CN109292618B

CN109292618B - Automatic unhooking device and lifting machine

Info

Publication number: CN109292618B
Application number: CN201811456979.8A
Authority: CN
Inventors: 常疆; 吴琼; 温华剑
Original assignee: Beijing Sankuai Online Technology Co Ltd
Current assignee: Beijing Sankuai Online Technology Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-04-07
Anticipated expiration: 2038-11-30
Also published as: CN109292618A

Abstract

The application provides an automatic unhooking device and lifting machine. Automatic unhooking device includes: a device body; the hook is rotatably arranged on the device body and is used for bearing goods; the transmission mechanism is movably arranged on the device body and connected with the hook, the transmission mechanism is arranged to act along a first direction under the action of force in the first direction and generate pulling force acting on the hook, and the hook is switched from an initial position to a unhooking position along a first hour hand under the action of the pulling force, so that goods automatically slide down from the hook; and the resetting mechanism is arranged to drive the hook to rotate in the opposite direction of the first hour hand after the pulling force disappears, so that the hook is switched from the unhooking position to the initial position.

Description

Automatic unhooking device and lifting machine

Technical Field

The application relates to the technical field of article sorting and conveying, in particular to an automatic unhooking device and an elevator.

Background

At present, in current article letter sorting and conveying system, it is vertical lift conveying system comparatively commonly used, and the operation flow of sorting and transporting article is: after the order is generated, the sorter completes the sorting of the corresponding articles in the area of the articles in charge, and then automatically drops the articles onto a sorting conveyor line, such as a lifting platform, after the articles are conveyed to a designated height by a lifting machine, which requires that the lifting machine automatically unhook the articles when the articles reach the designated position.

Disclosure of Invention

In view of this, the present application provides an automatic unhooking device and a lifting machine, which can realize automatic unhooking of an object.

Specifically, the method is realized through the following technical scheme:

an automatic unhooking device comprising:

a device body;

the hook is rotatably arranged on the device body and is used for bearing goods;

the transmission mechanism is movably arranged on the device body and connected with the hook, the transmission mechanism is arranged to act along a first direction under the action of force in the first direction and generate pulling force acting on the hook, and the hook is switched from an initial position to a unhooking position along a first hour hand under the action of the pulling force, so that goods automatically slide down from the hook; and the resetting mechanism is arranged to drive the hook to rotate in the opposite direction of the first hour hand after the pulling force disappears, so that the hook is switched from the unhooking position to the initial position.

Optionally, the hook comprises a bearing surface for hanging goods, and the bearing surface is raised.

Optionally, the bearing surface is set at an angle α of 10 ° -45 ° to the horizontal plane.

Optionally, the device body further comprises a guide surface, the guide surface is obliquely arranged, and goods automatically slid down from the hook slide into a designated position along the guide surface.

Optionally, the device body includes an accommodating cavity, and the hook is gradually accommodated in the accommodating cavity in a process of switching the hook from the initial position to the unhooking position.

Optionally, drive mechanism includes the transmission shaft, the transmission shaft includes link and exogenic action end, the link with the couple is connected, exogenic action end includes the wheel, and exogenic action is in the wheel.

Optionally, the hook and the reset mechanism are respectively arranged on two sides of the transmission mechanism, the reset mechanism is connected with the transmission mechanism, and the transmission mechanism is connected with the lower part of the hook.

Optionally, the reset mechanism includes a spring, and during a stroke of the hook switching from the initial position to the unhooking position, the spring stores energy, and when the external force is removed, the restoring force of the spring drives the hook to reset to the initial position.

Optionally, the transmission mechanism is movably disposed relative to the device body.

Optionally, the hook is made of a self-lubricating material.

The application also provides a hoist, including:

a first upright post; and the automatic unhooking device of any one of the above;

the automatic unhooking device is movably arranged on the first upright post and goes up and down along the first upright post.

Optionally, the elevator further comprises a force application device configured to apply an acting force in the first direction to the transmission mechanism.

Optionally, the force application device is disposed at a certain position in a lifting stroke of the automatic unhooking device, and at the certain position, the force application device contacts with the transmission mechanism to drive the transmission mechanism to move along the first direction.

Optionally, the force application device includes a second column and a force application block fixed to the second column, the force application block includes an inclined surface, and during the lifting stroke, the transmission mechanism contacts with the inclined surface to increase the action stroke of the transmission mechanism.

Optionally, the first upright column and the second upright column are arranged in a split manner.

Drawings

Fig. 1 is a schematic illustration of a hoist section configuration shown in an exemplary embodiment of the present application;

FIG. 2 is a front view of an automatic unhooking apparatus shown in an exemplary embodiment of the present application;

FIG. 3 is a cross-sectional view of an automatic unhooking apparatus shown in an exemplary embodiment of the present application;

FIG. 4 is a schematic view of a force applying device shown in an exemplary embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating a partial structure of a hoist according to an exemplary embodiment of the present application; fig. 2 shows a schematic view of an automatic unhooking apparatus shown in an exemplary embodiment of the present application.

The hoist 10 of the embodiment of the present application includes a first column 12 and an automatic unhooking device 14 provided to the first column 12. The first upright 12 may be fixed with respect to the ground or may be movable with respect to the ground. The automatic unhooking device 14 is movably arranged on the first upright post 12 and ascends and descends along the first upright post 12.

In some embodiments, the first upright 12 may include a slide rail, and the automatic unhooking device 14 may be driven by an air cylinder or a linear motor to slide along the slide rail so as to ascend and descend along the first upright 12. In other embodiments, the first upright 12 may be provided with a drive chain to which the automatic unhooking device 14 is connected to be lifted along the first upright 12.

The automatic unhooking device 14 can transport the sorted articles to a designated location, for example, a hanging chain on the ceiling, during sorting and transportation of the articles, and can perform automatic unhooking of the articles when the designated location is reached.

Specifically, the automatic unhooking device 14 includes a device body 140, a hook 142, and a transmission mechanism 144. Wherein the device body 140 serves as a base for providing support and a mountable carrier for other components in the automatic unhooking device 14. The hook 142 can be used to carry goods, that is, during the transportation process after the goods are sorted, the goods are hung on the hook 142 and conveyed to a designated position, the kinds of the goods are not limited, and the goods can be the clothes hanger 20, the package, and the like. The transmission mechanism 144 is movably disposed on the device body 140, the transmission mechanism 144 can move in a first direction (X direction in fig. 2) under the action of a force in the first direction, the transmission mechanism 144 can generate a pulling force acting on the hook 142 during the movement, the pulling force can enable the hook 142 to rotate relative to the device body 140 along a first hour (S direction in fig. 2), the initial position is switched to the unhooking position, the rotation stroke is the unhooking stroke of the hook 142, and when the unhooking position is reached, goods can automatically slide off the hook 142 under the action of gravity.

As can be seen from the above description, the automatic unhooking device 14 can make the goods automatically fall into the target position when being transported to the designated height, without manual operation, thereby improving the transportation efficiency and realizing the automation of goods transportation.

The hook 142 is not limited to the hook-like structure, and in the present embodiment, the hook 142 is provided as a block-like structure provided in a state in which an article can be hung. The hook 142 includes a bearing surface 1420 for hanging the goods, and in order to reduce the probability of the goods falling during the transportation process, the bearing surface 1420 is raised, so that the blocking effect can be achieved, and the difficulty of the goods sliding from the bearing surface 1420 is increased.

In one embodiment, the lift angle α of the bearing surface 1420 relative to horizontal can be set to 10 ° -45 °. if the lift angle α is too small, the blocking effect is not good, and if the lift angle α is too large, the unhooking stroke of the hooks 142 is large, alternatively, the lift angle α can be further set to 15 ° -30 °.

During the transportation of the goods, the hook 142 is at an initial position, that is, the hook 142 protrudes from the outer surface of the device body 140, and this position enables the goods to be hung on the hook 142. When the hook 142 reaches a designated position, the hook 142 can generate a rotation stroke under the pulling force of the transmission mechanism 144 to reach an unhooking position, the rotation stroke is an unhooking stroke, and the direction S in fig. 2 is the rotation direction of the hook 142. At this time, the goods lose the blocking of the bearing surface 1420, automatically slide off the hook 142 under the action of gravity, and fall into a designated position.

The movement of the transmission mechanism 144 is not limited in this application, and in one embodiment, the transmission mechanism 144 is rotatably disposed on the device body 140. In other embodiments, the transmission mechanism 144 is movably disposed on the device body 140.

Referring to fig. 3, fig. 3 is a sectional view of an automatic unhooking apparatus according to an exemplary embodiment of the present application.

In the embodiment shown in fig. 3, the transmission mechanism 144 is movably provided to the apparatus body 140. Specifically, the transmission mechanism 144 includes a transmission shaft 1442, the transmission shaft 1442 extends along a direction perpendicular to the paper surface, the transmission shaft 1442 includes a connection end and an external force action end, the connection end is connected to the hook 142, the hook 142 can be driven to rotate by the pull rod, the external force action end supplies external force to drive the transmission shaft 1442 to move, and the moving direction is the first direction, that is, the X direction in fig. 2 and 3.

As shown in fig. 2, the external force application end includes a wheel 1440, and the wheel 1440 can increase the contact area with the external force application end when an external application part is applied, thereby ensuring reliable application of external force. The wheels can be arranged in a rotating mode or in a fixed mode. Also, the wheels may be configured as rubber wheels, which may reduce rigid impact and noise when an external force is applied.

In the process that the transmission shaft 1442 moves relative to the device body 140, in order to ensure the smoothness of movement, a linear sliding groove can be formed in the device body 140, and under the action of external force, the transmission shaft 1442 can slide along the linear groove to reduce vibration and movement deviation.

The automatic unhooking device 14 further comprises a reset mechanism 16, and the reset mechanism 16 is configured to move the hook 142 in the reverse direction of the first hour (the reverse direction of S in fig. 2) to reset when the pulling force applied to the hook 142 is removed. That is, when the hook 142 reaches the end of the unhooking stroke and the goods slide from the hook 142, the hook 142 is rotated in the reverse direction of the first hour by the returning mechanism 16 to return from the unhooking position to the initial position, i.e., to be ready for the next work cycle, so as to ensure the continuity of the transportation process.

In one embodiment, the restoring mechanism 16 may include a spring, i.e., an elastic restoring force of the spring is used to restore the hook. The spring can be directly connected to the hook 142 or can be connected to a drive shaft 1442 in the drive mechanism 144. When the spring is used for resetting, the spring stores energy in the unhooking stroke of the hook 142, when the acting force applied to the wheel 1440 is removed, the spring releases energy, and the elastic restoring force of the spring drives the hook 142 to generate a stroke opposite to the unhooking stroke so as to realize the resetting.

The spring may be a compression spring or a tension spring, the compression spring may bear compression deformation, the tension spring may bear tension deformation, the compression spring is compressed to generate compression deformation and store energy in the moving process of the transmission shaft 1442, and the tension spring is pulled to generate tension deformation and store energy in the moving process of the transmission shaft 1442. The pressure spring and the tension spring can be selectively arranged according to the relative position of the transmission shaft 1442 and the hook 142, which is not limited in the present application.

In the embodiment shown in fig. 2 and 3, the hook 142 and the return mechanism 16 are disposed on both sides of the transmission mechanism 144, respectively, the hook 142 is disposed on the left side of the transmission mechanism 144, and the return mechanism 16 is disposed on the right side of the transmission mechanism 144. In this case, the lower portion of the hook 142 is connected to the connecting end of the transmission shaft 1442, the restoring mechanism 16 employs a pressure spring, one end of the pressure spring is fixedly connected to the device body 140, and the other end of the pressure spring is connected to the connecting end of the transmission shaft 1442. In this scheme, the transmission shaft 1442 pulls the lower portion of the hook 142 under the action force in the X direction, the hook 142 turns outwards, the goods slide down, at this time, the pressure spring is compressed and stores energy, and after the pulling force is removed, the pressure spring recovers deformation to drive the hook 142 to reset, and the hook 142 reversely rotates to recover to the initial position.

However, it should be understood that the specific locations of the hook 142, the transmission mechanism 144, and the return mechanism 16 are not limited to those described above, and in other embodiments, the transmission mechanism 144 and the return mechanism 16 may be disposed on the left side of the hook 142, or the hook 142 and the transmission mechanism 144 may be disposed on both sides of the return mechanism 16, respectively, and so on.

In this embodiment, the device body 140 is configured as a housing structure, so that the device body 140 can hide some movable components, such as the hook 142, the transmission mechanism 144, and the reset mechanism 16, inside the device body 140 to reduce the risk of dangerous accidents.

Specifically, the device body 140 may be surrounded by a plurality of plates to form a fully-enclosed structure having a receiving cavity, and the hook 142, the transmission mechanism 144 and the restoring mechanism 16 may be connected to an inner wall of the receiving cavity. Wherein, the outer surface of the device body 140 is provided with an opening, and at an initial position, the hook 142 is exposed outside the device body 140 through the opening, so that goods can be hung on the hook 142.

The connecting end of the transmission mechanism 144 is arranged in the accommodating cavity and connected with the hook 142. When the pulling force is acted, the hook 142 is gradually accommodated in the accommodating cavity in the unhooking stroke until being completely hidden in the accommodating cavity. This scheme can avoid couple 142 to cause the hindrance to the landing of goods, reduces the friction between goods and the couple 142, prolongs couple 142's life.

The hooks 142 may be made of a self-lubricating material, such as teflon, polyamide, polyacetal, polyoxymethylene, polycarbonate, etc., which has self-lubricating properties to reduce friction and ensure smooth unhooking of the goods.

Referring to fig. 2 again, the surface of the device body 140 having the opening is also provided with a guide surface 1400, and the guide surface 1400 is inclined to the side where the designated position is located. When the article slides down from the hook 142, the article can further slide down along the guide surface 1400, so that the desired position can be reached more accurately.

The hoist 10 further includes a force applying device, which can apply an external force to the transmission mechanism 144 along a first direction, so that the transmission mechanism 144 generates a pulling force to rotate the hook 142. In an embodiment, the force applying device includes, but is not limited to, an air cylinder, a hydraulic cylinder or a linear motor, and in practical applications, the force applying device may be disposed on the device body 140, and a telescopic shaft of the force applying device is in transmission connection with the external force acting end of the transmission shaft 1442.

In this embodiment, in order to save energy and reduce environmental pollution, the force applying device does not use energy devices including electricity, compressed air, hydraulic oil, and the like, but drives the transmission mechanism 144 to move in the first direction by the contact force generated when the force applying device interferes with the external force acting end during the lifting stroke of the automatic unhooking device 14.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a partial structure of a hoisting machine according to an exemplary embodiment of the present application. The force applying device 18 includes a second column 180 and a force applying block 182 disposed on the second column 180, and the force applying block 182 is fixedly disposed with respect to the second column 180. The force application block 182 is provided at a position of a lifting stroke of the automatic unhooking device 14, and the height of the force application block 182 at the second upright 180 can be set with reference to a position when the automatic unhooking device 14 unloads the goods. At this position, the position of the force application block 182 interferes with the position of the wheel 1440, and the two are in contact with each other, and since the transmission shaft 1442 is movably disposed, the contact force between the force application block 182 and the wheel 1440 can drive the transmission shaft 1442 to move relative to the device body 140.

Further, force application block 182 may include angled surface 1820 and wheel 1440 may contact angled surface 1820 during contact. As the stroke increases, the amount of interference increases and the contact force increases until the hook 142 reaches the end of the unhooking stroke. The automatic unhooking device 14 continues to ascend until the external force acting end passes through the inclined surface 1820, the interference between the force application block 182 and the wheel 1440 is relieved, the external force disappears, correspondingly, the pulling force of the transmission mechanism 144 acting on the hook 142 disappears, the hook 142 resets under the action of the resetting mechanism 16, and then a transportation process of the hook 142 is finished.

To avoid interference of the auto-unhooking device 14 with the force application block 182 during the lifting stroke, the force application block 182 is provided with a cavity 1822 so that the device body 140 can pass through the cavity 1822 during the stroke of the wheel 1440 contacting the inclined surface 1820.

Referring to fig. 1 and 4, when the automatic unhooking device 14 ascends along the first upright post 12, the wheel 1440 contacts the inclined surface 1820 of the force application block 182, the force application block 182 presses the wheel 1440 to one side close to the first upright post 12, the connecting end of the transmission shaft 1442 drives the hook 142 to turn outwards, and the clothes hanger automatically unhooks.

In this embodiment, the first upright post 12 and the second upright post 180 are separately arranged and independently processed and manufactured, so that the processing difficulty and the assembly difficulty can be reduced.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A hoist, comprising:

a first upright post; and an automatic unhooking device; the automatic unhooking device is movably arranged on the first upright post and ascends and descends along the first upright post;

the automatic unhooking device comprises: the device comprises a device body and an accommodating cavity;

the goods are clothes hangers or packages;

the transmission mechanism is movably arranged on the device body and is arranged to act along a first direction under the action of force in the first direction and generate pulling force acting on the hook, the hook rotates from an initial position to a unhooking position along a first hour hand under the action of the pulling force, so that goods automatically slide down from the hook, and the hook is gradually accommodated in the accommodating cavity in the process of rotating from the initial position to the unhooking position; the transmission mechanism comprises a transmission shaft, the transmission shaft comprises a connecting end and an external force acting end, the external force acting end comprises a wheel, and external force acts on the wheel;

the reset mechanism is arranged to drive the hook to rotate in the opposite direction of the first hour hand after the pulling force disappears, so that the hook is switched from the unhooking position to the initial position;

the reset mechanism comprises a spring, the spring stores energy in the stroke of rotating the hook from the initial position to the unhooking position, when external force is removed, the restoring force of the spring drives the hook to reset to the initial position, the hook and the reset mechanism are respectively arranged on two sides of the transmission mechanism, the spring is a pressure spring, one end of the pressure spring is fixedly connected with the device body, and the other end of the pressure spring is connected with the connecting end of the transmission shaft; the connecting end of the transmission shaft is connected with the lower part of the hook;

the device body also comprises a guide surface which is obliquely arranged and along which goods automatically slid down from the hook slide into a designated position;

the elevator further comprises a force application device, wherein the force application device is arranged to apply acting force along a first direction to the transmission mechanism;

the force application device is arranged at a certain position in the lifting stroke of the automatic unhooking device, and at the position, the force application device is in contact with the transmission mechanism so as to drive the transmission mechanism to move along the first direction;

the force application device comprises a second upright and a force application block fixed on the second upright, the force application block comprises an inclined plane, and the transmission mechanism is in contact with the inclined plane in the lifting stroke so as to increase the action stroke of the transmission mechanism; the first upright post and the second upright post are arranged in a split manner.

2. The hoist as claimed in claim 1, characterized in that the hook includes a bearing surface for hanging goods, the bearing surface being raised.

3. The hoist as in claim 2, characterized in that the lift-off angle α of the bearing surface relative to the horizontal plane is set to 10 ° -45 °.

4. The hoist as claimed in claim 1, characterized in that the hook is made of a self-lubricating material.

5. The hoist as claimed in claim 1, wherein the force application block includes a cavity through which the device body passes on a stroke in which the wheel of the transmission mechanism contacts the inclined surface.