CN117302880B

CN117302880B - Suspension conveying device

Info

Publication number: CN117302880B
Application number: CN202311365443.6A
Authority: CN
Inventors: 陈晨
Original assignee: Chengde Guangda Conveyor Co ltd
Current assignee: Chengde Guangda Conveyor Co ltd
Priority date: 2023-10-20
Filing date: 2023-10-20
Publication date: 2024-03-01
Anticipated expiration: 2043-10-20
Also published as: CN117302880A

Abstract

The embodiment of the invention provides a suspension conveying device, which comprises a conveying track and a plurality of conveying trolleys arranged on the conveying track; the conveying trolley comprises a trolley body, a front shovel hinged to the front end of the trolley body and a rear shovel fixedly connected to the rear end of the trolley body; the back shovel is provided with a plurality of back shovel pin shafts which are arranged front and back, and the back shovel pin shafts are horizontally arranged along the left-right direction of the conveying trolley; the front shovel comprises a first fluted disc, the outer edge of the first fluted disc is provided with a plurality of meshing teeth, and when two adjacent conveying trolleys in front and back are contacted, the meshing teeth of the first fluted disc are meshed with the pin shaft of the rear shovel; when the front shovel turns backwards, a brake device in the conveying trolley is triggered. According to the technical scheme, the brake triggering device is designed into a mode that the pin shaft is meshed with the fluted disc, and the stability of the overturning moment is maintained in the overturning process of the fluted disc, so that the brake device can be reliably triggered, and the problem that front and rear adjacent conveying trolleys collide due to the fact that the brake device cannot be started is effectively avoided.

Description

Suspension conveying device

Technical Field

The invention relates to the technical field of automobile production, in particular to a suspension conveying device, and more particularly relates to a brake triggering device of the suspension conveying device.

Background

On the existing automobile production assembly line, a hanging conveying device is generally adopted for conveying materials. As shown in fig. 16, a plurality of conveying trolleys 1 run along a conveying guide rail 3 through a driving wheel group 4 at the top of the conveying trolleys, and materials such as tools, accessories and the like can be mounted below the conveying trolleys 1 through hooks. Since the production and assembly process often has a beat requirement, materials are required to be conveyed to a corresponding station according to the beat requirement, and the conveying trolley 1 is difficult to automatically reach the beat requirement in the conveying process, a stacking structure is required to be arranged at a certain station place, for example, as shown in fig. 16, a stopper is arranged on a conveying guide rail 3 positioned at the set place, when the stopper 2 is instructed to act, the stopper stretches out from top to bottom, the rear conveying trolley 1 is stopped, when the stopper 2 contacts with the stopper, a turnover device 12 arranged at the head position of the conveying trolley 1 is turned backwards through a mechanical blocking function, after the turnover device 12 is turned to a preset angle range, a connecting rod type braking device or a stay wire type braking device (see CN 108147039A) arranged inside the conveying trolley 1 can be triggered, so that a driving wheel set 4 is locked and does not move forwards any more, and then the first conveying trolley 1 is stopped at the position of the stopper 2, after the next conveying trolley 1 arrives, the turnover device 12 at the front part of the stopper contacts with a push rod 11 fixedly arranged at the tail part of the first conveying trolley 1, so that the second conveying trolley 1 is stopped at the rear of the first conveying trolley 1, namely, the conveying trolley 1 can be stopped in turn; when the stopper 2 is acted by a release instruction, the stopper is reset from bottom to top, so that the turnover device 12 of the first conveying trolley 1 is reset under the action of an internal reset spring, the driving wheel group 4 at the top of the stopper is unlocked, the conveying trolley 1 continues to move forwards along the conveying guide rail 3, and correspondingly, the turnover device 12 arranged at the front end of the second conveying trolley 1 is reset because the turnover device is not pressed by the ejector rod 11 at the tail part of the first conveying trolley 1, and the second conveying trolley 1 starts to move forwards, so that the process is the 'release' of the stacking structure. According to the requirements of the production process, normally, when the first conveyor car 1 is completely moved out of the action range of the stopper 2 and the second conveyor car 1 has not yet reached the position of the stopper 2, the stopper 2 repeats the previous operation and the stopper is lowered again, so that the turning device 12 in front of the second conveyor car 1 contacts with the stopper and the second conveyor car 1 is parked at the stopper 2, and the subsequent conveyor cars 1 are parked behind the second conveyor car in turn, that is, at this time, the second conveyor car 1 replaces the original first conveyor car 1, that is, only a predetermined number (usually one) of conveyor cars 1 are released after every set time of the stacking structure, so that the conveyor car 1 starts from the position of the stopper 2 and runs strictly at a predetermined interval, thereby meeting the beat requirement of the assembly line. In the working process of the stacking structure, the turnover device 12 and the ejector rod 11 play a role of a brake triggering device.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art:

the current turning device is being promoted to the in-process of upset by the ejector pin, and the turning moment constantly diminishes, can appear turning device unable problem in place of turning over sometimes, because brake equipment can't start this moment, is located the travelling bogie at rear and can not park and then directly strike the travelling bogie in the place ahead to lead to spare part impaired. Therefore, how to improve the stability of the brake triggering device and avoid the unexpected situation caused by the failure of the conveying trolley to brake is a problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a suspension conveying device, which aims to solve the problems that a brake triggering device is easy to go out and cannot turn over in place in the existing suspension conveying device.

To achieve the above object, an embodiment of the present invention provides a suspension conveying apparatus, including: a conveying track and a plurality of conveying trolleys arranged on the conveying track; the conveying trolley comprises a trolley body, a front shovel hinged to the front end of the trolley body and a rear shovel fixedly connected to the rear end of the trolley body; the back shovel is provided with a plurality of back shovel pin shafts which are arranged front and back, and the back shovel pin shafts are horizontally arranged along the left-right direction of the conveying trolley; the front shovel comprises a first fluted disc, the outer edge of the first fluted disc is provided with a plurality of meshing teeth, and when two adjacent conveying trolleys in front and back are contacted, the meshing teeth of the first fluted disc are meshed with the pin shaft of the rear shovel; when the front shovel turns backwards, a brake device in the conveying trolley is triggered.

The technical scheme has the following beneficial effects:

in the technical scheme, the prior flap type brake triggering device is changed into a mode of meshing the pin shaft with the fluted disc, and the gear transmission mode is simulated through the cooperation of the fluted disc and the cylindrical pin shaft, so that a plurality of teeth are sequentially contacted with the corresponding pin shaft in the process of overturning the fluted disc, the distance from the stressed point of the fluted disc to the hinge shaft (namely the moment arm) cannot be greatly changed, the stability of overturning moment is basically maintained, the fluted disc can be overturned in place, the reliable triggering of the brake device is further ensured, and the problem that the front and back adjacent conveying trolleys collide due to the fact that the brake device cannot be started is effectively avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a hanging conveyor in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure of a transport cart in an embodiment of the invention;

FIG. 3 is a schematic view of a first stage of the front blade being pushed by the rear blade in an embodiment of the present invention;

FIG. 4 is a schematic view showing a second stage of the front shovel pushing process by the rear shovel in the embodiment of the present invention;

FIG. 5 is a schematic view of a third stage in the process of pushing the front blade by the rear blade in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of a fourth stage in the process of pushing the front blade by the rear blade in accordance with an embodiment of the present invention;

FIG. 7 is a schematic diagram of the positional relationship between the first toothed disc and the backhoe pin in an embodiment of the invention;

FIG. 8 is a phantom schematic of the rear blade mated with the front blade if the rear blade is designed in the manner of a stopper pin;

FIG. 9 is a schematic view of a lateral structure of a hanging conveyor (with the stopper cylinder not extended) according to an embodiment of the present invention;

FIG. 10 is a schematic view of the lateral structure of a hanging conveyor (with the stopper cylinder extended) according to an embodiment of the present invention;

FIG. 11 is a schematic view of the structure of a front shovel according to an embodiment of the present invention;

FIG. 12 is a schematic view of a first stage of the front blade being pushed by the stop in an embodiment of the invention;

FIG. 13 is a second stage schematic of the front blade being pushed by the stop in an embodiment of the invention;

FIG. 14 is a schematic view of a third stage in the pushing process of the front blade by the stop in an embodiment of the invention;

FIG. 15 is a fourth stage schematic view of a front blade being pushed by a stop in an embodiment of the invention;

FIG. 16 is a schematic view of a first stage of the prior art flip device being pushed by a ram;

FIG. 17 is a schematic view of a second stage of the prior art flip device being pushed by the ejector pins;

FIG. 18 is a schematic view of a third stage of the prior art flipping mechanism being pushed by a ram;

reference numerals: 1. a conveying trolley; 11. a push rod; 12. a turnover device; 13. a front shovel; 14. a first toothed disc; 141. a first engagement tooth; 142. a second meshing tooth; 143. a third meshing tooth; 15. a second toothed disc; 151. a fourth meshing tooth; 152. a fifth meshing tooth; 153. a sixth meshing tooth; 16. a rear shovel; 161. a first backhoe pin; 162. a second backhoe pin; 163. a third back shovel pin; 164. a fourth backhoe pin; 17. a damper; 2. a stopper; 21. a first stopper pin; 22. a second stopper pin; 23. a third stopper pin; 24. a fourth stopper pin; 25. a fifth stopper pin; 3. a conveying rail; 4. and driving the wheel set.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The reason why the foregoing problem exists in the prior art is that, during the action of the brake triggering device (i.e. the turning device 12 and the ejector rod 11 in the prior art) (i.e. the ejector rod 11 pushes the turning device 12 to turn over), the turning moment is continuously reduced, and the problem that the turning device cannot turn over in place sometimes occurs, so that the brake device cannot be started, and the detailed process is as follows:

as shown in fig. 16, at this time, one transport cart 1 is already parked at the stopper 2, the second transport cart 1 is also moved, at this time, the ejector rod 11 at the tail of the first transport cart 1 starts to contact with the turning device 12 of the second transport cart 1 at point B, as seen from the figure, the hinge axis of the flat-shaped turning device 12 is point a, and the subsequent turning is also necessarily centered at point a, so that the moment arm of the turning moment acting on the turning device 12 is the length between AB, and the thrust is basically perpendicular to the turning device 12; when the rear conveying trolley 1 continues to move forwards, the position of the point B changes to the position shown in fig. 17, obviously, the length AB in fig. 17 is smaller than that of the length AB in fig. 16, and at the moment, as the ejector rod 11 is no longer perpendicular to the plate surface of the turnover device 12, the included angle between the ejector rod 11 and the plate surface becomes smaller, the thrust can be divided into a component perpendicular to the plate surface and a component outwards along the plate surface according to the mechanical principle, and only the component perpendicular to the plate surface can generate effective turnover acting force for the turnover device 12, and the torque=acting force×moment arm, so that the turnover moment is already reduced at the moment; when the rear transporting carriage 1 continues to move forward, the position of the point B moves further to the position shown in fig. 18, the length AB in fig. 18 decreases further, and the angle between the jack 11 and the turning device 12 decreases further due to the increase of the deflection angle of the turning device 12, the component perpendicular to the plate surface of the turning device 12 decreases further, that is, the effective force decreases, so that the turning moment becomes smaller, at this time, it is possible that the turning device 12 takes a long time to turn in place, the brake device inside the transporting carriage 1 cannot be stopped in place by one step, and even the transporting carriage 1 at the rear cannot be stopped by the brake device finally, resulting in collision between the front and rear vehicles. Although the ejector pin 11 in fig. 16 adopts a double-layer structure of a stepped up and down shape as a modification measure, it is still not effective in solving the problem.

As shown in fig. 1 and 2, an embodiment of the present invention provides a suspension conveying device, including: a conveying track 3 and a plurality of conveying trolleys 1 arranged on the conveying track, wherein the conveying trolleys 1 run along the conveying track 3; the conveying trolley 1 comprises a trolley body, a front shovel 13 hinged to the front end of the trolley body and a rear shovel 16 fixedly connected to the rear end of the trolley body; the back shovel 16 is provided with a plurality of back shovel pin shafts which are arranged front and back, and the back shovel pin shafts are horizontally arranged along the left-right direction of the conveying trolley 1; the front shovel 13 comprises a first fluted disc 14, the outer edge of the first fluted disc 14 is provided with a plurality of meshing teeth, and when two front and rear adjacent conveying trolleys 1 are contacted, the meshing teeth of the first fluted disc 14 are meshed with a rear shovel pin shaft; when the front shovel 13 turns backwards, a brake device inside the conveying trolley 1 is triggered.

In order to solve the foregoing problem, in the embodiment of the present invention, the original sliding fit manner of the rod and the plate is changed to an approximately gear fit manner, that is, the brake triggering device is changed to a rear shovel 16 and a front shovel 13, and a plurality of engaging teeth are arranged on the front shovel 13, so that the rear shovel 16 is not provided with a corresponding tooth-shaped structure because of no rotation, but is still provided with a rod-shaped structure like the prior art, but a plurality of rear shovel pin shafts arranged front and back are required to be provided on the rod-shaped structure. In this way, when the rear shovel 16 and the front shovel 13 are contacted, the plurality of meshing teeth on the front shovel 13 can be matched with the rear shovel pin shaft successively, and the front shovel 13 is manufactured according to a standard gear pattern (but is a fan-shaped structure instead of a complete gear), and the tooth-shaped structures are all arranged at the edges, so that the distances between the tooth-shaped structures and the center of the gear (namely the hinge axis A' in fig. 3) are equal, in the whole process that the rear shovel 16 pushes the front shovel 13 to overturn, the plurality of meshing teeth are sequentially contacted and meshed with the corresponding rear shovel pin shaft, wherein the contact position of the meshing teeth and the pin shaft is the meshing point, so that the moment arm (namely the distance between the meshing point and the hinge axis of the front shovel 13) in the whole overturning process is kept within a relatively stable numerical range, and the stress direction of the meshing teeth is not changed greatly in the overturning process as in the prior art, so that the overturning moment can be controlled within a small range, the front shovel 13 can be reliably overturned, the braking device can be reliably triggered, and the driving wheel set 4 can not continue to advance.

Further, the first tooth plate 14 is provided with a first engaging tooth 141, a second engaging tooth 142 and a third engaging tooth 143 from front to back; a plurality of rear shovel pin shafts are arranged on the rear shovel 16; the distance between the meshing point of the first meshing tooth 141 (the position where the meshing tooth contacts with the corresponding pin shaft) and the hinge shaft is equal to the distance between the meshing point of the second meshing tooth 142 and the hinge shaft, the distance is the moment arm when the front shovel 13 turns over, and when the moment arms are equal, the fluctuation of the turning moment applied to the front shovel 13 can be effectively reduced; the distance between the engagement point of the third engagement tooth 143 and the hinge axis is smaller than the distance between the engagement point of the second engagement tooth 142 and the hinge axis, that is, the position of the rear shovel pin shaft at the rearmost side (namely, the fourth rear shovel pin shaft 164 described later) is slightly lower than the horizontal height of several rear shovel pin shafts at the front side, so that when the front shovel 13 fails to strictly reach the initial state angle shown in fig. 2, the third engagement tooth 143 can also obtain a corresponding rear shovel pin shaft, and the situation that the rear shovel 16 and the front shovel 13 cannot be engaged when just contacting is avoided; and as long as the third engagement tooth 143 at the rearmost side can be in contact with the corresponding back shovel pin, the other engagement teeth can be in correct sequential contact with the corresponding back shovel pin.

In addition, the front shovel 13 is designed to be a fan-shaped structure pointing to the front of the vehicle body, and the front shovel 13 is not required to be made into a full-gear (360 DEG) shape through analysis and actual measurement, and the front shovel 13 can reliably work due to the fact that the front shovel 13 is provided with 1/4 gear (namely 90 DEG fan-shaped), so that the fan-shaped angle can be properly increased or decreased on the basis of 90 DEG, and the fan-shaped angle can be controlled between 70 DEG and 120 deg. The unnecessary parts may interfere with other parts on the vehicle body, in addition to increasing unnecessary weight, thereby adversely affecting the overall space design.

Further, a first back shovel pin 161, a second back shovel pin 162, a third back shovel pin 163 and a fourth back shovel pin 164 are arranged on the back shovel 16 from front to back; in the process of meshing the meshing teeth of the first fluted disc (14) with the back shovel pin shafts, the fourth back shovel pin shaft (164) is positioned in a tooth groove between the third meshing tooth (143) and the second meshing tooth (142), and the second back shovel pin shaft (162) and the third back shovel pin shaft (163) are positioned in the tooth groove between the second meshing tooth (142) and the first meshing tooth (141); the first back shovel pin shaft (161) is positioned at the front side of the first meshing tooth (141).

Fig. 3, 4, 5, and 6 are schematic views illustrating the entire process of the rear shovel 16 pushing the first toothed disc 14 until it turns over: in the position shown in fig. 3, the rear conveying trolley 1 starts to contact the conveying trolley 1 in the front stop state in the forward moving process, at this time, the front side surface of the third meshing tooth 143 contacts with the rear side surface of the fourth back shovel pin shaft 164, that is, the fourth back shovel pin shaft 164 pushes the third meshing tooth 143 to rotate clockwise (clockwise for the arrangement mode of the figure, the arrangement mode can be actually determined according to the overall layout condition of the suspension conveying device), at this time, the arm of the overturning moment is the distance from the contact point on the tooth surface of the third meshing tooth 143 to the a', and the direction of the acting force is basically horizontal backward; when the first tooth plate 14 is turned to the position shown in fig. 4, the third engaging tooth 143 starts to be out of contact with the fourth back-shovel pin 164, the front side surface of the second engaging tooth 142 is in contact with the back side surface of the third back-shovel pin 163, that is, the main stress point is no longer located on the third engaging tooth 143 but is transferred to the second engaging tooth 142, the third back-shovel pin 163 pushes the second engaging tooth 142 to rotate clockwise, the moment arm of the turning moment is the distance from the contact point on the tooth surface of the second engaging tooth 142 to the a', and the direction of the acting force is basically horizontal backward; when the first fluted disc 14 continues to overturn to the position shown in fig. 5, the first engaging tooth 141 rotates between the first back shovel pin 161 and the second back shovel pin 162, that is, simultaneously engages with the first back shovel pin 161 and the second back shovel pin 162, at this time, the first engaging tooth 141 and the second engaging tooth 142 are simultaneously pushed, because the pitch circle diameters of the engaging teeth are the same, the force arm is still the same as the previous force arm, the force bearing direction of the second engaging tooth 142 is changed from horizontal to backward to downward right to incline by about 45 degrees, the effective acting force on the force arm becomes smaller, but at the same time, the tooth surface of the engaging tooth of the first engaging tooth 141 is also pushed to upward right to incline by 45 degrees, and the effective acting force on the force arm is still similar to the previous force arm after accumulating with the effective acting force of the second engaging tooth 142, so the whole overturning moment is not obviously changed; further, when the first tooth plate 14 continues to turn over, the second tooth 142 also starts to break away from contact with the rear shovel 16, and the first tooth 141 alone receives the pushing force, at this time, the arm of force is unchanged, and the force is also close to the horizontal direction, so that the previous turning moment is continuously maintained. After that, the front shovel 13 triggers the braking device of the conveying trolley 1, namely, when the conveying trolley 1 positioned at the rear is stopped immediately when the position is shown in fig. 6, and the relative position relation shown in fig. 6 is maintained between the two vehicles.

Therefore, in the process, as the force arm and the effective acting force are not obviously changed, the overturning moment is stable all the time, the problem that the overturning moment is smaller and smaller in the prior art is avoided, the brake device is effectively ensured to be triggered, and the collision loss caused by the fact that the rear vehicle is not stopped is avoided.

Further, the first back hoe pin 161, the second back hoe pin 162, and the third back hoe pin 163 are aligned in the inner-outer direction, and the fourth back hoe pin 164 is located inside the first back hoe pin 161; the first and second teeth 141 and 142 are aligned in the inner and outer directions, and the third tooth 143 is located inside the first tooth 141.

The positions of the back shovel pins are different along the inner and outer directions of the conveying track 3, as shown in fig. 7, the fourth back shovel pin 164 is further inside than the other back shovel pins, and the third engaging teeth 143 are further inside than the first engaging teeth 141 and the second engaging teeth 142, so that the fourth back shovel pin 164 and the first engaging teeth 141 and the second engaging teeth 142 implement a laterally staggered arrangement, which is to avoid errors occurring after the conveying trolley 1 is released, and the problem is specifically described as follows:

when the transfer carriages 1 stopped at the stopper 2 need to be put in order, as described above, one transfer carriage 1 is usually released at a time (i.e., the first transfer carriage 1 stopped by the stopper 2), and when the front carriage moves, the rear shovel 16 of the front carriage drives the front shovel 13 of the rear carriage to reversely rotate (counterclockwise rotation), so that the braking state of the second transfer carriage 1 is contacted and the front shovel 13 of the second transfer carriage 1 is restored to the free state shown in fig. 3. The process is not completed in one step, the release process is opposite to the triggering process of the braking device, namely, the matching relationship between the rear shovel 16 of the front vehicle and the front shovel 13 of the rear vehicle is the process of fig. 6-5-4-3, so that the front shovel 13 is reset in anticlockwise rotation, namely, the front side surface of the second rear shovel pin shaft 162 pushes the first meshing tooth 141 to rotate, when the front side surface passes the position shown in fig. 5, the first meshing tooth 141 is not contacted with the second rear shovel pin shaft 162 and the first rear shovel pin shaft 161 any more, and then the state shown in fig. 4 is reached, at the moment, the braking device of the second conveying trolley 1 is unlocked, the second conveying trolley 1 can move forwards, and the first fluted disc 14 can continue to rotate anticlockwise to the initial position shown in fig. 3 under the action of the built-in reset spring. After the released first transport cart 1 completely passes over the position of the stopper 2, the stopper 2 is operated again, and the second transport cart 1 is ready to be stopped while being caught in the moving track of the transport cart 1.

If the back shovel 16 is designed in the form shown in fig. 8, that is, the back shovel pins are uniformly distributed in front and back, and there is no position difference in the inner and outer directions (that is, the subsequent stopper pin), then in the process of releasing the first conveying trolley 1, when the first fluted disc 14 rotates to the position shown in fig. 8 (corresponding to the position shown in fig. 4), the brake of the second conveying trolley 1 is unlocked in the position, the vehicle can run, and at the same time, the two vehicles are not completely separated (because the second meshing teeth 142 are located between the third stopper pin 23 and the fourth stopper pin 24, and if there is no fourth stopper pin 24, the second meshing teeth are also clamped between the third stopper pin 23 and the fifth stopper pin 25), so that the first fluted disc 14 cannot continue to rotate anticlockwise, the fourth stopper pin 24 (or the fifth stopper pin 25 which is not staggered inside and outside) pushes the second engaging tooth 142 forward, that is, the first fluted disc 14 and the rear shovel 16 cannot be separated normally, and since the first conveying trolley 1 has a certain speed and the second conveying trolley 1 just begins to accelerate, a situation that the first conveying trolley 1 "drags" the second conveying trolley 1 to move forward together is formed, that is, the second conveying trolley 1 is additionally subjected to the pulling force of the first conveying trolley 1 besides self acceleration, so that the actual operation speed of the second conveying trolley 1 at this stage is higher than expected, and therefore, when the stopper 2 acts, the front end of the second conveying trolley 1 has passed the position of the stopper 2, so that the second conveying trolley 1 cannot stop; there is a possibility that even if the front end of the second transporting carriage 1 does not pass the position of the stopper 2, the front shovel 13 cannot be kept in the state shown in fig. 8 by being unable to be engaged with the third stopper pin 23, and cannot be restored to the initial position shown in fig. 2 and 3, so that the rear shovel cannot be properly engaged with the stopper 2, and the front shovel still cannot be properly stopped at the stopper 2. Therefore, the back hoe 16 cannot take the form of a stopper pin.

To solve this problem, in the present solution, for the rear shovel 16, instead of the scheme of five pins of the subsequent stopper pin, only four pins are adopted, and the fourth rear shovel pin 164 that must be kept is translated inward and outward so as to be staggered from the front three rear shovel pins, that is, the pattern of fig. 7, so as to ensure that the second engagement tooth 142 will not contact with the fourth rear shovel pin 164 no matter what angle the second engagement tooth rotates to, thereby ensuring that after the first conveying trolley 1 is put in shape, as long as the front shovel 13 is turned to the state shown in fig. 4, the two vehicles can be completely separated, and the front vehicle will not interfere with the normal operation of the rear vehicle.

Further, the suspension conveying device further comprises a stopper 2 arranged on the inner side of the conveying track 3; the stopper 2 includes a horizontally arranged cylinder, and when the cylinder is pushed out from inside to outside, the stopper 2 is located on the moving path of the conveying cart 1.

As shown in fig. 9 and 10, the stopper 2 is attached to the side of the conveying rail 3, preferably to the inner side, so as not to affect the work of the operator (the side where the operator directly contacts is the outer side). When the cylinder is extended, a part of the stopper 2 (stopper pin) will come into abutment with the rear conveyor carriage 1, after which the conveyor carriage 1 is stopped at the stopper 2 by triggering the brake device of the conveyor carriage 1.

Further, the stopper 2 has a plurality of stopper pins distributed back and forth; the front shovel 13 further comprises a second fluted disc 15 fixedly connected to the inner side of the first fluted disc 14, and a plurality of meshing teeth are arranged on the outer edge of the second fluted disc 15; when the stopper 2 is contacted with the conveying trolley 1, the meshing teeth of the second fluted disc 15 are meshed with the stopper pin shafts; and the meshing points of the meshing teeth of each second fluted disc 15 are equidistant from the hinge shaft, so as to reduce the fluctuation of the overturning moment suffered by the front shovel 13.

In order to achieve the purpose, the front shovel 13 is designed into a double-layer structure (a third meshing tooth 143 is not coplanar with the first tooth disc 14 but is a part belonging to the first tooth disc 14) formed by the first tooth disc 14 and the second tooth disc 15 shown in fig. 11, the first tooth disc 14 on the outer side is used for realizing the braking between two adjacent conveying trolleys 1, the second tooth disc 15 on the inner side is used for realizing the braking between the stopper 2 and the conveying trolleys 1, and the stopper pin shafts and the rear shovel pin shafts respectively matched with the two tooth discs are staggered in the inner and outer directions due to the internal and external distribution of the two tooth discs, so that the stopper pin shafts and the rear shovel pin shafts do not interfere with each other. As shown in fig. 10, when the cylinder extends, the stopper pin shaft is blocked in front of the second fluted disc 15, and the stopper pin shaft are matched with the meshing teeth through the pin shaft to realize the overturning of the second fluted disc 15, so as to trigger the brake device inside the conveying trolley 1. The second toothed disc 15 is similar to the first toothed disc 14 in structure, is a sector-shaped incomplete gear, and in the process of contacting with the stopper pin shaft, the contact positions (engagement points) of the respective engagement teeth and the corresponding pin shaft are all located on the same circular arc, so that the stability of the overturning moment is ensured.

Further, a fourth engaging tooth 151, a fifth engaging tooth 152 and a sixth engaging tooth 153 are arranged on the second fluted disc 15 from front to back, and a first stopper pin 21, a second stopper pin 22, a third stopper pin 23, a fourth stopper pin 24 and a fifth stopper pin 25 are arranged on the stopper 2 from front to back; during engagement of the engagement teeth of the second toothed disc 15 with the stopper pins, the third stopper pin 23, the fourth stopper pin 24 and the fifth stopper pin 25 are all positioned in tooth slots between the sixth engagement teeth 153 and the fifth engagement teeth 152; the second stopper pin 22 is positioned in a tooth space between the fifth tooth 152 and the fourth tooth 151; the first stopper pin 21 is located at the front side of the fourth engagement tooth 151.

Similar to the cooperation of the front shovel 13 and the rear shovel 16, the stopper pin shafts are sequentially contacted with corresponding meshing teeth during the cooperation of the stopper pin shafts and the second fluted disc 15, and the process is as shown in fig. 12, 13, 14 and 15: when the stopper 2 is just contacted with the second toothed disc 15, as shown in fig. 12, the sixth engaging tooth 153 is contacted with the fifth stopper pin 25, and the fifth stopper pin 25 pushes the sixth engaging tooth 153 to rotate the second toothed disc 15 clockwise; when the position shown in fig. 13 is reached, the sixth engagement tooth 153 is no longer in contact with the fifth stopper pin 25 and the fifth engagement tooth 152 moves between the second stopper pin 22 and the third stopper pin 23, thereby pushing the second toothed disc 15 to continue rotating clockwise; continuing to rotate to the position shown in fig. 14, the fourth engagement teeth 151 also come into contact with the corresponding pins (the first stopper pin 21, the second stopper pin 22), i.e., at this time, both the fourth engagement teeth 151 and the fifth engagement teeth 152 are subjected to pushing force; the fifth toothing 152 is then no longer in contact with the corresponding stopper pin, at which time the fourth toothing 151 alone is subjected to a thrust and, after reaching a predetermined angle, the braking means inside the trolley 1 are triggered by the second toothed disc 15, so that the trolley 1 rests at the stopper 2, as shown in fig. 15.

Five pins are uniformly distributed in the stopper pin shafts, wherein the structures and the intervals of the first stopper pin shaft 21, the second stopper pin shaft 22 and the third stopper pin shaft 23 are the same as those of the first three pin shafts of the back shovel pin shaft, the fifth stopper pin shaft 25 is also the same as the first four pin shafts of the back shovel pin shaft and is basically similar in structure and position (the position of the fourth back shovel pin shaft 164 is slightly lower), but compared with the back shovel 16, the fourth stopper pin shaft 24 is more, and the back shovel 16 is empty, so that the manufacturing cost is mainly reduced, and the linear and uniformly-distributed stopper pin shafts are more convenient to process.

When the conveying trolley is released, the cylinder drives the stopper pin shaft to axially move from outside to inside to the position shown in fig. 9, so that the stopper pin shaft is no longer in contact with the second fluted disc 15, at the moment, under the action of the internal reset spring, the second fluted disc 15 automatically turns anticlockwise to an initial state, and the brake device of the conveying trolley 1 is released, so that the conveying trolley 1 starts to move forwards. The pin shafts are not required to be matched with corresponding meshing teeth one by one in the releasing process, so that the pin shafts of the stopper are uniformly distributed in sequence, and the problem of mutual interference when the two vehicles are released is avoided.

Further, the first tooth plate 14 is flush with the front side of the second tooth plate 15, the first tooth plate 14 is flush with the rear side of the second tooth plate 15, the fourth tooth 151 is arranged side by side with the first tooth 141, the sixth tooth 153 is arranged side by side with the third tooth 143, and the fifth tooth 152 and the second tooth 142 are staggered in the front-rear direction.

Since the first and second toothed plates 14 and 15 are coaxially disposed and fixedly coupled together to form the front shovel 13, it is most preferable that the first and second toothed plates 14 and 15 correspond to each other on both sides thereof, and that the fourth and first engagement teeth 151 and 141 are also aligned in the front-rear direction (i.e., mirrored left-right in the inner-outer direction) to ensure that they operate in the same manner and order, as shown in fig. 11. The middle meshing teeth (the fifth meshing tooth 152 and the second meshing tooth 142) are arranged at different positions, so that the first fluted disc 14 and the second fluted disc 15 have different shapes, and the first fluted disc 14 and the second fluted disc 15 can be effectively distinguished from each other, and mistakes in assembly are avoided; simultaneously, first fluted disc 14 and second fluted disc 15 and corresponding round pin axle form two kinds of different cooperation modes, can avoid under extreme circumstances, two kinds of cooperation modes appear the cooperation mistake simultaneously, guarantee at least one kind can normal action, guarantee that whole transfer chain can not go out big problem.

Further, a shock absorber 17 is further arranged at the bottom of the rear end of the conveying trolley 1, and when the brake device is triggered, the shock absorber 17 is in contact with the conveying trolley 1 adjacent to the rear.

When two adjacent front and rear conveying trolleys 1 are to be parked together after the brake device of the rear conveying trolley 1 is operated, a certain amount of impact is inevitably generated on a rear shovel pin shaft of the rear shovel 16 by the meshing teeth on the front shovel 13 due to the inertia effect, and for this purpose, as shown in fig. 2, a shock absorber 17 can be arranged at the lower end of the tail part of each conveying trolley 1, so that the front end of the rear trolley is contacted with the shock absorber 17 of the front trolley when the vehicles are parked together, and the impact is eliminated. Meanwhile, the shock absorber 17 can reduce the impact between the front and rear vehicles as much as possible under the unexpected condition that the brake device of the rear conveying trolley 1 cannot be started, so as to reduce the loss.

Further, in the first toothed disc 14, the tooth heights of the first engaging tooth 141 and the second engaging tooth 142 are equal, and the tooth height of the third engaging tooth 143 is greater than the tooth height of the first engaging tooth 141; in the second toothed disc 15, the fourth engagement teeth 151 are equal in tooth height to the fifth engagement teeth 152, and the sixth engagement teeth 153 are greater in tooth height than the fourth engagement teeth 151.

The comparison of the two meshing teeth is outstanding, so that when the front shovel 13 is not fully restored to the initial position shown in fig. 2, a small angle difference can still enable the rearmost pin shaft to touch the rearmost meshing teeth, the front shovel 13 can be turned over, and the situation that a braking device cannot be triggered when the angle is incorrect is avoided, namely, the two high teeth play a certain compensation role. As long as the two rearmost teeth can be brought into contact with the corresponding pins, the other teeth can work normally in a predetermined order. Similarly, the fourth back hoe pin 164 is positioned lower than the first back hoe pin 161 to compensate for the offset, so as to ensure that the back hoe 16 can still cooperate with the initial position of the front hoe 13 with a small deviation.

In the embodiment of the invention, a larger number of meshing teeth can be arranged on the first fluted disc 14, so long as the number of the back shovel pin shafts and the first fluted disc 14 can be reasonably matched according to the working principle design of the technical scheme. Based on analysis and measurement, the simplest, most optimal way is to have four teeth in this particular embodiment.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. As will be apparent to those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. A hanging conveyor, comprising: a conveying track (3) and a plurality of conveying trolleys (1) arranged on the conveying track (3); the conveying trolley (1) comprises a trolley body, a front shovel (13) connected to the front end of the trolley body through a hinge shaft, and a rear shovel (16) fixedly connected to the rear end of the trolley body; the rear shovel (16) is provided with a plurality of rear shovel pin shafts which are arranged front and back, and the rear shovel pin shafts are horizontally arranged along the left-right direction of the conveying trolley (1); the front shovel (13) comprises a first fluted disc (14), the outer edge of the first fluted disc (14) is provided with a plurality of meshing teeth, and when two front and rear adjacent conveying trolleys (1) are contacted, the meshing teeth of the first fluted disc (14) are meshed with the rear shovel pin shaft; when the front shovel (13) turns backwards, a brake device in the conveying trolley (1) is triggered.

2. The hanging conveyor as claimed in claim 1, characterized in that the first toothed disc (14) is provided with a first engagement tooth (141), a second engagement tooth (142) and a third engagement tooth (143) from front to back; a plurality of rear shovel pin shafts are arranged on the rear shovel (16); the distance between the meshing point of the first meshing tooth (141) and the hinging shaft is equal to the distance between the meshing point of the second meshing tooth (142) and the hinging shaft, so that fluctuation of overturning moment borne by the front shovel (13) is reduced; the distance between the engagement point of the third engagement tooth (143) and the hinge shaft is smaller than the distance between the engagement point of the second engagement tooth (142) and the hinge shaft.

3. The suspension conveying device according to claim 2, wherein the back shovel (16) is provided with a first back shovel pin (161), a second back shovel pin (162), a third back shovel pin (163) and a fourth back shovel pin (164) from front to back; in the process of meshing the meshing teeth of the first fluted disc (14) with the back shovel pin shafts, the fourth back shovel pin shaft (164) is positioned in a tooth groove between the third meshing tooth (143) and the second meshing tooth (142), and the second back shovel pin shaft (162) and the third back shovel pin shaft (163) are positioned in the tooth groove between the second meshing tooth (142) and the first meshing tooth (141); the first back shovel pin shaft (161) is positioned at the front side of the first meshing tooth (141).

4. A hanging conveyor as claimed in claim 3, wherein the first back-hoe pin (161), the second back-hoe pin (162), the third back-hoe pin (163) are aligned in the inner-outer direction, the fourth back-hoe pin (164) being located inside the first back-hoe pin (161); the first engagement teeth (141) are aligned with the second engagement teeth (142) in the inner-outer direction, and the third engagement teeth (143) are located inside the first engagement teeth (141).

5. A suspended conveyor according to claim 3, further comprising a stopper (2) arranged inside the conveyor track (1); the stopper (2) includes a horizontally arranged cylinder, and the stopper (2) is located on a moving path of the conveying trolley (1) when the cylinder is pushed out from inside to outside.

6. A suspension conveyor according to claim 5, characterized in that the stopper (2) has a plurality of stopper pins distributed back and forth; the front shovel (13) further comprises a second fluted disc (15) fixedly connected to the inner side of the first fluted disc (14), and a plurality of meshing teeth are arranged on the outer edge of the second fluted disc (15); when the stopper (2) is in contact with the conveying trolley (1), the meshing teeth of the second fluted disc (15) are meshed with the stopper pin shafts, and the meshing points of the meshing teeth of each second fluted disc (15) are equal in distance from the hinging shaft, so that fluctuation of overturning moment borne by the front shovel (13) is reduced.

7. The hanging conveyor as claimed in claim 6, characterized in that the second toothed disc (15) is provided with fourth (151), fifth (152) and sixth (153) engagement teeth from front to back, and the stopper (2) is provided with first (21), second (22), third (23), fourth (24) and fifth stopper pins (25) from front to back; during engagement of the engagement teeth of the second toothed disc (15) with the stopper pin, the third stopper pin (23), the fourth stopper pin (24) and the fifth stopper pin (25) are all located in a tooth slot between the sixth engagement teeth (153) and the fifth engagement teeth (152); the second stopper pin shaft (22) is positioned in a tooth slot between the fifth meshing tooth (152) and the fourth meshing tooth (151); the first stopper pin shaft (21) is located on the front side of the fourth engagement tooth (151).

8. The hanging conveyor as claimed in claim 7, wherein said first toothed disc (14) is flush with the front side of said second toothed disc (15), said first toothed disc (14) being flush with the rear side of said second toothed disc (15); the fourth meshing teeth (151) are arranged side by side with the first meshing teeth (141), the sixth meshing teeth (153) are arranged side by side with the third meshing teeth (143), and the fifth meshing teeth (152) and the second meshing teeth (142) are staggered in the front-rear direction.

9. A suspension conveyor according to claim 1, characterized in that the rear bottom of the conveyor trolley (1) is further provided with a damper (17), which damper (17) is in contact with the conveyor trolley (1) adjacent to the rear when the brake device is activated.

10. The hanging conveyor as claimed in claim 7, characterized in that in the first toothed disc (14) the first meshing tooth (141) and the second meshing tooth (142) have equal tooth heights, the third meshing tooth (143) having a tooth height greater than the tooth height of the first meshing tooth (141); in the second fluted disc (15), the tooth heights of the fourth meshing tooth (151) and the fifth meshing tooth (152) are equal, and the tooth height of the sixth meshing tooth (153) is larger than the tooth height of the fourth meshing tooth (151).