional structure of the climbing guide rail section of the embodiment;

[0027] Fig.11 It is a three-dimensional structural schematic diagram of the tensioning mechanism part;

[0028] Fig.12 yes Fig.11 The enlarged view of point I in the middle;

[0029] Fig.13 It is a schematic diagram of the state of the tensioning mechanism when tensioning and applying force;

[0030] Fig.14 yes Fig.11 A schematic diagram of the three-dimensional structure from the perspective of the far end of the driving mechanism;

[0031] Fig.15 yes Fig.11 Schematic diagram of the three-dimensional structure from the proximal perspective of the drive mechanism. DETAILED DESCRIPTION

[0032] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

[0033] Examples, such as Figure 1-15 As shown, a trolley-type suspension chain conveying system comprises a guide rail assembly h and a guide rod assembly s which is integrally located below the guide rail assembly h, a suspension chain h1 is arranged on the conveying path of the guide rail assembly h, a conveying vehicle g1 which can slide thereon is provided on the guide rod assembly s, a push hook h2 for pulling the conveying vehicle g1 forward is installed on the suspension chain h1, a sub-conveyor line k which has two ends respectively used for conducting with two positions of the guide rod assembly s is arranged in the area surrounded by the guide rod assembly s, and a carrying rod g11 for carrying goods is provided on the conveying vehicle g1. The lower part of the suspension chain h1 is equipped with a push hook h2, which can hook out the conveyor g1. The conveyor g1 can slide on the guide rod assembly s. The specific structure will be explained later. The main design lies in the design of the carrying rod g11, which makes the carrying capacity larger and can hang more goods. The length of the carrying rod g11 can be selected according to how many objects need to be carried each time. When the conveyor g1 is moving, the carrying rod g11 should be below the section of the guide rod assembly s corresponding to the carrying rod g11 at that time, so as to better carry out the loading operation. The design of the sub-conveyor line k further improves the space utilization rate and increases the capacity and processing capacity of the entire logistics.

[0034] The two ends of the carrying rod g11 are respectively equipped with support arms g12 extending upwards, and the support arms g12 are equipped with pulleys g13 that can slide on the guide rod assembly s and the upper half of the sub-conveyor line k. The carrying rod g11 is kept below the guide rod assembly s or the sub-conveyor line k between the support arms g12 at both ends. In this way, the carrying rod g11, the support arms g12 and the pulleys g13 form a basic body of the conveying vehicle g1, which can slide well on the guide rod assembly s. Of course, the driving force comes from the push hook h2, so the push hook h2 must be able to hook or abut against the conveying vehicle g1. Preferably, a slot p1 can be set on the upper rear side of one of the support arms g12 for the hook of the push hook h2 to abut forward for conveying.

[0035] The conveying path of the guide rod assembly s is provided with a sorting mechanism j that can switch between its own path and the path of the branch conveying line k. The end of the branch conveying line k that deviates from the sorting mechanism j is equipped with a lever g14 that can be connected to another position of the guide rod assembly s. The lever g14 can be manual, and the lever g14 can be lowered manually or by the weight of the cargo trolley to connect the branch line with the main line, and then the conveying vehicle g1 is pushed from the branch line to the main line manually or by a robot. The branch conveying line k also adopts the segment structure of the guide rod assembly, that is, a structure that can be assembled with a circular cross-section rod body for conveying and sliding. The sorting mechanism j includes a transverse offset guide rod segment j1 which is hinged to an adjacent guide rod segment to form a hinge portion j0. The transverse offset guide rod segment j1 can be laterally offset, so the sorting mechanism j also includes a transverse telescopic cylinder j2 for its offset. The transverse telescopic cylinder j2 can be installed on a wall or a hanging plate of the segment. The transverse telescopic cylinder j2 can be controlled by an electric control device. A positioning protrusion j3 is formed at one end of the transverse offset guide rod segment j1 away from the hinge portion j0, and a first positioning groove j4 for the positioning protrusion j3 to be laterally placed is provided on the adjacent guide rod segment close to the positioning protrusion j3. The sorting conveyor line k closes the sorting conveyor line k. One end of the picking mechanism j is provided with a second positioning groove j5 for the positioning protrusion j3 to be laterally inserted. Initially, the laterally offset guide rod segment j1 is normally on the path of the guide rod assembly s. When sorting is required, the cylinder moves to push the laterally offset guide rod segment j1 and connect it to the second positioning groove j5 to achieve line switching. The first positioning groove j4 and the second positioning groove j5 should be arranged oppositely and there should be no obstacles in the middle to facilitate the lateral movement of the laterally offset guide rod segment j1. The hinge j0 is preferably provided with a return spring j6 sleeved on the periphery to facilitate reset and prevent the laterally offset guide rod segment j1 from accidentally detaching from the guide rod assembly. Of course, the sorting mechanism j can adopt a similar or existing sorting structure.

[0036] The entire system further includes a driving mechanism m for driving the suspension chain h1 to travel and a tensioning mechanism n for tensioning the suspension chain h1.

[0037] The tensioning mechanism n will be designed and described in more detail later, and is preferably arranged at the 180-degree corner of the guide rail assembly h.

[0038] The driving chain of the driving mechanism m is equipped with a shift fork m0 that can drive the suspension chain h1. The driving mechanism m is a motor that drives the driving chain to circulate between the upper and lower parts. The main reason is the design of the shift fork m0. The shift fork m0 is located on the outer edge of the driving chain circulation path and extends outward, so it can contact the suspension chain h1, so that it can hang on the link shaft on the chain link of the suspension chain h1, and can drive the suspension chain forward. This structure should be a relatively conventional method in the field of chain transmission. The suspension chain h1 can adopt a double guide wheel chain, which can be well pushed by the shift fork m0. Of course, since the shift fork m0 is needed to drive the suspension chain h1, the top of the guide rail section in the driving mechanism needs to be opened, so that the suspension chain h1 in the guide rail section can contact the shift fork m0.

[0039] In addition, the guide rail assembly h includes a plurality of guide rail segments 1, wherein the guide rail segment 1 has a conveying channel 10 for the suspension chain h1 to pass through, and the cross section is cross-shaped. The conveying channel 10 is connected to the lower area of ​​the guide rail segment 1, and a push hook connecting plate h20 is installed on the chain link of the suspension chain h1, which passes downward through the conveying channel 10 and is used to fix the push hook h2. The chain link can be provided with a mounting hole, and the chain link and the push hook connecting plate h20 are fixed up and down by bolts and other locking parts.

[0040] The guide rail assembly h has at least one climbing guide rail section h0, and a guide bar h01 is installed on the lower side of the climbing guide rail section h0 for the push hook h2 to climb. The climbing guide rail section h0 is of course not only for climbing, but also for going downhill if it is reversed. It mainly has a height difference between the upper and lower parts, and the stability of the push hook h2 will be poor, and it will deviate to the left and right, which may cause unexpected accidents. The guide bar h01 is preferably set to be two on the left and right sides, and a guide groove is formed in the middle to limit and guide the left and right sides of the push hook h2, which is used to assist the push hook h2 to climb (go downhill). The maximum climbing (going downhill) ability of this system is improved, and the climbing (going downhill) angle can reach 30° or even higher.

[0041] The guide rail tensioning mechanism mentioned above is further introduced in detail below. It has a better effect when used in the system of the present application. It is used to tension the suspension chain. In this embodiment, the tensioning mechanism to be introduced is realized by relying on some segments in the guide rail assembly. Therefore, the guide rail in this embodiment is not only used to guide the suspension chain, but also can be used to tension the suspension chain by making a new structural design on the corresponding guide rail segment. Here, the guide rail assembly is assembled from a number of guide rail segments 1. The guide rail segment 1 has a straight line segment and an arc segment in shape, and a horizontal segment and a climbing / downhill segment in direction. The guide rail assembly is composed of many guide rail segments 1 connected together to form a complete conveyor line, and the guide rail tensioning mechanism of the present application can be set on one or several of the segments. The specific scheme is as follows:

[0042] The invention comprises at least one group of first guide rail segment a and second guide rail segment b which are adjacently arranged on the conveying path of the guide rail assembly and each of which has a conveying channel 10 for the passage of a suspension chain, and a guide rail segment spacing adjustment device which can extend the spacing distance between the conveying channel docking interfaces 101 of the first guide rail segment a and the second guide rail segment b which are adjacent to each other on the conveying path of the guide rail assembly and extend the conveying path of the guide rail assembly.

[0043] In the above scheme, the first guide rail segment a and the second guide rail segment b are two continuous segments of the guide rail assembly, and the conveying channel 10 is actually a guide groove for guiding the suspension chain. The mechanism of the present application requires such a conveying channel 10 guide rail mechanism to be realized, because it is necessary to use the wall surface of the conveying channel 10 to apply force to tension the suspension chain, and the conveying channel 10 needs to run through the entire guide rail segment 1. Therefore, there are two conveying channel docking interfaces 101 at the head and tail of the conveying channel 10 on a guide rail segment 1, which are respectively paired with the conveying channel docking interfaces 101 of other guide rail segments 1 for the suspension chain to pass through in sequence. In addition, it should be noted here that the length of the conveying path of the guide rail assembly is not only the length of the conveying channel on each guide rail segment 1 10, most of the adjacent guide rail segments 1 are closely spliced ​​and the adjacent conveying channel interfaces 101 between the two are also closely adjacent, and the spacing distance is basically maintained at 0, but there are some parts where the spacing distance between adjacent guide rail segments 1 is greater than 0, and even exceeds tens of centimeters, because some places of the entire guide rail assembly are spaced a little according to the needs of the site. If it is not necessary, the guide rail segments 1 should be closely spliced ​​as much as possible. Since there is such a possibility, not all guide rail segments 1 may be closely spliced, and some may be separated by a distance, and this spacing is also for the suspension chain to pass through and is in a suspended state. This place can be called a suspended section, and the suspended section also needs to be recorded In the length of the guide rail assembly conveying path, because there is a suspension chain passing through, the guide rail assembly conveying path includes each guide rail segment 1 and the suspended segment for the suspension chain to pass, which all need to be included in the total length of the conveying path. In the existing equipment, the original guide rail conveying path is basically maintained unchanged when there is no change in the original guide rail conveying path. Therefore, when the equipment is used for a long time, when the suspension chain itself becomes loose, the length of the suspension chain cannot be well matched to the guide rail assembly conveying path. Since the suspension chain becomes longer and the guide rail assembly conveying path remains unchanged, it will cause problems such as uneven operation, jamming, and chain derailment. Of course, there are many special tensioning mechanisms in the prior art, but the solution of the present application is to use a tensioning mechanism through The conveying path of the guide rail assembly is extended, and the guide rail is used to tension the suspension chain. The setting of the guide rail segment spacing adjustment device can extend the spacing distance between the adjacent conveying channel docking interfaces 101 between the first guide rail segment a and the second guide rail segment b, that is, there will be a suspended segment between the two, and the suspended segment has the ability to be extended. Then, in the tensioning mechanism of the present application, the sum of the three paths of the first guide rail segment a, the second guide rail segment b and the suspended segment between the two can be extended. With this basis, the tensioning mechanism of the present application can make the guide rail assembly have the potential to extend the entire conveying path. The extension of the guide rail assembly conveying path can better tension the loosened suspension chain.Since the guide rail segment spacing adjustment device in this embodiment needs to be set in the area between and around the first guide rail segment a and the second guide rail segment b, at the beginning, the first guide rail segment a and the second guide rail segment b need to ensure that there is sufficient spacing, that is, a suspended section needs to be reserved first for the installation of the guide rail segment spacing adjustment device, which will be described in detail later.

[0044] In fact, the function of the guide rail segment spacing adjustment device is to apply force to push the first guide rail segment a and the second guide rail segment b apart. Therefore, in the actual operation process, in order to achieve the extension of the guide rail assembly conveying path, the guide rail assembly needs to cooperate, because the first guide rail segment a and the second guide rail segment b in the tensioning mechanism of the present application need to exert force with the other guide rail segments 1 of the guide rail assembly to convert the extension of the conveying path of the tensioning mechanism into the extension of the conveying path of the guide rail assembly, because if the two ends of the entire tensioning mechanism cannot apply force to push the guide segments connected to the two ends even during the extension of their conveying path Rail segment 1, the conveying path of the tensioning mechanism cannot be converted into an extension of the conveying path of the guide rail assembly, so that the tensioning effect cannot be achieved, that is, the deviated ends of the first guide rail segment a and the second guide rail segment b should be able to connect with the two sections of the conveying path of the guide rail assembly as closely as possible when the installation is completed; or at least when the conveying path of the tensioning mechanism is extended when the tensioning mechanism tensions the suspension chain, the deviated ends of the first guide rail segment a and the second guide rail segment b can also apply force to push the corresponding guide rail segments 1 from other parts of the conveying path of the guide rail assembly to proceed. From this, it can also be determined that, for the guide rail segments 1 of the guide rail assembly conveying path that do not belong to the tensioning mechanism part, and the guide rail segments 1 at both ends that deviate from the first guide rail segment a and the second guide rail segment b, at least one side of the guide rail segment 1 needs to have the ability to move, and the first guide rail segment a or the second guide rail segment b that is docked with that side also needs to have the ability to move. The mobility mentioned here refers to the mobility of these guide rail segments during the adjustment process of the tensioning mechanism, in which these guide rail segments can be squeezed apart for a distance after a pushing force is applied to the adjacent ends of the first guide rail segment a and the second guide rail segment b during the adjustment process of the guide rail segment spacing adjustment device. Therefore, it is necessary to have the ability to be pushed apart and moved a certain distance during the adjustment process of the guide rail segment spacing adjustment device, rather than all being in a fixed state. Otherwise, there is no way to extend the spacing distance between the conveying channel docking interface 101 between the first guide rail segment a and the second guide rail segment b on the tensioning mechanism and convert it to the entire guide rail assembly conveying path, which will be described in detail later. Of course, all the sections involved in the above-mentioned guide rail assemblies should remain in a static state in normal transportation status, and movement is achieved by applying force through the guide rail section spacing adjustment device during the tensioning process.

[0045] The guide rail segment spacing adjustment device can adopt an existing telescopic connection structure such as a lead screw, a cylinder, etc. and be sandwiched in the area between the first guide rail segment a and the second guide rail segment b. This embodiment provides a solution with excellent effects in all aspects:

[0046] That is, it includes a first hanging plate c and a second hanging plate d which are respectively mounted on the periphery of the first guide rail segment a and the second guide rail segment b and are respectively used to hang the first guide rail segment a and the second guide rail segment b, and a screw rod 2 which is passed through the first hanging plate c and the second hanging plate d and extends along the conveying path direction between the conveying channel docking interface 101 of the first guide rail segment a and the second guide rail segment b, the screw rod 2 is provided with adjusting nuts 3 on the front and rear sides of the first hanging plate c and on the front and rear sides of the second hanging plate d, the guide rail segment spacing adjustment device also includes a tensioning spring 4 at both ends of which at least a portion rests on the end surface of the conveying channel docking interface 101 of the first guide rail segment a and at least a portion rests on the end surface of the conveying channel docking interface 101 of the second guide rail segment b, and at least a portion of the two ends of the tensioning spring 4 rests on the first hanging plate c and at least a portion rests on the second hanging plate d. In the suspension chain system, each guide rail segment 1 needs to be suspended by a suspension plate 11 so that the guide rail assembly is in a suspended state. The top of the suspension plate 11 is usually installed and connected through an existing top support mechanism such as a suspension chain or a suspension, so that the suspension plate 11 can be hoisted and suspended. The guide rail segment 1 passes through the suspension plate 11 and is hung on the suspension plate 11. In the tensioning mechanism of the present application, it is necessary that during the tensioning process, a part of the suspension plate 11 can move accordingly with the movement of the guide rail segment 1, that is, the corresponding part of the top support mechanism cannot be completely locked.

[0047] In particular, in this embodiment, it is recommended that both the first guide rail segment a and the second guide rail segment b are linear guide rail segments, and preferably the combination of the first guide rail segment a and the second guide rail segment b is arranged at the position of the turning guide rail segment 1a that turns 180 degrees in the guide rail assembly and can be tensioned at this position. The first guide rail segment a can be arranged to be directly or indirectly connected to one end of the turning guide rail segment 1a, and the second guide rail segment b can be arranged to be connected to the guide rail segment 1 near the driving mechanism area.

[0048] It is further preferred that one of the first guide rail segment a and the second guide rail segment b is a fixed segment and the other is a movable segment. The first guide rail segment a can be selected as the movable segment and the second guide rail segment b can be selected as the fixed segment. The advantage of this is that there are relatively few segments near the steering guide rail segment 1a that act on the first guide rail segment a. If this segment is movable, fewer structures are involved, which is convenient for control and design. Of course, if both the first guide rail segment a and the second guide rail segment b can be set as movable segments, but in this way, there are too many structures that move during the tensioning process, and the design requirements for the overall guide rail assembly and the top support mechanism will be improved, and there may be certain safety hazards. Therefore, it is recommended to use the solution of this embodiment, and the second guide rail segment b close to the driving side is set to a fixed state, while the first guide rail segment a directly or indirectly connected to the steering guide rail segment 1a closer to the driving mechanism is set to a movable state. The direct or indirect docking of the guide rail segment 1a and the first guide rail segment a means that direct docking is a structure in which the two are directly spliced ​​together, and indirect docking is a structure in which several other straight guide rail segments 1 can be sandwiched between the two. During tensioning, the first guide rail segment a together with the turning guide rail segment 1a or the guide rail segments 1 in between need to move outward together to tension the chain, and the second guide rail segment b, as a fixed segment, should also be docked with an immovable guide rail segment 1 at the far end of the first guide rail segment a, so that the second guide rail segment b will not be pushed away, and the several docked guide rail segments 1 in this part can be fixed on the driving mechanism or the beams and columns in the workshop, and the suspension plate 11 on this part of the guide rail segment 1 does not need to be installed and connected through the top support mechanism, but the suspension plate 11 is still provided as much as possible, because this kind of suspension chain system usually installs a conveying equipment located below the guide rail on the suspension plate 11.The first suspension plate c and the second suspension plate d mentioned in the present application are of course two of all the suspension plates 11, but the positions of these two plates have certain requirements. They are actually arranged at the end faces of the first guide rail section a and the second guide rail section b respectively. In this way, one end of the two ends of the tensioning spring 4 can simultaneously abut against the end face of the first guide rail section a and the plate surface of the first suspension plate c, and the other end can simultaneously abut against the end face of the second guide rail section b and the plate surface of the second suspension plate d, so that the tensioning operation can be well performed. In addition, since the first suspension plate c and the second suspension plate d are provided with screw rods 2 and adjusting nuts 3, the distance between the first suspension plate c and the second suspension plate d is rigidly locked by adjusting the adjusting nuts 3. Therefore, even if there is a tensioning spring 4, the first suspension plate c and the second suspension plate d will not be pushed apart by the tensioning spring 4, thereby controlling the tensioning operation, that is, moving these adjusting nuts 3 away from the first suspension When the plate c is unscrewed outwardly in the direction away from the second suspension plate d, freedom can be given to allow the tensioning spring 4 to open the first suspension plate c and the second suspension plate d as well as the first guide rail section a and the second guide rail section b. Since the second suspension plate d and the second guide rail section b are fixed parts, the tensioning spring 4 will push the first suspension plate c and the first guide rail section a apart, and drive the steering guide section 1a to expand outward, thereby lengthening the interval between the first guide rail section a and the second guide rail section b, and can be well converted to the conveying path of the guide rail assembly, so that the conveying path of the guide rail assembly becomes longer, and the entire suspension chain can be stretched and tensioned as a whole on the guide rail. The degree of tension is determined by the stroke of the adjusting nut 3 in the direction away from the first suspension plate c and the second suspension plate d. Of course, after tensioning, due to the presence of the adjusting nut 3, the degree of tension will be limited to the position of the adjusting nut 3 and will not be infinitely tensioned. If tensioning is required later, the position of the adjusting nut 3 can be adjusted again. Then, based on the fact that the turning guide rail segment 1a is a U-shaped structural segment, it is necessary to push it to expand outward to extend the conveying path of the guide rail assembly. It is best to set a group of first guide rail segment a and second guide rail segment b at each end of the turning guide rail segment 1a. That is to say, in the above scheme, the tensioning mechanism of the present application preferably adopts two groups of first guide rail segments a and second guide rail segments b and arranges them symmetrically. The two groups have two guide rail segment spacing adjustment devices. By adjusting the two guide rail segment spacing adjustment devices, the tensioning springs 4 at two locations that apply force to the two ends of the turning guide rail segment 1a can respectively push the first guide rail segments a in the two groups and expand outward against the turning guide segment 1a. The force applied at both ends makes the tensioning process more stable and the force effect better. It is best to adjust at two positions at the same time to achieve a better tensioning effect.

[0049] In order to better perform the tensioning operation, the first suspension plate c and the second suspension plate d may also be provided with a directional rod 5 extending in the direction of the conveying path between the conveying channel docking interface 101 of the first guide rail segment a and the second guide rail segment b. The directional rod 5 is preferably of course linear to ensure the linear tensioning, pushing and expansion between the first guide rail segment a and the second guide rail segment b, and better transmit it to the docking end of the turning guide segment 1a. Because the tangent directions of the two ends of the turning guide segment 1a are two parallel linear extension directions, the two groups of first guide segments a and second guide segments b perform a linear pushing operation at the two ends of the turning guide segment 1a during tensioning, and the first guide segment a in the two groups can be better pushed toward the two ends of the turning guide segment 1a through the linear force application method, so that the first guide segment a can expand outward with the turning guide segment 1a to extend the conveying path of the guide assembly and effectively tension the chain.

[0050] In a further design, the cross section of the conveying channel 10 is cross-shaped, where the cross section refers to the shape of the cross section of the conveying channel 10 in the direction of chain travel. The matching suspension chain of this shape can adopt a double guide wheel chain;

[0051] Each group of first guide rail segment a and second guide rail segment b can be provided with at least one directional rod 5 for passing the tensioning spring 4, and four directional rods 5 can be selected and respectively arranged in the four corner areas of the intersection of the conveying channel 10 of the first guide rail segment a and the second guide rail segment b, and the guide rail segment spacing adjustment device can be provided with two tensioning springs 4 respectively located in the lower left corner and lower right corner of the first guide rail segment a, and these two tensioning springs 4 are just enough for one directional rod 5 to pass through.

[0052] The above design can better guide the tensioning operation and make the tensioning process more stable and reliable.

[0053] This type of suspended chain conveying system is generally equipped with a conveying vehicle, which will move with the chain in the area below the guide rail, so the tensioning mechanism of the present application is further optimized as follows: a first guide rod segment e and a second guide rod segment f consistent with their respective conveying paths are respectively provided directly below the first guide rail segment a and the second guide rail segment b, a lower tensioning spring 44 is abutted between the first guide rod segment e and the second guide rod segment f, the first guide rod segment e is mounted on the first suspension plate c through a first cantilever 81, and the second guide rod segment f is mounted on the second suspension plate d through a second cantilever 82. The guide rod assembly is used for the conveyor vehicle to move forward. The first guide rod segment e and the second guide rod segment f are also segments of the guide rod assembly respectively. The guide rod assembly is also composed of various guide rod segments. The overall structural form is consistent with the guide rail assembly, except that the guide rod assembly is used for the conveyor vehicle to move forward and is composed of circular rod-shaped segments. This structure allows, when the upper first guide rod segment e and the second guide rod segment f are adjusted and tensioned by adjusting the adjusting nut 3, the lower side tensioning spring 44 below will also push the first guide rod segment e and the second guide rod segment f apart due to its own elastic force, so that the segment activity state of the guide rod assembly is consistent with the activity state of the guide rail assembly, and the conveying path of the guide rod assembly is consistent with the conveying path of the guide rail assembly, thereby ensuring the stable state of the conveyor vehicle being transported along the suspension chain.

[0054] In addition, the first guide rod segment e and the second guide rod segment f can both be hollow tubes and a guide nesting rod g is provided between the two ends of which are respectively sleeved in the first guide rod segment e and the second guide rod segment f, and the lower tensioning spring 4 is sleeved on the guide nesting rod g, so that the lower tensioning spring 4 can effectively generate a driving force on the first guide rod segment e and the second guide rod segment f in a linear manner;

[0055] The outer diameter of the lower tension spring 44 and the outer diameter of the first guide rod segment e have a size deviation of no more than 5 mm, that is, the outer diameters of the two are kept consistent as much as possible, so that the transport vehicle can pass through the lower tension spring 44 segment normally.

[0056] In this way, the design of the entire tensioning mechanism can be better compatible with the guide rail assembly, so that the guide rail assembly itself has the ability to tension the suspension chain. At the same time, when there is a conveyor vehicle in the application environment of the tensioning mechanism, it can be compatible with the guide rod assembly through structural design, so that the tensioning mechanism can not only ensure the tensioning of the chain, but also ensure that the operation of the conveyor vehicle is not hindered in any way, thereby ensuring the smoothness of operation and the service life of the entire suspension chain system.

Claims

1. A trolley type suspension chain conveying system, characterized in that: It comprises a guide rail assembly (h) and a guide rod assembly (s) which is entirely located below the guide rail assembly (h); a suspension chain (h1) is arranged on the conveying path of the guide rail assembly (h); a conveying vehicle (g1) which can slide on the guide rod assembly (s); a push hook (h2) is installed on the suspension chain (h1) for pulling the conveying vehicle (g1) forward; a sub-conveying line (k) with two ends respectively connected to two positions of the guide rod assembly (s) is arranged in the area surrounded by the guide rod assembly (s); and a carrying rod (g11) for carrying goods is provided on the conveying vehicle (g1); The guide rail assembly (h) has at least one climbing guide rail section (h0), and a guide bar (h01) for the push hook (h2) to climb is installed on the lower side of the climbing guide rail section (h0); The guide bars (h01) are arranged in two left and right sections, and a guide groove is formed in the middle for limiting and guiding the left and right sides of the push hook (h2); The conveying system further comprises at least one set of first guide rail segments (a) and second guide rail segments (b) arranged adjacent to each other on the guide rail assembly conveying path and each having a conveying channel (10) for the suspension chain to pass through, and a guide rail segment spacing adjustment device capable of extending the spacing between the conveying channel docking interfaces (101) adjacent to each other on the guide rail assembly conveying path of the first guide rail segment (a) and the second guide rail segment (b) so as to extend the guide rail assembly conveying path; The conveying system further comprises a first suspension plate (c) and a second suspension plate (d) which are respectively mounted on the periphery of the first guide rail section (a) and the second guide rail section (b) and are respectively used to suspend the first guide rail section (a) and the second guide rail section (b), and a screw rod (2) which is passed through the first suspension plate (c) and the second suspension plate (d) and extends along the conveying path direction between the conveying channel docking interface (101) of the first guide rail section (a) and the second guide rail section (b), wherein the screw rod (2) is disposed on the front and rear sides of the first suspension plate (c). The front and rear sides of the second suspension plate (d) are both provided with adjustment nuts (3), and the guide rail segment spacing adjustment device also includes a tensioning spring (4) at both ends of which at least a portion abuts against the end surface of the conveying channel docking interface (101) of the first guide rail segment (a) and at least a portion abuts against the end surface of the conveying channel docking interface (101) of the second guide rail segment (b), and at least a portion of the two ends of the tensioning spring (4) abuts against the first suspension plate (c) and at least a portion abuts against the second suspension plate (d).

2. A trolley type suspension chain conveying system according to claim 1, characterized in that: The two ends of the carrying rod (g11) are respectively provided with support arms (g12) extending upward, and the support arms (g12) are provided with pulleys (g13) capable of sliding on the guide rod assembly (s) and the upper part of the sub-conveyor line (k). The carrying rod (g11) is maintained below the guide rod assembly (s) or the sub-conveyor line (k) between the support arms (g12) at its two ends.

3. The trolley type suspension chain conveying system according to claim 1, characterized in that: A sorting mechanism (j) capable of switching between its own path and the path of the sub-conveyor line (k) is arranged on the conveying path of the guide rod assembly (s); and a lever (g14) capable of communicating with another position of the guide rod assembly (s) is installed at one end of the sub-conveyor line (k) that deviates from the sorting mechanism (j).

4. The trolley type suspension chain conveying system according to claim 1, characterized in that: The invention also comprises a driving mechanism (m) for driving the suspension chain (h1) to move forward and a tensioning mechanism (n) for tensioning the suspension chain (h1).

5. A trolley type suspension chain conveying system according to claim 4, characterized in that: The tensioning mechanism (n) is arranged at a 180-degree turning angle of the guide rail assembly (h).

6. A trolley type suspension chain conveying system according to claim 4, characterized in that: A shift fork (m0) capable of driving the suspension chain (h1) to move is installed on the drive chain of the drive mechanism (m).

7. The trolley type suspension chain conveying system according to claim 1, characterized in that: The suspension chain (h1) is a double guide wheel chain.

8. The trolley type suspension chain conveying system according to claim 6, characterized in that: The guide rail assembly (h) comprises a plurality of guide rail segments (1), wherein the guide rail segment (1) has a conveying channel (10) for the suspension chain (h1) to pass through and has a cross-shaped cross section.

9. A trolley type suspension chain conveying system according to claim 8, characterized in that: The conveying channel (10) is in communication with the lower region of the guide rail section (1), and a push hook connecting plate (h20) is installed on the chain link of the suspension chain (h1) and passes downward through the conveying channel (10) and is used to fix the push hook (h2).

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